TB 9-4920-453-24
(12) Set OPERATION switch to DX1.0 and adjust calibrator output for full-scale
indication to TI meter. Calibrator output will be between 799.7 and 866.3 mV.
(13) Adjust calibrator output to minimum.
(14) Set OPERATION switch to DX0.1 and adjust calibrator output for full-scale
indication on TI meter. Calibrator output will be between 79.97 and 86.63 mV.
(15) Repeat steps (1) through (14) above for remaining three channels of TI.
b. Adjustments. No adjustments can be made.
9. Integrator Network Calibration
a. Performance Check
(1) Set OPERATION switch to DX1.0.
(2) Adjust calibrator for a frequency of 1000 Hz and output amplitude for full-scale
indication on TI meter.
(3) Record indication on calibrator.
(4) Set RANGE switch to 15.
(5) Adjust calibrator for frequency of 500 Hz, and output amplitude for an indication
of 10 on TI meter. Calibrator will indicate within 4 percent of value recorded in (3) above.
(6) Set RANGE switch to 50.
(7) Adjust calibrator for frequency of 250 Hz, and output amplitude for an indication
of 20 on TI meter. Calibrator will indicate within 4% of value recorded in (3) above.
(8) Adjust calibrator for frequency of 100 Hz, and output amplitude for an indication
of 50 on TI meter. Calibrator will indicate within 4 percent of value recorded in (3) above.
(9) Set RANGE switch to 150.
(10) Adjust calibrator for frequency of 50 Hz, and output amplitude for an indication
of 100 on TI meter. Calibrator will indicate within 4 percent of value recorded in (3) above.
(11) Set RANGE switch to 500.
(12) Adjust calibrator output amplitude for an indication of 3 on upper scale of TI
meter. Calibrator will indicate 3 times value recorded in (3) above, 4 percent.
(13) Set RANGE switch to 1500.
(14) Adjust calibrator output amplitude for an indication of 10 on lower scale of TI
meter. Calibrator will indicate 10 times value recorded in (3) above, 4 percent.
b. Adjustments. No adjustments can be made.
10. Amplifier Noise Check
a. Performance Check
(1) Disconnect INPUT signal.
(2) Set RANGE switch to OFF and set SENSITIVITY control for channel being
tested fully cw.