38 Integra Series
Quick Start Guide
Figure 13
7700 switching module connections – 4-wire measurements
Channel assignments
For mainframe operation, the slot number for an installed switching module is
used to specify a channel for system channel operation. The system channel
number is made of three digits:
XYY
where: X is the slot number of the installed module.
YY is input channel of the module.
Example: 106
Channel 6 for module installed in slot 1.
DMM
Model 7700 Switching Module
Model 27xx
Slot
Terminal Block
H
L
7700 paired-channels
for these measurements:
Input
Sense
Chan 1
Chan 11
Chan 2
Chan 12
Chan 3
Chan 13
Chan 4
Chan 14
Chan 5
Chan 15
Chan 6
Chan 16
Chan 7
Chan 17
Chan 8
Chan 18
Chan 9
Chan 19
Chan 10
Chan 20
CH 1
Terminal Block
H
L
CH 11
H
L
CH 2
H
L
CH 12
H
L
CH 3
H
L
CH 13
Ratio or Channel Average
(DCV)
H
L
CH 4
H
L
CH 14
Channel Average
(TEMP - Thermocouple)
Input Channel
Relay 1
HI
LO
Input
Channel 25
Backplane
Isolation
Relay
Sense Channel
Relay 11
HI
LO
Sense
Channel 24
Backplane
Isolation
Relay
4-Wire
Ohms
(
Ω
4)
4-Wire
RTD
(TEMP)
To
p
To
p
To
p
Summary of Contents for Integra 27 Series
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