3263P - Measurement Daytronic - Free user manual and instructions

USER MANUAL 3263P Daytronic

Copyright © 1996, Daytronic Corporation. All rights reserved.

No part of this document may be reprinted, reproduced, or used in any form or by any electronic, mechanical, or other means, including photocopying and recording, or in any information storage and retrieval system, without permission in writing from Daytronic Corporation. All specifications are subject to change without notice.

MODEL

3163

ANALOG CONDITIONER

INSTRUCTION MANUAL

Daytronic Corporation

TABLE OF CONTENTS

Section Page

1 Description 1
2 Installation and Cabling 4
3 Calibration 8
4 Block Diagram 12
5 Verification of Normal Operation 16

LIST OF ILLUSTRATIONS

Figure Page

1 Model 3163 Analog Conditioner .... 1
2 Signal Source Wiring 3
3 Instrument Mounting Dimensions 6
4 Instrument Panel Mounting 7
5 I/O Wiring Data 9
6 Front Panel Description 11
7 Block Diagram 17

LIST OF TABLES

Table Page

1 Specifications 2

PLEASE NOTE: Sections 6 and 7, Figures 8 and 9, and Table 2 have been removed from this manual.

If you need information regarding specific 3163 components and circuitry, please contact the Daytronic Service Department at [phone].

INSTRUCTION MANUAL MODEL 3163 ANALOG CONDITIONER

1. DESCRIPTION

The Model 3163 Analog Conditioner accepts and conditions inputs from dc-to-dc lvdt's, potentiometer-type sensors, Hall-effect devices, photocells, current shunts, and other analog voltage sources with various grounding configurations and voltage and impedance levels. The output is the standard Five-Volt Data Signal Level of the 3000 Series Instruments and is available at three different output terminals, each having a different bandpass: (1) dc to 2 kHz, (2) dc to 200 Hz, and (3) dc to 2 Hz. Active low-pass filters are used to achieve the 200-Hz and 2-Hz cutoff frequencies. The filtered outputs provide averaging or smoothing of signals containing noise or other dynamic components to allow a stable digital indication and precise, jitter-free control action. The Model 3163 is shown in Figure 1 and the specifications are given in Table 1.

Deytronic ZERO CAL — SPAN — ANALOG CONDITIONER Model 3163

Figure 1. Model 3163 Analog Conditioner

Table 1. Specifications

Input Type: Floating differential; 2, 3, or 4 wire.

Input Sensitivity: Continuously adjustable in four jumper selectable ranges: 50 to 500 millivolts, 500 millivolts to 5 volts, 5 to 50 volts, and 50 to 250 volts.

Input Impedance: One megohm.

Common-Mode Range: ± 100 volts dc.

Common Mode Rejection Ratio: 70 dB, dc to 60 Hz.

Excitation Supply: Regulated 10 volts ( ±0.02% ), 20 milliamperes max.

Analog Outputs: Three analog outputs available; 0 to ±5 volts with 50% overrange, 5 milliamperes maximum. Bandpass is dc to 2 kHz, dc to 200 Hz, or dc to 2 Hz, depending on output selected. Active low-pass filters provide for rolloff of 60 dB per decade above cutoff frequency. Full-scale slew time is 1.4/f seconds, where f is the cutoff frequency.

Accuracy: 0.1% of full scale for 60 days ("hands off") following initial calibration by user.

Dimensions: 1.7 x 4.41 x 8.5 (HWD inches).

Operating Temperature Range: 0 to 130 degrees F.

Power Requirements: 105 to 135 volts ac, 50 to 400 Hz at 5 watts maximum.

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The Model 3163 has an isolated, floating differential input with wide common-mode range and excellent common-mode rejection. This allows even low-level signals to be obtained, essentially free from common-mode offset problems of either an ac or dc nature, from off-ground sources.

The signal source configuration can be either 2-, 3-, or 4-wire, as shown in Figure 2. A regulated 10-volt power supply is contained within the 3163 to permit the excitation of potentiometers, dc-to-dc lvdt's, and similar devices. A half-bridge terminal allows zero-center operation of potentiometers. Zero adjustment of tare input values is also included.

The input range is adjustable from ±50 millivolts to ±250 volts, full scale, to accommodate virtually any level requirement. Front-panel Coarse and Fine SPAN controls allow convenient scaling of the output signal for digital display in the appropriate engineering units.

Calibration of the 3163 is accomplished by replacing the input signal with a precise, internally-generated reference voltage. The calibration mode can be entered either by pressing the front-panel CAL pushbutton or by shorting terminals at the instrument I/O connector with an external switch, transistor turn on, or similar technique.

The Model 3163 Analog Input Conditioner is also available in two additional forms. The Model 3263 contains a Digital Indicator to view the analog output of the

graph TD
    A["DC SIGNAL SOURCE"] --> B["3163 INPUT"]
    B --> C["+10 VDC"]
    B --> D["COMMON"]
    E["DC-TO-DC TRANSDUCER"] --> F["+10 VDC"]
    E --> G["COMMON"]
    F --> H["Output"]
    G --> I["Output"]

Figure 2. Signal Source Wiring

Model 3163

conditioner. The Model 3363 includes a Limit section (in addition to a Digital Indicator) which provides High/OK/Low indications and outputs. The Digital Indicator and Limit features are standard to all 3000 Instruments and are covered in separate instruction manuals.

2. INSTALLATION AND CABLING

The following paragraphs provide the instructions for instrument installation and cabling.

MOUNTING. The 3000 Series Instruments can be operated as bench-top units or they can be rack- or panel-mounted. Clearance dimensions for a bench-mounted instrument are given in Figure 3. Panel cut-out dimensions for panel mounting are also shown in Figure 3. From one to four 3000 Series Instruments can be mounted in a 19-inch rack using the 1 3/4 inch high Model 3004 Rack Adaptor. Rack-mounting dimensions are also given in Figure 3. To panel mount an instrument, proceed as follows. Refer to Figure 4.

(a) Remove the front panel by removing two 2-56 x 3/8 flat-head screws.
(b) Remove the front bezel by removing the four 6-32 x 5/8 fillister-head screws.
(c) Make the panel cutout and drill the screw clearance holes indicated in Figure 3. The front bezel can be used as a template to define the rectangular cutout and locate the clearance holes.
(d) Hold the instrument enclosure behind the panel and reattach the front bezel to the enclosure from the front of the panel with the four mounting screws.
(e) Reinstall the front panel.
(f) Tighten the two securing screws of the rear-panel instrument I/O connector to ensure that the connector is seated and that the conditioner printed-circuit board is pushed fully forward so that the front-panel screwdriver adjustments and pushbuttons are accessible. These screws give approximately 1/8 inch of adjustment; consequently, this is the maximum panel thickness that should be used.

IMPORTANT: The unit is shipped with two spacer washers on the securing screws of the rear-panel I/O Connector. When panel-mounting the unit, you MUST REMOVE THESE WASHERS, so that the printed-circuit board may move forward about 1/8" during Step (f).

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CAUTION

Do not overtighten the connector securing screws or resultant damage may occur to the printed circuit board.

AC POWER CONNECTION. To protect operating personnel, the 3000 Series Instruments are equipped with a three-conductor power cord. When the cord is plugged into the appropriate receptacle, the instrument is grounded. The offset pin on the power cord is ground. To maintain the safety ground when operating the instrument from a two-contact outlet, use a three-prong to two-prong adaptor and connect the green pigtail on the adaptor to ground.

To prepare the instrument for operation, connect the power cable to a 105-135 volt ac, 50-400 Hz power source. The instrument can use up to 5 watts of power.

RANGE SELECTION. The input range of the Model 3163 is determined by jumper connections made at the instrument I/O connector. The full-scale input ranges provided are: (1) 50 to 500 millivolts, (2) 500 millivolts to 5 volts, (3) 5 to 50 volts, and (4) 50 to 250 volts. The jumper connection(s) used for each full-scale range are indicated in Figure 5(A).

INPUT CABLING. Cabling from the external analog source to the 3163 is accomplished via the supplied instrument I/O connector. The I/O connector pin numbers and functions are given in Figure 5. The 3163 has a floating differential input, and two-wire shielded cable is normally used for the input cabling. See Figure 5(B).

AUXILIARY SUPPLY CONNECTIONS. A 10-volt regulated power supply capable of delivering up to 20 milliamperes is included in the 3163 to power dc-to-dc transducers, potentiometers, and other such devices. Figure 5(C) shows a potentiometer connected to provide a zero-to-full scale output as the potentiometer wiper is moved. Figure 5(D) shows a potentiometer connected to provide a bipolar output (zero center). Figure 5(E) gives the wiring configuration for connecting the 3163 to a dc-to-dc transducer.

ANALOG OUTPUTS. Three different analog outputs are available at the instrument I/O connector. Each output has a different passband: dc to 2 kHz, dc to 200 Hz, and dc to 2 Hz. The 200-Hz and 2-Hz cutoff frequencies are achieved with

Figure 3. Instrument Mounting Dimensions

3000 SERIES MODULE PANEL WITH CUT OUT AND MOUNTING HOLES 6-32 x 5/8 FILLISTER- HEAD SCREW FRONT BEZEL 2-56 x 3/8 FLAT- HEAD SCREW FRONT PANEL

Figure 4. Instrument Panel Mounting

Model 3163

active low-pass filters. As the cutoff frequency is lowered, a trade off is made between noise elimination and increased time-to-answer or slew time. Each output has a 60-dB rolloff a decade from the cutoff frequency. The filter characteristics are given by the following equations.

$$ \mathrm{A} _ {\text { out }} @ \mathrm{f} _ {0} = 0. 7 \mathrm{A} _ {\text { in }} $$

$$ \mathrm{A} _ {\text {out}} @ 1 0 \mathrm{f} _ {0} = 0. 0 0 1 \mathrm{A} _ {\text {in}} $$

where A_out = output amplitude

$$ \mathrm{A} _ {\text { in }} = \text { input amplitude } $$

f_0= selected cutoff frequency

T = time-to-answer in seconds (output of filter within 0.1% of final value after step function is applied).

REMOTE CALIBRATION CHECK. The instrument can be placed in the calibration mode by shorting pins 10 (Signal Common) and 8 (Remote Cal) of the I/O connector. Figure 5(F) indicates three methods of remotely entering the calibration mode (external switch, transistor, or TTL source). The Remote Cal function provides a convenient means for periodically monitoring calibration of the instrument from a remote location without pressing the front-panel CAL button.

3. CALIBRATION

This section contains the instructions for calibrating the Model 3163. Included is a functional description of the instrument front panel (see Figure 6). To perform calibration, proceed as follows.

(a) Turn power ON by placing the rear-panel slide switch in the ON position. The front-panel indicator should light to indicate the application of ac power.
(b) With the external device in a zero output condition, set the 3163 output to zero using the front-panel ZERO control. In some instances, an integral digital indicator will be used to display the conditioner output (Model 3263 or 3363). When only the conditioner is supplied (3163), an external indicator must be used to monitor the conditioner output.

DAYTRONIC 3X63 INSTRUMENT I/O

CONNECTOR W/PIN DESIGNATIONS

(X=1, 2, or 3, e.g. 3163, 3263, or 3363)

Fig. 5 I/O Wiring Data

A. I/O Pin Assignments and Range Selection

graph TD
    A["ANALOG SIGNAL SOURCE"] --> B["C"]
    A --> C["+SIGNAL"]
    A --> D["-SIGNAL"]
    A --> E["CHASSIS"]
    B --> F["3"]
    C --> G["9"]

B. External Analog Signal Source

500 OHMS (MIN) B +10 VOLTS AUX C + SIGNAL 9 CHASSIS A POWER COMMON 3 -SIGNAL

C. External Potentiometer, Zero to Full Scale

Fig. 5 (cont'd)

500 OHMS (MIN) B +10 VOLTS AUX C + SIGNAL 9 CHASSIS A POWER COMMON 3 -SIGNAL 1 1/2 BRIDGE

D. External Potentiometer, Zero Center

DC-TO-DC LVDT B +10 VOLTS AUX C +SIGNAL 3 -SIGNAL A POWER COMMON 9 CHASSIS

E. DC-to-DC LVDT

8 REMOTE CAL 10 SIGNAL COMMON 8 REMOTE CAL 10 SIGNAL COMMON COMMON TTL 8 REMOTE CAL 10 SIGNAL COMMON COMMON

F. Remote Calibration Connections

DAYTRONIC ZERO CAL C f —SPAN— ANALOG CONDITIONER Model 3163

ZERO Control: Sets the instrument output to zero with a zero input signal applied.

CAL Pushbutton: When pressed, the CAL pushbutton causes the input signal to be replaced by an internally-generated dc reference level. This level can be adjusted by an internal Cal Level switch so that the analog output of the instrument is equal to or less than the value obtained with a full-scale input. This output is called the full-scale calibration value. The CAL pushbutton is used with the Coarse and Fine SPAN controls to calibrate the instrument.

SPAN Controls: The Coarse and Fine SPAN controls are used to set the instrument output to the full-scale calibration value or the full-scale value produced with an equivalent input.

Figure 6. Front-Panel Description

(c) Arrange for the input device to produce a known up-scale output that is greater than one-half of full scale. Adjust the Coarse and Fine SPAN controls until the output signal causes a reading equivalent to the input value.
(d) Remove the front panel as described in Section 2. Press the CAL pushbutton and set the internal Cal Level switch for the output reading nearest to, but not exceeding, the full-scale output of the 3163. Since this reading is related to the proper SPAN control settings for a known input, it can be recorded for use in future calibration checks or recalibration.

Model 3163

To calibrate the instrument in the future, simply press the CAL push-button and adjust the SPAN controls to obtain the reading recorded during the initial calibration.

(e) Replace the front panel of the instrument.

4. BLOCK DIAGRAM DESCRIPTION

The purpose of this section is to explain how the Model 3163 works by using a simplified block diagram of the conditioner. This is not intended to be used as a detailed theory of operation discussion for personnel untrained in electronic technology, but as a simplified explanation of the detailed schematic diagram provided with this manual. Throughout the following, refer to Figure 7.

POWER SUPPLIES. Primary power (115 volts ac, 50-400 Hz) is applied to the instrument by means of a rear-panel ac connection point and the supplied three-conductor power cord. A rear-panel slide switch is used to turn ON primary power. Overload protection is provided by a 0.25 ampere fuse mounted near the ac connection point. When the slide switch is ON, primary power is applied to the power transformer which provides the necessary power-line isolation and the low ac voltages required to develop the regulated dc voltages used in the 3163. The secondary of the power transformer has a grounded center tap, and a diode bridge functions as two full-wave rectifiers to produce ±9 volts regulated dc. Two three-terminal integrated-circuit Regulators are used to develop these regulated voltages. The reference terminal of each Regulator is biased with one or two diodes to make certain that a minimum regulated voltage of 9 volts is achieved. The proper diode biasing is accomplished at factory check out.

A dc reference voltage of +2.5 volts is further developed from regulated +9 volts by the use of a third three-terminal Regulator. This precision dc reference is used in the Auxiliary Power Supply circuit and, when the instrument is so equipped, in the Digital Indicator and Hi/Lo Limits circuits. The Auxiliary Power Supply circuit is discussed in a following paragraph.

The -9 volts regulated is used to light the front-panel indicator (LED) which indicates the application of ac power to the instrument.

The + unregulated voltage from the diode bridge is used to develop the +10 volt output of the Auxiliary Power Supply. In addition, this voltage is routed to the

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Digital Indicator and HI/LO Limits circuit boards where it is used to develop +5 volts regulated for the TTL logic employed in these circuits. Refer to the Digital Indicator and HI/LO Limits Instruction Manuals.

Another transformer secondary is used to develop a regulated ±10 volts isolated supply (isolated from the output Signal Common). The use of this supply in the signal conditioner input circuitry makes possible the high common-mode range of the 3163.

A third transformer secondary supplies 5 volts ac to the Digital Indicator circuit board (when supplied). This ac voltage is used to develop an unregulated +6 volts dc. Refer to the Digital Indicator Instruction Manual.

The +10 volts Auxiliary Power Supply is developed from the + unregulated voltage as previously stated. The +10 volts Auxiliary is available at the instrument I/O connector for use as excitation for dc-to-dc transducers or external potentiometers. In addition, a Half-Bridge output is available. The connection point of two equal resistors (Rl-R2) placed across the power supply output is the Half-Bridge output (+5 volts). When the Half-Bridge output is connected to the -Signal input, the wiper of a potentiometer connected across the Auxiliary Power Supply can vary from +5 volts to -5 volts. This wiring arrangement is illustrated in Figure 5.

Transistor QI functions as an emitter-follower series regulator, with an operational amplifier providing the regulation control. The plus terminal of the Control Amplifier is biased from the +2.5 volt Reference. The minus terminal is normally at +2.5 volts through the dividing action of resistors R3 and R4. As the output of the Auxiliary Power Supply varies, the Control Amplifier output varies accordingly and provides a base drive to QI to maintain the supply output at +10 volts. A Zener diode in series with the output of the Control Amplifier acts as a Level Translator so that the amplifier can operate near its mid-range.

Transistor Q2 functions as a Current Limiter in the event that the supply output is accidentally shorted or otherwise overloaded. When the current through resistor R5 becomes great enough to forward bias Q2, transistor Q2 is turned on, and current is shunted through R6 and Q2, with the raw dc voltage now being dropped across R6.

Model 3163

CALIBRATION CIRCUIT. The calibration mode is entered when either the front-panel CAL button is pressed or the Remote Cal line is shorted to Signal Common at the Instrument I/O connector. Either of these conditions cause the output state of a Comparator to change. An Optical Isolator is controlled by the Comparator output, and its output controls Analog Switches S1, S2, and S3. The Optical Isolator is required since the 3163 input circuitry is powered from the isolated power supplies to allow operation from sources having off-ground or common mode voltages on their outputs.

When the 3163 is in the calibration mode, the input signal is disconnected from the Input Amplifier and replaced by an internally generated calibration voltage. This voltage is developed by a three-terminal Regulator from the +10 volts isolated. The output of the Regulator (+2.5 volts isolated) can be divided by a series of parallel resistances which are connected to the Regulator through switches. These switches in actuality are a single internal switch termed the Cal Level switch. The switch is a rotary type switch with ten positions, each of which yields up to four contact closures corresponding to the four weights of binary-coded decimal (BCD), that is, 1, 2, 4, and 8. The ten positions allow various combinations of contact closures, thus providing various Cal Levels to the Input Amplifier via Analog Switch Sl. The user selects the Cal Level that provides a full-scale output indication less than, but closest to, that observed when a full-scale input signal is applied. The indication can then be used as a calibration value for future calibrations.

Analog Switch S2 is used during calibration to remove any offset imposed on the Input Amplifier by the ZERO control. Analog Switch S3 is used during calibration to remove a gain factor incorporated when the 500 millivolt-to-5 volt full-scale input range is selected. These functions are more completely described in the following paragraphs.

SIGNAL CONDITIONER. The input signal is applied to a resistance divider arrangement that has various taps to the Input Amplifier. The full-scale input range is determined by the tap used, and tap selection is accomplished with jumper-wire connections at the I/O connector. However, two of the available ranges (5 mv to 500 mv and 500 mv to 5 v) use the same tap point. The difference in signal levels encountered for the two ranges is compensated by changing the gain of the Input Amplifier. This is accomplished by installing a second jumper when the 500 millivolt-to-5 volt range is selected. This jumper places a short across a feedback resistor (R8) in the Input Amplifier circuit, increasing feedback, thereby decreasing gain. When the calibration mode is used, the gain correction is removed via Analog Switch S3.

The Coarse SPAN control also affects the gain of the Input Amplifier and is used for scaling the instrument output. The ZERO control provides a means of offsetting the output of the Input Amplifier. This zero offset voltage is eliminated during calibration by Analog Switch S2.

The +Signal input, after being properly divided, is applied to the plus terminal of the Input Amplifier, a non-inverting operational amplifier which is powered from the ±10 volt Isolated Supplies. The minus terminal of the amplifier is returned to the Isolated Common through resistor R7. This arrangement allows the Input Amplifier to be totally referenced to the Isolated Common which is also the -Signal input to the conditioner. Common-mode or offset voltages up to 100 volts can be tolerated by the Input Amplifier.

The output of the Input Amplifier is applied to an inverting operational amplifier through resistor R9. The values of resistors R9 and R10 are such that the gain of the amplifier is approximately 1/200. In addition, the amplifier is powered from ±9 volts regulated, and the plus terminal of the amplifier is returned directly to Signal Common. To comply with the summing point restraint of the amplifier, its output must go to the value which allows the minus terminal to be at the same potential as the plus terminal. An offset voltage of 10 volts at the output of the Input Amplifier would take the output of the inverting amplifier to -0.05 volts, and the offset would be dropped across resistor R9.

A second inverting amplifier with a gain of 200 is used to reamphfy the signal to its original level and return the proper signal polarity. It has the same configuration as the first amplifier, but the values of R11 and R13 are such to provide again of 200. Also, resistor R12 is returned to the Isolated Common so that the R11 and R12 junction is held at 0 volts or Signal Common. Since the plus terminal of the amplifier is tied to Signal Common, the output of the amplifier is quiescently at 0 volts also, the desired condition with an offset input but no signal input.

The net result of the two inverting operational amplifiers is to provide a gain of unity and the proper conditioning to eliminate offset or common-mode voltages. Only the input signal differential is passed through the amplifiers to the output filtering circuits of the conditioner. The Fine SPAN control is located in the feedback circuit of the second amplifier to provide a fine gain adjustment during calibration.

Three analog outputs of the conditioned signal are available at the module I/O connector. The three outputs provide three different passbands of dc to 2 kHz, dc to

Model 3163

200 Hz, and dc to 2 Hz. Output selection is a trade off between eliminating unwanted signals caused by vibration or increasing the time-to-answer (slew rate) of the conditioner. The 200-Hz and 2-Hz cutoff frequencies are achieved with the use of active low-pass filters. The rolloff of each output is 60 dB within a decade of the cutoff frequency.

5. VERIFICATION OF NORMAL OPERATION

It is the purpose of this section to aid the user in determining, in the event of a malfunction to which the Model 3163 is suspected of contributing, whether the instrument is functioning normally or whether it is the source of the observed trouble. In the event the unit requires repair, a complete parts list, schematic diagram, and component location drawing are included in this manual. The user may also contact the factory Service Department or the local Daytronic Representative for assistance.

If the instrument is suspected of faulty operation, observe the following steps.

(a) If the unit is totally inoperative (front-panel power indicator does not light), check the primary power fuse (Fl) located on the standup board which forms the power cord connection point. If the fuse is blown, replace it with a 0.50 ampere fuse (see Table 2 for part number). Before reapplying power, visually inspect the power cord and the input power connections for any discrepancy which could have caused the overload.

(b) Disconnect the normal input source and make a jumper connection between pin C (+Signal) and pin 3 (-Signal) at the instrument I/O connector.

(c) Adjust the front-panel ZERO control and verify that the instrument output can be set to zero.

(d) Press the front-panel CAL button and observe an up-scale output indication. Set the module output to the full-scale calibration value using the Coarse and Fine SPAN controls. Steps (b) thru (d) verify the ability of the amplifier circuitry to adjust to zero and respond to the internal calibration signal. If this check is passed, the conditioner amplifier circuits are functioning normally. Check the instrument I/O connector for proper wiring of the input before proceeding. See Figure 5.

graph TD
    A["Power Common"] --> B["+10V AUX OUT"]
    B --> C["R1"]
    C --> D["R2"]
    D --> E["R3"]
    E --> F["R4"]
    F --> G["PWR COM"]
    G --> H["CONTROL AMPLIFIER +2.5V REF"]
    H --> I["PWR COM"]
    I --> J["AUXILIARY POWER SUPPLY"]
    J --> K["R5"]
    K --> L["SERIES REGULATOR Q1"]
    L --> M["CURRENT LIMIT"]
    M --> N["LEVEL TRANSLATOR"]
    N --> O["PWR COM"]
    O --> P["OPTICAL ISOLATOR"]
    P --> Q["S1"]
    Q --> R["INPUT PROTECTION"]
    R --> S["S2"]
    S --> T["ANALOG SWITCH"]
    T --> U["S3"]
    U --> V["S2"]
    V --> W["ZERO"]
    W --> X["+V_IN"]
    X --> Y["ISO COM"]
    Y --> Z["S3"]
    Z --> AA["S2"]
    AA --> AB["INPUT AMPLIFIER +V_IN0"]
    AB --> AC["R9"]
    AC --> AD["AMPLIFIER A_V = 1/200"]
    AD --> AE["R10"]
    AE --> AF["R11"]
    AF --> AG["R12"]
    AG --> AH["FINE SPAN"]
    AH --> AI["ACTIVE LOW-PASS FILTER"]
    AI --> AJ["DC-TO-2 HZ ANALOG OUTPUT"]
    AI --> AK["ACTIVE LOW-PASS FILTER"]
    AK --> AL["DC-TO-200 HZ ANALOG OUTPUT"]
    AK --> AM["DC-TO-2 KHZ ANALOG OUTPUT"]

    subgraph Power ON INDICATOR
        AN["POWER ON INDICATOR"] --> AO["DIODE REGULATORS"]
        AO --> AP["HALF-WAVE RECTIFIERS"]
        AP --> AQ["DiODE BRIDGE"]
        AQ --> AR["SIg COM"]
        AR --> AS["PWR COM"]
        AS --> AT["5 VAC"]
        AT --> AU["POWER TRANSFORMER"]
        AU --> AV["ON"]
        AV --> AW["5.50 AMP PULSE"]
        AW --> AX["TO 115 VAC 80-400 Hz"]
        AX --> AY["+V_IN0"]
        AY --> AZ["-V_IN0"]
        AZ --> BA["ISO COM"]
        BA --> BB["+V_IN0"]
        BB --> BC["-V_IN0"]
        BC --> BD["SIg COM"]
        BD --> BE["PWR COM"]
        BE --> BF["SIg COM"]
        BF --> BG["SIg COM"]
        BG --> BH["SIg COM"]
        BH --> BI["PWR COM"]
        BI --> BJ["SIg COM"]
        BJ --> BK["PWR COM"]
        BK --> BL["SIg COM"]
        BL --> BM["PWR COM"]
        BM --> BN["SIg COM"]
        BN --> BO["PWR COM"]
        BO --> BP["PWR COM"]
        BP --> BQ["PWR COM"]
        BQ --> BR["PWR COM"]
        BR --> BS["PWR COM"]
        BS --> BT["PWR COM"]
        BT --> BU["PWR COM"]
        BU --> BV["PWR COM"]
        BV --> BW["PWR COM"]
        BW --> BX["PWR COM"]
        BX --> BY["PWR COM"]
        BY --> BZ["PWR COM"]
        BZ --> CA["PWR COM"]
        CA --> CB["PWR COM"]
        CB --> CC["PWR COM"]
        CC --> CD["PWR COM"]
        CD --> CE["PWR COM"]
        CE --> CF["PWR COM"]
        CF --> CG["PWR COM"]
        CG --> CH["PWR COM"]
        CH --> CI["PWR COM"]
        CI --> CJ["PWR COM"]
        CJ --> CK["PWR COM"]
        CK --> CL["PWR COM"]
        CL --> CM["PWR COM"]
        CM --> CN["PWR COM"]
        CN --> CO["PWR COM"]
        CO --> CP["PWR COM"]
        CP --> CQ["PWR COM"]
        CQ --> CR["PWR COM"]
        CR --> CS["PWR COM"]
        CS --> CT["PWR COM"]
        CT --> CU["PWR COM"]
        CU --> CV["PWR COM"]
        CV --> CW["PWR COM"]
        CW --> CX["PWR COM"]
        CX --> CY["PWR COM"]
        CY --> CZ["PWR COM"]

Figure 7. Block Diagram

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(e) If an unstable digital display or excessive output noise is encountered, the problem may be in the output filter circuits. The 2-Hz and 200-Hz outputs use active low-pass filters. The 2-kHz output is provided directly from the conditioner output amplifier. In general, if a problem is encountered with either the 2-Hz or 200-Hz output, but the problem disappears when another output is used, a filter circuit is faulty.
(f) The above can be verified by checking each analog output with a test oscilloscope as a square-wave input signal is applied. The time-to-answer in seconds (output of conditioner within 0.1% of final value after step function is applied) should be 0.7 milliseconds for the 2-kHz output, 7 milliseconds for the 200-Hz output, and 0.7 seconds for the 2-Hz output.
(g) If the Auxiliary Power Supply is used, connect a test oscilloscope to pins A (Power Common) and B (+10 volts) at the instrument I/O connector. The oscilloscope should indicate a dc level of approximately 10 volts that is free of excessive noise and ripple.

MODEL

3200 / 3300

DIGITAL INDICATOR

INSTRUCTION MANUAL

-187135 -18235 +1915 +2.145 [phone] -9925

3000
Instrument Series

MODEL

3200 / 3300

DIGITAL INDICATOR

INSTRUCTION MANUAL

Daytronic Corporation

TABLE OF CONTENTS

Section Page

1 Description 1
2 Installation 4
3 Operation 7
4 Block Diagram Description 8
5 Verification of Normal Operation 15

LIST OF ILLUSTRATIONS

Figure Page

1 3000 Series Instrument with Digital Indicator .... 1
2 Full-Scale Displays for Three Ranges 6
3 Scale, Decimal Point, Dummy Zero Switches 7
4 A/D Converter Timing Diagram 10
5 Block Diagram Description 13

LIST OF TABLES

Table Page

1 3000 Series Model Numbering 2
2 Specifications 4

PLEASE NOTE: Sections 6 and 7, Figures 6 and 7, and Table 3 have been removed from this manual.

If you need information regarding specific 3200/3300 components and circuitry, please contact the Daytronic Service Department at [phone].

INSTRUCTION MANUAL 3200/3300 SERIES DIGITAL INDICATOR

1. DESCRIPTION

The 3000 Instrument Series is a family of premium signal conditioning instruments that includes models to accommodate virtually all types of transducers and signal sources commonly encountered in electro-mechanical testing and control operations. The 3000 Instruments are available in three forms: Form 1 contains the Signal Conditioner only; Form 2 is the Signal Conditioner with Digital Indicator; Form 3 is the Signal Conditioner with Digital Indicator and Hi-Lo Limits. The Model numbering system used with the 3000 Series identifies the form and the type of signal source. This numbering system is further explained in Table 1. From Table 1, it can be seen that all models having a Digital Indicator are identified by a 32XX or 33XX number, with the last two digits identifying the type of signal source (thermocouple, LVDT, etc).

+ 4985 pound-feet NULL — BALANCE — +CAL SPAN — CAL OZYTRONIC STRAIN GAGE CONDITIONER/INDICATOR Model 3278

Figure 1. 3000 Series Instrument with Digital Indicator

Table 1. 3000 Series Model Numbering

"3" is series identifier, used with all units: Second digit identifies "form": "1" = signal conditioner only "2" = signal conditioner with digital indicator "3" = signal conditioner with digital indicator and Hi-Lo limits Third and fourth digits identify type of signal source: "10" = Type J Thermocouple "11" = Type K Thermocouple "15" = Thermistors "30" = LVDT's "40" = Pulse Pick-up's (Frequency) "63" = DC Volts/Millivolts/ DC-DC LVDT's/Potentiometers "70" = Strain Gages (DC excited) "78" = Strain Gages (AC excited) Etc. Model 3 X X X

The 3000 Series instruction manual system is designed to provide the user with the following documentation: (1) a separate instruction manual for each type of Signal Conditioner purchased; (2) an instruction manual covering only the Digital Indicator section of a 3000 Series instrument, but applicable to any Form 2 or Form 3 instruments; and (3) an instruction manual covering only the Hi-Lo Limit section

of a 3000 Series instrument, but applicable to any Form 3 instrument. It is the purpose of this manual to cover the Digital Indicator section of all Form 2 and Form 3 instruments.

The Digital Indicator section of any Form 2 or Form 3 instrument consists of a printed-circuit board on which are mounted the required circuit components for digitizing the analog output of the Signal Conditioner and the light-emitting-diode (LED) display. This board is mounted above the circuit board which contains the components for the Signal Conditioner. The digits which comprise the display are mounted on a small board which is affixed to the digitizer board with a right-angle printed-circuit board header. The Form 3 instruments contain an additional printed-circuit board for the Hi-Lo Limit circuitry.

The LED display is comprised of six orange digits with polarity sign. The 0.4 inch height of the digits, combined with the inherent brilliance of an LED type of display, make the display easily discernible in normal room lighting. The display is viewed through the red plastic front panel of the instrument to provide filtering of external light and enhance the display brilliance. The front panel is opaque except for that portion through which the display is viewed. A typical 3000 Instrument with Digital Indicator is shown in Figure 1.

The Digital Indicator scaling is selected with rear-panel pushbutton switches. Full-scale values of ±5000 counted by 1's, ±10000 counted by 2's, or ±20000 counted by 5's can be selected. The most significant digit (MSD) of the display contains the polarity sign and is either unlit or lights as a 1 for displays of 10000 or greater. The least significant digit (LSD) is a dummy zero which can be turned ON or left unlit as desired. In addition, decimal-point position can be selected to give display readings as follows: 1.XXXX, 1X.XXX, 1XX.XX, 1XXX.X, or 1XXXX (no decimal point). Decimal-point location and dummy zero selection are also accomplished with rear-panel switches (miniature slide-switch bank). When the 20000 scale is selected, the display is digitally limited to read a maximum number of 19995 since the MSD is either unlit or reads a "1" for displays of 10000 or greater. The 5000 and 10000 scales are analog limited to an overrange of approximately 5600 and 11200, respectively. An overrange condition on any range is indicated by a flashing display. The sampling rate of the display is 3 samples per second. The Digital Indicator specifications are summarized in Table 2.

Table 2. Specifications

Display: Orange LED's, six digits with polarity sign, 0.4 inch height. MDS is either unlit or reads a 1 and contains the polarity sign. LSD is a dummy zero which can be programmed to be lit or unlit (rear-panel switch).

Scaling: Selectable at rear panel; full-scale values of ±5000 counted by 1's, ±10000 counted by 2's, or ±20000 counted by 5's.

Decimal Point: Decimal-point location can be selected with rear-panel switches as follows: 1.XXXX, 1X.XXX, 1XX.XX, 1XXX.X, or 1XXXX (no decimal point).

Sampling Rate: 3 samples per second.

Legends: Each instrument supplied with an appropriate assortment of user-installable rub-on engineering unit legends.

2. INSTALLATION

The 3000 Series Instruments can be operated as bench-top instruments or they can be rack- or panel-mounted. Dimensions for all three types of mounting and corresponding mounting instructions are given in the accompanying Signal Conditioner Instruction Manual. The following paragraphs provide the instructions for legend installation, scale selection, decimal point/dummy zero selection, and ac power connection.

Legend Installation. A sheet of dry-transfer lettering is supplied with each instrument to provide the user with a means of affixing an engineering-unit legend to the front panel. The sheet contains the common engineering units encountered in making electro-mechanical measurements and additional alpha-numeric characters. Space is supplied on the front panel to affix the desired legend to the right of the display. To affix the legend to the front panel, press the dry-transfer sheet firmly

Daytronic Corporation

against the panel with the desired legend or character situated in place. Rubbing the legend or character with a ball-point pen will cause the legend to be transferred onto the panel. The legend can be protected from scratches which may occur during calibration/operation of the instrument by lightly spraying it with Krylon #1306 Workable Fixative.

If it is desired to change a legend, remove the legend to be replaced by pressing masking tape against the legend, then pulling off the gummed tape.

Scale Selection. Figure 2 shows the full-scale display for the three selectable scales: ±5000 counted by 1's, ±10000 counted by 2's, and ±20000 counted by 5's. The figure also indicates the last active digit and the dummy zero which can be lit for any scale selection. The first digit of the display contains the polarity sign and lights as 1 on the 10000 and 20000 scales for values equal to or greater than 10000. On the 20000 range, because the most significant digit is either unlit or a 1 and the count is by 5's, the greatest number which can be displayed is 19995. Of course, this would be displayed as 199950 if the dummy zero were lit.

Scale selection is accomplished with the two pushbutton switches located at the rear panel. The panel is marked to indicate which switches are pushed IN or left OUT for the corresponding scale selection. The switches have a push-push action and are illustrated, with the scale selection coding, in Figure 3. With both switches OUT, the ±5000 range is selected. With the left switch OUT and the right switch IN, the ±10000 range is selected. With the left switch IN and the right switch OUT, the ±20000 range is selected.

Decimal Point/Dummy Zero Selection. Decimal-point location and dummy-zero activation are selected with a rear-panel miniature slide switch bank. The switch bank is marked on the rear panel as shown in Figure 3. The decimal-point position can be fixed at any one of the display locations indicated on Figure 3. Place any one of slide switches 1 through 4 ON to light the decimal point at the desired location. Place slide switch 5 ON if no decimal point is to be lit. To activate the dummy zero (digit to the right of last active digit will continuously light as a zero), place slide switch 6 ON.

AC Power Connection. To protect operating personnel, the 3000 Series Instruments are equipped with a three-conductor power cord. When the cord is plugged into the appropriate receptacle, the instrument is grounded. The offset pin on the

"3000" Digital Indicator

Figure 2. Full-Scale Displays for Three Ranges

Daytronic Corporation

power cord is ground. To maintain the safety ground when operating the instrument from a two-contact outlet, use a three-prong to two-prong adaptor and connect the green pigtail on the adaptor to ground.

To prepare the instrument for operation, connect the power cable to a 105-135 volt ac, 50-400 Hz power source. The instrument can use up to 5 watts of power.

3. OPERATION

The only operation required is turning ON/OFF ac power to the instrument. This is accomplished with the rear-panel slide switch (see Figure 3). The display lights immediately when ac power is ON.

NOTE

In all instances, a flashing display indicates that an overrange condition has occurred, and it is likely that the Signal Conditioner amplifiers are being overdriven. The 5000 and 10000 ranges are analog limited at approximately 5600 and 11200, and while a number may be displayed, if

5000 10000 20000 1.X.X.X.X 0 ON 1 2 3 4 5 6

Figure 3. Scale, Decimal Point, Dummy Zero Switches

"3000" Digital Indicator

the display is flashing an overrange condition has occurred. Consequently, the displayed value may be invalid. The 20000 range is digitally limited to 19995. When an overrange occurs on this range, the display will flash all zeros.

4. BLOCK DIAGRAM DESCRIPTION

The purpose of this section is to explain how the Digital Indicator works by using a simplified block diagram. This section is not intended to provide a detailed explanation of electronic circuits for personnel untrained in electronic technology. However, it provides an adequate overview of operation for those familiar with basic electronic circuit operation. Throughout the following, refer to Figure 5.

Power Supplies. The integrated-circuit chips which comprise the A/D Converter and the Overrange Comparator are CMOS circuits which require ±9 volts regulated. These voltages are supplied from power supplies contained on the Signal Conditioner circuit board and are discussed in the Signal Conditioner Instruction Manual.

The digital part of the A/D Converter, the Bit Selector, and the various logic gates and inverters are operated from +5 volts regulated (TTL logic). The +5 volt supply consists of a three-terminal Regulator. The unregulated input to the Regulator is obtained from Signal Conditioner circuit board (unregulated side of +9 volt supply).

The BCD-to-7-Segment, Decoder, Display Drivers, and Display LED's operate from +6 volts unregulated. Five volts ac is supplied from the Signal Conditioner circuit board (secondary of power transformer located on board). Plus 6 volts unregulated is developed with a Diode Bridge and Filter located on the Digital Indicator board.

A +2.5 volts precision reference is supplied from a precision power supply located on the Signal Conditioner circuit board. This reference is used in the A/D Converter for digitizing the analog input signal.

A/D Converter. The A/D Converter is a dual-slope converter which digitizes the analog input signal using a ratiometric integrating technique. The analog signal input, a reference input, and a clock input are applied to the converter. The measurement cycle is divided into an Auto-Zero cycle, a Signal Integrate cycle, and

a Reference Integrate cycle. Each cycle has a time base in which a certain amount of clock pulses occur. The clock used is a 100-kHz crystal oscillator. The Auto-Zero cycle is used to bring the output of the integrator to zero and lasts 10,000 counts. The next cycle is the Signal Integrate cycle which also lasts 10,000 counts. If the analog input is zero at the start of the Signal Integrate cycle, the integrator will see the same voltage that existed in the previous state. Thus, the integrator output will not change but will remain stationary during the entire Signal Integrate cycle. If the analog input is not equal to zero, an unbalanced condition exists compared to the Auto-Zero cycle and the integrator will generate a ramp whose slope is proportional to the analog input. At the end of this cycle, the sign of the ramp is determined. If the input signal was positive, a voltage which is VREF more negative than during Auto-Zero is applied to the integrator input. The A/D Converter chip generates the equivalent of a +Reference or -Reference from the single +Reference applied. The reference voltage returns the output of the integrator to zero. The time, or number of counts, required to do this is proportional to the input voltage. The Reference Integrate cycle can be a maximum of 20,000 counts. The full measurement cycle is then a maximum of 40,000 counts, with the answer to the measurement being achieved when the reference voltage returns the integrator output to zero. The full measurement cycle is shown in Figure 4.

The DIGIT DRIVES are positive-going signals that last for 200 clock pulses (see Figure 4). The scan sequence is D5 (MSD), D4, D3, D2, and D1 (last active digit). The scan is continuous unless an overrange occurs. Then all DIGIT DRIVES are blanked from the end of the first scan until the beginning of the Reference Integrate cycle when D5 will start the scan again. This gives a blinking or flashing display as a visual indication of overrange. Because the Digital Indicator has 5000 and 10000 ranges as well as a 20000 range, an analog Overrange Comparator is used as well as the inherent overrange capability of the A/D Converter. The Overrange Comparator is described in a following paragraph.

The binary-coded-decimal (BCD) outputs of the A/D Converter are positive logic signals that go on simultaneously with the DIGIT DRIVE. Since the DIGIT DRIVES are blanked for an overrange on the 20000 scale, the display will flash all zeros when this condition occurs on this scale.

Input Attenuators/Range Switches. The 5-volt analog signal input (full scale) and the 2.5 volt reference from the Signal Conditioner are applied to attenuator networks where 2-volt and 1-volt signal and reference inputs are developed for the A/D Converter. Since, on the 20000 range, the Reference Integrate cycle can be

"3000" Digital Indicator

Figure 4. A/D Converter Timing Diagram

twice as long as the Signal Integrate cycle, the analog input voltage required to give a full-scale reading is exactly equal to 2 VREF. Consequently, on the 20000 range, the VREF is 1 volt and the VSIG is 2 volts for full scale. On the 10000 range, the two cycles can be equal; thus, VSIG = VREF = 2 volts. On the 5000 range, the analog voltage for a full-scale reading is then equal to 1/2 VREF; thus, VREF must be 2 volts and VSIG 1 volt. The appropriate levels are switched to the A/D Converter through the rear-panel Range switches.

Bit Selector/Decoding Logic. The Bit Selector transfers one of two sets of 4-line BCD data applied at input ports to output ports upon receiving a command at the A SELECT or B SELECT port. When the A SELECT port is high, the X input data is transferred to the Z output ports. Conversely, when the B SELECT input is high, the Y input data is transferred to the Z output ports. The Y data is obtained directly from the BCD output ports of the A/D Converter. The X data is comprised of specially coded bits used to count by 2's or 5's when the 10000 or 20000 ranges are selected, respectively. On the 5000 range, the A SELECT input is held low through the Range switches and the B SELECT input is high. The Y data is transferred to the output of the Bit Selector and the display count is by 1's. On the 10000 range, the A SELECT input is held low except when the Dl DIGIT DRIVE is high. When D1 is high, the A SELECT is high and the B SELECT is low, transferring the X data to the Z ports of the Bit Selector and allowing the display to count by 2's. Operation on the 20000 range is identical except that the bit coding is arranged to give a count by 5's with the X data.

Display Coding/Driving. The display is a 4.5-digit LED display with polarity and a dummy zero. DS2 through DS6 are 7-segment displays with common cathodes. The Bit Selector output ports are connected as inputs to a BCD-to-7-Segment Decoder. The 7 outputs of the decoder are connected as inputs to the segments (anodes) of DS2 through DS6. The DIGIT DRIVES of the A/D Converter are used to sequentially turn on DS2 through DS6 through Display Drivers which sink current. DS1 is either unlit or lights as a 1 for displays of 10000 or greater. Unlike DS2 through DS6, DS1 is a common anode device. The DS1 segments (cathodes) are sinked via a display driver from the 1 bit of the A/D Converter. The DS1 anode is then brought high by D5 through a driver comprised of an inverter and a transistor which applies +6 volts unregulated to the anode when D5 is high.

The last digit of the Display (DS6) is the dummy zero digit. When the Dummy Zero Select switch is ON, the DS6 cathode is sinked when D5 is high. The outputs of the BCD-to-7-Segment Decoder are tied to the DS6 segments. Also, when D5 is

"3000" Digital Indicator

high, the B SELECT input to the Bit Selector is pulled low through the NOR gate connected to the port. The A SELECT input is also low since it is either held hard low through the Range switches on the 5000 range or it is connected to D1 through the Range switches on the 10000 and 20000 ranges (when D5 is high D1 must be low). With the A SELECT and B SELECT inputs both low, the Z ports of the Bit Selector assume the low state no matter what the X and Y input data reads. Consequently, each time D5 is high, DS6 displays a zero.

The polarity sign is also part of DS1. The minus (-) segment is always lit through 6 volts and an external resistor tied to circuit common. When the A / D Converter senses a positive polarity, the POLARITY port goes high. This action drives an inverter low to light the vertical portion of the polarity sign.

Decimal point position is selected with rear-panel slide switches (as is dummy zero selection). Only one of the Decimal slide switches is turned ON at any one time. The decimal-point LED for DS1 is hard wired to +6 volts. Turning ON the associated Decimal switch connects an external resistor and circuit common to the other side of the decimal-point LED. Since the remaining digits with decimal-point LED's (DS2 through DS4) are common cathodes devices, each LED is sinked when the corresponding DIGIT DRIVE is high and associated Decimal switch is ON, applying +6 volts to the other side of the LED through an external resistor.

Analog Overrange. Digital overrange for the 20000 range is inherent in the A/D Converter chip and has been previously described. However, for the 5000 and 10000 ranges, an analog overrange circuit is required. The Overrange Comparator is dc biased with equal resistors returned to the ±9 volt supplies so that its output is at approximately 4.5 volts. Both of the comparator inputs are connected through diodes to the analog input from the Signal Conditioner. When the analog input is one diode drop above or below the comparator biasing, an overrange condition exists since approximately 5.2 volts is present at the analog input (5 volts = full-scale value). The output of the Overrange Comparator goes low when either of the input diodes is forward biased. The comparator output and the BUSY output of the A/D Converter are gated through an OR gate. The BUSY signal is high during the Signal and Reference Integrate cycles of the A/D Converter, then it goes low. This causes the output of the OR gate to go low. The BLANK port of the BCD-to-7-Segment Decoder is normally held high through an external resistor. When the OR gate output goes low, the BLANK port is pulled low through a diode, causing DS2 through DS6 to flash. Since DS1 is not driven from the decoder, a second diode and resistor are used to pull the A/D Converter 1-bit output low when the overrange OR gate is low. This action causes DS1 to flash.

Figure 5. Block Diagram

graph TD
    A["Signal Attenuator"] -->|+2.5 VOLT REFERENCE INPUT| B["REFERENCE ATTENUATOR"]
    B -->|+2.5 VOLT REFERENCE INPUT| C["RANGE SWITCHES"]
    C -->|+2.5 VOLT REFERENCE INPUT| D["A/D CONVERTER DIGIT DRIVES"]
    D --> E["BCD TO-7-SEGMENT DECODER"]
    E --> F["DISPLAY DRIVERS"]
    F --> G["DS1 ANODE"]
    F --> H["DS2-DS6 SEGMENTS (ANODES)"]
    F --> I["DS3-DS4"]
    F --> J["DS5-DS6"]
    F --> K["DS1-DS2-DS3-DS4-DS5-DS6"]
    L["DIVISION RELATION"] --> M["DIODE BRIDGE"]
    M --> N["FILTER"]
    N --> O["+9 VOLTS UNREG"]
    P["OUTRANGE COMPARATOR"] --> Q["DISPLAY FLASHES WHEN LOW"]
    R["UNREGULATED"] --> S["+9 VOLTS REG"]
    T["REFERENCE"] --> U["1-VOLT REFERENCE"]
    V["0-VOLT"] --> W["-9 V"]
    X["+0 V"] --> Y["+2.5 VOLT REFERENCE INPUT"]
    Z["±5 VOLT ANALOG INPUT"] --> AA["SIGNAL ATTENUATOR"]
    AB["+2.5 VOLT REFERENCE INPUT"] --> AC["REFERENCE ATTENUATOR"]
    AD["100-KHZ CLOCK"] --> AE["CLOCK IN"]
    AF["DUMMY ZERO SELECT"] --> AG["DUMMY ZERO SELECT"]
    AH["Polarity"] --> AI["BIT SELECTOR"]
    AJ["SET"] --> AK["Bit Selector"]
    AL["ACK"] --> AM["Clock In"]
    AN["Polarity"] --> AO["Bit Selector"]
    AP["SET"] --> AQ["Bit Selector"]
    AR["Polarity"] --> AS["Bit Selector"]
    AT["Polarity"] --> AU["Bit Selector"]
    AV["Polarity"] --> AW["Bit Selector"]
    AX["Polarity"] --> AY["Bit Selector"]
    AZ["Polarity"] --> BA["Bit Selector"]
    BB["Polarity"] --> BC["Bit Selector"]
    BD["Polarity"] --> BE["Bit Selector"]
    BF["Polarity"] --> BG["Bit Selector"]
    BH["Polarity"] --> BI["Bit Selector"]
    BJ["Polarity"] --> BK["Bit Selector"]
    BL["Polarity"] --> BLA["Bit Selector"]
    BN["Polarity"] --> BO["Bit Selector"]
    BP["Polarity"] --> BPB["Bit Selector"]
    BPQ["Polarity"] --> BPQB["Bit Selector"]
    BPQP["Polarity"] --> BPQPQ["Bit Selector"]
    BPQPQ --> BPQPQQ["Bit Selector"]
    BPQPQQ --> BPQPQQQ["Bit Selector"]
    BPQPQQQ --> BPQPQQQ["Bit Selector"]
    BPQPQQQ --> BPQZPQ
    BPQZPQQ --> BPQZPQ
    BPQZPQQ --> BPQZPQ

5. VERIFICATION OF NORMAL OPERATION

It is the purpose of this section to aid the user in rapidly determining whether the Digital Indicator is functioning normally or whether it is the source of the observed trouble. In the event a repair to the Digital Indicator is required, a complete parts list, schematic diagram, and component location drawing are included in this manual. The user may also contact the factory Service Department or the local Daytronic Representative for assistance.

One of the two techniques can be used to rapidly determine whether the Digital Indicator is malfunctioning or whether the problem is in the Signal Conditioner, transducer, or transducer cabling. If the unit is a Form 2 instrument (no Hi-Lo Limits), attempt to zero and calibrate the Signal Conditioner while observing the Signal Conditioner analog output (use the dc-to-2Hz output) on a dc coupled oscilloscope. If the Digital Indicator is unstable or reads erratically, but the oscilloscope indicates a stable analog output from the Signal Conditioner, the problem is likely in the Digital Indicator. In the event the Signal Conditioner output is unstable or noisy, consult the Signal Conditioner Instruction Manual for the proper action to be taken.

If the instrument is a Form 3 type, push one of the Limit pushbuttons and observe how the limit value is displayed on the Digital Indicator. If the display is stable with the Limit button pressed, but is unstable when the button is released, the problem is in the Signal Conditioner, transducer, or transducer cabling. If the display is unstable or erratic whether the button is pressed or released, the problem is in the Digital Indicator.

3000 SERIES

"C" Option

4-20 mA CURRENT OUTPUT

INSTRUCTION MANUAL

1. General Description

Operating in this mode, any 3000 Series instrument can transmit high-accuracy measurement data as process signals for supervisory monitoring and control. ^1 Each “C” unit produces two kinds of analog output simultaneously: (1) its normal voltage output and (2) a current output continuously proportional to the voltage signal to within ±0.05% .

As normally shipped, this option generates a current output within the ISA standard signal range of 4 to 20 mA, corresponding to a range of 0 to +5 V. Bipolar ranges of ±16 mA and 4 to 12 to 20 mA are also available, each corresponding to -5 to +5 V. Voltage compliance is +5 V relative to Signal Common.

Pinout for I/O Connectors (REAR VIEW)

Fig. 1 Rear-Panel Location of 3000C Current Output Board

3000 "C Option" Board I/O Connector (20-pin)² Pin 1 Pin 10 Pin A Pin L Conditioner Board I/O Connector (20-pin)

2. Connections / Output Mode Selection

Pin assignments for the 3000C board's 20-pin I/O connector (shown in Fig. 1) are given in the following table. ^3

Pin Number Function

8 CURRENT OUTPUT SIGNAL

Range will be standard unipolar 4-20 mA if Pins 9 and 10 are both unconnected; the output is single-ended, and should be returned to Pin J (COMMON)

9 ±16 mA MODE

Connecting Pin 9 to Pin K will set the current output range to bipolar ±16 mA

10 4-12-20 mA MODE

Connecting Pin 10 to Pin L will set the current output range to bipolar 4-12-20 mA (with 12 mA as effective "zero")

J COMMON

K, L for OUTPUT MODE SELECTION

^1 NOTE: The “C” Option may NOT be used in combination with the “P,” “G,” “R,” or “S” Option.
^2 In Form 3 (“33XX”) instruments with the “C” Option, current-output circuitry is integrated with the 3300 HI-LO Limits Board.
^3 For all other (limit-related) I/O connections for Form 3 (“33XX”) instruments with the “C” Option, see the Model 3300 HI-LO Limits Instruction Manual.

R6 10K R19 15K R24 12 MA R20 12.4 K R25 1K 4MA R21 9040K +9 +9V +9V U3 4052 I4 X1 15X2 I3 X4 A -9V +9V -9V +9V -9V +9V -9V +9V -9V +9V -9V +9V -9V +9V -9V +9V -9V +9V -9V +9V -9V +9V -9V +9V -9V +9V -9N 14 15X2 11X3 10X4 TLO62 C3 Q1 Q2 CR3 IN756 CR2 IN756 R15 R10K R5 49.9 P3-8 P3-ID LOAD 250Ω +OUTPUT PIN B COMMON PIN J R10 10OK +9 +9V -12 VOUT R3- P3-L P3-K P3-I0 P3-S P3-ND R10 10OK +9 +9V -7.5 VOUT LM308 3 VOUT 4 VOUT 5 VOUT 6 VOUT 7 VOUT 8 VOUT 9 VOUT 10 VOUT 11 VOUT 12 VOUT 13 VOUT 14 VOUT 15 VOUT 16 VOUT 17 VOUT 18 VOUT 19 VOUT 20 VOUT 21 VOUT 22 VOUT 23 VOUT 24 VOUT 25 VOUT 26 VOUT 27 VOUT 28 VOUT 29 VOUT 30 VOUT 31 VOUT 32 VOUT 33 VOUT 34 VOUT 35 VOUT 36 VOUT 37 VOUT 38 VOUT 39 VOUT 40 VOUT 41 VOUT 42 VOUT 43 VOUT 44 VOUT 45 VOUT 46 VOUT 47 VOUT 48 VOUT 49 VOUT 50 VOUT 51 VOUT 52 VOUT 53 VOUT 54 VOUT 55 VOUT 56 VOUT 57 VOUT 58 VOUT 59 VOUT 60 VOUT 61 VOUT 62 VOUT 63 VOUT 64 VOUT 65 VOUT 66 VOUT 67 VOUT 68 VOUT 69 VOUT 70 VOUT 71 VOUT 72 VOUT 73 VOUT 74 VOUT 75 VOUT 76 VOUT 77 VOUT 78 VOUT 79 VOUT 80 VOUT 81 VOUT 82 VOUT 83 VOUT 84 VOUT 85 VOUT 86 VOUT 87 VOUT 88 VOUT 89 VOUT 90 VOUT 91 VOUT 92 VOUT 93 VOUT 94 VOUT 95 VOUT 96 VOUT 97 VOUT 98 VOUT 99 VOUT 100 VOUT

CSP	C	7-1-96	WAS VERSION 003	50
TT	B	2-7-96	REV. 884 W 81, WAS. 002 TO 003	MAY
	A	G-24-96	REVEY OF CREDIT, NO. 2	M
ZONE	REV	DATED	DESCRIPTION	APR	CONTROL
CHL DCT	CSP		DAYTRONIC CORPORATION MIANSBURG, OHIO
CLM DT	DFT
DATE	7-12-93		REV. 7-1-96	REV. LEVEL	C
4 TO 20 MA CURRENT OUTPUT CARD				s3000C NUMBER

3000 SERIES

"G" Option

DUAL GALVANIC ISOLATED OUTPUT

INSTRUCTION MANUAL

1. General Description

With this optional circuit board, a Form 1 ("31XX") or Form 2 ("32XX") instrument can furnish two independent galvanic outputs, fully isolated not only from each other but also from the 3000 instrument's "common." Each output is normally set at the factory for a full-scale range of 0-10 V-DC (±0.2%) when the data signal from the 3000 unit's conditioner card is at its standard 5-V level. Though normally preset at "2.00," each input's gain can be adjusted within ±5%, if desired, by means of potentiometer controls on the G-option card.

The use of galvanically isolated outputs prevents ground-loop effects in interconnections with remote data-acquisition systems or controllers. The presence of two independent outputs lets you send collected data to two different systems or devices, each with its own ground.

Load limit for each output exceeds 10 kilohms. Output bandwidth is normally 40 Hz; the "G" option can be easily modified, however, for other bandwidths up to 500 Hz (contact the factory for details).

NOTE: The only other options that may be combined with the "G" option are the "B" (battery-powered) and "F" (230 V-AC-powered) options.

2. Additional 3000(G) Specifications

Output Range: ±10 V-DC full scale (2 mA max), normal; internal controls give approximately ±5% of adjustment authority on both SPAN and ZERO

Common-Mode Range: ±500 V, max

Common-Mode Rejection Ratio: DC: -120 dB; at 60 Hz: -60 dB

Linearity: ±0.1% of full scale

Maximum Zero Drift, After Warmup of One-Half Hour: ±0.2% of full scale*

Maximum Span Drift, After Warmup of One-Half Hour: ±0.2% of full scale*

* Applies to the 3000 "G" Option only and does not include possible drift contributed by the signal conditioner board of the base 3000 instrument.

3. Installation and Cabling

When viewing the 3000 instrument from the rear, the Galvanic Output Board is in the upper left of the rear panel (see Fig. 1). Access to the output signals is through a 20-pin edge card connector with a key slot between contact pads 4 and 5. The user must provide his own cable connection to the card, pinout for which is as follows:

Pin No. (see Fig. 1) Function

2,B SIGNAL 1 OUT

1,A,3,C ISO COM 1

9,K SIGNAL 2 OUT

8,J,10,L ISO COM 2

Cabling of the isolated analog outputs is shown in Fig. 2. Each output is single-ended and returns to its own ISO-LATED COMMON. Each output's SHIELD should be tied to the instrument chassis via one of the screws holding the rear panel.

4. Calibration

NO ADJUSTMENT OF THE G OPTION IS NECESSARY DURING NORMAL USE.** Follow the normal calibration procedure given in the respective 3000 Instrument Instruction Manual.

** As mentioned above, separate ZERO and SPAN adjustment controls are provided on the G Option board for each isolated output, if it is desired to refine the "2.00" gain to which the output has been set prior to shipment. These controls, shown in Fig. 3, may be accessed by removing the 3000 instrument's front panel.

Fig. 1 Rear-Panel Location of 3000G Galvanic Output Board
Pinout for I/O Connectors (REAR VIEW)

3000 "G Option" Board I/O Connector (20-pin) Pin 1 Pin 10 Pin A Pin L Conditioner Board I/O Connector (20-pin)

Fig. 2 Cabling of Isolated Outputs

graph TD
    A["Input of G Option Board"] --> B["Pin 2 or B"]
    A --> C["Pin 1, A, 3, or C"]
    A --> D["Pin 9 or K"]
    A --> E["Pin 8, J, 10, or L"]
    B --> F["External Device"]
    C --> F
    D --> F
    E --> F
    F --> G["Shield"]
    G --> H["Output"]
    style A fill:#f9f,stroke:#333
    style F fill:#ccf,stroke:#333
    style G fill:#cfc,stroke:#333

Fig. 3 Location of Internal G-Option Controls

FRONT VIEW 3100G CARD CONTROLS LOCATED BEHIND FRONT PANEL. Conditioner CARD

ISOLATION GUARD P3 P34 P35 R120 U103 R118 49.0K C110 .00uF R119 680K R117 180K R115 100K R113 100K R112 900K C107 .01uF U102 + ISO 1 SUPPLY (+15V) R103 120K - ISO 1 SUPPLY (-15V) R104 1K C105.1uF C106.2uF C107.3uF C108.4uF C109.5uF C110.6uF C111.7uF C112.8uF C113.9uF C114.0uF C115.1uF C116.2uF C117.3uF C118.4uF C119.5uF C120.6uF C121.7uF C122.8uF C123.9uF C124.0uF C125.1uF C126.2uF C127.3uF C128.4uF C129.5uF C130.6uF C131.7uF C132.8uF C133.9uF C134.0uF C135.1uF C136.2uF C137.3uF C138.4uF C139.5uF C140.6uF C141.7uF C142.8uF C143.9uF C144.0uF C145.1uF C146.2uF C147.3uF C148.4uF C149.5uF C150.6uF C151.7uF C152.8uF C153.9uF C154.0uF C155.1uF C156.2uF C157.3uF C158.4uF C159.5uF C160.6uF C161.7uF C162.8uF C163.9uF C164.0uF C165.1uF C166.2uF C167.3uF C168.4uF C169.5uF C170.6uF C171.7uF C172.8uF C173.9uF C174.0uF C175.1uF C176.2uF C177.3uF C178.4uF C179.5uF C180.6uF C181.7uF C182.8uF C183.9uF C184.0uF C185.1uF C186.2uF C187.3uF C188.4uF C189.5uF C190.6uF C191.7uF C192.8uF C193.9uF C200.0kΩ/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/Ω/ ISOLATION GUARD P34A P34B P34B(A) P34B(B) P34B(C) P34B(D) P34B(E) P34B(F) P34B(G) P34B(H) P34B(I) P34B(J) P34B(K) P34B(L) P34B(M) P34B(N) P34B(O) P34B(P) P34B(Q) P34B(R) P34B(S) P34B(T) P34B(U) P34B(V) P34B(X) P34B(Y) P34B(Z) P34B(C) P34B(D) P34B(E) P34B(F) P34B(G) P34B(H) P34B(I) P34B(J) P34B(K) P34B(L) P34B(M) P34B(N) P34B(O) P34B(P) P34B(Q) P34B(R) P35A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0) ISOLATION GUARD P34A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0)A(0) ISOLATION GUARD (CHANNEL 2 ZERO) + ISO 2 SUPPLY (+15V) + ISO 2 SUPPLY (-15V) + ISO 2 SUPPLY (-25V) + ISO 2 SUPPLY (-35V) + ISO 2 SUPPLY (-45V) + ISO 2 SUPPLY (-55V) + ISO 2 SUPPLY (-65V) + ISO 2 SUPPLY (-75V) + ISO 2 SUPPLY (-85V) + ISO 2 SUPPLY (-95V) + ISO 2 SUPPLY (-105V) + ISO 2 SUPPLY (-115V) + ISO 2 SUPPLY (-125V) + ISO 2 SUPPLY (-135V) + ISO 2 SUPPLY (-145V) + ISO 2 SUPPLY (-155V) + ISO 2 SUPPLY (-165V) + ISO 2 SUPPLY (-175V) + ISO 2 SUPPLY (-185V) + ISO 2 SUPPLY (-205V) + ISO 2 SUPPLY (-225V) + ISO 2 SUPPLY (-245V) + ISO 2 SUPPLY (-265V) + ISO 2 SUPPLY (-285V) + ISO 2 SUPPLY (-305V) + ISO 2 SUPPLY (-325V) + ISO 2 SUPPLY (-345V) + ISO 2 SUPPLY (-365V) + ISO 2 SUPPLY (-385V) + ISO 2 SUPPLY (-405V) + ISO 2 SUPPLY (-425V) + ISO 2 SUPPLY (-445V) + ISO 2 SUPPLY (-465V) + ISO 2 SUPPLY (-485V) + ISO 2 SUPPLY (-505V) + ISO 2 SUPPLY (-525V) + ISO 2 SUPPLY (-545V) + ISO 2 SUPPLY (-565V) + ISO 2 SUPPLY (-585V) + ISO 2 SUPPLY (-605V) + ISO 2 SUPPLY (-625V) + ISO 2 SUPPLY (-645V) + ISO 2 SUPPLY (-665V) + ISO 2 SUPPLY (-685V) + ISO 2 SUPPLY (-705V) + ISO 2 SUPPLY (-725V) + ISO 2 SUPPLY (-745V) + ISO 2 SUPPLY (-765V) + ISO 2 SUPPLY (-785V) + ISO 2 SUPPLY (-805V) + ISO 2 SUPPLY (-825V) + ISO 2 SUPPLY (-845V) + ISO 2 SUPPLY (-865V) + ISO 2 SUPPLY (-885V) + ISO 2 SUPPLY (-905V) + ISO 2 SUPPLY (-925V) + ISO 2 SUPPLY (-945V) + ISO 2 SUPPLY (-965V) + ISO 2 SUPPLY (-985V) + ISO 2 SUPPLY (-995V) + ISO 2 SUPPLY (-999V) + ISO 2 SUPPLY(-999V)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSO)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSI)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSIII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOSII)(SOS II)(SOS II)(SOS II)(SOS II)(SOS II)(SOS II)(SOS II)(SOS II)(SOS II)(SOS II)(SOS II)(SOS II)(SOS II)(SOS II)(SOS II)(SOS II)(SOS II)(SOS II)( SOSTARD NO.:7367-7-/-)

CSR	I	11-18-98	BEX 20000	OCH
CSR	H	9-5-97	BEX 9770	EF8
CSR	6	7-1-96	NEW WOODS 800	SES
SLS	F	3-24-94	CORRECTED 7000	FN
SLS	E	2-24-94	DWG. FING 5 700 & 8200	FN
CLM	D	4-9-93	BEX 800-4940	MN
	C	11-29-90	DBW 100, ALCT-4618 WHIT-REACH AND CHILL 600	MN
	B	10-31-90	DWG. FING 56000	MN
	A	8-2-98	AWGD 516,000 WITH GROUP DENT, 1000	MN
DFT.	REV.	DATED	DESCRIPTION	APP. CONTROL
DSA DES.	DSA DES.	DAYTRONIC CORPORATION		MIKANSBURG, OHIO
KTS DFT.	FX DFT.
DATE	1-12-67	REV 11-18-98		REV. LEVEL I
GALVANIC ISOLATED OUTPUT NAME OPTION CARD (3100G)				s3000G NUMBER

3000 SERIES

"P" Option

ANALOG PEAK CAPTURE

INSTRUCTION MANUAL

1. General Description

With the installation of a special "P" version of the 3000 Series HI-LO LIMITS board (shown in Figure 2, below), real-time analog peak capture is possible for a Form 2 ("32XX") or Form 3 ("33XX") instrument, in addition to its normal "tracking" function. ^1

Controlled either by front-panel push buttons (Fig. 1) or by a remote user-installed switch (Fig. 3), a "P" unit can "freeze" and display the last positive input-signal "peak" value to have been perceived. The analog output is held at this value until a TRACK/RESET command is applied. ^2 A subsequent higher signal excursion disables the "hold," permitting the capture of subsequent higher peaks. Because it is digitally held, a displayed peak value will not decay. The maximum decay rate for a held analog output is only 0.1% of full scale per minute.

For capture of negative “peaks” (signal minima), the input lines may be inverted.

With all Form 3 instruments, limits are automatically latched upon peak capture, and are automatically reset on return to normal TRACK mode. See the Model 3300 HI-LO Limits Instruction Manual for complete details regarding limit setup and operation (including mode selection, setting of limit setpoint values, and logic output connections for annunciation and control). For selection of engineering-unit digital range and resolution, see the Model 3200/3300 Digital Indicator Instruction Manual.

+ 4798 psi NULL — BALANCE — +CAL SPAN -CAL STRAIN GAGE INDICATOR/CONTROLLER DAYTRONIC Model 3378P LOW OK HIGH Set Low Limit Set High Limit Eunder in = Limit Set Both in = Track Both Out = Peak

Fig. 1 Model 3378P Front Panel, showing push buttons for Peak / Track control

Pinout for I/O Connectors (REAR VIEW)

Fig. 2 Rear-Panel Location of 3000P Peak Capture Board

3000 "P Option" Board I/O Connector (20-pin)³ Pin 1 Pin 10 Pin A Pin L Conditioner Board I/O Connector (20-pin)

1 NOTE: The "P" Option may NOT be used in combination with the "C," "G," R," or "S" Option.
^2 To prevent low-level signal noise from triggering a "peak hold," the peak capture function is automatically disabled when the input is less than 8% of full scale. If you require peak capture within the 0-8% range, contact the factory.
^3 In Form 3 (“33XX”) instruments with the “P” Option, peak-capture circuitry is integrated with the 3300 HI-LO Limits Board.

2. Connections

Pin assignments for the 3000P board's 20-pin I/O connector (shown in Fig. 1) are given in the following table.*

Pin Number Function

7 PEAK ANALOG SIGNAL
	Holds peak analog input value when in PEAK mode;follows analog input continuously when in TRACK mode
8 TRACK
	Used for external peak reset control (see Fig. 3, below)
9 SLOW
	Tie to Pin K for narrowband-signal peak processing (DC to 2 Hz)
10 FAST
	Tie to Pin K for wideband-signal peak processing (DC to highest available low-pass filter corner frequency)

B or J** COMMON

K PEAK RESPONSE SELECT

Tied to Pin 9 or 10 to select narrowband or wideband peak processing, respectively

As indicated in the table, a jumper must be installed between PIN K and either PIN 9 ("SLOW") or PIN 10 ("FAST"), depending on whether you want to capture peaks for a narrowband signal (DC to 2 Hz) or a wideband signal (DC to highest available low-pass filter corner frequency), respectively.

3. Operation

As mentioned above, PEAK/TRACK operation can be locally controlled by front-panel push buttons, while the PEAK RESET function can be remotely controlled by a logic-level command to the rear 3000P connector (when the instrument is set to PEAK mode via the front-panel buttons).

For front-panel control, you will use the two LIMIT SET buttons as follows:

BOTH BUTTONS PRESSED ("IN")

Places the unit in TRACK mode. The analog output at Pin 7 will continuously follow the analog input. This mode is used to reset the instrument following peak capture.

BOTH BUTTONS UNPRESSED ("OUT")

Places the unit in PEAK mode. The analog output at Pin 7 will continuously represent the most positive value experienced by the analog input signal since PEAK mode was last begun.

When (and only when) the instrument is set to PEAK mode via the front-panel buttons, a PEAK RESET can be externally applied by connecting Pin 8 of the rear I/O connector with the COMMON line (Pin B or J**), as shown in Fig. 3. Thus, when these pins are connected via an external contact closure (as in the top diagram of Fig. 3), CLOSING the switch will cause the output at Pin 7 to once again TRACK the analog input, while OPENING the switch will return the output to PEAK mode.

Fig. 3
Track/Reset Via External Command (Switch, Open Collector Transistor, or TTL Logic)

8 (TRACK) B or J (COMMON)**

8 (TRACK) B or J (COMMON)**

graph TD
    A["8 (TRACK)"] --> B["TTL"]
    C["B or J (COMMON)**"] --> B["TTL"]

P4 11> 12> 8> FAST ANALOG OUTPUT SLOW ANALOG OUTPUT TO TRACK BUTTONS +9 VOLTS -9 VOLTS DVM HOLD 3> SIGNAL COMMON Q1 2N3704 R13 10K R12 10K U5 1/4 TL074 C7 1uF -9V CR7 1N914 R6 10KMF R8 10KMF R9 10KMF C9 500pF C8 .0047uF R20 10KMF R7 5.6M +9V R11 25K ZERO U2 6 TL071 C9 500pF U6 10 CD4053 Y 15 CD4053 X 14 INH VEE 7 -9V CR5 10 FD333 CR6 15M R21 15M C4 .1uF C3 .1uF C4 .1uF C5 .1uF C4 .1uF C3 .1uF C2 .1uF C1 .1uF C2 .1uF C1 .1uF C4 .1uF C3 .1uF C2 .1uF C1 .1uF C4 .1uF C3 .1uF C2 .1uF C1 .1uF C4 .1uF C3 .1uF C2 .1uF C1 .1uF C4 .1uF C3 .1UFA 7-9V 6-9V 5-9V 4-9V 3-9V 2-9V 1-9V 0-9V 0-9V 0-9V 0-9V 0-9V 0-9V 0-9V 0-9V 0-9V 0-9V 0-9V 0-9V 0-9V 0-9V 0-9V 0-9V 0-9V 0-9V 0-9V 0-9V 6-4-87 3200 P P3 →10 FAST →K ANALOG INPUT →9 SLON →8 TRACK →7 PEAK ANALOG OUTPUT →J SIGNAL COMMON IC TYPE PIN IO PIN IO 2U, U3 TL071 7 +9 4 -9 U5 TL074 4 +9 11 -9 U6 14053 16 +9 7,8 -9 P2 R4 1M R5 2.2M R3 100K +9V U5 8 1/4 TL074 +9 R1220K C6 .01uF R2 1.5M CF DENOTES METAL FILM RESISTOR MF DENOTES SIGNAL COMMON A4 73600 1. CONNECT TO K FOR FAST PEAK MODE. 2. CONNECT B AND J TOGETHER THROUGH EXTERNAL SWITCH OR TRANSistor FOR EXTERNAL PEAK RESET CSR O B-4-8E FOR MOUT A D CSR C T-18-8E MAX VINCUS E## SES SLS G 3-1-94 CHRD,PR C T3 MOUT FM JFS A L1-18-8I CHRD,PR TO QCOM SES OPT. REV. DATID DESCRIPTION APP. CONTROL DPT. OFF EM DATEND INFORMATION APP. CONTROL DPT. OFF EM DATEND INFORMATION APP. CHK: DAYTRONIC CORPORATION HANISBURG,CHIO DATE 12-12-79 REV 9-4-86 REV.LATE: NAME 3000 PEAK BOARD S3200P NUMBER TYP: TYP IN: TYP OUT: TYP REF: A4 73600

CSR	D	9-4-96	FOR WM2	50
CSR	C	7-18-96	WAS VERSION 999	SES
SLS	B	3-1-94	CHAWAY C 73 WARS	FM
JFS	A	11-18-91	CHW. WM TO WM	SES
DFT.	REV.	DATED	DESCRIPTION APP.	CONTROL
DAYTRONIC CORPORATION
DATE	12-12-79	REV 9-4-96		REV. LEVEL: D
NAME	3000 PEAK BOARD			53200P NUMBER

TO 50-8 POLE TO DYN OUTPUT LOW LIMIT SET POINT PEAK OUTPUT FAST ANALOG OUTPUT SLOW ANALOG OUTPUT +9V +9V 10 +9V 13 3 FINE LOW LIMIT COARSE HUNGER HIGH LIMIT FINE TO SET HIGH LIMIT SWITCH 5A SIGNAL COMMON POWER COMMON +2.5V ROF. 24 4 6 7 8 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190

IC	TYPE	PEN	TO	PEN	TO
U2	TL074	4	+8	11	-9
U3	MC1458	8	+5	4	-9
U7, U8, U9	TL071	7	+8	6	-9
U11	CD4058	18	+9	8, 7, 8	-9
U4	CD4070	14	+8	7	-9
U10	TL074	4	+8	11	-9
U8	740814	14	+5	7	P.C.
U6	75484	1	+5	8	P.C.

BD. NO. 73613.1 BD. DATE: 1-6-92

CSR	J	9-4-96	SEE ECR 8523	CA
CSR	H	7-26-90	WAS VERS 013	B
CSR	G	10:23-98	SEE ECR 8150	MW
LL	F	11-8-94	SEE ECR 7091	MW
SLS	E	5-18-84	SITIMES 070 000	SS
RLK	D	9-6-93	SEE 000 0000	MW
JFS	C	3-25-92	SEE 000 0000	MW
JFS	B	11-18-91	SEE, WBS, TW, AVT	SES
	A	1-17-91	SEE, SWS, SEE 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 00
			DRAWN & OTHERS, SEE, WBS, SEE, SEE 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 5
SPT.	REV.	DATED	DESCRIPTION	APP.	CONTROL
DES.	J-Z	DAYTRONIC CORPORATION
SLS	K
SPT.	AP
DATE	4-26-80	REV.	9-4-96	REV. LEVEL	S3300P
NAME	LIMIT PEAK BOARD			NUMBER

DAYTRONIC

Daytronic Corporation

Dayton, OH • [phone]

www.daytronic.com