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Summary of Contents for M-3800

Page 1: ...m DIGTTAL MULTIMETTR OPERATINGMANUAL lvl 3ElC o ...

Page 2: ...afety Symbols 2 3 Safety l arnings 3 Features 3 1 overload Irńication 3 2 low Battery Irdicator 3 3 Other Feature 4 basurirĘ Instructions 4 7 Preliminary Notes 4 2 DC Voltage Measurement 4 3 AC Voltage Measurenent 4 4 E Cument Mreasurement 4 5 AC Current Measurement 4 6 Resistance łleasurement 4 7 Diode I teasurement 4 8 Ar rdibleContinuity Test 44 Transistor hre l4easurement 5 łaintenance 1 5 1 9...

Page 3: ...s that the input voltage or current should not exceed ttle values irdicated on the Ternrinal panel on the front panel fudicates that dangerous voltages may exist at the terminals for fuse replacemnt l i1 for Battery replacement on the front pane irńicates doub e llU insulation 2 3 Safety l arnings f 3 1 To prevent electrical shocK haząr d arrr1 or damage to the meter do not measure voltages exceed...

Page 4: ...ical shocK hazard do not touch test leads tips or the circuit under measurement while power is turned on f 3 1 Ensure the test Leads are in good condition f 3 8 Do not get the meter arrd test leads wet thasunry Instnrtions 4 1 Prelininary t otes 4 1 1 Sometimes the last digit wj ll not regj ster 0 This however will have no effect on the measured value 3 Featlres 3 1 Oyerload Irdication is displaye...

Page 5: ...nown before measurement set the functron switch to the nightest range first and nove down the ranges steP bY steP 2 lthen the 1 is displayd the range ie overloaded The furction swit ch nrugt b set to a hi ter range 3 TaKe care to avoid mntact with high tension circuits wtlen measurirry high voltage 4 Do not apply over 1000V DC 700V AC to the meter 4 3 AC Yoltage lbasuremnt 4 3 1 Connect the Black ...

Page 6: ...revent damage to the internal circuit 3 Maxirun Voltage Drop under full scale 200 A 2A 300mV 20A 966pY 4 In case of neasuring Z0A continuous measurement over 15 ninutes may cause damage to the meter 5 I HEN MAKING CURRENT MEASURWENTS l ĄKE SURE fi AT 11 EMJLTIMETER IS CONNEMED IN SERIES WITH T E LOAD IN IIHICH THE nJRREMT IS TO BE MEASURED NEVER MNNECT THE MŁTIMErER AcRoss A voLTAoE sCIncE TO M SO...

Page 7: ...num value of the range selected 1 rłill be displayed for irńicating overload Se ect a higher range For a resistance of approximately 1 łrhmand above the neter may talte a few secorxls to stabilize This is normal for high resistance readings When the input is not loaded i e at open circuit the 1 will be displayed ihen checkrng in circuit resistance ensure that the circuit urder test has all power o...

Page 8: ...ent 5 4 7 t Connect terminal terminal the Black tesr lead to rhe COt j ard the Red test lead to the V Q 1 4 4 7 2 Set the function switch to the łł ff range ard connect the test leadg across thę diode under measurernent See Figure 4 Note 1 When the input is not loaded i e at open circuit only 1 on the left side of the LCD is displayed i ndicatjng overload 2 There is 1mA Current flow through the de...

Page 9: ...B itter Base arń Collector Leads lnsert the leads of the transistor into the comect holes in the socket on the front panel s e FiErre 4 9 16 4 9 3 The neter will read the approximate hrr vaLue at the test crcrxiition of base c urrent 10lA Vcr 2 8V n o t u s e 4 9 Transistor hFE Test 5 l lainternrrce Your Digital fultimeter is a precise eLectronic device Do not tanper with circuit To prevent electr...

Page 10: ...se should be replaced use only ZA 5 0V fast blow t te fuse which should be identical in physical size to the original or the spare fuse in the storage compartment inside of the meter 18 t Y 6 Specifications 6 1 General Characteristicg Max Display 1999 counts 3 X Diqit with automatic polarity j rdication t Input Im ance 10 l lchm Max Input furrent of AC 6 m 20A l ax15 mirutes Reading Time 2 3 readi...

Page 11: ...g i 3 d g t 10 0 p A l n A z0A 20uA 3 0 r o f r d q 7 d g t 10 m A 1O n A K E SISTANCE 2000 0 5 t o f r d g 3 d g t 0 1 0 ZKO 20K0 200K0 2M0 i 0 5 t o f r d g I d g t 1 0 1 0 Q I 0 0 Q l K 0 20tt0 t 1 0 x o f r d s 2 d q t I 0K0 20 IIARRAI IT l arrants this instrurcnt to be free from defects in materiaf ard worknanshipfor a period of one year Any instrunent fourń defective within one year froln th...

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