Mastech MS8250D User Manual Download | Manualshive

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MS8250D

DUAL DISPLAY
DIGITAL MULTIMETER
User’s Manual

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Summary of Contents for MS8250D

Page 1: ...MS8250D DUAL DISPLAY DIGITAL MULTIMETER User s Manual ...

Page 2: ...sing the Meter 1 2 1 Always set the meter to the proper function and range first 1 2 2 Never exceed protection limits indicated for each measurement 1 2 3 Keep fingers behind the probe barriers while measuring 1 2 4 Always be careful when working with voltages above 60V DC or 30V AC RMS 1 2 5 Never measure voltages that might exceed 600V DC AC above earth ground 1 2 6 In manual range if the circui...

Page 3: ...urrent AC DC voltage Frequency Capacitance Resistance Continuity Duty Ratio Diode Testing and a USB adapter for recording readings on a PC This Meter is easy to use even with one hand s uitable for professional users or amateurs and ideal for school or home use Both auto and manual range Display hold True RMS for AC voltage current measurements Relative measurement Maximum measurement Minimum meas...

Page 4: ...s REL display relative measurement MAX MIN switch between max min measurement display turn on off backlight OFF Power off position input jack for voltage resistance capacitance diode continuity frequency and duty cycle measurement common terminal input jack for current measurement 660mA input jack for current measurement 10A COM μAmA 10A V Hz 2 3 LCD display 1 2 4 5 6 3 7 ...

Page 5: ...ons 3 1 1 Auto and manual range 3 1 2 Full range overload protection 3 1 3 Max voltage between terminal and ground 600V DC or AC rms 3 1 4 Operating altitude 2000m max 3 1 5 Display 6600 count LCD 3 1 6 Polarity indication automatically displays 3 1 7 Over range indication OL or OL 3 1 8 Sample rate approx 0 4s analog bar graph approx 0 04s except for current measurement approx 1s bar graph 0 1s 3...

Page 6: ...ading 5 digits of Range Input impedance 10M Overload protection 660mV range 250V DC or AC rms 6 6V 1000V ranges 1000V DC or 1000V AC rms Max input voltage 1000V DC Ω 0 1V 1000V 3 2 3 AC Voltage Resolution 0 1mV Accuracy 1 5 reading 5 digits 660mV 0 001V 0 01V 0 1V 6 6V 66V 600V 1 2 reading 5 digits Range 1 5 reading 5 digits Input impedance 10MΩ Overload protection 660mV range 250V DC or AC rms 6 ...

Page 7: ...he resistance of circuit to be measured is less than 30Ω the meter s built in buzzer will sound 0 1Ω Open circuit voltage is about 1 2V Overload protection 250V DC or AC RMS 3 2 8 Frequency 3 2 8 1 In V mode Resolution Accuracy 66Hz 1 5 reading 5 digits Range 660Hz 10kHz 0 01Hz 0 1Hz 0 001kHz 0 01kHz 6 6kHz Frequency range 10Hz 10kHz Input voltage range 0 2V AC rms as measured frequency increases ...

Page 8: ...ou want to keep the reading on the display press HOLD and the reading will be held 4 1 2 Press HOLD again to release the hold 4 2 Manual Range 4 2 1 In voltage current resistance capacitance and frequency modes the default range is auto 4 2 2 Press RANGE to switch to manual range Each press of the button increases the range and returns to the lowest range when pressed in the largest range 4 2 3 Ho...

Page 9: ...the object to be tested If the sensor detects voltage greater than 110VAC rms the NCV indicator will flash and the meter will beep Note 1 Even without indication voltage may still exist Do not solely rely on NCV detection to determine in voltage exists Detection may be affected by socket design insulation thickness or other factors 2 NCV indicator may go off when measuring voltage due to the prese...

Page 10: ...z 600kHz 6MHz 60MHz Measuring Frequency 4 15 1 Move the rotary switch to the Hz position 4 15 2 Connect the red test lead to the Hz jack and the black lead to the COM jack 4 15 3 Connect the leads across the circuit under test 4 15 4 The measured frequency will be displayed 4 15 5 Press FUNC to switch to duty cycle 4 15 6 Repeat steps 2 4 to measure duty cycle 4 16 DC AC Current Current ranges 660...

Page 11: ...ng the Battery Remove test leads from any circuit before opening battery cover to avoid electric shock injury Warning 5 1 1 Note If the symbol appears it indicated the battery needs to be replaced 5 1 2 Loosen the screw and remove battery cover 5 1 3 Replace the used battery with a new one 5 1 4 Replace the battery cover and tighten screw Pay attention to the polarity of the battery to avoid damag...

Page 12: ...25 00 05 0000 6 Accessories Test leads Manual Battery 9V 6F22 CD ROM disc 1PC 1PC 1PC 1PC 1PC USB interface cable USB interface 5 4 3 2 1 ...

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