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Home Electrical, EV & Electronic Clamp Meters Earth Clamp Meters

Extech 382357 Clamp-On Ground Resistance Tester

Autoranging ground resistance measurements from 0.025Ω to 1500Ω with 0.002Ω resolution
Programmable high/low alarm
Large 23mm jaw size for large ground rods

SKU

382357

MPN

382357

View All Earth Clamp Meters

Description Technical Info Reviews

Completely non-contact measurements of ground conductors are simple with the Extech 382357 – it doesn’t even require auxiliary spikes to operate!

This earth clamp meter can perform fully auto-ranging measurements of ground resistance from 0.03 to 1500Ω with a resolution of 0.002Ω for extra precision. A dedicated AC leakage current (true RMS) function is also included and can measure across a range of 0.2mA to 30.00A.

The Extech 382357 has a built-in data-logging capability with programmable logging points. It can store up to 116 data points and comes with programmable high/low alarms which will alert the user if spikes/drops are detected.

The jaws of this clamp meter are 0.9” (23mm) in diameter and are suitable for use with large ground rods.

Extech 382356 Clamp-On Ground Resistance Tester Key Features

Non-contact measurements of ground conductors without auxiliary spikes
Autoranging
Ground resistance measurement range of 0.03 to 1500Ω with a resolution of 0.02Ω
Datalogging – programmable logging for up to 116 data points
User-programmable high and low alarms
0.9” (23mm) jaw size
Auto power off when left idle
Automatic self-calibration when powered on
9999 count LCD
Data hold function freezes the last value taken on the screen
Electrical noise detection prevents inaccurate readings

What’s Included?

Extech 382356 Clamp-On Ground Resistance Tester
9V Battery
Resistance Check Plate
Metal Storage Case
Manufactured by a world leader in innovative handheld tools

£1,003.00

£1,203.60 inc vat

Free Delivery*

1003 Reward Points 60 Days Return

Technical Information

Specification

Extech 382357 Technical Specifications

Ground Resistance
Range	Resolution	Accuracy
0.025 to 0.25Ω	0.002Ω	±(1.5% + 0.05Ω)
0.250 to 1.000Ω	0.02Ω	±(1.5% + 0.05Ω)
1.001 to 9.999Ω	0.02Ω	±(1.5%+ 0.1Ω)
10.00 to 50.00Ω	0.04Ω	±(1.5% + 0.1Ω)
50.01 to 99.99Ω	0.04Ω	±(1.5% + 0.5Ω)
100.0 to 200.0Ω	0.4Ω	±(1.5% + 0.5Ω)
200.1 to 400.0Ω	2Ω	±(5.0% + 5Ω)
400.0 to 600.0Ω	5Ω	±(10% + 10Ω)
600.1 to 1500Ω	20Ω	±20%
AC Leakage Current (True RMS)
0.300 to 1.000mA	0.001mA	±(2.0% + 0.05mA)
1.00 to 10.00mA	0.01mA	±(2.0% + 0.03mA)
10.0 to 100.0mA	0.1mA	±(2.0% + 0.3mA)
100 to 1000mA	0.1mA	±(2.0% + 0.3mA)
0.20 to 4.00A	0.01A	±(2.0% + 0.03A)
4.00 to 30A	0.01A	±(3.0% + 0.03A)
General Specs
Resistance Test Frequency	1.667kHz
Dimensions	10.2 x 4.4 x 1.9" (258 x 110 x 47mm)
Weight	24.7oz (700g)