Fix The 4-20 Ma Output - Honeywell Searchpoint Optima Plus Sicherheitshandbuch

MAN0921_Issue 1_05/12 Searchpoint Optima Plus
Safety Manual
2. Proof test using
SHC1 Handheld Interrogator

2.4 Fix the 4-20 mA Output

The 4-20 mA output can be set to a fixed value, to prove correct operation of the 4-20 mA loop.
Note: The 4-20 mA output can be monitored either at the control room or locally with a multimeter. When
connecting or disconnecting a multimeter, power off the Searchpoint Optima Plus, otherwise the unit will
indicate a latched warning that the 4-20 mA loop was broken. If this occurs it can be cleared by performing
a Soft Reset.
1. Select Calibrate then Force 4-20.
2. Use ▲ and ▼ to set the mA value to 4 mA and press Enter.
3. Check that Searchpoint Optima Plus outputs the set mA value.
4. When the test is complete, press Enter.
5. Repeat steps 2 - 4 for mA values of 12 mA and 20 mA.
6. Press Enter to release the 4-20 mA output signal.
7. Press Escape to return to the main menu.
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