TB 9-6625-2050-24
(10) Press SENSOR ZERO pushbutton and wait for display readout to stabilize.
Release SENSOR ZERO pushbutton and wait for ZERO light to extinguish.
(11) Set range calibrator FUNCTION switch to CALIBRATE and adjust front panel
(12) Adjust LIN potentiometer A3R37 (fig. 1) until TI digital readout indicates
1.000 mW (R).
(13) Press MODE and RANGE HOLD pushbuttons to dBm and ON respectively.
NOTE
The next step sets the A-D log threshold. When specified
indication (-10.00) is obtained, digital readout should be just on
the verge of blanking, that is, readout may randomly alternate
between -10.00 and under range, -1.
(14) Set range calibrator RANGE switch to -10 dBm and adjust LZR A3R59 (fig. 1)
for -10 dBm (R).
(15) Press RANGE HOLD pushbutton to OFF and range calibrator RANGE switch
to 1 mW.
(16) Adjust LFS potentiometer A3R48 (fig. 1) until TI digital readout indicates
-0.00 (R).
(17) Press MODE pushbutton to WATT and adjust MTR A3R17 (fig. 1) until pointer
is half-way between last two marks on meter face (R).
12. Calibration Factor (Models 435A, 435B, 435BOPT001, and 435BE21)
a. Performance Check
(1) Connect range calibrator to TI POWER SENSOR cable supplied with TI.
(2) Connect multimeter to TI RECORDER OUTPUT (rear panel).
(3) Set TI RANGE switch to 1 mW.
(4) Position range calibrator switches as indicated in (a) through (c) below:
(a) RANGE to 1 mW.
(b) FUNCTION to CALIBRATOR.
(c) POLARITY to NORMAL.
(5) Adjust TI CAL ADJ control for a 1.000 V dc indication on multimeter.
(6) Set TI CAL FACTOR % switch to positions listed in table 9. Multimeter will
indicate within limits specified.
b. Adjustments. No adjustments can be made.