AC/DC แคลมป์มิเตอร์ 600A True RMS AC/DC Clamp Meter + NCV รุ่น MA640

AC/DC แคลมป์มิเตอร์ 600A True RMS AC/DC Clamp Meter + NCV ยี่ห้อ Extech, USA

รหัสสินค้า: Extech MA640 หมวดหมู่:


แคลมป์มิเตอร์ เครื่องวัดกระแสไฟฟ้า AC/DC Clamp-on Meter > Clamp meter

MA640: 600A True RMS AC/DC Clamp Meter + NCV ยี่ห้อ Extech, USA

True RMS AC/DC Current Clamp Meter with Built-In Non-Contact Voltage Detector

Extech MA640 600A True RMS autoranging AC/DC clamp meter offers plant maintenance techs, electrical troubleshooters, and DIYers a test instrument that delivers a high level of performance and value. In addition to a host of advanced multimeter and current measurement capabilities, it also features a built-in, non-contact voltage (NCV) detector. Whether you are performing amp readings in a heavy-duty industrial setting or doing commercial electrical work, the 600A rating and ample 1.5 inches (40mm) jaw opening can accommodate most jobs, swallowing conductors up to 750 MCM. The large, illuminated, dual display is useful in poorly lit job sites, and the 4-digit (6,000 count) readout is complemented by a bargraph display to simulate an analog display. You can operate the meter with one hand, having a thumb-dial selector that is ergonomically placed off the side of the meter. The heart of the MA640 is an advanced digital multimeter. You can select auto- or manual-ranging and measurement functions cover all types of troubleshooting over and above noninvasive current probe measurements: voltage, resistance, capacitance, frequency, duty cycle, diode and continuity tests. Even measure temperature with the supplied Type K bead wire probe. Comes with test leads, 9-volt battery, carrying case, user manual, and manufacturer’s one-year limited warranty on parts and labor.


  • AC/DC Current, AC/DC Voltage, Resistance, Frequency, Capacitance, Temperature, Duty Cycle, Diode and Continuity
  • Integrated Non-Contact Voltage Detector with LED alert
  • 1.5” (40mm) jaw size for conductors up to 500MCM
  • 6000 count, backlit LCD display
  • 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

For complete specs please download the product datasheet (not available for some accessories)

Max. Resolution
Basic Accuracy
 (% readings+digits)
 Display counts
 AC Current (True RMS)
 60.00A, 600.0A
 ±(2.8% + 8d)
 DC Current (MA640 only)
 60.00A, 600.0A
 ±(2.8% + 8d)
 AC Voltage (True RMS)
 6.000V, 60.00V, 600.0V
 ±(1.8% + 8d)
 DC Voltage
 600.0mV, 6.000V, 60.00V, 600.0V
 ±(1.5% + 2d)
 600.0Ω, 6.000kΩ, 60.00kΩ,
 600.0kΩ, 6.000MΩ,  60.00MΩ
 ±(1.0% + 4d)
 10Hz to 10kHz
 ±(3.0% + 5d)
 40.00nF, 400.0nF, 4.000μF, 40.00μF,
 400.0μF, 4000μF
 ±(3.0% + 5d)
 -4 to 1400°F (-20 to 760°C)
 ±(3% + 9°F/5°C)
 Duty Cycle  0.5 to 99.0% 0.1%  ±(1.2% + 2d)
 9.1x3x1.5″ (232x77x39mm)
 9.6oz (271g)
CE ETL NIST CATIII 600V warranty12
Extech MA640-620 Clamp Meter Showcase Video:

หมายเหตุ ::
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