TB 9-6625-149-50
WARNING
HIGH VOLTAGE is used during the performance of this
calibration. DEATH ON CONTACT may result if personnel
fail to observe safety precautions.
23. Equipment Setup
a. Remove covers from TI.
NOTE
If TI is type 131-4, use 117-volt transformer housing current
probe amplifier for this calibration.
d. Connect TI to autotransformer.
e. Energize equipment and allow sufficient time for equipment to warm up and
stabilize.
SECTION VI
CALIBRATION PROCESS FOR CURRENT PROBE AMPLIFIER, TEKTRONIX
TYPES 131-1 THROUGH -4, WITH CURRENT PROBE, TEKTRONIX TYPE P6016.
NOTE
Unless otherwise specified, verify the results of each test and
take corrective action whenever the test requirement is not
met before continuing with the calibration.
NOTE
When indications specified in paragraphs 24 through 27 are
not within tolerance, perform the power supply check prior to
making adjustments. After adjustments are made, repeat
if all other parameters are within tolerance.
24. Input Impedance
a. Performance Check
(1) Connect equipment as shown in figure 3.
(2) Turn oscilloscope (A7) CALIBRATOR switch to 100 VOLTS.
18
