TB 9-5915-214-35
(7) Adjust calibrator for a 50 Hz, 1 V output and reference true rms voltmeter to 0 dB.
(8) Adjust calibrator for initial output of 1 kHz, 1 V output and then adjust
calibrator frequency to obtain a -3 dB true rms voltmeter indication. If calibrator frequency
does not indicate 1 kHz, 20 Hz, perform b below.
(9) Press corresponding keys as listed in (a) through (e) below and verify CUTOFF
FREQUENCY indicates 100.0.
(a) 1 data entry key.
(b) 0 data entry key.
(c) 0 data entry key.
(d) KILO parameter key.
(e) FREQ parameter key.
(10) Adjust calibrator for initial output of 100 kHz, 1 V output and then adjust calibrator
indicate 100 kHz, 2 kHz, perform b below.
(11) Press corresponding keys as listed in (a) through (e) below and verify CUTOFF
FREQUENCY indicates 500.0.
(a) 5 data entry key.
(b) 0 data entry key.
(c) 0 data entry key.
(d) KILO parameter key.
(e) FREQ parameter key.
(12) Adjust calibrator for a 500 kHz, 1 V output and adjust frequency to obtain a -3 dB
true rms voltmeter indication. If calibrator frequency does not indicate 500 kHz, 10 kHz,
perform b below.
(13) Press corresponding keys as listed in (a) through (c) below and verify CUTOFF
FREQUENCY indicates 1.000.
(a) 1 data entry key.
(b) MEGA parameter key.
(c) FREQ parameter key.
(14) Adjust calibrator for initial output of 1 MHz, 1 V output and then adjust calibrator
indicate 1 MHz, 50 kHz, perform b below.
(15) Repeat (5) through (14) above, except make the following changes as listed in (a)
and (b) below:
(a) In step (5), press MODE parameter key until CUTOFF FREQUENCY
display indicates h.P.
(b) In step (7) adjust calibrator for a 20 kHz, 1 V output and reference true rms
voltmeter to 0 dB.
(16) Repeat technique of (1) through (15) above for CH 2.
b. Adjustments. Perform adjustments as indicated in Section IV if not previously
performed.
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