Scientific PSD3304 User manual

User Manual
Multiple Power
Supply
PSD3304

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 1.2 / 1212
2User Manual D3304PS

User Manual D3304PS 3
M P S
PSD3304
ultiple ower upply
1. Introduction
2. Technical Specifications
.............................................................. 4
.......................................... 5
General Information
Safety
Operating Conditions
First Time Operation
3. Front Panel Controls
4. Operating Instructions
5. Maintenance
8. List of Service Centers
................................................ 7
............................................. 10
........................................
............................................................
......................................
....................................... 11
.......................................... 1
............................................................. 13
Power Line Fuse Replacement....................... 13
.............................. 14
................................................ 15
............................................. 16
Operation............. 1
6. Despatch Procedure for Service
7. Warranty Conditions
10
10
10

4User Manual D3304PS
Multiple Power Supply
PSD3304
DC: 0 to 30 V – 2 A , ± 15 V – 1 A, 5 V – 5 A
Constant Voltage and Constant Current Operation
Digital Display for Voltage and Current
Adjustable Current Limiter
Protection against overload and short circuit
The is multiple power supply with 30 V – 2 A, ± 15 V – 1 A and single
5 V – 5 A designed as a constant current (CC) and constant voltage (CV) source
for laboratories, industries and field testing applications, featuring Low Power
Loss, compact and light weight. It provides isolated, adjustable, floated, DC
output voltages ideally suitable for complex Analog and Digital Testing. These
floated DC outputs allow operating in series or parallel.
Outputs are adjustable 0 to 30 V , 2A , 0 V to ± 15 V, 1 A and 4.5 V to 5.5 V , 5 A.
Current limit is also adjustable. 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,
or C and is used to read the instantaneous values. 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.
PSD3304
PSD3304

User Manual D3304PS 5
Technical Specifications
DC Output : A:
B:
C:
Output A
DC Output :
Output Current :
Setting Resolution :
Internal Resistance :
Stability :
Recovery Time :
Load Regulation :
Line Regulation :
Temp. Coefficient :
Ripple and Noise :
Current Limit :
Output B
DC Output :
Output Current :
Setting Resolution :
Internal Resistance :
Stability :
Recovery Time :
Load Regulation :
Line Regulation :
Temp. Coefficient :
Ripple and Noise :
Current Limit :
Output C
DC Output :
Output Current :
0 to 30 V, 2 A
0 to 15 V, 1A
4.5 V to 5.5 V, 5 A
0 – 30 V cont. variable by means of coarse and fine
controls
2 A
Voltage : 10 mV
Current : 5 mA
< 10 mΩ
< 2.5 mV at 30 V, 2 A
< 50 µs
< ± (0.05% + 10 mV)
< ± (0.05%+ 10 mV)
< ± (0.05%+ 10 mV/ºC)
< 1 mVrms
Adjustable between 100 mAto 2 A
Adjustable between 0 V to 15 V
1A
Voltage : 10 mV
Current : 5 mA
< 10 mΩ
< 2.5 mV at 15 V, 1 A
< 50 µs
< ± (0.05% + 10 mV)
< ± (0.05%+ 10 mV)
<± (0.05%+ 10 mV/ºC)
< 1 mVrms
Adjustable between 100 mAto 1 A
Adjustable 4.5 V to 5.5 V
5 A
±
±

6User Manual D3304PS
Display
Display :
Accuracy :
Over Range Indication :
General information
Insulation :
Power Supply :
Operating Conditions :
Dimensions :
Weight :
3 digit for voltage and current , switchable forA, B, C DC
Outputs
V : ± (1%+1 digit) I : ±(1%+3 digit)
By litingA, B and C LED
Built-in overheat, over voltage , overload protection.
Between chassis and output > 10 MΩat 100 V DC
Between chassis andAC plug > 50 MΩat 500 V DC
230 V ± 10 % , 50 Hz
0 °C to +50 °C., RH 95 % (Max.)
W: 165, H: 215, D: 360 (mm)
7.7 kgs.Approx.
( Subject to Change )

User Manual D3304PS 7
Front Panel Control PSD3304
57
6
30.0 V
2.00
Multiple Power Supply 3304PSD
Coarse
V set I set
A : 30V/2A B : ±15V/1A
+
Fine I set
+
Power A B
ON
OFF
1
2
3
410
11
12
13
I set
C : 5V/5A
8
9
A
+
C+15V
-15V
V set
COM
4.5 V 5.5 V

8User Manual D3304PS
Front Panel Controls PSD3304
Power
Fine
.
I set
Output Terminal A
5 V Adjustment
Output terminal C
I set Adjustment
V set
Push Buttons
.
Display Window
!
② ( Variable Potentiometer) : Variable potentiometer for the coarse
setting of the output voltage from the output terminals. Adjustment
range is 0 to 30 V.
③ (Variable Potentiometer) : Variable potentiometer for the fine setting of
the output voltage at terminals Adjustment range is 2.1 V.
④ (Variable Potentiometer) : Variable potentiometer for the current limit
setting of the current source. Adjustment range is 0.1 A to 2.00 A.
⑤ : Output terminals for DC power supply “ A” , 4 mm-
banana plugs or cable connections. The output is short circuit protected.
⑥: DC output setting for 5 V from 4.5 V to 5.5 V.
⑦: Output terminals for DC power supply “C”, 4 mm-
banana plugs or cable connections. The output is short circuit protected.
⑧: Variable potentiometer for the current limit setting of the
5 V source.
⑨Output terminals for DC power supply “B”, 4 mm-
banana plugs or cable connections. The output is short circuit protected.
⑩(Variable Potentiometer) : Variable potentiometer for current limit
setting of “B”source . Adjustment range is 0.1 A to 1.00 A.
: Push button for switching ON/OFF mains supply to the
instrument.
Coarse
0
'A’,‘B’,‘C’are
15V
is
⑪ : ( Variable Potentiometer) : Variable potentiometer for the setting of
the output voltage for “B”supply. Adjustment range is V to 15 V.
⑫: Pushbuttons for switching the display from DC
Power Supply A , B or C . Voltage and current reading are simultaneously
displayed for A, B or C depending upon the switch selected. Push
Button for selecting display of positive output voltage and current or
negative voltage and current The current is displayed with as resolution of
10 mA and voltage is displayed with a resolution of 0.1V.
⑬: Display for voltage and current, displays the values in
Output terminal B
I set
:
±

User Manual D3304PS 9
Note
accordance to the switch selected. When supply “A”is set in constant
current mode the “A”LED lits, which shows that the supply is in
constant current mode. Similarly LED “B”& C”will lit in
current mode.
The instrument is provided with over voltage protection from mains
variation. The over voltage setting is at 253 V approx. 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 switch ON, otherwise trips again.
c o n s t a n t
:
“

10 User Manual D3304PS
Operating Instructions
General Information
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.
Safety
Warning!
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.
PSD3304
Operating Conditions
The ambient temperature range during operation should be between + 0 to
+50 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
0
0 0 0
PSD3304

User Manual D3304PS 11
First Time Operation
Operation
Triple Output Voltage Operation :
PSD3304
Fig.1 Connection of PSD3304 for Triple 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.
Figure below shows connection of for Triple Output Voltage Operation
COM
Circuit under Test
+
+
+
30.0 V
2.00
Multiple Power Supply 3304PSD
Coarse
V set I set
A : 30V/2A B : ±15V/1A
+
Fine I set
+
Power A B
ON
OFF
I set
C : 5V/5A
A
+
C +15V
-15V
V set
COM
4.5 V 5.5 V

12 User Manual D3304PS
Setting For +V and -V DC Outputs:
Figure below shows connection of for
Figure below shows connection of for series connection of supply A, B,
C to obtain output as 65 V, 1 A
PSD3304
Fig.2 Connection of PSD3304 for
PSD3304
Fig.3 Connection of PSD3304 for Series Operation
+V and -V DC Output setting
+V and -V DC Output setting
Serial Operation for 65 V, 1 A
Circuit under Test
+
Gnd
V V
30.0 V
2.00
Multiple Power Supply 3304PSD
Coarse
V set I set
A : 30V/2A B : ±15V/1A
+
Fine I set
+
Power A B
ON
OFF
I set
C : 5V/5A
A
+
C +15V
-15V
V set
COM
4.5 V 5.5 V
Circuit under Test
+
Gnd V
30.0 V
2.00
Multiple Power Supply 3304PSD
Coarse
V set I set
A : 30V/2A B : ±15V/1A
+
Fine I set
+
Power A B
ON
OFF
I set
C : 5V/5A
A
+
C +15V
-15V
V set
COM
4.5 V 5.5V

User Manual D3304PS 13
Maintenance
There are no user serviceable part inside . Your
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 4 A, 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%.
P D3304 P D3304 Multiple
Power Supply
S S
Power Line Fuse Replacement
+

14 User Manual D3304PS
Despatch 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.
1. Before despatching the instrument please write to us giving full details of
the fault noticed.
2. After receipt of your letter 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.
3. Despatch the instrument (only on the receipt of our advise) to us at our
factory address, securely packed in original packing duly insured and
freight paid along with accessories and a copy of the fault details noticed
at our Service Center listed on last page of manual nearest to you.

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 centre 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.
User Manual D3304PS 15

16 User Manual PSD3304
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 [email protected]
81/A, R.P. Road, Hyderbasti
Secunderabad 500026
Ph : [phone]-6
2, Chowringhee Road, Fax : [phone]
Kolkata 700 013 [email protected]
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