AEMC 3640 - 5 Maintenance; Warning; Cleaning; Replacing The Battery

Digital Ground Resistance Tester Model 3640 and 4610 37
CHAPTER 5
MAINTENANCE
5.1 Warning
Please make sure that you have already read and fully understand the
WARNINGsectiononpage3.
• Toavoidelectricalshock,donotattempttoperformanyservicing
unlessyouarequaliedtodoso.
• Toavoidelectricalshockand/ordamagetotheinstrument,donot
getwaterorotherforeignagents into thecase.Turntheinstru-
mentOFFanddisconnecttheunitfromallcircuitsbeforeopening
thecase.
5.2 Cleaning
NOTE: Disconnect the instrument from any source of electricity.
• Useasoftclothlightlydampenedwithsoapywater.
• Rinsewithadampclothandthendrywithadrycloth.
• Donotusealcohol,solventsorhydrocarbons.
5.3 Replacing the Battery
• Loosenthetwofasteningscrewsonthebatterycompartmentcover,
whichislocatedonthebottomofthecase(SeeFigure24).
• Removethebatterycompartmentcovertogainaccesstotheeight
1.5V“AA”batteries.
• Replacewithnewbatteriesandreassembletheinstrument.