Extech Instruments AN340 Manual

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AN340-EU-EN V1.3 4/13

P40:RTC(realtimeclock)

1. Onceinthesetupmode,attheP40RTCdisplay,momentarilypresstheENTERbuttonto

accesstheP40menu.

2. The‘12H’or‘24H’iconshouldnowbeshownonthedisplay.Usethearrowbuttonsto

select12H(12hourclock)or24H

(24hourclock).PressENTERtoconfirmentry.

3. TheupperdisplayshouldnowshowRTCagainandthelowerdisplaywillshowthedatein

YY‐MM‐DDformat.The‘YY’digitsshouldbeflashing.Usethearrowbuttonstoselectthe

currentyearandthenpressENTERto

confirm.

4. The‘MM’digitsshouldnowbeflashing.Usethearrowbuttonstoselectthecurrent

monthandthenpressENTERtoconfirm.

5. The‘DD’digitsshouldnowbeflashing.Usethearrowbuttonstoselectthecurrentday

andthenpressENTERtoconfirm.

6. Theupperdisplay

shouldnowshowRTCagainandthelowerdisplaythetimeinHH‐MM‐

SSformat.The‘HH’digitsshouldnowbeflashing.Usethearrowbuttonstoselectthe

currenthourandthenpressENTERtoconfirm.

7. The‘MM’digitsshouldbeflashing.Usethearrowbuttonstoselectthecurrentminute

andthenpressENTERtoconfirm.

8. The‘SS’digitsshouldnowbeflashing.Usethearrowbuttonstoselectthesecondsand

thenpressENTERtoconfirm.

9. Thedisplayshouldnowreturntothemain‘P40RTC’display.

10. Usethearrowkeystostep

toanotherparameterorpressESCtoexittheSETUPmode.

P50:OFFSET(relativehumiditydisplayoffset)

1. Onceinthesetupmode,attheP50UNITdisplay,momentarilypresstheENTERbuttonto

accesstheP50menu.

2. Usethearrowbuttonstoselectthedesiredrelativehumidityoffset.

3. PressENTERtoconfirmtheselection.

4. UsethearrowkeystosteptoanothersetupparameterorpressESCtoreturntothe

normaloperatingmode.

