Magnum MS8268, Operator'S Instruction Manual

Page 1: ...LIGHT SELECT REL Hz Ω V V µA mA A hFE Hz VΩHz 1000V 600V CAT CATIII II OFF 10A hFE µAmA COM MAX 750V 1000V RESETTABLE FUSED 10A MAX FE h REL AUTO DC AC kMΩHz nμmFAV Multimeter Autorange MS8268 CAT III 600 V CAT II ...

Page 2: ...4 2 11 Duty Cycle 29 ...

Page 3: ...able for that reason requires that the transient withstand capability of the equipment is made known to the user 01 When using this Multimeter the user must observe all normal safety rules concerning Protection against the dangers of electric current Protection of the Multimeter against misuse For your own safety only use the test probes supplied with the instrument Before use Check that they are ...

Page 4: ...ircuits In TV repair work or when carrying out measurements on power switching circuits remember that high amplitude voltage pulses at the test points can damage the multimeter Use of a TV filter will attenuate any such pulses Use three 1 5V AAA batteries properly installed in the Meter s battery case to power the Meter 03 Replace the batteries as soon as the battery indicator E1I appears With a l...

Page 5: ...at some internal capacitors can retain a dangerous potential even after the instrument is switched off If any faults or abnormalities are observed take the instrument out of service and ensure that it cannot be used until it has been checked out If the meter is not going to be used for a long time take out the battery and do not store the meter in high temperature or high humidity environment 1 2 ...

Page 6: ...Toavoid false readings MO Mn Megohm 1x106 or 1 000 000 ohms which could lead to possible electric shock Hz Hertz The unit of frequency in cycles or personal injury replace the battery as Hz KHz second soon as the battery indicator appears MHz KHz Kilohertz 1x103 or 1000 hertz Indicates negative readings MHz Megahertz 1x106 or 1 000 000 hertz Indicator for ac voltage or current F Farad The unit of ...

Page 7: ...erminal Description A mA and and Continuity check Return terminal for all measurements Switches between de and ac SELECT µA current COM Receiving the black test lead or the com Power up Disables automatic power off plug of the special multi function socket Option feature Input for voltage resistance capacitance Any switch Press REL to enter and exit the 01 f frequency diode and continuity REL meas...

Page 8: ...zer will sound upon misconnection of the test leads in the mA or 1QA terminals to warn the user At the same time the lights at the V and COM terminals will flash to remind the user to plug in the test leads there At µA mA and hFE ranges 1 The red lights at the mA and COM terminals will be off after the test leads are plugged in 2 The buzzer will sound upon misconnection of the test leads in the V ...

Page 9: ...al ranging mode AUTO turns off Each presses of RANGE key increments the range When the highest range is reached the Meter wraps to the lowest range NOTE If you manually change the measurement range after entering the Data Hold modes the Meter exits this mode 2 To exit the manual ranging mode press and hold down RANGE key for two seconds The Meter returns to the autorange mode and AUTO is displayed...

Page 10: ...is suspected short the V terminal and the COM terminal and make sure the zero display 15 For better accuracy when measuring the de offset of an ac voltage measure the ac voltage first Note the ac voltage range then manually select a de voltage range equal to or higher than the ac range This improves the accuracy of the de measurement by ensuring that the input protection circuits are not activated...

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Page 12: ...e measurement takes about 1 second per range The Meter s capacitance ranges are 4 000nF 40 00nF 400 0nF 4 000µF 40 00µF and 200 0µF 19 To measure capacitance 1 Set the rotary switch to f range 2 Connect the black and red test leads to the COM and f terminals respectively or you can measure the capacitance by using the special Multi Function Socket 3 Connect the test leads to the capacitor being me...

Page 13: ...xpect the input signal may be distorted i I Distortion can cause multiple triggering of the frequency counter Selecting a higher voltage range might solve this problem by decreasing the sensitivity of the meter Also try selecting a de range which raises the trigger level In general the lowest frequency displayed is the correct one 3 2 8 Current measurement To avoid damage to the Meter or injury if...

Page 14: ...Coefficient 0 1 specified accuracy C 18 C or 28 C MAX Voltage between terminals and earth ground 750V AC rms or 1OOOV DC Fuse Protection µA and mA Resettable fuse 400mA 250V i 3 1OA F 10A 2500V 6 3x32 mm Sample Rate 3 times sec for digital data Display 3 3 4 digits LCD display Automatic indication of functions and symbols Range selection automatic and manual Over Range indication LCD will display ...

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Page 16: ...ts 5A 4 minutes maximum ON to ByAC Voltage range measure 10 minutes OFF Input Voltage range 1V 750Vac rms Input voltage 4 2 10AC CURRENT must be enlarged with increasing Range Resolution Accuracy frequency under measurement 400µA 0 1µA Frequency Response 1Hz 10kHz sine wave 4000µA 1µA Maximum input voltage 1000V de or 750V ac rms 1 5 of rdg 5 digits Input impedance 1OMO 40mA 0 01mA ByAC Current ra...

Page 17: ...4 2 11 DUTY CYCLE 5 95 0 1 2 0 2 ...

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