2 differential analog measurements, 3 mixed sensor types – Campbell Scientific AM25T 25-Channel Solid State Multiplexer User Manual
Page 11
AM25T Solid State Multiplexer
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.
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