Kyoritsu KEW 410DLBT-H Earth Tester

Kyoritsu KEW 410DLBT-H Earth Tester is a high-precision digital earth resistance meter designed for accurate grounding measurement in industrial, commercial, and electrical inspection applications. It features advanced Bluetooth connectivity for seamless data transfer, a clear backlit display, and reliable 2-wire/3-wire testing capability. Built with durability and user-friendly operation, this model ensures consistent performance even in challenging field conditions. Ideal for electricians, engineers, and maintenance professionals who need fast and dependable readings.

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Product Overview

 Measurement Data Managemant Application "KEW Smart Advanced"

One application can manage all supported models.

Measurement Method

Measurement of the earth electrode resistance (3-Pole method)

The international standard IEC 60364-6 provides information regarding the measurement of the resistance of an earth electrode for TT, TN and IT systems.
This measurement shall be made by the Volt-Amperometric method using two auxiliary earth electrodes.
The instrument that covers this requirement is the Earth Tester.

Measurement of the simplified earth resistance (2-Pole method)

 

 

Various Features

Dust and Waterproof

After use you can wash it to remove the mud and dust.

Strong noise rejection

Noise rejection up to 25V rms allows accurate testing in noisy environments.

Earth voltage warning

A red LED comes on if an external voltage is detected.

【LED light comes on if:】

Frequency	Voltage
0 to 10Hz	> 10V
10 to 100Hz	>25V
100 to 400Hz	>5V

Robust steel-made earth spikes

Earth measurements are possible up to 100kΩ* of auxiliary earth spikes resistance.
*20Ω range 10kΩ, 200Ω range 50kΩ, 2000Ω range 100kΩ.

Auxiliary earth resistance check

4105DLBT-H checks if the auxiliary earth resistance is:

Large LCD Display with Backlight

 

Useful Accessories and Options for measurement

Robust forged earth spikes (MODEL 8041)

Robust forged earth spikes.

Cable reel for Earth resistance tester  (MODEL 7267/7268) 

Innovative Cable reel with wire guide system to facilitate rewinding.

 

Adapter for measurement terminal (MODEL 8259)

Adapter to enable use of other test leads.

Specification

Earth resistance measurement		20Ω		200Ω		2000Ω
	Measuring range	0.00 to 2000 Ω
	Display range	0.00 to 20.99 Ω		0.0 to 209.9 Ω		0 to 2099 Ω
	Accuracy*1	±1.5%rdg±0.08 Ω*2		±1.5%rdg±4dgt
	Auxiliary earth resistance*3	<10kΩ		<50kΩ		<100kΩ
	Comparator reference value	10Ω		100Ω		500Ω
Earth voltage measurement
	Measuring range	0 to 300 V AC (45 to 65Hz)			±0 to ±300 V DC
	Display range	0.0 to 314.9 V			0.0 to ±314.9 V
	Accuracy	±1%rdg±4dgt
Applicable Standards		IEC 61010-1 CAT Ⅳ 100V / CAT Ⅲ 150V / CAT Ⅱ 300V Pollution degree 3 IEC 61010-2-030, IEC 61010-031, IEC 61557-1, 5 IEC 60529 (IP67), IEC 61326-1, 2-2
Communication interface		Bluetooth®5.0
Power source		LR6(AA)(1.5V) × 6
Dimension		121(L) × 188(W) × 59(D) mm (including case lid)
Weight		Approx. 690g (including batteries and case lid)
Accessories		7127B (Simplified measurement probe) 7266 (Earth resistance test leads [red:20m, yellow:10m, green:5m/1set]) 8041 (Auxiliary earth spikes [2spikes/1set]) 9121 (Shoulder strap)  9197 (Hard case) LR6(AA) × 6, Instruction manual
Optional Accessories		7267 (Cable reel for Earth resistance tester [red:20m]) 7268 (Cable reel for Earth resistance tester [yellow:10m]) 7271 (Earth resistance test lead [green:5m]) 7272 (Precision measurement cord set) 8259 (Adapter for measurement terminal) 9190 (Carrying case) 9192 (Carrying case for cord reels) 7269 (Earth resistance test lead (Red 20m)) 7270 (Earth resistance test lead (Yellow 10m))