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Major tech MT1880IV User Manual

Industrial multimeter
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  • Page 2 Introduction This meter measures VGB ， AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency (electrical & electronic), Diode Test, and Continuity plus. Proper use and care of this meter will provide many years of reliable service. Safety This symbol adjacent to another symbol, terminal or operating device indicates that the operator must refer to an explanation in the Operating Instructions to avoid personal injury or damage to...

  • Page 3: Overvoltage Category

    PER IEC1010 OVERVOLTAGE INSTALLATION CATEGORY OVERVOLTAGE CATEGORY I Equipment of OVERVOLTAGE CATEGORY I is equipment for connection to circuits in which measures are taken to limit the transient overvoltages to an appropriate low level. Note – Examples include protected electronic circuits. OVERVOLTAGE CATEGORY II Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be supplied from the fixed installation.

  • Page 4: Safety Instructions

    SAFETY INSTRUCTIONS This meter has been designed for safe use, but must be operated with caution. The rules listed below must be carefully followed for safe operation. NEVER apply voltage or current to the meter that exceeds the specified maximum: Input Protection Limits Function Maximum Input...
  • Page 5 NEVER operate the meter unless the back cover and the battery and fuse covers are in place and fastened securely. If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.
  • Page 6 Controls and Jacks 4,000 count LCD display RANGE button Backlight and Hold button 4. MODE button Function switch mA, µA and 10A input jacks COM input jack Positive input jack 9. VGB 10. REL button 11. MAX/MIN button Note: Tilt stand and battery compartment are on rear of unit.
  • Page 7 Symbols and Annunciators •))) Continuity Diode test Battery status ) (capacitance)  nano (10 µ micro (10 ) (amps, cap) milli (10 ) (volts, amps) Amps kilo (10 ) (ohms) Farads (capacitance) mega (10 ) (ohms)  Ohms Hertz (frequency) Volts Relative Alternating current...

  • Page 8: Dc Voltage Measurements

    Operating Instructions WARNING: Risk of electrocution. High-voltage circuits, both AC and DC, are very dangerous and should be measured with great care. 1. ALWAYS turn the function switch to the OFF position when the meter is not in use. 2. If “OL” appears in the display during a measurement, the value exceeds the range you have selected.

  • Page 9: Ac Voltage Measurements

    VGB （VAC ONLY） “ Ghost” voltage means voltage that appears on a conductor that is not actually energized. This often occurs on spare conductors in a conduit or cable. The spare conductors are very close to the live conductors. The capacitance between the live and spare conductors causes the “ghost”...

  • Page 10: Ac/Dc Current Measurements

    AC/DC CURRENT MEASUREMENTS CAUTION: Do not make 10A current measurements for longer than 30 seconds. Exceeding 30 seconds may cause damage to the meter and/or the test leads. 1. Insert the black test lead banana plug into the negative COM jack. 2.

  • Page 11: Resistance Measurements

    RESISTANCE MEASUREMENTS WARNING: To avoid electric shock, disconnect power to the unit under test and discharge all capacitors before taking any resistance measurements. Remove the batteries and unplug the line cords. 1. Set the function switch to the ΩCAP position. 2.

  • Page 12: Capacitance Measurements

    DIODE TEST 1. Set the function switch to the Ω CAP position. 2. Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive V jack. 3. Press the MODE button to indicate“ “and “V”...

  • Page 13: Frequency Measurement

    FREQUENCY MEASUREMENT Set the function switch to the Hz/Duty position. Insert the black test lead banana plug into the negative ( - ) jack (COM) and the red test lead banana plug into the positive ( + ) jack ( F ). Touch the test probe tips to the circuit under test.

  • Page 14: Range Button

    RANGE BUTTON When the meter is first turned on, it automatically goes into Auto Ranging. This automatically selects the best range for the measurements being made and is generally the best mode for most measurements. For measurement situations requiring that a range be manually selected, perform the following: 1.

  • Page 15: Low Battery Indication

    LOW BATTERY INDICATION When the icon appears alone in the display the battery should be replaced. Maintenance WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the back cover or the battery or fuse covers. WARNING: To avoid electric shock, do not operate your meter until the battery and fuse covers are in place and fastened securely.

  • Page 16: Battery Installation

    BATTERY INSTALLATION WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the battery cover. 1. Turn power off and disconnect the test leads from the meter. 2. Open the rear battery cover by removing two screws (B) using a Phillips head screwdriver.
  • Page 17 Specifications DC Voltage (VDC) Range Resolution Accuracy 400.0mV 0.1mV +1.0% of rdg + 4 digits 4.000V 40.00V 10mV 400.0V 100mV 1000V +1.2% of rdg + 4 digits Input Impedance: 10MΩ. Maximum Input: 1000V dc or 750V ac rms. AC Voltage (VAC) Range Resolution Accuracy...
  • Page 18 1000V +1.2% of rdg + 4 digits Input Impedance: 10MΩ. Maximum Input: 1000V dc or 750V ac rms. AC Voltage (VDC-AC) Range Resol Accuracy ution 0.15V-4.000V +1.0%of rdg + 6digits 40.00V 10mV 400.0V 100m 750V +1.2%of rdg + digits All AC voltage ranges are specified from 5% of range to 100% of range Input Impedance: 10MΩ.
  • Page 19 AC Current (Auto-ranging) Range Resolution Accuracy 400.0uA 0.1uA +1.2% of rdg + 6 digits 4000uA 40.00mA 10uA 400.0mA 100uA +1.5% of rdg + 6digits 10mA +2.0% of rdg + 6 digits All AC Current ranges are specified from 5% of range to 100% of range Overload Protection: FF500mA/1000V and F10A/1000V Fuse.
  • Page 20 Frequency (Auto-ranging) Range Resolution Accuracy 9.999Hz 0.001Hz +1.2% of rdg + 3 dgts 99.99 Hz 0.01Hz 999.9 Hz 0.1Hz 9.999KHz 1 Hz 99.99kHz 10Hz 999.9kHz 100Hz 9.999MHz 1kHz +1.5% of rdg + 4 dgts Sensitivity: >0.5V RMS while ≤ 1MHz ; Sensitivity: >3V RMS while >1MHz ;...

  • Page 21: Non-Contact Voltage (Ncv)

    Store capacitance 2000 Enclosure Double molded, waterproof Shock (Drop Test) 6.5 feet (2 meters) Diode Test Test current of 0.9mA maximum, open circuit voltage 2V DC typical Continuity Check Audible signal will sound if the resistance is less than 30 (approx.), test current <0.3mA >10MΩ...
  • Page 22 Polarity Automatic (no indication for positive); Minus (-) sign for negative Measurement Rate 2 times per second, nominal “ ” is displayed if battery voltage Low Battery Indication drops below operating voltage Battery One 9 volt (NEDA 1604) battery Fuses mA, µA ranges;...

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