TB 1-4920-443-35
(6) Measure the voltage between the two phases selected on the voltmeter selector switch on the Meter
Panel Assembly. Functional test the voltmeter by comparing measured voltages to voltmeter
indication.
11. AC Ammeter
a. Functional test the AC ammeter by noting current indications on each phase.
12. DC Ammeter
a. Functional test the DC ammeter by noting current indication.
13. Frequency Meter
a. Functional test the Frequency Meter by verifying a reading of approximately 60 Hz.
14. Power System Functional Tests
a. Performance Check
(1) Depress the TI 60 Hz Power Switch to ON.
indication is between 200 and 216 V ac.
indication is between 200 and 216 V ac.
indication is between 112 and 128 V ac. Ensure that the TI Frequency Motor 60 Hz indication is 60
Hz.
(5) Set the TI DC VOLTMETER selector switch to 28 V dc Supply No. 1.
(6) Depress the TI 28 V dc No. 1 power switch to ON. Verify that the TI DC voltmeter indication is 28V dc
0.5V.
(7) Set the TI DC VOLTMETER selector switch to 28 V dc SUPPLY No. 2.
(8) Depress the TI 28 V dc No. 2 power switch to ON. Verify that the TI DC Voltmeter indication is 28V dc
0.5V.
(9) Verify that all TI PRESS-TO-TEST indicators are operational.
15. Vibration Meter System
a. Performance Check
(1) Depress TI CB316 60 Hz INSTRUMENT circuit breaker to ON. Ensure that the system is in the T700
mode (See FEDS operator's manual, Engine Test Configuration). Set tracking filter assembly to OUT
and channels 1, 2, and 3 to desired engine. Set channels 4 and 5 to position 1.
(2) Sensitivity Adjustment
(3) This procedure adjusts the sensitivity of the CEC 2047 amplifiers to match the output level of the
transducer being used. To make the sensitivity adjustment, proceed as follows:
(4) Set the TI Vibration Meter Amplifier controls on all channels as follows:
Table 15-1 TI Meter Amplifier Controls
FILTER switch to
CAL
MODE switch to
VEL
RANGE switch to
150
XDUCER switch to
ACCEL
OUTPUT switch to
AVG
