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Extech MA640 600A True RMS AC/DC Clamp Meter + NCV with NIST
Item #:
EXT-MA640-NIST
Brand:
Extech
Share this product:
MA640 600A True RMS AC/DC Clamp Meter + NCV with NIST by Extech
Features
- 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
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 |
Function |
Range |
Resolution |
Accuracy
(% of reading + digits) |
AC Current 50/60 Hz
True RMS |
60.00 AAC |
0.01A |
±(2.8% + 8 digits) |
600.0 AAC |
0.1A |
±(3.0% + 8 digits) |
|
DC Current |
60.00 AAC |
0.01A |
±(2.8% + 5 digits) |
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) |
Sensitivity: 15Vrms |
|||
Duty Cycle |
0.5% to 99.0% |
0.1% |
±(1.2% + 2 digits) |
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° |
||
Specification does not include probe accuracy |