TB 9-6625-2097-35
18. Span Gain
a. Performance Check
(1) Connect digital voltmeter (A4) negative lead to TP3 and positive lead to TP4
Figure 4. Model 13-4618-00 - side view.
(2) Set DEVIATION RANGE switch to OFF. If digital voltmeter does not indicate 0
10 mV, perform b(1) below.
(3) Connect ac calibrator (Al) to TI input (rear) connector pins 1 and 2, using two
leads (B5). Monitor output of ac calibrator with frequency counter (A5).
(4) Set DEVIATION RANGE switch to .5.
(5) Adjust ac calibrator frequency for 20.0000 ms as indicated on frequency counter
at 10 V. If digital voltmeter does not indicate 0 100 mV, perform b(2) below.
(6) Set CENTER FREQUENCY switch to 60.
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