Additel 221A Multifunction Temperature Calibrator User Manual - Manual (Page 54)

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9.4.2 Simulate Transmitter
The transmitter is a device which can measure temperature, electrical signals and pressure, etc. Generating a signal
according to the measurement imposed.
The calibrator can simulate a transmitter.It can measure RTDs, thermocouples, frequency, volts, mA, ohms and
pressure (when the pressure module is connected), and output mA and voltssignal.
Before starting the transmitter simulation, you should ensure the external device is available.
Taking the example of an RTD Temperature Transmitter (T/I), proceed as follows:
1. Select the input and output quantities of the transmitter.
2. Enter the input and output spans of the transmitter.
3. Start running the simulate transmitter.
On the Quantity page, select mA&24V from the output quantity list and select RTD from input quantity list. In addition,
choose the correct sensortype, temperature unit and connection wires for the RTD (as shown in Figure 9.2).
On the Range page, set the input range 0 to 200℃ and the output range 4 to 20mA. Sometimes, it is necessary to set
the transfer function: Linear/Square root (as shown in Figure 9.3).
Press Enter or Start to start running the transmitter simulation. The simulation will pause when the transmitter is
working. When the simulation is paused, both the input and output of the transmitter will also pause