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Explanation
Source Function
You can select from the following three source functions.
mA Source
mA Simulate
V Source
mA Source
The CA700 output DC current in the range of 0 to 20 mA.
mA Simulate
The CA700 can absorb a specified amount of current from a distributor or other external voltage
source. This enables you to use the CA700 as a two-wire transmitter simulator for loop and other tests.
CA700
SOURCE
MEASURE
V mA
mA/V
COM
4 to 20 mA
24 VDC
+
–
Distributor
Output 1 to 5 V
CAUTION
Use a distributor or other external source voltage in the range of 5 to 28 V.
If the HART resistor inside the CA700 is turned on, use the external voltage source in the
range of 12 to 28 V.
Do not reverse the applied voltage polarity. Doing so may damage the CA700.
V Source
The CA700 output DC voltage in the range of 0 to 5 V.
2.3 Generating DC Current and DC Voltage
2-16
IM CA700-01EN