Campbell Scientific AM16/32A Multiplexer - Manual (Page 19)

AM16/32A Relay Analog Multiplexer
If more than the datalogger’s default number of input locations
are required, then additional input locations must be assigned
using the datalogger *A mode. Consult your datalogger manual
for details. NOTE
#6 Optional Processing - Additional processing is sometimes required to
convert the reading to the desired units. It may be more efficient if this
processing is done outside the measurement loop. A second loop can be used
for processing, if necessary.
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