9
MEMButton DataLock/Store/View
Button Alarmfunction start/alarmthreshold
setting
R and U Measuregearselection
VIII. Operation Methods
1．SwitchOn/Off
Turnthe function keytothecorrespondingtestposition and turniton.
Turnthe function keytotheOFF position toturnofftheinstrument, themeter
will be automaticallyturned off, and afterturning off, itwill be turnedtothe
OFF positionandrestart..
2．BatteryVoltageCheck
Afterswitchon,ifLCD displays lowbatteryvoltage icon““，which
indicatesthat batteryvoltage islow, andpleasereplacethebatteryintime.
3.Ground voltagemeasurement
Pleasemakesuretestingwire plug hasbeentotallyinserted intotesters
correspondinginterfaceanditmaycausemeasurementvalueerrorfor
incompleteinsert orpoorcontact.
The testercannotbeusedfor commercialpower supplyvoltage
measurement.Forspecial situationthatneedstomeasure,itcan only
useV,Einterfacetoconnectformeasurement.Itisnotallowed to
measure commercialpower voltagein thecaseofshortcircuitofH,S
interface.Otherwise,measuringvoltage in theearthing circuitofcutout
switchmaycausecutoutswitchstart.
Onmeasuringearthingvoltage,pleasedonotimpose
on measurementconnectors.
Whenmeasuringgroundvoltage,donottouchexposedconductorsto
avoidelectric shock.
Aftertheauxiliarygrounding rod andtestline areconnected,switchthe
functionbuttonUtothevoltagelevel,the LCD displaysthe voltagetoground,
and themeasuredvoltagetoground cannotexceed 600V.
Ingeneral,formeasuring earthingvoltage,itisonlytoconnectthe
testing wires corresponding to V, E interface.Asshown:
