2 MG310-en-GB_V1.0 12/15
Introduction
Thank you forselectingtheMG310InsulationResistanceTester.Thismetermeasuresinsulation
resistance,continuity,and andAC III AC Voltage. TheMG310isCAT 600V idealformeasuring
insulatingmaterialsand andelectrical asequipmentsuch transformers,cables,switches,
appliances.Applications testing, inspection.includemaintenance, and Properuseandcare thisof
meterwillprovidemanyyearsofreliableservice.
Safety
This Thistesteris indesignedandmanufactured compliancewiththeIEC61010standard. user
manual andincludesdetailedinformationrelatedtothesafeoperation careofthisinstrument.
Pleasereadcarefullybeforeusingtheinstrument.
Please read and understand this user manual before using the device.
Always use the device as specified in the user manual, retain the manual for future use and
checkthewww.extech.com website for newer versions of the user manual.
Misuse of this device may cause personal injury and damage to the instrument and
connectedequipment.
This symbol on the instrument indicates that for safe operation the user must use the
instrumentasdescribedintheuser manual.
Dangericons:Alerttoconditionsandactionsthatmaycauseseriousorfatalinjury.
Warningicons: Alert the user to the potential of electric shock.
Cautionicons:Alerttoconditionsandactionsthatmaycausedamagetotheinstrumentor
thatmayaffecttheinstrumentaccuracy.
Danger
Do not measure circuits with voltages greater than 750V AC.
Do not use this instrument in areas where flammable conditions exist.
Do not use this instrument in areas of high humidity. Do not operate this instrument with
wethands.
Do not touch conductive sections of the test leads when taking measurements.
When test leads are shorted and connected to the instruments do not press the TEST button.
Do not open the battery cover during tests.
Do not touch the tested circuits or wires during insulation measurements.
