1-2
IM CA500-01EN
1.2 Source Function
The source function generates DC voltage, DC current, resistance, voltage corresponding to the
electromotive force of thermocouples, voltage corresponding to the resistance of RTDs (pseudo-
resistance), and pulse signals.
It can be used simultaneously with measurement functions other than temperature measurement
using thermocouples.
DC Voltage
This function generates the following DC voltages.
Range Source Range Notes
100 mV ±110.000 mV Maximum output current: 10 mA
1-5 V 0.0000 V to +6.0000 V Maximum output current: 10 mA
Can be used as calibration signals for 1, 2, 3, 4, 5 V.
(1-5 V√) 0.0000 V to +6.0000 V Maximum output current: 10 mA
Values for square root operation
5 V ±6.0000 V Maximum output current: 10 mA
30 V ±33.000 V Maximum output current: 1 mA
1-5 V 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 1 V, 2 V, 3 V, 4 V, and 5 V in 1
V steps by pressing the UP or DOWN key. This is convenient when calibrating the five points
from 1 to 5 V.
Square Root Output Function (1-5 V√)
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 1-5 V source value Square root output (1-5V√)
0% 1.0000 V 1.0000 V
25% 2.0000 V 1.2500 V
50% 3.0000 V 2.0000 V
75% 4.0000 V 3.2500 V
100% 5.0000 V 5.0000 V
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