Equipment Setup

TB 55-4920-346-34

NOTE

Unless otherwise specified, verify the result of each test and, whenever the test

requirement is not met, take corrective action before continuing with the

calibration.

Adjustments required to calibrate the TI are included in this

procedure.

Additional maintenance information is contained in the

manufacturer's manual for this TI.

NOTE

Unless otherwise specified, all controls and control settings refer to the TI.

7. Equipment Setup

a. Remove the test instrument from case by loosening the fourteen (14) panel mounting screws.

b. Set the test instrument on a workbench in the upright position.

c. Set all toggle switches on the test instrument to their normal OFF position.

Test equipment power will be switched off before making or removing jumper

and/or test equipment connections.

8. Inductors

a. Performance Check.

(1)

Connect equipment as shown in figure 1.

(2) Adjust signal generator (Al) for 400 Hz + 1 Hz on counter (A3) and output control for 18 vac as indicated

on voltmeter (A2).

(3) Disconnect voltmeter test lead (B2) only from signal generator and connect to test instrument terminal E36

on terminal board, using adapter (B6).

(4) Voltmeter will indicate between 12 and 12.5 vac. If not, perform b(1).

(5) Disconnect signal generator test lead from L1 pin 1 and connect to L2 pin 1. Remove voltmeter test lead

from terminal E36 and connect to E35.

(6) Voltmeter will indicate between 12 and 12.5 vac. If not, perform b(2).