Extech MA640 600A True RMS AC/DC Clamp Meter + NCV with NIST

Item #:

EXT-MA640-NIST

Brand:

Extech

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MA640 600A True RMS AC/DC Clamp Meter + NCV with NIST by Extech

True RMS for accurate readings of non-sinusoidal waveforms
Built-in non-contact Voltage detector with LED alert
1.5" (40mm) jaw size for conductors up to 500MCM
6000 count, backlit LCD display
Includes Multimeter functions
Model MA640 measures DC Current
Relative Mode for Capacitance Zero and Offset Adjustment
Data Hold, MIN/MAX, and Auto Power Off
Complete with test leads, general purpose Type K bead wire temperature probe, 9V battery and carrying case

General Specifications

Clamp jaw opening	1.5" (40mm) approx.
Display	6000 count backlit LCD
Continuity check	Threshold 60Ω; Test current < 0.35mA
Diode test	Test current of 0.9mA typical; Open circuit voltage [ 2.8VDC typical
Low Battery indication	Battery symbol is displayed
Over-range indication	'OL' display
Measurement rate	2 readings per second, nominal
Thermocouple sensor	Type K thermocouple required
Input Impedance	10MΩ (VDC and VAC)
AC current bandwidth	50/60Hz
AC voltage bandwidth	50 to 400Hz
AC response	True rms (AAC and VAC)
Crest Factor	3.0 in 60A and 600A ranges, (50/60Hz and 5% to 100% of range)
Operating Temperature	41°F to 104°F (5°C to 40°C)
Storage Temperature	-4°F to 140°F (-20°C to 60°C)
Operating Humidity	Max 80% up to 87°F (31°C) decreasing linearly to 50% at 104°F(40°C)
Storage Humidity	<80%
Operating Altitude	7000ft. (2000meters) maximum.
Battery	One (1) 9V Battery (NEDA 1604)
Auto power OFF	After approx. 15 minutes, with disable
Dimensions & Weight	9.2x3x1.53" (232x77x39mm); 9.56 oz. (271g)
Safety	For indoor use and in accordance with the requirements for double insulation to IEC1010-1 (2001): EN61010-1 (2001) Overvoltage Category III 600V and Category II 1000V, Pollution Degree 2.
Approvals	CE

Range Specifications

Function	Range	Resolution	Accuracy (% of reading + digits)
AC Current 50/60 Hz True RMS	60.00 AAC	0.01A	±(2.8% + 8 digits)
AC Current 50/60 Hz True RMS	600.0 AAC	0.1A	±(3.0% + 8 digits)
DC Current	60.00 AAC	0.01A	±(2.8% + 5 digits)
DC Current	600.0 ADC	0.1A	±(3.0% + 5 digits)
AC Voltage True RMS	6.000 VAC	0.001V	±(1.8% + 8 digits)
	60.00 VAC	0.01V
	600.0 VAC	0.1V
DC Voltage	600.0 mVDC	0.1mV	±(1.5% + 2 digits)
	6.000 VDC	0.001V
	60.00 VDC	0.01V
	600.0 VDC	0.1V
Resistance	600.0Ω	0.1Ω	±(1.0% + 4 digits)
	6.000kΩ	0.001kΩ	±(1.5% + 2 digits)
	60.00kΩ	0.01kΩ
	600.0kΩ	0.1kΩ
	6.000MΩ	0.001MΩ	±(2.5% + 3 digits)
	60.00MΩ	0.01MΩ	±(3.5% + 5 digits)
Capacitance	40.00nF	0.01nF	±(4.0% + 20 digits)
	400.0nF	0.1nF	±(3.0% + 5 digits)
	4.000µF	0.001µF
	40.00µF	0.01µF
	400.0µF	0.1µF	±(4.0% + 10 digits)
	4000µF	1µF	±(5.0% + 10 digits)
Frequency	10Hz to 10kHz	0.01Hz to 0.01khz	±(1.5% + 2 digits)
Frequency	Sensitivity: 15Vrms
Duty Cycle	0.5% to 99.0%	0.1%	±(1.2% + 2 digits)
Duty Cycle	Pulse width: 100μs to 100ms, Frequency: 10Hz to 10kHz
Temperature Type K	-4 to - 1400°F	0.1° <800°; 1° >800°	±3% reading + 9°F/5°C
	-20 to 760°C	0.1° <400°; 1° >400°	±3% reading + 9°F/5°C
	Specification does not include probe accuracy