Campbell Scientific AM16/32B Relay Multiplexer - Manual (Page 35)

AM16/32B Relay Analog Multiplexer
6.1 Single-Ended Analog Measurement without Sensor
16/32B Wiring — One single-ended sensor not requiring
onnected to an input SET with panel mode switch set to
er to Datalogger Wiring — The COM signal line is input to a single-
nalog input channel. The COM signal-ground line is tied to “
Excitation
Sensor to AM
excitation can be c
“2x32”.
Multiplex
ended a
” at
the CR23X, 21X, or CR7, and to “AG” at the CR10(X). Up to 32 single-ended
sensors can be measured by one single-ended datalogger channel in this
Low level, single-ended measurements are not recommended in
manner.
NOTE
21X applications where the 21X’s internal 12Vdc supply is used
r the multiplexer or other peripherals (see Section 4.1.4,
upply).
to powe
Power S
5000 "2 X 32" Mode
COM ODD H
COM ODD L
ODD H
ODD L
(+) SENSOR
(-)
COM
AM16/32
MUXSIGNAL
SHIELD
SENSOR SHIELD
2
C
1X/
R7 CR10(X) CR1000/C
CR23X/CR3000/
R850/
R5000
CR800/C
H H H
AG
CABLE3CBL G
AM16/32B
RE 6-1. Single-ended measurement without excitation FIGU
5000 "4 X 16" Mode
COM ODD H
COM ODD L
ODD H
ODD L
(+) SENSOR
(-)
COM
AM16/32
MUXSIGNAL
SHIELD
SENSOR SHIELD
21X/
CR7 CR10(X) CR100
CR23X/CR3000/
CR800/CR850/
0/CR5000
H
L
H H
L L
CABLE3CBL G
AM16/32B
6.2 Diffe
Exc
don’t
ch set to
elds are connected to the input
FIGURE 6-2. Differential measurement without excitation
rential Analog Measurement without Sensor
itation
Sensor to Multiplexer Wiring — Up to two differential sensors that
require excitation may be connected to one input SET with panel swit
“4x16” mode. Sensor shi
“ ” terminals.
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