eXact 100 - Section IV: Maintenance; Calibration Procedure

1,
SECTION mw
an e = ae -v an
MAINTENANCE
CALIBRATION PROCEDURE
COOLING AND CLEANING
The TYPE 100 CALIBRATOR is cooled by con-
vection and it is quite important to keep
the inside clean as well as the ventilation
holes unobstructed.
REMOVAL OF CASE
To remove instrument from cabinet, loosen
two screws at each end and lift case off.
TUBE REPLACEMENT
Any tube may be replaced without affect-
ing calibration accuracy, FREQ. ADJ. pot
R51 will usually need readjustment when V51
is changed.
POWER SUPPLY
Check -150 volt and +175 volt supplies
for accuracy (plus or minus 5%) and regula-
tion (105V to 125V).
TRIGGER GENERATOR
Frequency may be adjusted over a limited
range by FREQ. ADJ. R51. This adj. is made
at the factory for a 1KC output.
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