TM 11-6625-444-14-2
Index
No.
Control or Instrument
Function
High input terminal for connection of
INPUT HI
1
signal to be measured when REAR is
selected.
Low input terminal for connection of
INPUT LO
2
signal to be measured when REAR is
selected.
CASE
Voltmeter chassis ground terminal
3
(normally
connected to "earth"
ground).
Connects to internal guard circuit
INPUT GUARD
4
when REAR is selected.
Low dc reference signal input ter-
EXTERNAL REFERENCE, LO
5
minal for 4 wire ratio measurements.
(RATIO)
High dc reference signal input ter-
EXTERNAL REFERENCE, HI
6
minal for 4 wire ratio measurements.
(RATIO)
Connector for applying remote pro-
REMOTE PROGRAM INPUT
7
gram commands when in RMT mode.
Connector that provides BCD output
PARALLEL BCD OUTPUT
8
data for printout capability.
Combination power receptacle, fuse
AC POWER CONNECTOR
9
holder and ac mains voltage selector
t h a t permints operation at either
1 0 0 / 1 2 0 / 2 2 0 / 2 4 0 Vat.
Ohms Source Terminal +i
Provides + source for 2 and 4 ter-
10
minal ohms measurement.
Provides return for 2 and 4 terminal
Ohms Source Terminal -i
11
ohms measurement.
(1) Long signal leads are used to connect
to a high impedance source.
ed input system to minimize the affects of com-
This permits fully floating
mon mode noise.
(2) Making a floating measurement in the
measurements without degradation of accuracy.
presence of high common mode voltage and/or
high frequency.
Guarded measurements should be made when:
