Global Specialties 1506 User Manual
Page 5
SECTION - 3
DESCRIPTION
INPUT AND OUTPUT TERMINATION :
The unit works from 230VAC, 47-63 Hz single phase supply with
internal tap selection facility for 115V AC operation. The input is
provided through a mains cable with a plug. The use of a three
core cable enables the cabinet of the unit to be properly grounded.
The unit as shipped from factory is wired for 230V /50Hz single
phase supply
Output is provided on two seperate sockets through a
output voltage range selector switch. In one position, it provides
0 -130 VAC at 4 Amps max whereas in other position,it provides
0-260VAC at 2Amp.max.
METERING :
One 3-digit DPM is provided to measure
1) Output voltage
2) Leakage current
3) Load current
Meter function is switch selectable
ON-OFF SWITCH AND FUSE :
The power ON-OFF switch is located on the front panel.
The fuses (Input & Output) are also located on the front panel.
The fuse ratings are clearly marked.
PANEL CONTROLS :
A voltage adjust knob allows adjustment of output AC voltage
and the output voltage selector switch selects the output
A C
voltage range so as to provide 0 -130VAC isolated output only on
American socket while 0 - 260VAC isolated output only on
European socket. Three meter function push switches are
provided to select the Leakage Current or Output Voltage or
Output Current (mA,V & A respectively.) to be displayed on the
meter.
3
PCB Components
GLOBAL 1505 / 06 SW - 0396
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Reference Designator
Part Description
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IC’S
IC1
7660 S
IC2
KA 741/ LM 741
PUSH SWITCHES
SW1 TO SW3
4 Pole, 2 Way ( Interlock )
RELAY
RL1
2/P 2CO 6V/6A ( OEN 58-06-2C )
CONNECTORS
CON1
5 PIN 2.54 PITCH ( MALE / FEMALE )
CON2
7 PIN 2.54 PITCH ( MALE / FEMALE )
PCB Components
0893 DPM
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Reference Designator
Part Description
=======================================================================
RESISTORS
R1
39K, ¼W, ±5%, MFR
R2
470K, ¼W, ±5%, MFR
R3
1ME, ¼W, ±5%, MFR
R4
SEL , ¼W, ±5%, MFR
R5
2.4K, ¼W, ±5%, MFR
R6
2.7K, ¼W, ±5%, MFR
R7
30K, ¼W, ±5%, MFR
R8
8.2K, ¼W, ±5%, MFR
R9
100E, ¼W, ±5%, MFR
R10
12K, ¼W, ±5%, MFR
R11
20K, ¼W, ±5%, MFR
R12
100E, ¼W, ±5%, MFR
R13
330E, ¼W, ±5%, MFR
R14
Not in Use
PRESETS
PR1
2.2K Horizontal
12