Extech Instruments MA440

MA44x‐en‐GB_V1.08/16
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Description
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MeterDescription
1. Transformercurrentjaws
2. Jawopeningtrigger
3. M(Mode)button
4. BacklitLCD
5. Controlbuttons(seedescriptionsbelow)
6. COMnegativeinputterminal
7. Positiveinputterminal
8. Functionselector
9. NCValertsymbol
10. Backlightbutton(MA440)orWorkLightbutton
(MA443andMA445)
11. NCVsensor
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Note:Batterycompartmentislocatedonbackofmeter
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Fig.1–MeterDescription
DisplayDescription
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Relativemodeicon
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UnitsofFrequency
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Alternating/DirectCurrent
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UnitsofVoltage
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Negativereadings
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UnitsofCapacitance
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Diodemode
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Non‐contactACVoltageDetect
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Continuitymode
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Automaticrangemode
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DisplayHold
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Maximum/Minimumreadings
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Unitsofresistance
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LowBatteryicon
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AutoPowerOFFicon
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DutyCycle
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Danger:HighVoltage
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Measurementoverload
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