TB 9-6625-2798-50
(16) Repeat (12) through (15) above until no
further adjustment is required.
(8) Push PRESS TO TEST pushbutton on
test instrument.
Adjust panel ZERO
(18) Turn off power supply.
Remove all
525 volts. (R)
connections to test instrument.
Place
instrument. Be sure not to disturb ZERO
assemble four panhead screws.
control setting on panel.
(19) Connect batteries to battery leads. Place
(10) Connect the COMMOX terminal on the
inner case in test instrument case.
test instrument to the LOW terminal of
Assemble four flathead screws.
decade resistor (A1) using adapters (B1)
and lead (B3).
4-2. Meter Accuracy (Personnel).
(11) Connect the FLOOR AND EQUIPMIENT
terminal on the test instrument to the
a. Performance Check
HIGH terminal of decade resistor using
adapters (B2) and lead (B4).
(1) Short COMMON and PERSONNEL
(12) Set decade resistor at 000,000.00 ohms.
terminals on the test instrument.
(13) Push PRESS TO TEST pushbutton on
(2) Push PRESS TO TEST button on test
instrument and zero the meter. Release
zero meter. Release PRESS TO TEST
button.
pushbutton. (R)
(3) Remove
shorting
lead
from
test
(14) Set decade resistor at 250,000 ohms.
instrument.
(15) Push PRESS TO TEST pushbutton on
(4) Connect equipment as shown in Figure
test instrument. Adjust R6 in a direction to
4-4 for calibration of
test instrument
double the error (Higher or lower than
.
250,000 ohms).
Release PRESS TO
TEST pushbutton. (R)
Figure 4-4. Performance check. setup for less than 1 megohm
(personnel)
7