Extech Instruments MA140 User Manual

MA140‐en‐GB_V1.01/15
8
Volt‐DetectionFeature
The meter’s audible beeper triggers and the display shows
dashes when the meter senses an electrical voltage field. The
higher the electrical field strength the greater the number of
dashesdisplayedandthefastertherateoftheaudiblebeeps.
If the meter does not emit a tone or display dashes
 in this
mode,thereisstillthepossibilitythatvoltageispresent.Please
usecaution.
1. Press the ‘V’ button to access the Non‐Contact Voltage
Detectmode.
2. Note the voltage detection display icons as shown in the
Descriptionsectionofthisguide.
3. Placethemeterneara
sourceofelectricalenergy.Thetip
oftheclampoffersthehighestsensitivity.
4. Notetheaudiblebeepingandthedashdisplays.
SmartDataHold
TofreezetheLCDmeterreading,presstheHOLDbutton.Whiledataholdisactive,the HOLD
displayiconappearsontheLCD.PresstheHOLDbuttontoreturntonormaloperation.The
HOLDiconwillswitchOFF.
Themeter’sbeeperwillsoundandthedisplaywillflashcontinuouslyifthe
detectedsignalis50
countsgreaterthantheheldreading.
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Extech Instruments MA140 Specifications

General

Brand	Extech Instruments
Model	MA140
Category	Measuring Instruments
Language	English