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Summary of Contents for 879RMS

Page 1: ...OPERATING INSTRUCTIONS Model 879RMS DIGITAL MULTIMETER...

Page 2: ...meter features compactdesign with rounded corners foreasy handling and has a rugged case in shock resistant and fire retardant Electronic overload protection forall functionsand ranges TheProtective H...

Page 3: ...ng material 4 Never touch exposed wiring connections testprobetips orany live circuit conductors when attempting to make measurements 5 Never replace the protective fuse insidethe DMM with a fuseother...

Page 4: ...t Terminal This is the positive input terminal for current measurement ac or dc up to 20A Connection is made to it using the red test lead 5 Function I Range Selector Rotary Switch This rotary switch...

Page 5: ...ows the errors that result when the average respondingmeasurement isused instead of the True RMS value This nii ltimeter isACCorlpledand will accurately measuretheAC RMS component ofan input signal Th...

Page 6: ...A minus sign on the left hand sideof theLCD will appear if the leads are connected the other way round CURRENT MEASUREMENTS These are made in series with the test circuit All the current to be measure...

Page 7: ...low resistance readingsand should be subtracted from resistance measurements for accuracy Select lowest resistance range and make the testleads short together Thedisplay value is thetest lead resistan...

Page 8: ...second nominal Operating environment 0 C to 50 C at 70 R H Storage temperature 20 C to 60 C 0 to 80 R H with battery 3 Apply the test leads to the points across which the frequency is to be removed f...

Page 9: ...Overload Protection 500V DC or RMS AC 300mV 300mV 600mV 800mV Continuity Test Open Circuit Volts 3 3Vdc 23 3Vdc 3 3Vdc 3 3Vdc e3 3Vdc 3 3Vdc Range 200Q 2kR 20kR 200kR 2MQ 20MQ Range l udible Threshold...

Page 10: ...s powered by a NEDA type 1604 or equivalent 9 volt battery When the multimeter displays the E3 the battery must be replaced to maintain proper operation Use the following procedureto replacing the bat...

Page 11: ...otary switch to OFF and remove the test leads from the input terminals 2 The case bottom is secured to the case top by three screws and two internal snaps at the LCD end Using a Phillips head screwdri...

Page 12: ...PIN7000 1328 March 1994...

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