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MS8251A

REL MAX MIN

%

AUTO

kHz

nmF

Hz

kM

C  F

mVA

0

10

20

30

40

50

60

66

MS8251A

DIGITAL MULTIMETER

OPERATION MANUAL

CAT.III

1000 V

CAT.I V

600 V

Summary of Contents for MS8251A

Page 1: ...MS8251A REL MAX MIN AUTO kHz nmF Hz kM C F mVA 0 10 20 30 40 50 60 66 MS8251A DIGITAL MULTIMETER OPERATION MANUAL CAT III 1000 V CAT I V 600 V ...

Page 2: ...ry switch to the required function and range to be measured When using the CAT Ⅳ environment if the measuring voltage between terminals and earth ground exceeds 600V CAT III environments or voltage measurement between the terminal and the earth more than 1000V do not measure voltage Always be careful when working with voltages above 60V DC or 30V AC RMS Keep fingers behind the probe barriers while...

Page 3: ... test frequency and duty cycle Auto and manual range Auto power off Max measurement Min measurement Relative measurement Reading Hold function Average commutation Simultaneously display frequency during AC voltage current measurements Non contact voltage test Meter complies with European Community EU standards Earth Ground 2 1 Components 1 2 3 4 Non contact voltage detection indicator LCD screen F...

Page 4: ...n on off backlight EMP position thermocouple temperature measurement turn off meter Temp V Hz jack voltage current resistance capacitance diode continuity frequency duty cycle temperature input terminal jack common input terminal µAmA jack current measurements 600mA 10A jack current measurements 600mA to 10A 2 3 LCD display REL MAX MIN AUTO kHz nmF Hz kM C F mVA 0 10 20 30 40 50 60 66 2 3 4 5 6 1 ...

Page 5: ...surement environment for 1000VDC or AC RMS 3 1 4 Maximum working height 2000m 3 1 4 Maximum working height 2000m 3 1 5 Display LCD 3 1 6 Maximum display value 6599 3 1 7 Polarity indication indicates negativepolarity 3 1 8 Overload indication 0L or 0L 3 1 9 Sampling frequency 0 4s digital display 0 04s bar graph For current readings 1s digital display 0 1s bar graph 3 1 10 Units display functions ...

Page 6: ...gits 660mV 0 001V 0 01V 0 1V 1V 6 6V 66V 660V 1000V 0 5 reading 5 digits of Resolution Accuracy range 0 8 reading 3 digits of 3 2 4 AC Voltage Frequency Range 40 60Hz 40 400Hz 40 400Hz Input impedance 10MΩ Overload protection 660mV range 250V DC or AC RMS 6 6V 1000V range 1000V DC AC RMS Maximum input voltage 1000V AC RMS Response Average calibrated in rms of sine wave 0 1mV 1 5 reading 5 digits o...

Page 7: ... 1 0V Overload protection 250V DC AC rms If measured resistance is less than 50Ω a buzzer will sound 0 1Ω Resolution Function range Range 10Hz 10kHz Input Voltage 0 2V AC Input voltage should increase along with the frequency 3 2 9 Frequency 3 2 9 1 Frequency V position 66Hz 1 5 reading 5 digits 660Hz 6 6kHz 10kHz 0 01Hz 0 1Hz 0 001kHz 0 01kHz Resolution Accuracy range 66Hz 1 5 reading 5 digits 66...

Page 8: ... 3 2 12 Temperature 4 Using the Meter 4 1 Data Hold 4 2 1 Note In voltage current resistance and capacitance modes the default range is AUTO 4 2 2 Press RANGE to enter manual ranging Each press switches to a higher range Pressing the button at the highest range will return to the lowest range 4 2 3 Hold RANGE to return to AUTO 4 2 4 Pressing RANGE in Max Min mode will return the meter to normal re...

Page 9: ...itch between C and F 4 6 1 Press to turn on backlight Press again to turn off Note 1 Even though there is no indication voltage may still exist Do not rely solely on NCV detector to determine the presence of voltage in a wire The measurement may be affected by the design of the outlet type of insulation and other external factors 2 The voltage sensing indicator may turn on when a voltage is fed to...

Page 10: ... 3 Connect the test leads to the circuit 4 14 4 The measured frequency and duty cycle will be displayed simultaneously 4 15 Current 4 15 1 Remove power to the circuit and discharge all capacitance 4 15 2 Move the rotary switch to the appropriate position µA mA or A 4 15 3 Connect the black test lead to the COM jack If the current to be measured is 600mA connect the red test lead to the µAmA jack I...

Page 11: ...ical or compatible leads lead spec 1000V 10A Replace test leads if leads become worn 6 Accessories Warning 1 Test Leads 1 pair 2 Manual 1 pc 3 Battery 9V 6F22 4 multifunctional test socket 1pc 5 electromagnetic pendant 1pc 6 K type temperature probe 1pc 1 pc 00 05 3589 ...

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