ETCR3250 Pylon Earth Resistance/Resistivity Tester Manufacturer & Supplier

Overview
Specification
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Overview

ETCR3250 Pylon Earth Resistance/Resistivity Tester is specially designed and manufactured for on-site measurement of tower grounding resistance. A transmission line tower usually has two or four lead lines, and the connection between the lead line and the ground pole must be unfastened when the ground resistance is measured by the ground pile method or the clamp meter method. The meter adopts 4 clamp method to measure the grounding resistance value of the pole tower, no need to unfasten the measurement, the wireless communication between the 4 current clamp and the host, the field measurement is fast and safe, greatly reducing the work intensity of the operator and improving the work efficiency.

ETCR3250 Pylon Earth Resistance/Resistivity Tester is composed of a host, 4 current clamps, test lines, auxiliary grounding rods, communication lines, printers, etc. Its performance is mainly reflected in:

Measured the pylon earth resistance by 4-clamps method, which is no need to trip the pylon and earth network, fast and safe, time-saving and labor-saving.
Measured the earth resistance & soil resistivity, earth voltage and AC leakage current by the 2, 3, and 4-wire method. The current clamp can be used as a clamp ammeter.
The host adopts 7-inch large color screen, equiped with built-in printer and large-capacity rechargeable lithium battery pack, package with waterproof instrument box. And the Bluetooth communication is especially suitable for outdoor construction sites.

ETCR3250 Accessories:

Tester
Current Clamp Sensor
Ground Rod
Test lines
Simple test lines
USB communication cable
Tool bag
Special recahrager
Current clamp 4 in 1 charge cable and charger
Print paper

Specification

Measuement Accuracy

Function	Measurement Range	Accuracy	Resolution
Earth Resistance(R) (4-clamp Method)	0.10Ω～20.00Ω	±10%rdg±5dgt	0.01Ω
Earth Resistance(R) (4-clamp Method)	20.0Ω～200.0Ω	±10%rdg±5dgt	0.1Ω
Earth Resistance(R)	0.10Ω～20.00Ω	±2%rdg±3dgt	0.01Ω
	20.0Ω～200.0Ω	±2%rdg±3dgt	0.1Ω
	200Ω～2000Ω	±2%rdg±3dgt	1Ω
	2.00kΩ～20.00kΩ	±4%rdg±3dgt	10Ω
Soil Resistivity(ρ)	0.00Ωm～99.99Ωm	(ρ=2πaRa:1m～100m；π=3.14)	0.01Ωm
	100.0Ωm～999.9Ωm		0.1Ωm
	1000Ωm～9999Ωm		1Ωm
	10.00kΩm～99.99kΩm	(ρ=2πaRa:1 m～100m；π=3.14)	10Ωm
	100.0kΩm～999.9kΩm		100Ωm
	1000kΩm～9000kΩm		1kΩm
AC Current（A～）	1.00mA～50.00mA	±2%rdg±3dgt	0.01mA
	0.50A～5.000A	±2%rdg±3dgt	0.001A
	5.0A～500.0A	±3%rdg±3dgt	0.1A
Eearth Voltage（V～）	0.0V～200.0V	±2%rdg±3dgt	0.1V

Technical Specification

Function	Description
Power Supply	DC7.4V 5200mAh rechargeable lithium battery, full charge about 8.4V
Measurement Range	4-clamp method measure earth resistance: 200Ω
	Earth Rsistance:0.00Ω～20.00kΩ
	Soil Resistivity:0.00Ωm～9000kΩm
	AC Current:1.00mA～500.0A
	Earth Potential (Voltgae):0.0V～200.0V
Measurement Method	Pylon earth resistance: 4-clamp method
	Earth resistance:rated current change-pole method
	Soil resistivity:4-pole method (Wenner method)
	AC Current: Clamp CT, RMS value acquisition
	Earth potential(Voltage):
CT Size	Φ68mm
Short-circuit Test Current	AC55mA max
Open-circuit TestVoltage	AC15V max
Test Voltage Wave	Sine wave
LCD Dimension	7-inch color screen,LCD Frame Dimension:151mm×83mm
Tester Dimension	355mm(L)×272mm(W)×164mm(H)
Standard Test Line	4PCS: red 20m, black 20m, yellow 10m, green 10m
Simple Test Line	2PCS: red 1.6m, black 1.6m
Auxiliary Ground Rod	4PCS：φ9mm×230mm
Test Time	Earth resistance, soil resistivity: 30s/times
Communication Terminal	With USB terminal, software monitoring, stored data can upload to PC, save and print.
Printer	Built-in type
Data Storage	100 groups,“001/100” store indication, display “100/100” indicate full storage
Overflow Indication	When overrange overflow will indicate “OL” symbol
Auxiliary Earthing Testing	With the function of auxiliary earth resistance test,0.00KΩ～20kΩ(100R+rC<20kΩ，100R+rP<20kΩ)
Alarm Function	Measured value exceed the alarm setting value, will indicate “ ” alarm symbol
Automatic Shutdown	30 Minutes after power on, will automatic shut down without any operation
Battery Voltage	While battery voltage decreases to around DC 7.2V±0.1V, will display low battery voltage symbol“ ”, and remind tocharge
Working Current	Stand by: about 400mA; Measurement: 550mA
Total Weight	9000g(includeaccessories)
Working Temperature	-10℃～40℃；below 80%RH
Store Temperature	-20℃～60℃；below 70%RH
Overload Protection	Measure earth resistance: between each interfaces ofC(H)-E、P(S)-ES, AC 280V/3 seconds
Protection Level	IP65（close the case）
Insulation	Above 20MΩ (between the circuit and shell is 500V)
Suitable Safe Standard	IEC61010-1(CAT Ⅲ 300V,CAT IV 150V,Pollution level 2)；IEC61010-031；IEC61557-1(earth resistance)；IEC61557-5 (soil resistivity)；JJG 366-2004
Accessories	Tester:1PC;Current Clamp Sensor:4PCS; Ground Rod:4PCS; Testlines:4PCS; Simple test lines: 2PCS; USBcommunication cable:1PCS;Tool bag: 1PCS; Special recahrager: 1PCS;Current clamp 4 in 1 charge cable and charger: 1set; Print paper: 1roll.