Honeywell Searchpoint Optima Plus - 13.4 Bump Test (Gas Challenge)

MAN0905_Issue 7_07/17 Searchpoint Optima Plus with optional HART
®
output
Operating Instructions
2108M0550
63
11.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.
12.SlidetheowhousingovertheendoftheSearchpointOptimaPlusandpushuntiltheowhousingis
 rmlyseated.
13.Re-ttheo-ringsandretainingnuts.
14. Select Device Reset to clear any faults or warnings that may have been generated by cleaning.
15. Press OK to initiate a Device Reset.
Note:Ifanycongurationchangeshavebeenmade,wait15secondsbeforedoingasoftresetorcycling
the power.
16.Thedisplayshowsaconrmationmessage.PressOK.
17. The display shows a note that the Searchpoint Optima Plus will return to normal operation, press OK.
18.SelectInhibit.
19. Select End Inhibit and press Enter.
20.Thedisplayshowsaconrmationmessage.PressOK to release the 4-20 mA output.
21. Return to the Welcome screen.
13.4 Bump Test (Gas Challenge)
Searchpoint Optima Plus can be functionally checked using an appropriate test gas.
Caution: Gas readings will be generated 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unitshouldbepoweredupfor1hourbeforeagastestisdone.
1. Select Device Setup.
2. Select Calibrate.
3. Select Bump Test.
4. Select Start Bump Test and press Enter.
5. Thedisplayshowsaconrmationmessage,pressOK. The 4-20 mA output is now inhibited.
6. Fit a Gassing Cover to the Searchpoint Optima Plus.
7. Applyanappropriatetestgasatarateof1–1.5litresperminutefor~30-60s.
8. CheckthattheSearchpointOptimaPlusrespondstothetestgas.Thelivegasconcentration
is shown on the screen. The reading should be within ±20 % of target. When ready to continue
press OK.
Note:Ifthegasreadingisnotacceptablefortheapplication,re-zerotheSearchpointOptimaPlusand
repeatthetest.Factorstoconsiderwhenevaluatingthegasresponseinclude:-
• Test gas and concentration
• Tolerance of the test gas concentration
• Atmospheric pressure
• Ambient temperature
• Wind speed
13. Maintenance using HART
®
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