1-3
Features
IM CA500-01EN
1
DC Current
This function generates the following DC currents.
Range Source Range Notes
20 mA ±24.000 mA Output voltage: 0 to 20 V
4-20 mA 0.000 mA to 24.00 mA Output voltage: 0 to 20 V
Can be used as calibration signals for 4, 8, 12, 16, 20 mA.
(4-20 mA√) 0.000 mA to 24.00 mA Output voltage: 0 to 20 V
Values for square root operation
4-20 mA
Simulate
0.000 mA to 24.000 mA External power supply 5 V to 28 V
4-20 mA Range
The interval between 0% and 100% is equally divided by four, and the 0%, 25%, 50%, 75%,
and 100% values are output.
With the default settings, you can change the output between 4 mA, 8 mA, 12 mA, 16 mA, and
20 mA in 4 mA steps by pressing the UP or DOWN key. This is convenient when calibrating
the five points from 4 to 20 mA.
Square Root Output Function (4-20 mA√)
Values corresponding to the square root of 0%, 25%, 50%, 75% and 100% values are
generated. You can change the output using the UP or DOWN key. This can be used as
calibration signals for the square root output of differential pressure transmitters.
Percentage and source value
Percentage 4-20 mA source value Square root output (4-20 mA√)
0% 4.000 mA 4.000 mA
25% 8.000 mA 5.000 mA
50% 12.000 mA 8.000 mA
75% 16.000 mA 13.000 mA
100% 20.000 mA 20.000 mA
Simulate (20 mA Simulate) Function
You can connect this instrument to a distributor and simulate a two-wire transmitter. This is
valid when the range is set to 4-20 mA Simulate.
4-20mA
+
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Distributor
H
L
CA500/CA550
1.2 Source Function
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