TB 9-6625-1966-24
CALIBRATION PROCESS FOR HEWLETT-PACKARD MODEL 3300A WITH
MODEL 3301A
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
c. Unless otherwise specified, verify the result 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 manufacturer's manual for this TI.
d. When indications specified in paragraphs 8 through 16 are not within tolerance,
perform the power supply check prior to making adjustments. After adjustments are made,
repeat paragraphs 8 through 16. 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.
WARNING
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 checks where applicable.
NOTE
The function generator, model 3300A and aux unit plug-in,
model 3301A are calibrated as a unit. If required, install model
3301A into front panel of model 3300A. Only model 3300A will
be referred to as the TI.
a. Connect PWR LINE GND, SHIELD GND, and OUTPUT GND terminals
(rear) together.
b. Remove shorting strap between FREQ DIAL and FREQ CONTROL
terminals (rear).
d. Connect autotransformer to a 115 V ac source and adjust for a 115 V output.
e. Set POWER switch to on and allow at least 30 minutes for equipment to reach
operating temperature.