Honeywell Searchpoint Optima Plus - 1.4 Information

MAN0921_Issue 1_05/12 Searchpoint Optima Plus
Safety Manual
10
Optical Beam
15. Conrm that a fault is generated on the 4-20 mA output, either locally or at the controller.
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.
16. Remove the blockage from the beam.
17. Select Inhibit.
18. Select Start Inhibit and press Enter.
19. The display shows a conrmation message. Press OK. The 4-20 mA output is now inhibited.
20. Ensure that the large sealing O-ring in the body of the ow housing, and the two small O-rings which
go below the retaining nuts, are clean and in good condition. Replace if in doubt.
21. Slide the ow housing over the end of the Searchpoint Optima Plus and push until the ow housing is
rmly seated.
22. Re-t the O-rings and retaining nuts.
23. Select Device Reset to clear any faults or warnings that may have been generated by cleaning.
24. Press OK to initiate a Device Reset.
25. The display shows a conrmation message. Press OK.
26. The display shows a note that the Searchpoint Optima Plus will return to normal operation, press OK.
27. Select Inhibit.
28. Select End Inhibit and press Enter.
29. The display shows a conrmation message. Press OK to release the 4-20 mA output.
30. Return to the Welcome screen.
3.2 Re-zero Searchpoint Optima Plus
Caution: During this procedure the 4-20 mA output will be inhibited automatically. If the procedure is
aborted, ensure that the unit is not left in Inhibit mode.
Note: the calibration routine will timeout after 2 minutes of inactivity.
1. Select Device Setup.
2. Select Calibrate.
3. Select Gas Calibration.
4. The display shows a warning message, press OK.
5. Ensure that there is zero gas present in the vicinity of the Searchpoint Optima Plus. If necessary, t a
Gassing Cover and apply zero gas.
3. Proof test using HART
®
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