P 3 2 1
Load resistor: see ' ' Firing circuit adjustm ent " .
1 .
Connect RAC PAC as shown. "Sense" s witch at "INT" . S 4 at " NORMAL" .
Voltage control at ::32 resp. 6 0 V . OVP is off.
2 . S et current limit ( C L) control to 50% nominal current.
Connect a 10 mA FSD V TVM or TVM b etween red·-green-black wire
( ground) and wiper arm of P93 (red-black-grey) .
3 . Close S and adjust the load resistor so that output falls to approxima
tely 1/3 nominal output voltage .
4. Adjust P3 for zero reading on V TVM.
5. S et the CL control to min. and adjust P94 for an output current equal
to m in. current, given in the specification " Current range" .
6 . S et C L control to max. nominal . Adjust P92 for correct output current.
d .
M E T ER CA LIBRATION
D
0
0
0
A m m e t e r
F i g u r e
3 8 .
M e t e r
c a l i b r at i o n
0
1 'lo
D C
Vo l t m e t e r
P 1 01
P 1 0 2
P 1 0 3
V1_1ltmeter
( Figures within brackets refer to 6 0 V models)
CJ O
1 .
Connect RA C PAC as shown. "Sens e" switch at "INT" . S4
at
" NORMAL' ' .
S open. OVP is off.
2 . Set the output voltage at 7, 8 V (6 , 3 V) . Adjust P32 1 to obtain range
switching.
3 . S et the voltage at 7, 0 V (6 ,
O
V) . Calibrate lower range of the voltmeter
· with P102 .
43
5 4
