Scientific PSD3205 User manual
User Manual
Dual Display Tracking
Multiple Power Supply
3205PSD
Scientific Mes-Technik Pvt. Ltd.,
B-14 Industrial Estate, Pologround,
Indore 452015(India)
Tel : 0731-2422330/31/32/33
Fax : 0731-2422334,561641
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 1.1 / 0414
2
User Manual PSD3205
Dual Display Tracking
Multiple Power Supply
3205PSD
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 PSD3205
Dual Display Tracking
Multiple Power Supply
3205PSD
Floating DC supply voltages
Dual DC 0 – 30 V, 3 A independent & tracking
Independent dual digital display for voltage & current for
both the DC outputs
Constant Voltage and Constant Current operatio
Adjustable Current Limiter
Protection against overload and short circuit
n
The PSD3205 is a dual display dual tracking 30 V, 3 A Power supply. It has
independent displays for voltage and current for both the supplies. It is designed as
a constant current (CC) and constant voltage (CV), source for laboratories,
industries & field testing applications, featuring low power loss, compact and light
weight. It provides isolated & floated adjustable 0 to 30 V, 3 A when used as
independent or with common ground with tracking mode output & is ideally suitable
for complexAnalog and Digital testing.
The DC outputs are adjustable from 0 to 30 V with coarse and fine controls in
tracking or in independent mode. 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
4User Manual PSD3205
Technical Specifications
DC Output :
Output A & B
DC Output :
Output Current :
Setting Resolution :
Internal Resistance :
Stability :
Recovery Time :
Load Regulation :
Line Regulation :
Temperature Coefficient :
Ripple and Noise :
Tracking Error :
Current Limit :
Display :
Accuracy :
Over range Indication :
General Information :
Insulation :
Power Supply :
Operating Conditions :
Dimension :
Weight :
A: 0 –30 V, 3A
B : 0 –30 V , 3A
0–30 V ,continuously variable by means of
coarse & fine controls
3 A(Max.)
Voltage : 10 mV ,
Current : 5 mA
10 m
2.5 mV at 30 V, 3A
50 s
(0.05% + 10 mV)
(0.05% + 10 mV)
(0.05% + 5mV/ °C)
1 mVrms
1 %
Adjustable between 100 mAto 3 A
Dual display, 3 digit 7 segment LED for voltage
& current forA, B
(1% + 1digit)
By litting A, B, TK LED
Built-in overheat, over voltage, overload protection
Between chassis & output > 10 M at 100 V DC,
Between chassis &AC plug > 50 M at 500 V DC
230 V 10 % , 50 Hz
0 - 40 C , 95 % RH
W 165 , H 215 , D 360 mm
7.5 kgs. approx.
(Subject to change)
£ W
£
£ m
£ ±
£ ±
£ ±
£
±
W
W
±
5
User Manual PSD3205
Front Panel Controls
Fig. 1 Front Panel Controls
6User Manual PSD3205
30.0 V
3.00
COARSE
FINE
Imax
COARSE
FINE Imax
POWER
ON
OFF
3.00
A
V
TRACK
1
2
3
4
56
7
8
9
11
10
A: 30V/3A B : 30V/3A
+
-
-
+
TRACK
DUAL DISPLAY
TRACKING POWER SUPPLY
PSD3204
30.0 30.0
3.00
POWER:
& INE
&
Push button for Switching ON/OFF the 230 V mains supply to the
instrument.
(Variable Potentiometer) Variable potentiometer for the coarse
setting of the output voltages from the output terminals. Adjustment range
0–30 V.
(Variable Potentiometer) Variable potentiometer for the fine setting
of the output voltage at terminals.Adjustment range 2.1 V.
(Variable Potentiometer) 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”, 4 mm
banana plugs for connections. The Output is short circuit protected.
Dual display for voltage & current, displays the
values for both supplies A & B . When supply “A”is used in constant
current mode the “A”LED lits ,which shows that the supply A is in constant
current mode. Similarly LED “B”will lit , “B”is in constant current mode .
When the TRACK mode is selected TK LED will lit.
The instrument is provided with over voltage protection from mains
variation. The mains input voltage is selected by switch on back side. The over
voltage setting is set at 253 V for mains input voltage 230 V & 273 V for mains input
voltage 240 V. Whenever, the mains increases beyond the set voltage, it trips &
LED “HV”is lit. After the mains normalized, switch OFF once the instrument & then
switch ON again, if the mains is below 253 V / 273 V , the instrument get switched
ON , other wise trips again.
&COARSE :
F :
:
Output Terminals :
Display Window :
NOTE :
IMAX
TRACK : When TRACK push button is pressed and the -ve terminal of A is
connected to +ve terminal of B by a shorting clamp, the power supply is
converted into tracking mode . The supply A act as a Master unit & B as
Slave unit.
29
3 8
47
5
10
11
7
User Manual PSD3205
1
Operating Instructions
PSD3205
PSD3205
General Information
Safety
Warning!
Operating Conditions
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 PSD3205
+
Circuit under Test
+
30.0 V
3.00
COARSE
FINE
Imax
COARSE
FINE Imax
POWER
ON
OFF
3.00
A
V
TRACK
A: 30V/3A B : 30V/3A
+
-
-
+
TRACK
DUAL DISPLAY
TRACKING POWER SUPPLY
PSD3204
30.0 30.0
3.00
First Time Operation
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.
Fig. 2 above shows independent operation of PSD3205 as power supply A &
power supply B
±
A) PSD3205 Independent output voltage operation
Fig. 2 Independent output voltage operation
9
User Manual PSD3205
B) PSD3205 Tracking Mode Operation
Fig. 3 Tracking mode operation
C) PSD3205 Serial Mode Operation
Fig. 4 Series mode operation
Fig. 3 above shows tracking mode of PSD3205. This mode can be enabled by
pressing 'TRACK' switch on front panel. –ve terminal of A supply is shorted with +
ve terminal of B supply with shorting clamps & connections are done as per above
diagram. In this mode t &he supplyA act as a Master unit B as Slave unit.
+
Circuit under Test
30.0 V
3.00
COARSE
FINE
Imax
COARSE
FINE Imax
POWER
ON
OFF
3.00
A
V
TRACK
A: 30V/3A B : 30V/3A
+
-
-
+
TRACK
DUAL DISPLAY
TRACKING POWER SUPPLY
PSD3204
30.0 30.0
3.00
Circuit under Test
+
GND
30.0 V
3.00
COARSE
FINE
Imax
COARSE
FINE Imax
POWER
ON
OFF
3.00
A
V
TRACK
A: 30V/3A B : 30V/3A
+
-
-
+
TRACK
DUAL DISPLAY
TRACKING POWER SUPPLY
PSD3204
30.0 30.0
3.00
10 User Manual PSD3205
Table of contents
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