Extech 400A Dual Input AC/DC Clamp Meter + NCV
Features
- Built-in non-contact Voltage detector with LED alert
- 1.25" (32mm) jaw opening for conductors up to 500MCM
- Autoranging with manual override
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The Extech 400A AC/DC Clamp Meter + NCV has built-in thermocouple inputs for T1, T2, and T1-T2 differential temperature measurement. The 40,000 count multimeter has functions for DC voltage, resistance, capacitance, and frequency for high resolution over wider ranges. The true RMS measurements are conducted for accurate AC voltage and current. The meter also features a built-in non-contact voltage detector with LED alert. The 1.25" jaw opening fits conductors up to 500MCM.
Model Options
Models EX622 and EX623 feature an additional built-in non-contact IR thermometer with laser pointer for locating hot spots at an 8 to 1 distance to target ratio. Models EX613 and EX623 also include a DC current function ideal for automotive, heavy equipment, and marine applications.
EX613
- AC current: 400.0A
- DC current: 400.0A
- Maximum resolution: 10mA
- Basic ACA accuracy: ±1.5%
- AC/DC voltage maximum resolution: 600V (0.1mV)/600V (0.01mV)
- DC μA current: 4000μA (0.01μA)
- Resistance maximum resolution: 40.000MΩ (0.01)
- Capacitance maximum resolution: 10pF to 40,000μF (0.01nF)
- Frequency maximum resolution: 40MHz (0.001Hz)
- Temperature type K: -58 to 1832°F (-50 to 1000°C)
- Diode test: < 2.8V
- Duty cycle: 0.5 to 99.0%
- Dimensions: 9x3.1x1.9" (229x80x49mm)
- Weight: 10.7oz (303g)
EX622
- Temperature IR: -58 to 518°F (-50 to 270°C)
- AC current: 400.0A
- Maximum resolution: 10mA
- Basic ACA accuracy: ±1.5%
- AC/DC voltage maximum resolution: 600V (0.1mV)/600V (0.01mV)
- DC μA current: 4000μA (0.01μA)
- Resistance maximum resolution: 40.000MΩ (0.01)
- Capacitance maximum resolution: 10pF to 40,000μF (0.01nF)
- Frequency maximum resolution: 40MHz (0.001Hz)
- Temperature type K: -58 to 1832°F (-50 to 1000°C)
- Diode test: < 2.8V
- Duty cycle: 0.5 to 99.0%
- Dimensions: 9x3.1x1.9" (229x80x49mm)
- Weight: 10.7oz (303g)
EX623
- Temperature IR: -58 to 518°F (-50 to 270°C)
- AC current: 400.0A
- DC current: 400.0A
- Maximum resolution: 10mA
- Basic ACA accuracy: ±1.5%
- AC/DC voltage maximum resolution: 600V (0.1mV)/600V (0.01mV)
- DC μA current: 4000μA (0.01μA)
- Resistance maximum resolution: 40.000MΩ (0.01)
- Capacitance maximum resolution: 10pF to 40,000μF (0.01nF)
- Frequency maximum resolution: 40MHz (0.001Hz)
- Temperature type K: -58 to 1832°F (-50 to 1000°C)
- Diode test: < 2.8V
- Duty cycle: 0.5 to 99.0%
- Dimensions: 9x3.1x1.9" (229x80x49mm)
- Weight: 10.7oz (303g)
- (1) Meter
- (1) Set of CAT III-600V double molded test leads
- (1) 9V battery
- (2) Type K bead wire probes
- (1) Case
In The News
Lake Erie Volunteer Science Network: Building Trust in Citizen Science Programs
Citizen science programs have popped up across the United States, focusing on connecting local communities with nearby water resources and building a trustworthy data pool over the sampling period. While commonly utilized as a means of ensuring that large watersheds or lake regions are adequately sampled, the credibility and success of such programs have been called into question. 
 
[caption id="attachment_38996" align="alignnone" width="940"] HRWC volunteers measure stream velocity across a subsection of Woods Creek, a tributary of the Huron River near Belleville, Michigan. Stream velocity measurements can be combined with water level measurements to calculate stream flow and chemical parameter loads.
Read MoreMonitoring Lake Erie’s Eastern Basin: Building Long-Term Data and Real-Time Public Solutions
In the eastern basin of Lake Erie, off the coast of Dunkirk, New York, a data buoy collects valuable water quality, weather, and wave data that inform residents and regulatory groups of conditions on the water. 
 
Since 2011, Buffalo State University’s Great Lakes Center has maintained and operated the Dunkirk buoy with funding from the Great Lakes Observing System (GLOS) and field support from the NYSDEC Lake Erie Fisheries Research Unit. 
 
[caption id="attachment_38976" align="aligncenter" width="940"] The Dunkirk Buoy viewed from the research vessel after being deployed in early spring.
Read MoreSonTek CastAway-CTD Meter Review
Lightweight and easy to use, the SonTek CastAway offers a convenient 3-in-1 solution for measuring conductivity, temperature, and depth profiles. At a 5 Hz sampling rate, the CastAway is designed for up to 1 m/s free-fall through the water column. 
 
 With fast response and accurate conductivity, temperature, and depth measurements, the CastAway is ideal for thermocline and halocline profiling. The unit also reports salinity and speed of sound. 
 
[caption id="attachment_38732" align="alignnone" width="940"] Environmental scientist, Katelyn Kubasky, holding the SonTek CastAway in front of the pond at the Fondriest Center for Environmental Studies.
Read More