Iso-tech IPS-3201, IPS-3202 User Manual

IPS-3201/3202 PROGRAMMABLE POWER SUPPLY

USER MANUAL

IPS-3201/3202 PROGRAMMABLE POWER SUPPLY

USER MANUAL

Programmable Power Supply

IPS-3201/3202

User Manual

RS Components Ltd
This manual contains proprietary information, which is protected by copyrights. All rights
are reserved. No part of this manual may be photocopied, reproduced or translated into
another language without prior written consent of R S Components.
The information in this manual was correct at the time of printing. Due to product
improvements, RS Components reserves the rig hts to change specificat ion, equipment, and
maintenance procedures at any time without not ice.

82IP-32020MA

CONTENTS PAGE

1. PRODUCT INTRO DUCT ION.......................................................................................1

1-1. DESCRI PTIO N............................................................................................................1

1-2. FEATUR ES..................................................................................................................2

2. TECHNICA L SP ECIFI CAT IONS................................................................................3

3. OPERATIN G PRE CAUTI ONS.....................................................................................6

3-1. UNPACK ING T HE INS TRUM ENT........................................................................6

3-2. CHECKI NG THE SUPP LY V OLTAG E..................................................................6

3-3. OPERAT ING E NVIRO NME NT...............................................................................7

4. CONTROL PANEL..........................................................................................................8

5. OPERATIO N.................................................................................................................. 12

5-1. OUTPUT VOLTAGE AND CURRENT SETTING............................................ 12

5-2. OVER VOLTAGE AND OVER CURRENT PROTECTION S ETTING.......... 13

5-3. VOLTAGE AND C URRE NT ST EP SET TING :.................................................. 14

5-4. INFORM ATION STOR ING AN D REC ALLI NG:...............................................15

5-5. INFORM ATION EDIT ING A ND COP YING :..................................................... 16

5-6. AUTO-O PERA TION............................................................................................... 17

5-7. PARALL EL OPE RATI ON M ODE........................................................................ 19

5-8. TRACKI NG OPE RATI ON MO DE........................................................................19

5-9. RS-232 INTERFACE PARAMETER SETTING..................................................20

5-10. MAXIMUM OUTPUT SETTING VALUES...................................................... 21

5-11.TEST L EADS.......................................................................................................... 21

5-12. REMOTE CONTR OL VI A THE R S-232 INTER FACE ....................................21

6. MAINTEN ANCE........................................................................................................... 22

6-1. FUSE RE PLAC EMENT.......................................................................................... 22

6-2. LINE VOL TAGE ADJ USTM ENT........................................................................ 22

6-3. CLEANI NG.............................................................................................................. 23

6-4. REPAIR AND C ALIBR ATIO N............................................................................. 23

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SAFETY TERMS AND SYMBOLS

These terms may appear in this manual or on the product:

WARNING. Warning statements identify condition or practices that could result
in injury or loss of life.

CAUTION. Caution statements identify conditions or practices that could result
in damage to this product or other property.

WARNING: This equipment is not for measurements performed for CAT II, III
and IV.

Measurement category I is for measurements performed on circuits not directly connected to

MAINS.
Measurement category II is for measurements performed on circuits directly connected to the low
voltage installation.

Measurement category III is for measurements performed in the building installation.
Measurement category IV is for measurements performed at the source of the low-voltage
installation.

The following symbols may appear in this ma nual or on the product:

FOR UNITED KINGDOM ONLY

NOTE: This lead/appliance must only be wired by competent persons
WARNING: THIS APPLIANCE MUST BE EARTHED
IMPORTANT: The wires in this lead are colour-coded in accordance with the

following code:

Green/ Yellow: Earth
Blue: Neutral
Brown: Live (Phase)

As the colours of the wires in main leads may not correspond with the colour
markings identified in your plug/appliance, proceed as follows:

The wire which is coloured Green & Yellow must be connected to the Earth terminal

marked with the letter E or by the earth symbol
Yellow.

The wire which is coloured Blue must be connected to the terminal which is marked
with the letter N or coloured Blue or Black.

or coloured Green or Green &

DANGER ATTENTION Protective Earth (ground) Frame or Chassis

High Voltage refer to Manual Conductor Terminal Terminal

Terminal

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The wire which is coloured Brown must be connected to the terminal marked with
the letter L or P or coloured Brown or Red.

If in doubt, consult the instructions provided with the equipment or contact the
supplier.

This cable/appliance should be protected by a suitably rated and approved HBC
mains fuse: refer to the rating information on the equipment and/or user instructions
for details. As a guide, cable of 0.75mm

2

should be protected by a 3A or 5A fuse.
Larger conductors would normally require 13A types, depending on the connection
method used.

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Any moulded mains connector that requires removal or replacement must be
destroyed by removal of any fuse & fuse carrier and disposed of immediately, as a
plug with bared wires is hazardous if a engaged in live socket. Any re-wiring must be
carried out in accordance with the information detailed on this label and in
accordance with local regulations. If further information is required, contact the
supplier, the address is given at the end of these instructions.

IPS-3201/3202 PROGRAMMABLE POWER SUPPLY

USER MANUAL

1. PRODUCT INTRODUCTION

1-1. Description

The IPS series programmable power supplies are controlled b y a
Microprocessor Unit (MPU), which can be connected via an in-built
RS-232 communication interface to a personal computer. This all ows
remote operation for automatic testing and control as may be required
by the user.

The voltage and current are controlled by a 12 bit D/A converter
with high resolution and accuracy. The digital control of the system
allows simple and precise entry of information, together with clear and
unambiguous monitoring of the instrument parameters.

The over-voltage protection (OVP) and over-current protection
(OCP) is set through software and detected by hardware to provide
continuous protection for the instrument, external circuits and the user.

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1-2. Features

1) Digital control and programmable interface with high resolution

and precision.

2) The 192×128 point LCD display can show multiple settings and

measurement results simultaneously. The display format may be
changed to suit individual requirements.

3) Intuitive interface window display allows convenient operation

of the instrument.

4) High stability and low drift.

5) Over voltage, over current and over temperature protection.

6) Intelligent fan speed contr ol

7) Warning signals via built-in buzzer.

8) 1/2 rack width for convenient rack installation.

9) Rotary knob for fine and coarse adjustment of settings.

10) 100 groups of memories for storing settings.

11) Parallel and series operation modes.

12) Programmable internal timer for output ramp-up, dwell &

ramp-down operation.

2. TECHNICAL SPECIFICATIONS

SPECIFICATIONS IPS-3201 IPS-3202

Voltage 0-32V×3 0-32V×2, 0-6V×1

Output

Load effect

Source effect

Setting resolution

Program accuracy
(25±5℃)

Ripple & noise
(20Hz~20MHz)

coefficient
(0~40℃)

resolution
Response time;
Voltage up
Voltage down

Current 0-1A×3 0-2A×2, 0-5A×1

OVP 0-33V×3 0-33V×2, 0-7V×1

≦3mV(≦5mV rating current>3.0A), test

Voltage

Current

Voltage

Current
Voltage 10mV

Current 1mA(2mA rating current>3.0A)

OVP 10mV

Voltage ≦0.05%+20mV
Current ≦0.1%+5mA(+10mA rating current>3.0A)

OVP ≦0.05%+20mV

Voltage
Current ≦3mArms(≦5mArms rating current>3.0A)

Voltage ≦100ppm+3mV Temperature
Current ≦100ppm+3mA
Voltage 10mV Readback

Current 1mA(2mA rating current >3.0A)

10%~90% ≦100ms
90%~10% ≦100ms (≧10 % rating load)

points are at the +output terminal and –output
terminal point.
≦3mA(≦5mA rating current>3.0A), test
points are at the +output terminal and –output
terminal point.
≦3mV, test points are at the +output terminal
and –output terminal point.
≦3mA, test points are at the +output terminal
and –output terminal point.

Ripple≦1mVrms/3mVp-p

Noise≦2mVrms/30mVp-p

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Readback
temperature
Coefficient

Drift

Tracking
operation

Parallel
operation

Memory

Timer

Interface
Power source
Power

consumption

specifications

Voltage ≦100ppm+10mV
Current ≦150ppm+10mA

Voltage ≦100ppm+10mV
Current ≦150ppm+10mA

Tracking error ≦0.1%+20mV

Series

(Load effect)

Program

accuracy

Voltage≦3mV(≦5mV rating current>3.0A)

Load effect

Source effect

Store/Recall points 0~99

Setting time 0.1sec~99min59sec(max×100)

Resolution 0.1sec

Function For output working loop (Auto-step r unning)

100, 120, 220V±10%, 230V +10%/-6% 50/60Hz. AC

Dimensions 230(W)×140(H)×380(D) mm. Mechanical

Weights 10 kg

Current≦6mA, test point s are at the +output
terminal and –output terminal point.
Voltage≦3mV,Current≦6mA, test points are
at the +output terminal and –output terminal
point.

RS232, GPIB interface option

Voltage≦0.05%+20mV

IPS-3201: 210W
IPS-3202: 360W

≦20mV

Current≦0.1%+10 mA

OVP≦0.05%+20mV

SPECIFICATIONS IPS-3201 IPS-3202

Indoor use only

Altitude: up to 2000 metres

Ambient temperature:
Operating
environment

Storage temperature
& humidity

Supplied accessories

To satisfy specifications: 10℃ to 35℃ ( 50° F to 95°F )

Maximum operating range: 0℃ to 40℃( 32°F to 104°F )

Relative humidity: 85% RH(max.), non condensing

Installation Category : II

Pollution degree: 2

-10° to 70℃, 70%RH (maximum)

Power cable................……….. × 1

Instruction manual…………….. × 1

Programming manual............... × 1

Test leads…..….………………. × 3

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3. OPERATING PRECAUTIONS

3-1. Unpacking the instrument

The product has been fully inspected and tested before shipment.
On receiving the instrument, please unpack and inspect it for
damage caused during transportation. If any sign of damage is
found, notify the bearer and/or the supplier immediately.

3-2. Checking the supply voltage

The IPS power supplies can be connected to any supply voltages
shown in the table below. Before connecting the power plug to an
AC outlet, ensure the voltage selector on the rear panel is set to the
correct position corresponding to the supply voltage (Refer to
section 6-2). Damage may be caused to the instrument if connected
to an incorrect supply voltag e.

WARNING. To avoid electrical shock the power cord
protective grounding conductor must be connected to
ground.

WARNING. To avoid personal injury, disconnect the power
cord before removing the fuse holder.

When line voltages are changed, replace the fuses as shown below:

3-3. Operating environment

The operating ambient temperature range of this instrument is from 0° to
40°C (32° to 104°F). Do not operate the instrument outside this
temperature range, otherwi se damage may be caused to the instrument.
Do not use the instrument where strong ma gnetic or electric fields exist, as
it may disturb the operation of the instru ment.

Use the instrument in an area free from dust and direct exposure to
sunlight.

WARNING. Do not use the instrument in wet areas or where
water or other liquids may fall on or enter the instrument, as
this may cause a shock hazard or damage t he instrument.

WARNING. If this equipment is used in a manner not specified
in these instructions, the protection afforded by the equipment
may be impaired.

Model

IPS-3201

IPS-3202

Line

voltage

100V
120V

Input

Range

90-110V

108-132V

Fuse

T3A

250V

T5A

250V

Note: Fuse type is 5 × 20mm HBC ceramic.

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Line

voltage

220V
230V

Input

Range

198-242V
216-253V

Fuse

T1.6A

250V

T2.5A

250V

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4. CONTROL PANEL

Figure 4-2 Rear Panel

Figure 4-1 Front Panel

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1. Power switch Turns the AC power on to the instrument..

2. Display Indicates the setting of voltage and current values,

output voltage and current value and the
instrument and output status.

3. +Output terminal Positive output terminal.

4. -Output terminal Negative output terminal.

5. GND terminal Ground terminal connected to instrument chassis.

6. Rotary encoder Variable control knob.

7. V set (CH1) Output voltage setting.

Switch to channel 1 by pressing [SHIFT][CH1] to
enable setting of group parameters.

8. I Set (CH2) Output current setting.

Switch to channel 2 by pressing [SHIFT][CH2] to
enable setting of group parameters.

9. OVP Set (CH3) Over voltage protection value setting.

Switch to channel 3 by pressing [SHIFT][CH3] to
enable setting of group parameters.

10. F/C (STEP) Allows coarse or fine adju stment selection for the

rotary control knob. Press [SHIFT][STEP] to
select.

11. Recall△ (Store) Recall the next set of stored information.

Press [SHIFT][STORE] to store and edit
information.

12. Recall▽(Recall) Recall the previous set of stored information.

Recall the highlighted stored information or set
the range of information to recall automatically by
pressing [SHIFT][RECALL].

13. AUTO

(PARA/INDEP)

Turn on/off automatic operation function by
setting the AUTO on or off.
Operate the instrument in parallel mode by

ressing [SHIFT][PARA]. Return to independent

mode by pressing the keys again.

14. Delay

(TRACK/INDEPT)

Set the voltage and current output delay time in
automatic operation mode.
Operate the instrument in series mode by

ressing [SHIFT][TRACK]. Return to

independent mode by pressing the keys again.

15. OCP

(OVP RESET)

Turn the over current protection on or off.
Reset the over voltage protection mode by
pressing [SHIFT][OVP RESET].

16. SHIFT Second function selection.

17. Local Clear the remote control mode from RS232 and

enable front panel control.

18. Contrast Press [SHIFT][CONTRAST] to adjust the

contrast of the display.

19. Press [SHIFT][ ] to turn the buzzer on or off.

20. W Press [SHIFT][W ] to change the character s ize.

21. I△ Press [SHIFT], then press I△ to increment on e

step of the output current.

I▽ Press [SHIFT], then press I▽ to decrement one

step of output current.

V△ Press [SHIFT], then press V△ to increment one

step of output voltage.

V▽ Press [SHIFT], then press V▽ to decrement one

step of output voltage.

22. Output Turn on or off output by pressing the button.

23. 0~9, “˙”, ENTER Value input.

24. AC power socket AC mains power input connector.

25. AC select switch Select mains supply voltage to 100V, 120V,

220V or 230V, 50/60Hz AC.

26. Cooling fan Internal cooling fan air outlet.

27. Interface connector RS-232C serial communication interface

connector .

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5. OPERATION

5-1. Output voltage and current setting

Press [SHIFT][CHx] to select th e required ou tput channel. The
cursor will be set to CHx (x=1, 2 or 3). Refer to the drawing below:

--Output voltage setting:

Method 1: Press [V SET] and use the numeric keypad to enter the

voltage value then pr ess [ENTER].

Method 2: Press [V SET] and use the rotary knob to select the

required voltage value and the output voltage setting
will be changed. Press [ENTER] to terminate the
voltage setting. Using this method, the output voltage
will change immediately following the input value
through the rotary knob.

Example: Set voltage at 32.00V.

Press [V SET][3][2][.][0][0][ENTER]

--Output current setting:

Method 1: Set output current by pressing [I SET] and using

numeric keypad to enter the requ ired current value
and press [ENTER].

Method 2: Press [I SET] and use the rotary knob to select the

required current value and th e output current setting
will be changed. Press [ENTER] to terminate the
current setting. Using this method, the output current
will be changed immediately following the input value
through the rotary knob.

Example: Set current at 1.000A.

Press [I SET][1][.][0][0][0][ENTER]
When the load current through output terminal exceeds
the setting value, the instrument then operates in
constant current mode. If the load current remains
below the set value, the instrument operates in constant
voltage mode.

5-2. Over voltage and over current protection setting

Press [SHIFT][CHx] to select the required output channel. The
cursor is set to CHx (x=1, 2 or 3).

--Over voltage protection setting:

Method 1: Set OVP voltage level by pressing [OVP SET] and use

numeric keypad to enter th e required voltage value,
then press [ENTER].

Method 2: Press [OVP SET], use the rotary knob to select the

required voltage value and the OVP voltage setting
will be changed. Press [ENTER] to terminate the OVP
voltage setting. Using this method, the OVP setting
will change immediately following the input value
through the rotary knob.

Example: Set OVP voltage at 33.00V.

Press [OVP SET][3][3][.][0][0][ENTER]

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--OVP status clear:

When the output voltage exceeds the set 33.00V OVP value, the
output will turn off. The instrument will enter OVP mode and the
display will show “Over voltage protection”. Press
[SHIFT][OVP RESET] to clear the OVP state and return to
normal operation.

--Over current protection setting:

The OCP of each channel may be set individually by pressing
[OCP]. If OCP is on, when the output current for the channel
equals or exceeds the set current value, the output of the
instrument will turn off. The instrument will enter OCP mode and
the display will show “Over current protection”. Press [OCP] to
clear the OCP state and return to normal operation.

5-3. Voltage and current step setting:

Press [SHIFT][STEP] to enter into the item selection menu. Use
the rotary knob to set the cursor to the item which is to be modified.
Use the keypad to enter the required value and press [ENTER].
Store the setting by using the knob to move the cursor to [SAVE],
then press [ENTER] again to co mplete the setting and storing . To
cancel the setting, move the cursor to [EXIT ] and press [ENTER]
to terminate the setting without storing.

Example：Set the step voltage of Channe l 1 at 1.00V and the step

current at 0.10A.
Press [SHIFT][STEP], select CH1 voltage and enter
[1][.][0][0][ENTER]. Select CH1 Current and enter
[0][.][1][0][0][ENTER]. Finally, use the knob to move the cursor
to [SAVE] and press [ENTER] to complete the setting and storing.
Note: The setting of the step voltage and step current of CH1 CH2

CH3 can be set using the same display window.

5-4. Information storing and recalling:

--Information storing:

Press [SHIFT][STORE] to enter item selection menu. Use the
rotary knob to set the cursor to [STORE] and press [ENTER]. The
memory store menu will appear. Use the numer ic k eyp ad to en ter
the store address and press [ENTER] to complete the store.

Example：The current se tting store address of the instrument is

“00”.
Press [SHIFT][STORE] to enter the item selection
menu. Use the rotary knob to set the cursor to [STORE],
then press [ENTER] and input [0][0][ENTER] to
complete the store.

--Information recall:

Press [SHIFT][RECALL] to enter the item selection menu. Use
the rotary knob to set the cursor to [Recall Memory] and press
[ENTER] to display the memory recall menu. Enter the recall
address by using the numeric keypad and press [ENTER] to
complete the recall.

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Example: Recall the store address “00” to the current status of the

instrument.
Press [SHIFT][RECALL] to enter the item selection
menu and use the knob to set the cursor to recall memory.
Press [ENTER] and input [0][0][ENTER] to complete the
recall setting.

5-5. Information editing and copying:

--Information Editing (Edit):

Press [SHIFT][STORE] to enter the item selection menu and use
the rotary knob to set the cursor to [Edit]. Press [ENTER] to
display the memory editing menu, enter the address to edit using
the numeric keypad and press [ENTER] to display the edit
selection menu. Use the rotary knob to set the cursor to the item to
edit, enter the new value or on/off status by using the number keys
and press [ENTER] to confirm the change. After the modifica tion
is completed, set the cursor to [End] using the rotary knob and
press [ENTER] to complete the setting. If required, continue with
other setting changes by returning to the previous menu and
repeating above procedures. When modification is complete, use
the knob to set the cursor to [SAVE] and press [ENTER] to
complete the edit session. To cancel changes, set the cursor to
[Exit] and press [ENTER] to terminate the session without storing
the changes.

--Information copying:

Press [SHIFT][STORE] to enter it em se lect ion menu, selec t cop y
and press [ENTER] to enter the copy setting menu. Select the
modified item, enter copy address and press [ENTER]. After
modification, select [Save] and pr ess [ENTER] to complete the
setting. To cancel changes, set the cursor to [Exit] and press
[ENTER] to terminate the setting without storing.

Note: Do not repeat the address of source and target input. The

value of the end setting must be larger than of the start
setting.

5-6. Auto-operation.

--Delay time setting:

Press [DELAY] to enter item selection menu and use the rotary
knob to set cursor to the required setting item. Enter the required
time using the numeric keypad and press [ENTER]. Finally use the
rotary knob to set the cursor to [End] and press [ENTER] to
complete the setting. The delay time setting must also be stored in
the specific location of the memory address according to the
procedure of 5-4 “Information storing”. Note; when the store
procedure is in operation, all the other settings of the instrument

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will be also stor ed in the sa me memor y address .
To cancel changes, set the cursor to [Exit] by using the rotary knob
and press [ENTER] to terminate the setting without storing.

--Auto-operation

Press [SHIFT][RECALL] to enter item selection menu, use the
rotary knob to set the cursor to recall range and press [ENTER] to
display the auto operation menu. Set the cursor to the item to be
modified by using the rotary knob. Use the numeric keypad to
input the auto operation setting value and press [ENTER]. After
modification, use the knob to set the cursor to [Save], and press
[ENTER] to complete the se tting. To cancel the changes, set th e
cursor to [Exit] by using the rotary knob and press [ENTER] to
terminate the setting without storing.

Note: When the auto o peration value i s set to “00”, the opera tion
will continually cycle until cancelled.

5-7. Parallel operation mode

Press [SHIFT][PARA] to enter the parallel operation mode. In this
mode, the output voltage and current are controlled by channel 2.
The selectable range of output voltage is the same as channel 2
under normal independent operation, but the settable range of
output current is twice that of channel 2 under normal independent
operation.

Example:

(1) Channel 1 : Voltage=10 V, Current= 1 A.
(2) Channel 2 : Voltage=20 V, Current= 2 A.
(3) Press [SHIFT][PARA] to enter parallel mode.
(4) Output voltage=20V, output current=4A.

5-8. Tracking operation mode

Press [SHIFT][TRACK] to enter tr acking opera tion mode. In this
mode, output voltage and current are controlled by channel 2. The
selectable range of output voltage is same as channel 2 under
normal independent operation, but the output currents can have
different values.
Example：

(1) Channel 1 : Voltage =10V, Curren t= 2A.
(2) Channel 2 : Voltage =20V, Curren t= 2A.
(3) Press [SHIFT][TRA CK] to enter tra cking mode.
(4) Output voltage=40V, output current=2A

WARNING. A voltage of more than 60V DC presents a
lethal shock hazard. Take extreme care when
connecting power supplies in series to achieve voltages
greater than 60VDC total, or 60VDC between any
connection and earth ground.

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5-9. RS-232 Interface parameter setting

Press [SHIFT][RS-232] to enter item selection menu. Use the
rotary knob to set the cursor to interface and press [ENTER] to
display the interface selection menu. Set the cursor to the item to
be modified by using the rotary knob and press [ENTER]. Set the
cursor to address or Baud Rate setting as required. To modify the
address, use the numeric keypad to enter the address value and
press [ENTER]. To modify the Baud Rate, first press [ENTER],
then use the rotary knob to set the cursor to the setting value to be
modified and press [ENTER]. Finally set the cursor to [Save] by
using the rotary knob and press [ENTER] to complete changes. To
cancel the changes, set the cursor to [Exit] by using the rotary knob
and press [ENTER] to terminate the setting without storing.

Example:

Set the RS-232 Baud Rate to 9600.

Press [SHIFT][RS-232] to enter item selection menu. Use the
rotary knob to set the cursor to interface and press [ENTER] to
display the interface selection menu. Set the cursor to RS-232 by
using the rotary knob and press [ENTER]. Use the knob to set the
cursor to [Baud Rate] and press [ENTER]. Set the cursor to
[9600] and press [ENTER]. Finally set the cursor to [Save] and
press [ENTER] to complete the setting and storing.

5-10. Maximum output setting values

MODEL

ITEM

IPS-3201 IPS-3202

CH1 CH2 CH3 CH1 CH2 CH3

Output voltage 33V 33V 33V 33V 33V 7V
Output current 1.1A 1.1A 1.1A 2.1A 2.1A 5.2A
Over-voltage 34V 34V 34V 34V 34V 8V
Step voltage 10V 10V 10V 10V 10V 1V
Step current 0.5A 0.5A 0.5A 1A 1A 2.5A
Delay time 99’59” 99’59”
Memory groups 100 100

5-11.Test leads

Test leads supplied are suitable for the currents and channels as
shown in the following table:

MODEL

ITEM

CH1 CH2 CH3 CH1 CH2 CH3

(3A)

Test

Lead

IPS-3201 IPS-3202

(3A)

Test

Lead

(3A)

Test

Lead

(3A)

Test

Lead

(3A)

Test

Lead

(4A-10A)
Test Lead

Note: When using IPS-3202 in parallel output mode, use the

4A-10A test lead.

5-12. Remote control via the RS-232 interface

The IPS-series programmable power supplies can be remotely
controlled via the RS-232 interface. Refer to the IPS-series
Programming Manual for details of command strings and control

 20 

options available.

 21 

IPS-3201/3202 PROGRAMMABLE POWER SUPPLY

USER MANUAL

IPS-3201/3202 PROGRAMMABLE POWER SUPPLY

USER MANUAL

6. MAINTENANCE

6-1. Fuse replacement

WARNING. Disconnect power cord before replacing fuse.
For continued fire protection, replace the fuse only with
the specified type and rating.

If the fuse blows, the display will not light and the power supply
will not operate. During normal use, the fuse will not fail unless a
fault has developed in the ins trument. Replace the fuse only with
one of the correct rating and type (refer to 3-2). The fuse is located
on the rear panel (see Fig.4-2).

6-2. Line voltage adjustment

The primary winding of the power transformer is tapped to permit
operation from 100, 120, 220, or 230VAC, 50/60 Hz supply voltage.
Conversion from one line voltage to another is achieved by
changing the AC voltage selectors on the rear panel.
The rear panel identifies the line voltage to which the unit was
factory set. To convert to a different line voltage, proceed as
follows:

(1) Ensure the AC power cord is unplugged.
(2) Use a small flat-blade screwdriver to change the AC selector

switches to the desired supply voltage position.

(3) A change in line voltage may also require a corresponding

change of fuse value. Fit the corre ct fuse rating as ind icated on
the rear panel.

(4) Connect the AC power cord, turn the instrument on and check

for correct operation.

6-3. Cleaning

To clean the power supply, use a soft cloth dampened in a solution
of mild detergent and water. Do not spray cleaner directly onto the
instrument, since it may leak into the cabinet and cause damage. Do
not use chemicals containing benzine, benzene, toluene, xylene,
acetone, or similar solvents. Do not use abrasive cleaners on any
portion of the instrument.

6-4. Repair and calibration

Servicing and repairs should only be undertaken by competent
persons using correct components, equipment and procedures.
To maintain accurac y, the instru ment should be calibrated yearly.
Contact the supplier or RS Components for details of repairs and
calibration services. The address is given at the end of these
instructions.

 22 

 23 

IPS-3201/3202 PROGRAMMABLE POWER SUPPLY

USER MANUAL

United Kingdom

RS Components UK
PO Box 99, Corby
Northants NN17 9RS
Tel [phone]
Fax [phone]

Italy

RS Components S.p.A.
Via De Vizzi 93/95
20092 Cinisello Balsamo,
Milano

Tel+39 2/66,058.1
Fax+39 2/66,058.051

France

Radiospares Composants
Rur Norman King, BP 453
60031 Beauvais Cedex
Tel [phone]
Fax [phone]

Germany

RS Components GmbH
Hessenring 13b
64545 Morfelden-Walldrof
Tel [phone]
Fax [phone]

Spain

Amidata S.A.
Avenida de Europa, 19,
28224 - Pozuelo de Alarcón –
Madrid
Teléfono 902 100 711
Fax [phone]

 24 