TB 9-6625-1956-35
(d) If power meter is of serial number 931-01751
8. Range Accuracy
or above, set A2S1 OPERATE/CALIBRATE switch
located on A2 logic board (left side of power meter) to
a. Performance Check
CALIBRATE.
(1) Connect equipment as shown in figure 1,
(3) Adjust ZERO control to mechanical midrange.
connection A.
If digital voltmeter (A2) does not indicate 0.0000 +0.050
mV de, perform b below. Adjust ZERO control for a
(2) Position power meter (A3) controls as listed in
digital voltmeter indication of 0.0000 +0.002 mV dc.
(a) through (d) below:
(4) Set TI ZERO/TEST switch to TEST. If
digital
voltmeter does not indicate between 0.674 and 0.682 mV
(a) MOUNT RESISTANCE switch to 2000.
de, and b was not performed in (3) above, perform b
below.
(b) RANGE switch to 10 mW.
(c) CALIBRATION FACTOR switch to 100%.
Figure 1. Range accuracy - equipment setup.
5