If readjustment is required, use the following procedure. Locations of the adjustments are shown in Fig.
6
-
1
and Fig.
6
-
2.
(1
)
Adjustment of the Rating Voltage
A. Connect an accurate
(f0.1%) external multimeter to measure the dc voltage at output terminals of the power supply.
6.
Set the COARSE and FlNE VOLTAGE controls to minimum (fully counterclockwise).
C.
Turn the COARSE and FlNE VOLTAGE controls to maximum (fully clockwise).
D.
Adjust trimmer pot VR105 for
a
reading of rate voltsxl.05 on the mulitimeter.
E. Set the COARSE and FlNE VOLTAGE controls for a reading of rate volts on the multimeter.
F. Adjust trimmer pot VR301 (VR201 digital type) for a reading of rate volts on the voltmeter (Digital Panel meter, digital
type) of the power supply.
(2)
Adjustment of the Rating Current
A. Set the CURRENT control to minimum (fully counterclockwise).
B.
Connect
-
the external multimeter to measure dc current
at
the output terminals of the power supply.
C.
Set the COARSE and FlNE CURRENT controls to minimum (fully counterclockwise).
D. Adjust trimmer pot
VR107 for reading of 0 amps on the multimeter.
E. Set the COARSE and FlNE VOLTAGE controls to
a
centered position.
F. Setting and turn the COARSE and FlNE CURRENT controls to maximum (fully clockwise).
G. Adjust trimmer
pot
VR108 for a reading of 112rate ampsxl.05 on the multimeter. (LO current)
H. Adjust trimmer pot
VR109 for a reading of rate ampsxl.05 on the multimeter. (HI current)
I.
Readjust the CURRENT control for
a
reading of rate amps on the multimeter.
J.
Adjust trimmer pot VR110(HI), VR11 l(L0) to calibrate the Ammeter or Digital panel meter of the power supply for the
same reading as the multimeter.
64
Cleaning
To clean the power supply, use a soft cloth dampened in a solution of mild detergent and water. Do not spray
cleaner directly onto the instrument, since
it
may leak into the cabinet and cause damage.
Do not use chemicals containing benzine, benzene, toluene, xylene, acetone, or similar solvents.
Do not use abrasive cleaners on any portion of the power supply.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
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