Condenser Test Circuits

TM 9-4910-736-14&P

Connect DC DVM to test fixture and set DC DVM for 20 V dc range.

(3)

(4)

Set test fixture switch to 2 Mohms.

Set test set FUNCTION switch to COND.

(5)

(6)

Set test set CONDENSER switch to LEAK.

WARNING

DO NOT touch TEST LEADS or any equipment or leads when the

PUSH TO TEST switch is depressed. HIGH VOLTAGE is present

in this procedure.

Observe WARNING, depress PUSH TO TEST switch, and adjust

(7)

potentiometer R15 (figure FO-2) until test set meter indicates

10 KV on the black scale.

(8)

Set test fixture switch to DC VOLTS and observe that DC DVM

indicates from 4.55 to 5.45 V dc.

Set test fixture switch to 0.47 uF.

(9)

(10)

The

Observe the DC DVM and release the PUSH TO TEST switch.

DC DVM indication should drop to zero very quickly.

Set the power supply for 16 V dc .

(11)

DO NOT touch TEST LEADS or any equiment or leads when the

PUSH TO TEST switch is depressed. HIGH VOLTAGE is present

in this procedure.

(12)

Observe WARNING and depress the PUSH TO TEST switch. The test

set meter should indicate from 9.9 to 10.1 KV.

(13)

Release the PUSH TO TEST switch.

(14)

Set FUNCTION switch to OFF and disconnect test equipment.

Condenser Test Circuits.

Proceed as follows:

(1)

See figure FO-2 for location and set trimmer potentiometer R83

to 12 o'clock position and R55 to 11 o'clock position.

(2) Set ZERO ADJ OHM AND SERIES RES control to 12 o'clock position.

(3) Set FUNCTION switch to COND and if not already done, connect

BAT LEADS to 16 V dc supply.

(4) Set CONDENSER switch to SERIES RES.

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