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MS8239C

User's Manual

Digital Multimeter

600V CAT III

IEC61010-1

10A

COM

10A

FUSED

400mA

FUSED

600V MAX

MS8239C

kHz

kM

mVA

AUTO

MAX

DC

AC

Autorange

DIGITAL MULTIMETER

FUNC

HOLD

Hz%

Hz%

mA

A

V

F

C

mAµAV
°C°FHz

Ω

1
2
3
...
»

Summary of Contents for MS8239C

Page 1: ...8239C User s Manual Digital Multimeter 600V CAT III IEC61010 1 10A COM 10A FUSED 400mA FUSED 600V MAX MS8239C kHz kM mVA AUTO MAX DC AC Autorange DIGITAL MULTIMETER FUNC HOLD Hz Hz mA A V F C mAµAV C FHzΩ ...

Page 2: ...easurement 8 9 Continuity Measurement 12 Capacitance Measurement 11 General Specifications 14 Accuracy Indicators 15 DC Voltage 15 AC Voltage 16 Resistance 16 Capacitance 17 Diode Continuity Measurement 17 DC Current 18 AC Current 18 Maintenance 19 General Maintenance 19 Replace Battery 20 Replace Fuse 21 Keys Operation 7 Automatic Power Off Function 7 Diode Test 12 Frequency Duty Ratio Measuremen...

Page 3: ...f this manual Otherwise the warranty for the meter may become invalid The warnings in the user manual are used to remind users of possible danger or dangerous action The notes in the user manual are used to remind users of possible meter damage or condition or action of measured object Check the case before using the meter Don t use the meter with damaged case Check to see if the case is cracked o...

Page 4: ...asuring range equal to or greater than the AC measuring range Before measuring current please check the meter fuse shut off power to the circuit to be tested then connect the meter and energize the circuit When opening the case or part of the case turn the meter off When the battery low voltage indicator becomes lit replace the battery at once A low battery will cause meter reading errors and may ...

Page 5: ...e indicator 5 Diode measurement function indicator 6 Continuity measurement indicator 7 Data hold indicator 8 Measurement display value 9 Battery low voltage indicator 10 Measurement unit 1 LCD display 2 Backlight key 3 Frequency duty ratio key 4 Function selection key 5 Data hold key 6 Function selection switch 7 Positive input jack of 10A connected with the red test probe kHz kM mVA AUTO MAX DC ...

Page 6: ...put jack respectively Measure the voltage of circuit to be tested with other ends of test probes connected with the circuit to be tested in parallel Read the measured value from LCD display When measuring DC voltage the display will simultaneously show the voltage polarity which is connected with red test probe 1 2 Automatic Power Off Function In the measurement process if there is no activity by ...

Page 7: ... turn off the power to the circuit to be tested If needed press FUNC key to select resistance measurement function 1 2 Connect black and red test probe to COM input jack and VΩmA input jack respectively Measure the resistance of circuit to be tested with other ends of test probes Read the resistance value from LCD display If it is overload OL will display on the LCD display 3 4 5 Here are some tip...

Page 8: ...e power to the circuit to be measured discharge all capacitors Warning Continuity Measurement Rotate function selection switch to continuity measurement position and turn off the power to the circuit to be tested If needed press FUNC key to select continuity measurement function Connect black and red test probe to COM input jack and VΩmA input jack respectively Measure the circuit to be tested wit...

Page 9: ...uracy C 18 C or 28 C The maximum allowable voltage between measurement end and ground 600V DC or 600V AC RMS General Specifications 4 When measuring diodes to avoid injury or meter damage turn off the power to the circuit and discharge all capacitors Warning The meter will display the diode s forward bias voltage value If the test probe polarity is reversed the meter will display OL which distingu...

Page 10: ...nty Reference conditions environmental temperature is from 18 C 28 C relative humidity is not more than 80 Fuse protection grade mA fuse F400mA 500V grade 10A fuse F10A 500V Sampling rate about 3 times s Display 3 3 4 bits of digit LCD display Over range indication LCD will show OL Low battery indication When the battery voltage is lower than the normal operating voltage will display on the LCD di...

Page 11: ... 1µA 10A Measuring range 1 2 of reading 5 digits Overload protection grade mA Fuse F400mA 600V protection grade 10A Fuse F10A 500V protection Frequency response 40Hz 400Hz sine wave RMS average response 2 5 of reading 10digits 0 01µA 0 1µA 0 01A 400mA 40mA 4000µA 1V Display approximate diode forward voltage drop value Diode and Continuity Measurement Measuring range Function Accuracy Resolution 0 ...

Page 12: ... making another measurement 20 Temperature 3 0 of reading 3 digits Resolution Accuracy 20 1000 C 1 C 1 F Measuring range 4 1832 F Overload Protection the fuse F400mA 600V protection Maintenance This section provides basic maintenance information including instructions for the replacement of fuse and battery Do not try to repair the meter unless you are an experienced maintenance person with the re...

Page 13: ...the test probe from the measurement circuit Warning To replace fuse Turn off the power to the meter Remove all test probes from the input jacks Loosen screws on the back cover with screwdriver Remove the back cover Remove the blown fuse Replace with new fuse with the same type Put the back cover and tighten the screws 1 2 3 4 5 6 7 22 ...

Page 14: ...23 HYS007240 ...

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