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Axio MET AX-MS8250 User Manual

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DIGITALMULTIMETER
USER'S MANUAL
C
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Summary of Contents for Axio MET AX-MS8250

  • Page 1 DIGITALMULTIMETER USER’S MANUAL...

  • Page 2: Table Of Contents

    CONTENTS 1. GENERAL INSTRUCTIONS…………………………… 1 2. DESCRIPTION ………………………………………… . 4 3. TECHNICAL SPECIFICATIONS ………………………. 7 4. OPERATING INSTRUCTION …………………………..13 5. MAINTENANCE ………………………………………….18...

  • Page 3: General Instructions

    1. GENERAL INSTRUCTIONS This multimeter has been designed according to IEC1010 concerning electronic measuring instruments with an overvoltage category (CAT II 1000V, CAT III 600V) and pollution 2. To get the best service from this instrument, read carefully this user's manual and respect the detailed safety precautions.
  • Page 4 * When the range of the value to be measured is unknown, check that the range initially set on the multimeter is the highest position. * To avoid damages to the instrument, do not exceed the maximum limits of the input values. * Caution when working with voltages above 60Vdc or 30Vac rms.
  • Page 5 1.1.4 Instructions * Before opening up the instrument, always disconnect from all sources of electric current and make sure you are not charged with static electricity, which may destroy internal components. * Any adjustment, maintenance or repair work carried out on the meter while it is live should be carried out only by appropriately qualified personnel, after having taken into account the instructions in this present manual.

  • Page 6: Description

    2. DESCRIPTION 2.1 Instrument Familiarization EF-DETECT Area LCD display Keypad Back light key Rotary switch Terminals...
  • Page 7 2.2 LCD Display 3 3/4 digit, 18 mm high LCD. 2.3 ON/OFF key ¥ This key is used to turn the meter on or off 2.4 FUNC. key ¥ Selection of the dc (default) or ac mode and the (default) or mode: press on the key, the beep sounds briefly.
  • Page 8 ¥ This key is operative in V and Ω ranges. 2.6 HOLD key ¥ Fixes the display on the current value and memories it (short press). ¥ A second short press returns the meter to normal mode. 2.7 REL key ¥...

  • Page 9: Technical Specifications

    reference. ¥ uAmA ： Terminal receiving the red lead for uAmA measurement.. ¥ 10A ： Terminal receiving the red lead for 10A measurement. 3. TECHNICAL SPECIFICATIONS 3.1 General specifications ¥ Environment conditions: 600V CAT.III and 1000V CAT.Ⅱ Pollution degree: 2 Altitude <...
  • Page 10 ¥ Over Range indication: LCD will display "OL". ¥ Low battery indication: The " " is displayed when the battery is under the proper operation range. − ¥ Polarity indication: " " displayed automatically. ¥ Auto power off: If there is no key or dial operation for 15 minutes, the meter will power itself off to save battery consumption.
  • Page 11 10mV 400V 100mV ±(1.0% of rdg +3 digits) 1000V Input impedance: 10MΩ Maximum input voltage: 1000V dc or 750V ac rms. 3.2.3 AC Voltage Range Resolution Accuracy ±（1.0% of rdg +3 digits） 10mV 400V 100mV ±（1.2% of rdg +3 digits） 750V Input impedance: 10MΩ...
  • Page 12 Maximum input current: 400mA dc or 400mA ac rms for µA and mA ranges. 10A dc or 10A ac rms for 10A ranges. 3.2.5 AC Current Range Resolution Accuracy 4000uA 1µA ±（1.5% of rdg + 5 digits） 400mA 0.1mA ±（3.0% of rdg + 8 digits） 10mA Overload protection: F 500mA/250V fuse for uAmA range.
  • Page 13 Open circuit voltage: approx. 0.25V Overload protection: 250V dc or 250V ac rms. 3.2.7 Diode and Audible continuity Test Range description Test Condition Open circuit voltage: Built-in buzzer approximate 0.5V sounds if resistance is less than approx.40Ω Forward Current: Display read approx.
  • Page 14 400nF 100pF 4µF 40µF 10nF 200µF 100nF Overload protection: 250V dc or 250V ac rms.。 3.2.10 Frequency Range Resolution Accuracy 9.999Hz 0.001 Hz 99.99Hz 0.01 Hz 999.9Hz 0.1 Hz ±（0.1% of rdg +1 digit） 9.999kHz 99.99kHz 10Hz 199.9kHz 100Hz >200kHz 100Hz Unspecified @ >200kHz Overload protection: 250V dc or 250V ac rms.

  • Page 15: Operating Instruction

    4. OPERATING INSTRUCTION 4.1 No contact AC Voltage detector There is no auto power off function. And the backlight is’t operative in this range. ¥ Set rotary switch to the range. Then the green LED of the LED indicator is bright. ¥...
  • Page 16 terminals respectively ¥ Connect the test leads to the circuit being measured ¥ Read the displayed value. The polarity of red test lead connection will be indicated when making a DC measurement. 4.3 Resistance measurement To avoid electrical shock and/or damage to the instrument, disconnect circuit...
  • Page 17 4.4 Continuity measurement To avoid electrical shock and/or damage to the instrument, disconnect circuit power discharge all high-voltage capacitors before 。 。 。 。 testing for Continuity. ¥ Set the rotary switch to ) range. ¥ Press "FUNC." key to select measuring mode.
  • Page 18 4.6 Capacitance measurement To avoid electrical shock and/or damage to the instrument, disconnect circuit power discharge all high-voltage capacitors before measuring capacitance. Use the dc voltage function confirm that capacitor discharged. ¥ Set the rotary switch to range. ¥ Connect the black and red test leads to the COM and terminals respectively.
  • Page 19 Note: ¥ Reading is possible at input voltages above 3V rms, but the accuracy is not guaranteed. ¥ In noisy environment, it is preferable to use shield cable for measuring small signal. 4.8 Temperature measurement To avoid electrical shock, do not connect the thermocouples with the electriferous circuit.
  • Page 20 For a maximum of 10A, move the red test lead to the 10A terminal. ¥ Connect test leads in series with the load in which the current is to be measured. ¥ Read the displayed value. The polarity of red test lead connection will be indicated when making a DC measurement.

  • Page 21: Maintenance

    5. MAINTENANCE 5.1 General Maintenance To avoid electrical shock or damage to the meter, do not get water inside the case. Remove the test leads and any input signals before opening the 。 case Periodically wipe the case with a damp cloth and mild detergent.
  • Page 22 ¥ Use a screwdriver to unscrew the three screws secured on the back cover and the battery cover , then unscrew the two screws under the battery cover. ¥ Separate the back cover from the top case. ¥ Replace the fuse only with specified ratings: F 500mA/250V ∅5×20.