TB 9-6625-2135-24
CALIBRATION PROCESS FOR
HEWLETT-PACKARD MODELS 3465A AND 3465B
6. Preliminary Instructions
a. The instructions outlined in paragraphs 6 and 7 are preparatory to the calibration
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.
b. Items of equipment used in this procedure are referenced within the text by common
name as listed in table 2.
c. Unless otherwise specified, verify the results of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure. Additional
maintenance information is contained in the manufacturers' manuals for this TI.
d. When indications specified in paragraphs 8 through 11 are not within tolerance,
perform power supply check prior to making adjustments. If power supply adjustments are
made, repeat paragraphs 8 through 11. Do not perform power supply check if all other
parameters are within tolerance.
e. Unless otherwise specified, all controls and control settings refer to the TI.
7. Equipment Setup
HIGH VOLTAGE is used or exposed during the performance of
this calibration.
DEATH ON CONTACT may result if
personnel fail to observe safety precautions.
REDUCE
OUTPUT(S) to minimum after each step within the
performance check where applicable.
a. R e m o v e p r o t e c t i v e c o v e r f r o m T I o n l y t o m a k e a d j u s t m e n t s a n d r e p l a c e
u p o n completion.
b. If necessary, set ~ LINE SELECTOR switch (rear panel) to 86-127 V position.
c. Connect TI to a 115 V ac power source. Press POWER pushbutton to ON and allow
at least 10 minutes for stabilization.
V and 20 m pushbuttons.
d. Press TI
e. Short TI V and COM. If necessary, adjust ZERO ADJ (rear panel) for 0.000
indication. Remove short.
8. Dc Voltage
a. Performance Check
and COM.
(1) Connect calibrator OUTPUT HI and LO to TI V