SOMMER MRL-7, Руководство пользователя

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The T/rH-sensor in this example can be configured in Measurements, table as follows:
9.1.4 Differential voltage measurement
The analog input AN4 can also be configured as differential input. The wiring of a pyranometer with a
0…100 mV output is illustrated in
Figure 15 .
Figure 15: Wiring of differential voltage measurement (pyranometer)
The pyranometer in this example is configured in Measurements, table as follows:
9.1.5 Current measurement
By adding a precision shunt resistor to one of the analog voltage inputs, sensors with a current output
can be measured. The wiring of a infrared temperature sensor with an output of 4…20 mA and a meas-
urement range of -50…50 °C is illustrated in
Figure 16 .
Figure 16: Wiring of sensor with current output (infrared temperature sensor)
The infrared temperature sensor in this example is configured in Measurements, table as follows:
9.1.6 Resistance measurement
The analog inputs AN3 and AN4 can be used to measure resistances. The wiring of a 4-wire PT1000
temperature sensor is illustrated in
Figure 17 .