USER MANUAL 600A AC Clamp Meter + NCV Model MA610 Additional User Manual Translations available at www.extech.
EXTECH INSTRUMENTS Introduction Thank you for selecting the Extech MA610 Clamp Meter. This meter measures AC Current, AC/DC Voltage, Resistance, Capacitance, Frequency, Diode Test, Duty Cycle, Continuity and NonContact Voltage detection. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit our website (www.extech.
EXTECH INSTRUMENTS Do not use the meter in the presence of explosive gas or vapor. To reduce risk of fire or electric shock, do not use the meter if it is wet and do not expose the meter to moisture. Individual protective equipment should be used if HAZARDOUS LIVE parts in the installation where measurements are to be carried out could be accessible. CAUTIONS CAUTIONS identify conditions and actions that could cause DAMAGE to the meter or equipment under test.
EXTECH INSTRUMENTS PER IEC1010 OVERVOLTAGE INSTALLATION CATEGORY OVERVOLTAGE CATEGORY I Equipment of OVERVOLT AGE CATEGORY I is equipment for connection to circuits in which measures are taken to limit the transient over-voltages 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.
EXTECH INSTRUMENTS Display Description Relative mode icon Units of Frequency AC Alternating Current Units of Voltage DC Direct Current Units of Capacitance NCV Negative readings Non-contact Detect AC Voltage Diode mode Automatic range mode Continuity mode Low Battery icon Display Hold Duty Cycle Units of resistance Measurement overload Control Buttons Mode button: Short press to step through the mode options for the selected measurement function HOLD button: Short press to freeze/unfre
EXTECH INSTRUMENTS Operation CAUTION: Read and understand all of the Safety statements listed in the safety section of this manual prior to use. Powering the Meter 1. Move the function switch to any position to power the meter. Check the batteries if the unit fails to power ON. 2. Move the function switch to the OFF position to remove power to the meter. 3. The meter has an Auto Power OFF feature (APO) where the meter switches OFF after 30 minutes of inactivity.
EXTECH INSTRUMENTS AC Current Measurements WARNING: Do not handle the meter above the finger/hand guard barrier. CAUTION: Observe CAT III 600V with respect to Earth Ground for the Jaw. 1. Rotate the function switch to the desired AC Current position (4A, 40A, or 600A). Start with the highest range setting (600A) and step down to lower ranges as needed, especially for signals that are of an unknown range. 2. The A and the AC symbols will appear on the display indicating AC Amperes (Amps). 3.
EXTECH INSTRUMENTS AC and DC Voltage Measurements WARNING: Do not apply > 600VAC/DC between the meter terminals and ground. CAUTION: When connecting the test leads to the circuit or device under test, connect the black lead before the red lead; when removing the test leads, remove the red lead before the black lead. 1. Set the function select switch to the Voltage position . 2. Use the M (Mode) button to select AC or DC Voltage. 3.
EXTECH INSTRUMENTS Resistance Measurements WARNING: Please remove power to the circuit under test and discharge all capacitors before taking resistance or continuity measurements. The meter will display OL if the circuit under test is an open circuit or if the measurement exceeds the maximum range of the meter. Do not input a voltage >30V AC or DC. 1. 2. 3. 4. 5. 6. Turn the function switch to the Resistance Ω position. Use the M (mode) button to select the ohm Ω display symbol.
EXTECH INSTRUMENTS Continuity Measurements WARNING: Please remove power to the circuit under test and discharge all capacitors before taking resistance or continuity measurements. The meter will display OL if the circuit under test is an open circuit or if the measurement exceeds the maximum range of the meter. Do not input a voltage >30V AC or DC. 1. Turn the function switch to the Continuity 2. Use the M (mode) button to select the continuity display 3.
EXTECH INSTRUMENTS Frequency Measurements WARNING: Do not input voltages > 30Vrms when measuring frequency. Turn the function switch to the Hz position. 1. 2. 3. 4. Insert the black test lead banana plug into the negative (COM) jack. Insert the red test lead banana plug into the red jack. See Fig. 6. Touch the test probe tips across the circuit or component. Read the Frequency measurement on the meter display. Use the Hz% button to view Duty Cycle %. Fig. 6 – Frequency Measurements 11 MA610-en-GB_V1.
EXTECH INSTRUMENTS Capacitance Measurements WARNING: Please remove power to the circuit under test and discharge all capacitors before taking capacitance measurements. 1. 2. 3. 4. 5. 6. Turn the function switch to the position. Use the M (mode) button to select the capacitor function if necessary. Insert the black test lead banana plug into the negative (COM) jack. Insert the red test lead banana plug into the red jack. See Fig. 7. Touch the test probe tips across the circuit or component.
EXTECH INSTRUMENTS Diode Test WARNING: Please remove power to the circuit under test and discharge all capacitors before taking diode measurements. Do not input voltages > 30V DC or AC to the meter. 1. Turn the function switch to the position. 2. Use the M button to select the diode icon 3. Insert the black test lead banana plug into the negative (COM) jack and the red test lead banana plug into the red (V) jack. See Fig. 8. 4.
EXTECH INSTRUMENTS Non-Contact Voltage-Detector (NCV) The area at the top of the clamp jaws is used for sensing AC voltage. When the electrical field is > 100V and the distance is < 10mm from the tip of the meter’s clamp jaw, the beeper will sound and the red LED lamp will light. The NCV lamp flashes at the same rate as the beeper. The higher the field strength, the faster the beep rate and lamp flashing.
EXTECH INSTRUMENTS Maintenance WARNING: To avoid electrical shock, disconnect the meter from any circuit and turn OFF the meter before opening the case. Do not operate 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 batteries and store them separately. Battery Replacement 1. Remove the Phillips head screw at the back (near center) of the meter.
EXTECH INSTRUMENTS Specifications Electrical Specifications Accuracy is given as ± (% of reading + least significant digits) at 23C ±5C with relative humidity ≤ 75%. Accuracy is specified for a period of one year after calibration. Temperature Coefficient is 0.1 x specified accuracy / C, < 18C (64.5F), > 28C (82.4F) Function AC Current Range Resolution Accuracy (reading) 4.000 A 0.001 A ± (2.5% + 30 digits) 40.00 A 0.01 A ± (2.5% + 5 digits) 600 A 1A ± (2.0% + 9 digits) 4.000V 0.
EXTECH INSTRUMENTS Capacitance Frequency (Hz) 50.00nF 0.01 nF ± (4.0% + 25 digits) 500.0nF 0.1 nF 5.000 µF 0.001 µF 50.00 µF 0.01 µF 100.0 µF 0.1 µF 10Hz~1MHz 0.01Hz~1kHz 600V AC/DC ± (4.0% + 5 digits) ± (0.1% + 4 digits) 600V AC/DC Sensitivity: (10Hz~1MHz): 200mVrms ≤input amplitude ≤20Vrms Duty Cycle (%) 0.1 ~ 99.9% 0.1% 600V AC/DC ± (2.
EXTECH INSTRUMENTS General Specifications Display Polarity LCD 4000-count multi-function backlit LCD Automatic display of positive and negative polarity Over-range indication Conversion rate Clamp Sensor Type Test position error “OL” or “-OL” is displayed 3 updates per second Coil induction Additional error of ±1.
