Inspection Of A Unit Fitted With A Flow Housing - Honeywell Searchpoint Optima Plus Operating Instructions Manual

MAN0905_Issue 7_07/17
13. Maintenance using HART
7. Using a ½ inch / 13 mm A/F open ended spanner, unscrew the two retaining nuts and remove the
Standard Weather Protection.
8. Inspect the Standard Weather Protection for damage or build up of debris / contaminants. If required,
clean or replace weather protection.
9. Inspect the Dust Barrier and clean or replace if required.
10. Remove the Dust Barrier and inspect the optics.
11. Clean any dust or contaminants from the optics using mild detergent and a soft cloth or cotton bud.
Do not use solvents or abrasive cleaners.
12. Replace the Dust Barrier and Standard Weather Protection.
13. Select Device Reset to clear any faults or warnings that may have been generated by cleaning.
14. Press OK to initiate a Device Reset.
Note: If any configuration changes have been made, wait 15 seconds before doing a soft reset or cycling
the power.
15. The display shows a confirmation message. Press OK.
16. The display shows a note that the Searchpoint Optima Plus will return to normal operation,
press OK.
17. Select Inhibit.
18. Select End Inhibit and press Enter.
19. The display shows a confirmation message. Press OK to release the 4-20 mA output.
20. Return to the Welcome screen.

13.3 Inspection of a unit fitted with a Flow Housing

Searchpoint Optima Plus should be inspected periodically and cleaned if necessary. The required frequency
of inspection will depend on local site conditions and will need to be established through experience.
Caution: Gas readings may be generated during this procedure. Follow the steps to inhibit the
4-20 mA output. Ensure that the unit is not left in Inhibit mode.
1. Select Device Setup.
2. Select Test.
3. Select Inhibit.
4. Select Start Inhibit and press Enter.
5. The display shows a confirmation message. Press OK. The 4-20 mA output is now inhibited.
6. Inspect the Searchpoint Optima Plus unit, its junction box and cabling for any signs of physical damage.
7. Disconnect any pipework attached to the flow housing.
8. Using a ½ inch / 13 mm A/F open ended spanner, remove the two black nuts which retain the flow
housing. Keep the O-ring seals which are below the retaining nuts.
9. Slide the flow housing off the Searchpoint Optima Plus. This may require some force due to the friction
of the O-ring.
10. Clean any dust or contaminants from the optics using mild detergent and a soft cloth or cotton bud.
Do not use solvents or abrasive cleaners.
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Searchpoint Optima Plus with optional HART output
®
Operating Instructions
2108M0550
®