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D.C VOLTAGE MEASUREMENT. (Cont)
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TM-9-2350-222-20-1-2 Combat Engineer Vehicle Full-Tracked M728
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A.C VOLTAGE MEASUREMENT. (Cont)
TM 9-2350-222-20- 1-2
USE OF
OR ME-77 C/U MULTIMETER
(Continued)
VOLTAGE MEASUREMENT.
EXAMPLE: THE METER SHOWN BELOW HAS THE
FOLLOWING READINGS:
The only
the red scale  used
when the selector
set
READING
SELECTOR SWITCH
to the AC VOLTS 10 position.
AC VOLTS1O . . . . . . . . . . ..4.0 VOLTS (RED SCALE)
AC VOLTS1OO . . . . . . . . .40 VOLTS (BLACK SCALE)
AC VOLTS 1OOO . . . . . . .400 VOLTS (BLACK SCALE)
I
AC VOLTS
Read position of needle on
I
and interpret reading according to selector
NEEDLE
Set
selector switch to the AC VOLTS scale
q
indicated in your troubleshooting procedure.
WARNING
--
De-energize/energize circuits as in-
your troubleshooting
dicated
procedure.
I
- - C A U T I O N    -----
you are unsure of the amount of
SELECTOR
I  voltage to be measured always start I
SWITCH
the selector switch, at AC
for the first reading.
first reading is less than 100 volts,
set selector switch to AC VOLTS 100.
second reading is less than 10
set selector switch to AC
VOLTS 10 and take third reading.
L- -
r
. Connect meter probes to circuit under test as indicated
in your troubleshooting procedure.
Read position of needle on
AC VOLTS scale
q
PROBES
and interpret reading according to the following table:
POSITION OF NEEDLE ON
SELECTOR SWITCH
RED/BLACK AC VOLTS
SETTING
SCALE IS:
READ DIRECTLY ON RED
AC VOLTS 10 (10 VOLTS AC
10 (BLACK SCALE)
MULTIPLIED
1111
VOLTS AC MAX)
AC
MULTIPLIED BY
(B1 ACK
CIRCUIT UNDER TEST
AC
VOLTS AC MAXI
s
4-48

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