Scientific PSD3203 User manual

User Manual
Dual Power Supply
PSD3203

Scientific Mes-Technik Pvt. Ltd.,
B-14 Industrial Estate, Pologround,
Indore 452015(India)
Tel : [phone]/33
Fax : [phone],561641
Email : [email protected]
Copyright © Scientific All rights reserved.
This instrument contains proprietary information, no part of this manual may
be photocopied, reproduced or translated without any prior written consent.
Information in this manual supercede all corresponding previous released
material.
Scientific continues to improve products and reserves rights to amend part
or all of the specifications, procedures, equipment at any time without
notice.
Rev 1.3 / 0514
2
User Manual PSD3203

Dual Power Supply
PSD3203
Table of Contents
1. Introduction ........…………………….………..….....................4
2. Technical Specifications .............….……...…....................... 5
3. Front Panel ontrols………..................
4. Operating Instructions…............…………………................... 8
General Information…..…………………….........................8
Safety….........……………………...…………..................... 8
Operating Conditions …...…………………….................... 8
First Time Operation…..………………………....................9
Operation ….......…………………….................................. 9
6. Maintenance ………………………………..….…................... 12
Power Line Fuse Replacement ……………...................... 12
7. Dispatch Procedure for Service……..………… ..... 13
8. Warranty Conditions....……………..........…...….................... 14
9. List of Service Centers....……………...................................
C .................................6
...................
..16
3
User Manual PSD3203

Floating DC supply voltages
Constant voltage and constant current operation
Digital display for voltage and current
Adjustable current limiter
Protection against overload and short circuit
Dual Power Supply
PSD3203
<
<
<
<
<
<
2 x DC 0 – 30 V, 0 – 3 A
PSD3203 current
(CC) and constant voltage (CV),
.
PSD3203
The 30 V , 3 A Dual Power supply is designed as a constant
source for laboratories, industries and field
testing applications, featuring low power loss, compact and light weight. It
provides two isolated and floated, DC output voltages and is ideally suitable for
complex analog and digital testing.
The DC output can be continuously adjusted from 0 to 30 V with coarse and fine
controls. Current limit is also adjustable up to 3 A. Any over loading for adjusted
current limit is indicated by "CC" LED When the maximum setting is crossed or the
overheating has occurred, the LED will lit.
A 3 digit display for voltage and current switchable for the power supply A & B, is
used to read the instantaneous values. These two parameters are switchable for
indicating either voltage or current. In addition to low residual ripple and noise as
well as excellent line and load regulation, the is provided with all
protective circuits to ensure trouble free operation.
User Manual PSD3203
4

Technical Specifications
DC Outputs :
Output Current :
Setting Resolution :
Internal Resistance :
Stability :
Recovery Time :
Load Regulation :
Line Regulation :
Temperature Coefficient :
Ripple and Noise :
Current Limit :
Display :
Accuracy :
Over range Indication :
General Information :
Insulation :
:
Power Supply :
Operating Condition :
Dimension :
Weight :
A: 0 - 30 V, 3 A
B: 0 - 30 V, 3 A
con tinuously var iable by means of
coarse and fine controls
3 A (Max.)
Voltage : 10 mV
Current : 5 mA
10 m
2.5 mV at 30 V, 5 A
50 s
(0.05% + 10 mV)
(0.05% + 10 mV)
(0.05% + 10 mV/ C)
1 mVrms
Adjustable between 100 mA to 3 A
3 digit for voltage and current
(1% + 1digit)
By litting 'CC' LED.
Built-in overheat, over voltage, overload
protection.
Between chassis and output > 10 M at
100 V dc
Between chassis and AC plug > 50 M at
500 V dc
230 V 10 % , 50 – 60 Hz (100/ 120/ 220/ 240 V
available on request)
0 - 40 C , 95 % RH
W 165 , H 215 , D 360 mm
7.5 kgs. Approx.
(Subject to change)
£ W
£
£ m
£ ±
£ ±
£ ±
£
±
W
W
0
0
+
User Manual PSD3203 5

Front Panel Controls
6User Manual PSD3203
30 V, 3 A Dual Power Supply
PSD3203
Coarse
Fine
I Set
A: 30 V/ 3 A B: 30 V/ 3 A
Coarse
Fine I Set
++
Power A
ONOFF
30.0 V
3.00
3.00
30.0
A
V
B
1
2
3
4
6
7
8
9
10
11
5

POWER:
I
Push button for Switching ON/OFF the 230 V mains supply to the
instrument.
Variable potentiometer for the coarse
setting of the output voltages from the output terminals A & B. Adjustment
range 0-30 V.
Variable potentiometer for the fine setting of
the output voltage at terminals.Adjustment range 2.1 V.
Variable potentiometer for current limit setting
of the voltage source.Adjustment range 0.1 A - 3.00 A.
Output terminals for DC Power Supply “A”&“B”. Output terminals
of 4 mm-banana plugs for cable connection. The Output is short circuit
protected.
Push buttons are used to switch display from power
supply A to B & vice versa. Voltage & current reading are simultaneously
displayed for power supply A or B depending up on switch selected Current
is displayed with resolution of 10 mA& voltage with resolution of 0.01 V.
Individual display for voltage & current of power supply A
or B depending up on switch selected.
When supply “A”is in constant current mode the “A”LED lits. When supply
“A”is in constant current mode the “B”LED lits.
The instrument is provided with over voltage protection from mains variation.
The over voltage setting is at 253 V , whenever , the mains increases beyond the
set voltage , it trips and LED “HV”is lit. After the mains normalized, switch OFF
once the instrument and then switch ON again , if the mains is below 253 V, the
instrument get switched ON , other wise trips again.
& Coarse :
& Fine :
:
& Outputs :
Push Buttons A, B:
.
Display Window:
Note:
(VARIABLE POTENTIOMETER)
(VARIABLE POTENTIOMETER)
(VARIABLE POTENTIOMETER)Set
1
29
38
4
56
10
11
7
User Manual PSD3203

Operating Instructions
General Information
PSD3203
Safety
Warning!
Operating Conditions
PSD3203
The logical front panel layout of ensures rapid familiarization with the
various functions. However, even experienced operators should not neglect to
carefully read the following instructions, to avoid any operational errors and to be
fully acquainted with the instrument when later in use.
After unpacking the instrument, check for any mechanical damage or loose parts
inside. Should there be any transportation damage, inform the supplier
immediately and do not put the instrument into operation.
The case chassis and all measuring parts are connected to the protective earth
contact of the inlet. The mains plug shall only be inserted in a socket outlet provided
with a protective earth contact. The protective action must not be negated by the
use of an extension cord without a protective conductor.
When removing the metal case or replacing, the instrument must be completely
disconnected from the mains supply. If any measurement or calibration
procedures are unavoidable on the opened-up instrument, these must only be
carried out by qualified personnel acquainted with the danger involved.
The ambient temperature range during operation should be between + 0 to
+ 40 C and should not exceed. - 40 C or + 70 C during transport or storage. The
operational position is optional, however, the ventilation holes on the
must not be obstructed. Prior to calibration a preheat run of approx. 30 minutes is
required.
Any interruption of the protective conductor inside or outside the instrument
or disconnection of the protective earth terminal is likely to make the
instrument dangerous. Intentional interruption is prohibited. The mains/ line
plug should be inserted before connections are made to measuring circuits.
°
° ° °
8User Manual PSD3203

First Time Operation
Operation
PSD3203 Dual Fixed Output voltage operation :
After unpacking the instrument check for any mechanical damages. The
instrument should be plugged in mains-plug of proper mains supply 230 V
10%.On switch ON no undue observation should be noticed. Once the instrument
is switched ON the power ON is indicated by liting of displays.
The power supply has an electrically floating output. This permits easy series or
parallel connection with other power supply units, to increase supply voltage or
current respectively.
±
9
User Manual PSD3203
++
30 V, 3 A Dual Power Supply
PSD3203
Coarse
Fine
I Set
A: 30 V/ 3 A B: 30 V/ 3 A
Coarse
Fine I Set
++
Power A
ONOFF
30.0 V
3.00
3.00
30.0
A
V
B
Circuit Under
Test

Setting for +V & -V Outputs
Serial operation for 60 V, 3 A
10 User Manual PSD3203
30 V, 3 A Dual Power Supply
PSD3203
Coarse
Fine
I Set
A: 30 V/ 3 A B: 30 V/ 3 A
Coarse
Fine I Set
++
Power A
ONOFF
30.0 V
3.00
3.00
30.0
A
V
B
Circuit Under
Test
+V -V
GND
30 V, 3 A Dual Power Supply
PSD3203
Coarse
Fine
I Set
A: 30 V/ 3 A B: 30 V/ 3 A
Coarse
Fine I Set
++
Power A
ONOFF
30.0 V
3.00
3.00
30.0
A
V
B
Circuit Under
Test
+V GND

Parallel Operation for 30 V, 6 A
Over Voltage Protection
The instrument is provided with over voltage protection from mains variation. The
over voltage setting is at 253 V , whenever , the mains increases beyond the set
voltage, it trips and LED “ ”is lit. After the mains normalized, switch OFF once
the instrument and then switch ON again, if the mains is below 253 V, the
instrument get switched ON , other wise trips again.
HV
11
User Manual PSD3203
30 V, 3 A Dual Power Supply
PSD3203
Coarse
Fine
I Set
A: 30 V/ 3 A B: 30 V/ 3 A
Coarse
Fine I Set
++
Power A
ONOFF
30.0 V
3.00
3.00
30.0
A
V
B
Circuit Under
Test
+V GND

12 User Manual PSD3203
Maintenance
There are no user serviceable part inside .Your 30 V, 3 A Dual
Power Supply is thoughtfully engineered for ease of use, accuracy and reliability.
The instrument is carefully tested and calibrated using standards traceable to
National Laboratories.
Take care of your instrument by cleaning the exterior of the instrument regularly
with a dusting brush. Dirt which is difficult to remove on the casing & plastic parts,
can be removed with a moist cloth ( 99% water, 1% mild detergent) spirit or
washing benzene (petroleum ether) can be used to remove greasy dirt. The
display may be cleaned with water or washing benzene (but not with spirit-alcohol
solvents), it must then be wiped with a dry clean lint-free cloth. Under no
circumstances the cleaning fluid should get into the instrument. The use of
cleaning agents can attack the plastic & paint surfaces.
The power line fuse is located on rear panel on lower right side. In case, the
instrument does not show any sign of working, no LED is lit or there is no display
immediately switch OFF the mains power switch of the instrument and unplug the
mains cord from the mains socket. With the help of small flat blade screwdriver
remove the fuse cap of the fuse holder, located just below the socket. There is one
spare fuse kept in the fuse cap, replace it for the defective one. Press the cap so
that it locks in place . The rating of the fuse is 4A, 250 V , slow blow , 5x20 mm glass
fuse. Do not use a fuse with a higher value other wise it may damage the
instrument in case, the mains voltage goes much higher than the rating of the
mains fluctuation of 10%.
PSD3203 PSD3203
Power Line Fuse Replacement
+

13
User Manual PSD3203
Dispatch Procedure For Service
No user serviceable parts are inside the instrument , should it become necessary to
send back the instrument to factory for service, please observe the following
procedure.
Before dispatching the instrument please write to us giving full details of the fault
noticed.
1. After receipt of your communication, our service department. will advise you
whether it is necessary to send the instrument back to us for repairs or the
adjustment is possible in your premises.
2. Dispatch the instrument (only on the receipt of our advise) securely packed
in original packing duly insured and freight paid along with accessories and
a copy of the faults details noticed at our Service Center listed on last page
of this manual, nearest to you.

14 User Manual PSD3203
Warranty Conditions
1. Scientific warrants all its Instruments to be free from defects in material and
workmanship when used under normal operating conditions in accordance
with the instructions given in the manual for a period of 12 (Twelve) months
from date of purchase from Scientific or its authorised dealers. The service
during the warranty period will be rendered on return to factory /service center
basis.
2. Its obligation under this warranty is limited to repairing or replacing at its own
discretion. This warranty shall not apply to any defect, failure or damage
caused by accident, negligence, mis-application, alteration or attempt to
repair, service or modify in any way.
3. This warranty does not include LED, fuses, batteries or accessories. This
warranty is only valid with the original purchaser who must have properly
registered the product within 15 days from date of purchase. No other warranty
is expressed or implied.
4. When it becomes necessary to return the instrument to our Factory
facility, kindly pack it carefully in the original carton or equivalent and ship it
duly insured, transportation charges prepaid.
5. Your Scientific instrument is a complex electronic device and deserves the best
service available by technicians thoroughly familiar with its service and
calibration procedures.

15
User Manual PSD3203
Notes

16 User Manual PSD3203
Scientific Mes-Technik Pvt. Ltd., Ph : [phone],2422330-31
92, Electronics Complex, Fax :[phone]
Pardeshipura, [email protected]
Indore M. P. 452 010
Scientific Mes-Technik Pvt. Ltd., Ph : [phone], 65638101
B-13, D.S.I.D.C Packging Complex Fax:[phone]
Kirti Nagar, New DelhiI 110 015 [email protected]
Scientific Mes-Technik Pvt. Ltd., Ph : [phone]
NO. 46, 4th Main Cross , Fax:[phone]
MLA Layout, [email protected]
R. T. Nagar, Bangaluru 560 032
Scientific Mes-Technik Pvt. Ltd., Ph : [phone]
No. 25 , 2 nd floor, Fax :[phone]
29 th Cross Street [email protected]
Indira Nagar, Adyar
Chennai 600 020
Scientific Mes-Technik Pvt. Ltd., Ph. :[phone]
Room No. 308, Building No.2, Fax :[phone]
3rd Floor, Sundar Nagar [email protected]
Co-op. Hsg Society Ltd.
Senapati Bapat Marg, Dadar (W)
Mumbai 400 028
Scientific Mes-Technik Pvt. Ltd., Ph. : [phone]
209, Lloyd’s Chamber III Fax : [phone]
409, Mangalwar Peth, [email protected]
Maldhakka Chowk ,
Pune 411 011
Scientific Mes-Technik Pvt. Ltd.,
Scientific Mes-Technik Pvt. Ltd.,
Major Service Centers Phone / Fax / Email
Ph : [phone]
"Krupa Ashirwad Complex", Fax : [phone]
2nd Floor, Door No.5-2-394 81/A, [email protected]
R.P. Road, Hyderbasti
Secunderabad 500026
Ph : [phone]-6
2, Chowringhee Road, Fax : [phone]
Kolkata 700 013 [email protected]
1.
2.
3.
4.
5.
6.
7.
8.