TM 55-1520-240-23-7
8-21
TEST TORQUEMETER POWER SUPPLY (AVIM)
(Continued)
8-21
TEST TORQUEMETER POWER SUPPLY
1.
Connect torquemeter power supply (1) to test
setup.
2.
Set electronic counter (2) to minimum time base
of 10 seconds.
3.
Turn on power supply (3) and adjust power
supply (3) to 30 vdc.
4.
Adjust resistance decade (4) to 20 ohms.
5.
Set switch (5) to ON.
6.
Set switch (6) to 7.5 mH position (closed). Check
voltmeter (7). Voltmeter shall read 537 to 543
millivolts. Check electronic counter (2). Counter
shall read 1,995 to 2.005 Hz.
7.
Adjust resistance decade (4) to 30 ohms. Check
voltmeter (7) and counter (2). Readings shall be
same as readings in step 6.
8.
Set switch (6) to 8.8 mH position (open). Check
voltmeter (7) and counter (2). Readings shall be
same as readings in step 6.
9.
Adjust resistance decade (4) to 20 ohms. Check
voltmeter (7) and counter (2). Readings shall be
same as reading in step 6.
10.
Adjust power supply (3) to 24 vdc. Repeat steps
6 thru 9. Check voltmeter (7) and counter (2).
Readings at each step shall be same as readings
in step 6.
SHUTDOWN
11.
Set switch (5) to OFF.
12.
Shutdown power supply (3).
13.
Disconnect torquemeter power supply (1) from
test setup.
INSPECT
FOLLOW-ON MAINTENANCE:
None
END OF TASK
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