Extech MA250 Data Sheet

Specifications subject to change without notice.
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6/22/09 - R1

Integrated Non-Contact Voltage Detector

To quickly check for the presence of live wires before testing plus

20A and 200A current ranges

200A AC Clamp Meter + NCV

Ordering Information

MA250 ........................200A AC Clamp Meter + NCV

MA250-NIST................MA250 with NIST Certificate

Features:

• Built-in non-contact Voltage detector with LED alert

• 1.2" (30mm) jaw size for conductors up to 500MCM

• 4000 count, backlit LCD display

• Multimeter functions include AC/DC Voltage, Resistance,

Capacitance, Frequency, Temperature, Duty Cycle, Diode,
and Continuity

• Relative Mode for Capacitance Zero, and Offset Adjustment

• Data Hold and MIN/MAX

• Auto Power Off

• Complete with test leads, temperature probe (-22 to 572˚F/

-30 to 300˚C), two AAA batteries, and carrying case

Built-in non-contact Voltage detector with LED alert

Compact size allows measurements in tight locations

Specifications Range Max. Resolution Basic Accuracy

(% readings+digits)

Display counts 4000
AC Current 20.00A, 200.0A 0.01A ±(2.5% + 8d)
AC Voltage 4.000V, 40.00V, 400.0V, 600V 0.001V ±(1.8% + 8d)
DC Voltage 400.0mV, 4.000V, 40.00V, 400.0V, 600V 0.1mV ±(0.8% + 2d)
Resistance 400.0Ω, 4.000kΩ, 40.00kΩ, 400.0kΩ,

4.000MΩ, 40.00MΩ 0.1Ω ±(0.8% + 2d)
Frequency 10Hz to 10kHz 0.01Hz ±(1.5% + 2d)
Capacitance 40.00nF, 400.0nF, 40.00μF, 100.0μF 0.01nF ±(3.0% + 5d)
Temperature -4 to 1400°F (-20 to 760°C) 0.1° ±(3% + 9°F/5°C)
Duty Cycle 0.5 to 99.0% 0.1% ±(1.2% + 2d)
Diode Yes
Continuity Yes
Dimensions 7.9x2.6x1.5" (200x66x37mm)
Weight 7.2oz (205g)