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

MAN0921_Issue 1_05/12 Searchpoint Optima Plus
Safety Manual
3. Proof test using HART Communications
®

3.4 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: This function will timeout after 10 minutes of inactivity.
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 Device Reset.
1. Select Device Setup.
2. Select Test.
3. Select mA Loop Test.
4. The display shows a warning message, press OK.
5. Select 4 mA as the required analogue output level and press Enter.
6. Check that Searchpoint Optima Plus outputs the set mA value.
7. When ready, press OK.
8. Repeat steps 4 to 7 for mA values of 12 mA and 20 mA, then select End.
9. The display shows a note that the Searchpoint Optima Plus will return to normal operation, press OK.
10. The display shows a confirmation message, return to the Welcome screen.
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