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IM CA500-01EN
1.4 Measurement Function
The measurement function measures DC voltage, DC current, resistance, temperature, and pulse
signals.
It can be used simultaneously with source functions other than temperature measurement using
thermocouples.
Temperature measurement using thermocouples can be performed simultaneously with another
measurement.
DC voltage
This function measures the following DC voltages.
Range Measurement Range Notes
100 mV ±110.000 mV Input resistance: 1 GΩ or more
5 V ±6.0000 V Input resistance: Approx.1 MΩ
50 V ±55.000 V Input resistance: Approx.1 MΩ
DC Current
This function measures the following DC currents.
Range Measurement Range Notes
50 mA ±60.000 mA Input resistance: 10 Ω or less
Loop Power
A loop test can be performed by applying a constant voltage of 24 VDC to a two-wire
transmitter and measuring the transfer signal.
4-20mA
24VDC
+
—
Distributor
Two-wire transmitter
H
L
CA500/CA550
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