1-12
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
