XA3033 - Measuring equipment MULTIMETRIX - Free user manual and instructions

Product type	Triple output stabilized power supply
Brand	Multimetrix
Model	XA3033
Number of outputs	3 (two variable 0-30 V / 0-3 A and one fixed 5 V / 3 A)
Voltage range (variable outputs)	0 to 30 VDC
Current range (variable outputs)	0 to 3 A
Fixed 5 V output	+5 V ± 2.5%, 3 A max
Display	LED digital, 3 digits, voltage and current simultaneously
Voltage adjustment	By potentiometer on each variable output
Current adjustment	By potentiometer on each variable output
Coupling modes	Independent, series, parallel
Supply voltage	110 V or 230 V ± 10%, 50-60 Hz
Maximum consumption	< 500 W
Stability / Ripple	< 1 mVrms (variable outputs), < 5 mVrms (fixed output)
Voltage accuracy	± 1% + 2 digits
Current accuracy	± 2% + 2 digits
Dimensions (W x H x D)	260 x 160 x 340 mm
Weight	10 kg
Safety standard	EN 61010-1 (2001), CAT II 300 V, pollution degree 2
Maintenance	Clean with a cloth slightly dampened with soapy water; do not use abrasive products or solvents
Supplied accessories	Operating manual, 2 fuses T 3.2 A / 250 V, mains cord
Warranty	Warranty against any material defect or manufacturing defect (according to general terms and conditions of sale)

Frequently Asked Questions - XA3033 MULTIMETRIX

How to use the outputs in independent mode?

Set the series/parallel switches to the released position. First set the current to maximum by turning the corresponding potentiometers fully clockwise, then set the voltage to minimum (fully counterclockwise). Power on and adjust the desired voltage. The CV (constant voltage) indicators light up.

How to limit the output current?

Turn the current potentiometer fully counterclockwise, short-circuit the output terminals, power on and set the desired current. Power off, remove the short-circuit, connect the load and power on again. The current will be limited to the programmed value.

How to connect the two variable outputs in series?

Press the series switch (7) and release the parallel switch (8). Adjust the voltage of the master output; the slave output follows automatically. The total voltage is twice the displayed value. Ensure the ground of the negative terminals is disconnected to avoid a short-circuit.

How to connect the two variable outputs in parallel?

Press both switches (7) and (8). The voltage is controlled by the master output; the total current is twice the displayed current. Connect the positive terminals together and the negative terminals together before connecting the load.

What safety precautions should be observed?

Use only the supplied power cord. Do not disconnect the protective conductor. Do not exceed 60 V peak relative to earth. Before connecting or disconnecting cords, power off the device. Place the device in a ventilated area.

How to maintain the power supply?

Disconnect the instrument, clean it with a cloth slightly dampened with soapy water, then let it dry. Never use abrasive products or solvents.

What to do if the fuse blows?

Replace the fuse with an identical model: T, 3.2 A / 250 V. The fuse holder is located at the rear of the device. Before opening, disconnect the mains supply and the measurement cords.

What do the CV and CC indicators mean?

The CV (constant voltage) indicator shows that the output regulates voltage. The CC (constant current) indicator shows that the output is in current limiting. In normal independent mode, CV is on and CC is off.

Why does the voltage of the slave output not follow the master?

Check that the current potentiometer of the slave output (2) is not fully counterclockwise. Turn it clockwise until the voltage aligns. The slave current must be set to a sufficient value.

How to proceed in case of fault or malfunction?

Take the device out of service and prevent its use. Any adjustment, maintenance or repair must be carried out by qualified personnel. Contact the manufacturer or an approved service center.

USER MANUAL XA3033 MULTIMETRIX

Triple Output Adjustable DC Power Supply

Consommation < 500 W

General Instructions

Introduction

You have just acquired a dual power supply. This instrument belongs to the MULTIMETRIX range of products. Thank you for your confidence in our products.

This instrument is compliant with safety standard NF EN 61010-1 (2001), single insulation, concerning electronic measuring instruments.

For optimal service, read this manual carefully and observe the operating precautions.

Non-compliance with the warnings and/or operating instructions might damage the unit and/or its components and might be dangerous for the user.

Safety

This instrument complies with the EN 61010-1 safety standard, class 1. It is designed for indoor use, in a level 2 pollution environment, at an altitude below 2,000 m, at a temperature between 0°C and 50°C with a relative humidity < 80 % up to 40°C.

Power supply outputs

Overvoltage category 100 V CAT I in relation to earth

Max. output voltage 30,5 V DC in normal mode

61,0 DC in series mode V

Mains power supply

Overvoltage category 300 V CAT II

Supply current 110 V or 230 V ± 10 %; 50-60 Hz

Consumption < 500 W

definition of installation categories

(cf. IEC 664-1)

CAT I : CAT I circuits are protected by devices designed to minimize transient overvoltages at a low level.

E.g.: protected electronic circuits

CAT II : CAT II circuits are domestic or similar equipment power supply circuits that can include average value transient overvoltages.

E.g.: power supply to domestic appliances and portable tools.

CAT III : CAT III circuits are circuits for power equipment power supplies which may include high transient overvoltages.

E.g.: machine or industrial apparatus power supply.

CAT IV : CAT IV circuits are circuits that can include very high transient overvoltages.

E.g.: energy inputs

Precautions

Before use

To use this power supply safely, users must comply with the customary safety rules in order to:

• protect them from the dangers of the electric current,
• to protect the power supply against incorrect use.

For your safety, only use the lead delivered with the instrument.

Before using it, always check that it is in perfect condition.

It must be connected to the mains before connecting measurement or control circuits.

General Instructions (cont'd)

	* Any break in the protective conductor, inside or outside the instrument, or disconnection of the protective earth terminal may make the instrument dangerous. Intentional breaking is prohibited.* When this instrument is supplied via an autotransformer in order to reduce the external voltage, make sure that the common terminal is connected to the neutral (earthed pole) of the supply circuit.* The plug should only be inserted into a socket equipped with an earthing contact. The safety connection must not be broken by use of an extension lead without a protective conductor.
When using the instrument	* When the required voltage and current parameter values are not known, start by using the lowest values.* Before disconnecting the connection leads of the circuit being tested, make sure that the power supply is switched off. This prevents the creation of break or closure extra-currents which may melt the fuse at high currents.* Never exceed a total output of 60 V peak in relation to the earth (common mode).* The instrument must be placed in a ventilated room. Take care not to obstruct the ventilation holes.
Symbols on the instrument	Caution : refer to the manual. Incorrect use may damage the instrument and endanger the user.Functional earth Hot surface
Instructions	* Before opening the instrument, disconnect if from all sources of electric current and from the measuring circuits; make sure that you are not charged with static electricity, which could irreparably damage the instrument's internal components.* Before opening the power supply to change the fuse, you must disconnect the leads and mains power supply cable. The fuse must be replaced by a model identical to that delivered with the instrument.*When the instrument is open, some of the internal capacitors may conserve a dangerous potential, even once the instrument has been powered down. In the event of faults or abnormal constraints, power down the instrument and do not allow anyone to use it until it has been checked.* Adjustments, maintenance or repair work on the instrument must only be carried out by qualified personnel.*A "qualified person" is someone who is familiar with the installation, the construction, the application and the dangers at hand. This person is authorised to power up and power down the installation and equipment, in compliance with safety regulations.

General Instructions (cont'd)

Safety features

The fuse protects the primary coil of the power supply transformer against mains voltage errors.

Only use fuse of following type : T, 3.2 A / 250 V.

Guarantee

This equipment is guaranteed against any material or manufacturing defects, in accordance with the general conditions of sale.

During the warranty period (3 years), the instrument can only be repaired by the manufacturer, who reserves the right to repair the instrument or to exchange all or part of it. If the equipment is returned to the manufacturer, the outgoing transport costs are borne by the customer.

The warranty is not applicable in the following cases:

1. improper use of the equipment or use of it in conjunction with incompatible equipment

2. modifications to the equipment without the explicit authorisation of the manufacturer's technical department;

3. work carried out on the instrument by a person not approved by the manufacturer;

4. adaptation for a specific application not included in the definition of the equipment or the user's manual;

5. knocks, falls or flooding.

Metrological verification

Like all measuring or testing devices, a regular check is necessary.

Return your instrument to your distributor for any work to be done within or outside the guarantee.

Cleaning

Disconnect the instrument and then clean it with a cloth slightly moistened with soapy water; leave to dry before using. Never use abrasive products or solvents.

Storage

To guarantee correct operation of the power supply, after a period of storage in extreme environmental conditions, wait for the instrument to return to normal measuring conditions (see environmental specifications). In particular, an abrupt change in the ambient temperature (cold to hot) may lead to condensation inside the instrument and cause short circuits.

Unpacking Repacking

All the equipment has been checked both mechanically and electronically before shipment.

Every precaution has been taken to ensure that you receive the instrument undamaged.

However, it is a good idea to check quickly to detect any damage that may have occurred during transport.

If there is any damage, immediately notify the transporter of the customary reservations.

If you ship this instrument on elsewhere, use preferably the original packaging and indicate the reasons for reshipment as clearly as possible in a note enclosed with the equipment.

Instrument Description

Presentation

This comprehensive power supply with digital displays is designed to meet the requirements of educational establishments, laboratories and maintenance departments.

Front panel

5 6 4 3 7 9 11 10 12 8.8.8 A 8.8.8 V 8.8.8 A 8.8.8 V CC CV CC CV CURRENT VOLTAGE INDEP CURRENT VOLTAGE INDEP SERIES PARALLEL SLAVE TRACKING MASTER GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND POWER ON OFF 21 20 19 18 17 16 8 15 14 13 23 22

Controls

"SLAVE" output (left)

1. Slave constant current indicator (CC) or 2-ways parallel state indicator
2. Slave constant current adjustment
3. Slave constant voltage indicator (CV)
4. Slave constant voltage adjustment
5. Current display
6. Voltage display
7. « + » output terminal
8. Earth terminal
9. « - » output terminal

"MASTER" output (right)

1. Current display
2. Voltage display
3. Constant current indicator (CC)
4. Constant voltage indicator (CV)
5. Voltage adjustment potentiometer
6. Current adjustment potentiometer
7. « + » output terminal
8. Earth terminal
9. « - » output terminal

Common controls

1. ON/OFF switch
2. & 8. Parallel or series output selecting switch
3. « + » output terminal
4. « - » output terminal

Functional Description

Independence use of two adjustable outputs

- Set (7) & (8) switch to spring out position.

Voltage adjustment

• Rotate the (2) & (15) potentiometers to right end stop (max. voltage).
• Rotate the (4) & (14) potentiometers to left end stop (min. voltage).
• Turn on power switch (13).
• Adjust the (4) & (14) potentiometers until output voltage reach required voltage value.
• At that time the voltage indicator lights on.
  • The voltage indicators (CV) light on.
• The current indicators (CC) light off.

Current adjustment

• Switch off the instrument (13).
• Rotate the (4) & (14) voltage potentiometers to right end stop (max. voltage).
• Rotate the (2) & (15) current potentiometers to left end stop (min. current).
• Connect the required load.
• Adjust the (2) & (15) potentiometers until output voltage reach required value.
• The output current value is displayed.
  • The current indicators (CC) light on.
• The voltage indicators (CV) light off.

Current limitation

Using the instrument in constant voltage, the current value can be limited to a required level, as follows :

1. Rotate the (2) & (15) potentiometers to the left end stop (min. current).
2. Short-circuit the « + » & « - » outputs of the power supplies.
3. Turn on the instrument.
4. Bring the current value to the desired level with the (2) & (15) adjustments.
5. Turn off the instrument
6. Disconnect the short-circuits and load the outputs.
7. Turn on the instrument again. Adjust the voltages to the required values.

The « voltage » indciators light on as long as the current value does not reach the required level.

When it is reached, the « voltage » (CV) indicators light off and the « current » (CC) indicators light on.

Functional Description

Series using the two adjustable outputs	Switch (8) is set to spring out and press in switch (7).Turn the mster voltage adjustment (14); the slave out voltage tracks strictly the master output voltage.The output voltage (16) & (21) can be up to double of independent's maximum voltage.
Before the series connecting	It must be examined if the negative terminal of both master and slave output are connected to case grounded terminal, if they are, must be disconnected, otherwise, short-circuit will be caused in the slave output when the two outputs are connected in series.
When the two outputs are in seriesExample	The voltage is controlled by master output, but current adjustment of two outputs is still independent..Attention should be paid to the position of the CC adjustment (2).Kob (2) is at the left end stop position or current of slave output excesses current-limiting protection point, at that time, the voltage of slave output will not track the voltage of master.Kob (2) should be rotated to right end stop until the two outputs are in series.
Series connection	It is ensured inside the unit by the switches (7) & (8).If there is power output, proper leads corresponding to output power should be used to short connect the negative terminal of master output with positive terminal of slave output reliably.Since it is shorted by a switch inside the unit, current will pass on the shorted switch when there is power output. This will affect the reliability of the unit.
Parallel using of the two adjustable outputs	Press in switches (7) & (8).Adjust voltage of the « master » output with the switch (14).The voltage of both outputs remains the same.The « slave » output indicator (1) lights on.
when both outputs are in parallel	The current potentiometer (2) of the « slave » output has no effect.The current potentiometer 15) of the « master » output adjusts the current. This potentiometer controls the « master » & « slave » current outputs. Those outputs are identical.The current output is twice as much as the dispayed current for each independent supply.
when connecting in parallel	Connect together the « + » output terminals of both supplies.Connect together the « - » output terminals of both supplies.Connect the load between those outputs with the appropriate cables.If the load is connected to one supply only, an imbalance of current between the 2 outputs could occur and damage the internal serial/parallel switches.

Specifications

Technical
Outputs	3
Values	Voltage ± 1 % + 2 digitsCurrent ± 2 % + 2 digits
Voltage	« Master » output 0 to 30 VDC ± 0,05 % + 5 mV« Slave » output 0 to 30 VDC ± 0,05 % + 5 mV
Current	« Master » output 0 to 3 A ± 0,5% + 5 mA« Slave » output 0 to 3 A ± 0,5% + 5 mA
Accuracy	< 1 mVrms
5V constant supply outputs
Voltage	+ 5 V ± 2,5 %
Current	3 A max.
Stability	< 5 mVrms
EMC
Immunity	EN 55024
Emission	EN 55022 – EN 61000-3-2 – EN 61000-3-3
General
Display	Digital - 3 digits - Voltage and Current simultaneous
Adjustment	« Slave » and « Master » outputs : with potentiometer
Coupling	Serial or parallel
Input voltage	110 VAC / 230 VAC ± 10 % 50 - 60 Hz
Consumption	< 500 W max.
Safety	EN 61010-1 (2001) – CAT II 300 V – Pollution 2
Dimensions	W x H x D : 260 x 160 x 340 mm
Weight	10 kg
Accessories	User' manual2 fuses T, 3.2 A, 250 VMains cord