TB 9-6625-086-24
(3) Turn the TI RANGE switch to .03-, .1-, .3-, l-, 3-, and 10-MW positions while
observing multimeter. If the multimeter does not indicate between -0.01 and +0.01 volts in
each position of the RANGE switch, perform b below.
b. Adjustments. Adjust R37 (fig. 1) for 0.00 0.01 volts on the multimeter at each
RANGE switch setting.
NOTE
Perform paragraph 10 below if power meter calibrator is
available as a standard. If a power meter calibrator is not
10. Range and Tracking Check with Power Meter Calibrator
a. Performance Check
(1) Connect the 200 ohm thermistor mount to the TI.
(2) Position the controls of the power meter calibrator as follows:
(a) FUNCTION switch to CURRENT OFF.
(b) MOUNT RESISTANCE to correspond with the resistance of the thermistor
mount being used.
(c) CURRENT and VERNIER fully counterclockwise.
(3) Connect the POWER METER terminals of the power meter calibrator to the
DC CALIBRATION terminals (rear panel) of the TI.
(4) Set the TI MOUNT RES switch to 200 .
(5) Set the TI RANGE switch to the .01 MW position and null and zero the meter.
(6) Position the controls of the power meter calibrator as follows:
(a) RANGE (MW) switch to .01.
(b) FUNCTION switch to CAL.
NOTE
After each change in position of TI RANGE switch, turn the
FUNCTION switch of power meter calibrator to the
CURRENT OFF position and adjust the TI zero controls for a
zero indication.
(7) Turn the TI and power meter calibrator RANGE switches to the settings listed
in table 3. If the indications are not within limits specified, perform b below.