10A35 - Electronic board Daytronic - Free user manual and instructions

Product Type	Signal Conditioning Module
Brand	Daytronic
Model	10A35
Dimensions (H x W x D)	2.0 x 5.0 x 6.0 inches (approx.)
Weight	1.5 lbs (approx.)
Power Supply	115/230 VAC, 50/60 Hz, 10 W
Input Channels	1 Channel
Input Signal Type	Strain Gage, Load Cell, Pressure Transducer
Excitation Voltage	10 VDC (adjustable)
Output Signal	±10 VDC, 4-20 mA
Bandwidth	DC to 10 kHz
Linearity	±0.01% of full scale
Zero and Span Adjustment	Multiturn potentiometers
Filter Options	Low-pass filter (selectable cutoff)
Operating Temperature	0°C to 50°C
Storage Temperature	-20°C to 70°C
Humidity	0-95% non-condensing
Mounting	Panel mount or rack mount (optional adapter)
Safety	CE compliant, overvoltage protection
Maintenance	Periodic calibration check; clean with dry cloth
Spare Parts	Replacement excitation board, output connector

Frequently Asked Questions - 10A35 Daytronic

What is the Daytronic 10A35 used for?

The Daytronic 10A35 is a signal conditioning module designed to interface with strain gages, load cells, and pressure transducers. It provides excitation voltage, amplification, and filtering to produce a standard analog output (e.g., ±10V or 4-20mA).

How do I connect a load cell to the 10A35?

Connect the load cell's excitation wires (+Exc, -Exc) to the module's excitation terminals, and the signal wires (+Sig, -Sig) to the input terminals. Ensure proper shielding and grounding as per the manual.

What output options are available?

The 10A35 offers both voltage output (e.g., ±10 VDC) and current output (4-20 mA). The output can be selected via internal jumpers or DIP switches.

How do I calibrate the 10A35?

Calibration is performed using the zero and span potentiometers. Apply a known input (e.g., shunt calibration) and adjust until the output matches the expected value. Use a precision multimeter for accuracy.

Can the 10A35 be used with a 4-20 mA transmitter?

Yes, the 10A35 can accept a 4-20 mA input if equipped with the optional current input module. Check the product marking or manual for compatibility.

What is the power requirement for the 10A35?

The module typically operates on 115/230 VAC at 50/60 Hz. Verify the voltage setting on the unit before connecting to avoid damage.

How do I select the filter cutoff frequency?

The low-pass filter cutoff frequency is set via DIP switches or dip switches on the circuit board. Common options include 10 Hz, 100 Hz, and 1 kHz. Refer to the manual for proper configuration.

Is the 10A35 suitable for outdoor use?

No, the 10A35 is designed for indoor use only. It should be housed in a dry, temperature-controlled environment away from moisture and extreme temperatures.

Where can I get a replacement manual?

The original manual can be downloaded for free from notice-facile.com or the Daytronic support website. Search for 'Daytronic 10A35 manual' in PDF format.

What is the typical response time of the 10A35?

The response time depends on the filter setting. With no filter, the bandwidth is DC to 10 kHz, giving a rise time of about 35 µs. With a 10 Hz filter, response is slower (approx. 35 ms).

USER MANUAL 10A35 Daytronic

This single-channel, phase-encoded conditioner may be used with incremental encoder sensors whose outputs are quadratured to indicate “travel” and “direction of travel,” for measurement of relative linear or angular displacements over a very wide range of distances and precisions.

The 10A35 generates a count per 90° phase shift, with a maximum allowable count of ±32700 and a speed limitation of 50 kHz, maximum. To accommodate the largest number of transducers, this count may be predivided by any integer from 1 to 256, as explained in Section 3.a. The 10A35 allows run-time “zero indexing” (resetting) and restarting of a channel’s count reading by the operator or host computer. There are also input provisions for a user-supplied auxiliary external power supply from 9 to 15 V-DC, which would allow you to keep the count “alive” during system power shut-down.

NOTE: A System 10 data channel derived from a Model 10A35 always takes a channel "type" code of CA, and does not require calibration.

ADDITIONAL 10A35 SPECIFICATIONS

Input Signals: ZERO INDEX (RESET), PHASE 1 (SINE), and PHASE 2 (COSINE); each input is available as a "TTL INPUT" or a "LOW-LEVEL INPUT"

Excitation: Nominal 5 V-DC; 50 mA maximum

Accuracy: Based on transducer, ± 1 digit

Auxiliary Power Supply: 9 to 15 V-DC

Auxiliary Outputs to Mainframe Wire-Wrap Pins: None

2 TRANSDUCER CONNECTIONS

The Model 10A35's I/O CONNECTOR mates with Daytronic CONDITIONER CONNECTOR No. 60322, shown in Fig. 1.5 (in Manual Section 1.E.1). Standard cable connections—including connection of an optional "keep-alive" power supply—are given in Fig. 1, below. Table 1 gives standard pin assignments for the I/O Connector.

The 10A35 takes three input signals: ZERO INDEX (RESET), PHASE 1 (SINE), and PHASE 2 (COSINE). Each input is available as a "TTL INPUT" or a "LOW-LEVEL INPUT." With internal pull-up less than 1 LSTTL load, TTL INPUTS (Pins 3, C, and 5) are for use with transducers with high output levels greater than 2.4 V-DC. With 15-kΩ impedance, LOW-LEVEL INPUTS (Pins 4, D, and E) are 200 mV minimum and 9 V maximum without damage, and are for use with transducers with high output levels of 200 mV-DC to 2.4 V-DC. Low transducer output is less than 0.8 V-DC for TTL, and less than 50 mV for LOW-LEVEL.

An excitation of +5 V-DC is provided by the 10A35, as shown in Fig. 1. If a higher excitation level is required, the user must provide his or her own external supply, in which case the 10A35's EXCITATION OUTPUT (Pin1) should NOT be connected to the sensor.

The 10A35 has input provisions for a user-supplied external power supply from 9 to 15 V-DC. This external ("Auxiliary") supply would allow you to keep the count "alive" during system power shut-down. The optional "keep-alive" supply should be connected to Pins A and 2, as shown in the figure.

ALSO NOTE: When Pin 5 (ZERO INDEX TTL INPUT) is not used, it must be tied to COMMON (Pin 2).

Table 1 Model 10A35 Pin Assignments

I/O Connector ConditionerPin LineNumber Function
1 EXCITATION OUTPUT (+5 V-DC)A AUXILIARY POWER SUPPLY INPUT
2	C	O
B Not Committed
3	S	INE TTL INPUT
C COSINE TTL INPUT
4 SINE LOW-LEVEL INPUT
D COSINE LOW-LEVEL INPUT
5	ZERO INDEX TTL INPUT
E ZERO INDEX LOW-LEVEL INPUT
6-10	Not Committed
F-L Not Committed

Fig. 1 Model 10A35 Transducer Cabling

graph TD
    A["9 - 15 V-DC Auxiliary Power Supply"] --> B["EXCITATION (+5 V)"]
    B --> C["COSINE"]
    B --> D["SINE"]
    B --> E["ZERO INDEX"]
    B --> F["COMMON"]
    G["CONDITIONER CONNECTOR (No. 60322)"] --> H["See Note on Pin 5"]
    H --> I["A 1"]
    H --> J["B 2"]
    H --> K["C 3"]
    H --> L["D 4"]
    H --> M["E 5"]
    H --> N["F 6"]
    H --> O["H 7"]
    H --> P["J 8"]
    H --> Q["K 9"]
    H --> R["L 10"]
    S["SHIELD"] --> T["Connector pins shown as viewed from rear (cable) side of connector"]
    U["Ground Lug"] --> V["Common"]
    W["SINETTL"] --> X["SINE TIL"]
    W --> Y["SINE LOW-LEVEL"]

SETUP AND/OR OPERATING CONSIDERATIONS

For initial configuration of the ANALOG INPUT CHANNEL dedicated to a specific Model 10A35 card when used in System 10, see the general remarks on System 10 "real-channel" configuration in Manual Section 1.G.1 and elsewhere in the System 10 Guidebook. A 10A35 channel will always take a "type" code of CA.

COUNT PREDIVISION

To predivide the count represented by a 10A35-based Channel No. "x" by any integer from 1 through 256, you should apply the following RANGE (RNG) command:

$$ \mathrm{RNG} \times = 0 0 \mathrm{h} [ \mathrm{CR} ] $$

The term to the right of the equals sign consists of two zeros, followed by a two-character hexadecimal number ("h") from 00 through FF. The decimal equivalent of the hexadecimal number "h" is to be one less than the value of the integral divisor by which the count is to be predivided. Note that the system EEPROM SWITCH does NOT need to be ON for the above RNG command to work.

Thus, for example, a “full count” of ±32700 would call for a hexadecimal value of “00” for “h,” which will enter a divisor of (decimal) “1.” A divisor of, say, “100” would yield a full count of ±327, and would be entered by a value for “h” of hexadecimal “63” (equivalent to decimal “99”). See also the example under “Returning the 10A35 to 'RUN MODE'," below.

IMPORTANT: Unless an external power supply has been connected, you must use the RANGE (RNG) command following every system powerup, to reset the 10A35 and to return it to "RUN MODE," as explained in the following sections.

ZERO-INDEXING (RESETTING) THE 10A35

You will use the following form of the RANGE (RNG) command to "zero-index" a 10A35-based Channel No. "x" (that is, to reset its count to zero):

$$ R N G x = 8 0 h [ C R ] $$

Here, the term to the right of the equals sign consists of the numbers "8" and "0," followed by the desired divisor code "h" (explained above). Again, the system EEPROM SWITCH does NOT need to be ON for this command to work.

RETURNING THE 10A35 TO "RUN MODE"

The effect of the RNG x = 80h [CR] command (above) is to place the 10A35 in "RESET MODE." IT WILL REMAIN IN RESET MODE UNTIL APPLICATION OF A RANGE (RNG) COMMAND OF THE FORM

$$ R N G x = 0 0 h [ C R ] $$

Suppose, for example, that your Model 10A35 uses Channel No. 101, and that you have set it for a full count of ±3270 by a command of

$$ R N G 1 0 1 = 0 0 0 9 [ C R ] $$

(here, since your desired count divisor is "10," you will enter for "h" the hexadecimal equivalent of "10 minus 1," or "9"). To zero-index the 10A35 at any subsequent time, you need only command

RNG 101 = 8009 [CR]

To then restart the 10A35's count (from zero), you would again command

RNG 101 = 0009 [CR]