Ametek Jofra ASC-400, Reference Manual, Page: 48 / 69

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8.3 Testing an Input or Indicating Device
To test and calibrate actuators, recording, and indicating devices using the source
functions
, follow the principle of navigating through the functions described in the
guidelines in section 4.2 and proceed as follows :
1. Select the lower display and select the desired primary parameter from the Lower
Mode list.
2. Select “Out” from the Test Mode list (input/output control).
3. Connect the leads to the device and the ASC-400 calibrator as shown in Figure 18.
8.4 Calibrating an I/P Device
To calibrate a device that controls pressure, follow the principle of navigating through
the functions described in the guidelines in section 4.2 and proceed as follows
:
1. Select the upper display and select “Pressure” from the Upper Mode list.
2. Select the lower display and select “Current” from the Lower Mode list.
3. Connect the ASC-400 calibrator to the device as shown in Figure 19.
The calibrator will simulate the transmitter current and measure the output pressure.
4. Enter a current using either the ARROW keys or the numeric keys.
Figure 18
Connections for Testing an
Output Device
Input / Measure Device
3 mA max. current