INSTRUCTION MANUAL MT715 AC TRMS OPEN JAW CLAMP METER
Contents Page no 1. lntroduction ............................................................................... 4 2. Safety .......................................................................................... 4 3. Description ................................................................................. 6 3.1. Meter Description ............................................................... 6 3.2. Symbols Used on LCD Display ............................................ 7 4. Specifications ......
1. lntroduction The MT715 is a hand held digital open jaw clamp meter. The instrument LCD adopts a negative display, rotary switch with backlight indication, which facilitates the user to operate the instrument under dark/dim conditions. The MT715 is idea for Industrial and domestic applications where high current measurement is required. 1.1. Measurements: • AC/DC Voltage • Low Input Impedance Test AC/DC Voltage • Resistance • Capacitance • Continuity • Diode • Non Contact Voltage 1.2.
2.2. Safety Notes • Do not exceed the maximum allowable input range of any function. • Do not apply voltage to meter when resistance function is selected. • Set the function switch OFF when the meter is not in use. • Remove the battery if meter is to be stored for longer than 60 days. 2.3. WARNINGS • Set function switch to the appropriate position before measuring. • When measuring volts do not switch to current/resistance modes. • Do not measure current on a circuit whose voltage exceeds 1000V.
3. Description 3.1.
3.2.
4. Specifications 4.1. Specifications Resolution Range Function 100mA 200.0A AC Current Over range protection: Maximum input 200A. Frequency Response: 50 to 60Hz Accuracy ±(% of reading+digits) ±(3% + 5 digits) Resolution Accuracy ±(% of reading+digits) Range 1mV ±(1.2% + 5 digits) AC True RMS Voltage 6.000V (Auto Ranging) 60.00V 10mV ±(1.2% + 2 digits) 600.0V 100mV ±(1.5% + 2 digits) 1000V 1V Input Impedance: 10MΩ; Low Input Impedance Test Voltage: ±3kΩ MAX 600V AC Accuracy Specified from +3.
Function Diode Continuity 7 Testing Condition Reading Test current of 1.5mA typical Forward voltage drop of Diode Open circuit voltage <3VDC typical Test current <0.35mA Buzzer makes a long sound, While resistance is less than (50Ω) Over Range Protection: 300V RMS. 4.2. General Specifications 7 Clamp Jaw Opening Display Continuity Check Diode Test 16mm approx. 6000 Counts Negative LCD Display Buzzer sounds at less than 50Ω Test current of 0.
5. Operation NOTES: Read and understand all WARNING and CAUTION statements in this operation manual prior to using this meter. Set the function select switch to the OFF position when the meter is not in use. 5.1. AC Current Measurements WARNING: Ensure that the test leads are disconnected from the meter before making current clamp measurements. 1. Set the Function switch to the AC Current. 2. Place the current fork around the middle of the test lead. 3. The clamp meter LCD will display the reading.
5.3. Low Z Voltage Measurements NOTES: Observe all safety precautions when working on live voltages. Do not connect to circuits that exceed 600V AC/DC when the meter is set to Low Z. Low Z is used when there is a suspicion of a "ghost" voltage. Ghost voltages are present when non-powered wires are in close proximity to wires powered by AC voltage. Capacitive coupling between wires make it appear that non-powered wires are connected to a real source of voltage.
5.6. Capacitance Measurements WARNING: To avoid electric shock, discharge the capacitor under test before measuring. 1. Set the function switch to the Ω CAP position. 2. lnsert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the V Ω CAP positive jack. 3. Use the MODE button to select CAP Measurements. 4. Touch the test probe tips across the part under test. 5. Read the capacitance value in the display. 6.
6. Button 6.1. MODE and Backlight Button • Press MODE and Backlight Button to select OHM/Diode/Continuity/CAP/ LoZ AC/DC Voltage. • Press the MODE and Backlight button for over 1 second to turn the button, Knob and Rotary light on. • Press again for over 1 second to turn the button, Knob and Rotary light off. 6.2. MAX/MIN Button • Press MAX/MIN Button the maximum and minimum values are measured.
8. Maintenance WARNING: To avoid electrical shock, disconnect the meter from any circuit, remove the test leads from the input terminals, and turn OFF the meter before opening the case. Do not operate the meter with an open case. Cleaning and Storage Periodically wipe the case with a damp cloth and mild detergent; do not use abrasives or solvents. If the meter is not to be used for 60 days or more, remove the battery and store it separately. Battery Replacement 1.
MAJOR TECH (PTY) LTD South Africa Australia www.major-tech.com www.majortech.com.au sales@major-tech.com info@majortech.com.
