User manual

EXTECHINSTRUMENTS

3CO50‐en‐GB_V1.212/14

MeterDescription

ButtonDescription

SETButton:

Setdateandtime

AudibleAlarmON/OFF(SET+MODE)

AlarmLimitAdjustment

Togglethetimeformat(12/24clock)

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SEL/RECALLButton:

Movetonextdigit

Shortpresstosavecurrentreading

Longpresstorecallstoredreading

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C/F/%RHButtonwithuparrow:

Increaseavalue

Pressandholdtoswitchtemperatureunits

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MODEButtonwithdownarrow:

Decreaseavalue

ReviewMaximum(MAX)reading

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MeterDescription

1. TopLCDdisplayforCOconcentration

2. MiddleLCDdisplayforRHandtemperature

3. BottomLCDdisplayTimeandDate

4. PowerAdaptorjack

5. Push‐buttoncontrols

6. MulticolorLEDindicatorlight

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LEDIndicatorDescription

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WhenmeterispoweredontheLEDisilluminatedorange

InnormalmodewithmeterON,LEDisnotilluminated

Eachtimeareadingisstoredinmemorythe LEDflashesgreenandtheaudiblebeepersounds

WhenthealarmistrippedtheLEDflashesredandtheaudiblebeepersounds

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