Specifications

AM25T Solid State Multiplexer
7
FIGURE 3. Differential Measurement of Type T Thermocouple
4.2 Differential Analog Measurements
Connect one differential sensor to a differential AM25T input channel.
Connect the sensor shields to the ground terminals next to the input channel.
Up to 25 differential sensors may be measured by one differential channel on
the datalogger (Figure 4).
FIGURE 4. Differential Voltage Measurement
4.3 Mixed Sensor Types
Different sensors may be mixed on the AM25T. Additional loops and
measurement instructions will be required.
5. General Measurement Considerations
Cables have additional capacitance that increases the time required for a signal
to settle its true value. To reduce settling time, Campbell Scientific