Powerten 3300 Series, Руководство по эксплуатации

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M520086-01 4-6
Current Monitor/Parallel Tracking Amplifier Full-Scale Calibration
The current monitor/parallel tracking amplifier is accomplished by adjusting R77. The
following sequence is recommended.
a. Connect an external calibrated current shunt between the power supply negative
output and a resistive load bank capable of full-rated power. (As an option, the
shunt may be connected between the power supply positive and negative output
bus bars.)
b. Connect a DMM across the current shunt sensing.
c. Connect a DMM between TB1-12 and TB1-13.
d. Set front panel voltage control potentiometers fully clockwise.
e. Apply power to power supply.
f. Set front panel current control potentiometers for rated output current through
external current shunt.
g. Adjust R77 for 5.00 volts DC reading on DMM connected between TB1-12 and
TB1-13.
h. Remove power from power supply.
i. Reconfigure power supply for normal operation.
4.3.2 Display Assembly
Meter Zero Calibration
The zero set for both voltage and current front panel meter is automatic.
Meter Full-Scale Calibration
The full-scale adjustment for the digital panel meters M1 and M2 is adjusted by R8 and
R11, respectively, of the display assembly 10-010-086-00. R8 is for full-scale current
meter calibration, and R11 is for full-scale voltage meter calibration. Both resistors are
accessible from inside the power supply when the cover is removed.
To calibrate for full-scale voltage or current, adjust the power supply to maximum rated
output voltage (or current) using external calibrated meters and adjust the appropriate
meter to correspond to the rated output voltage or current.