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Features
IM CA700-01EN
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Index
Percentage Display
By taking the lower limit of the specified span to be 0% and the upper limit to be 100%, the CA700
displays the measured values as percentages along with the measured values themselves.
Relative Display (RELATIVE)
The CA700 displays the difference between the measured values and the specified reference value
(measured value – reference value). You can set the reference value to any value that you choose or
the value that exists when you press RELATIVE.
Hold
The CA700 holds the measurement display.
Min/Max Display
The CA700 can display the minimum and maximum measured values.
Hysteresis Warning (HYS)
If the external pressure sensor in use receives the pressure exceeding its limit value, this may affect
measurement for a while even when the pressure falls below the limit value.
In the CA700, if the pressure input to the external pressure sensor exceeds the limit value, "HYS"
appears on the screen.
Even when the pressure falls below the limit value, HYS continues to appear for a period of time. This
period depends on the range and input pressure. Wait for HYS to disappear, and then use the external
pressure sensor.
DC Current and DC Voltage Source
The CA700 can generate DC current between 0 to 20 mA and DC voltage between 0 to 5 V. It can
generate a specific DC current or voltage or sweep the current or voltage within a specific range.
Sweeping
There are two sweep modes: step and linear.
Step sweep
The CA700 divides the specified range of current or voltage into 2 to 10 equal levels and outputs
them.
Linear sweep
The CA700 varies the current or voltage output linearly within the specified range.
Simulation
The CA700 can absorb a specified amount of current from a distributor or other external voltage
source through the high terminal. 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
1.2 Pressure, DC Current, and DC Voltage Source and Measurement Functions