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ETCR3000C Digital Earth Resistance Tester 4-digital Super-large LCD Display

Description:

ETCR3000C Digital Earth Resistance Tester 4-digital Super-large LCD Display

Product Main Function

1. Earth resistance measurement, Range: 0.010Ω~2000Ω

2. Earth voltage measurement,Range: AC 0~600V

3. Data storage: 400 sets

4. Alarm function: audible and visual alarm

ETCR3000C Digital Earth Resistance Tester specially designed and manufactured for the field measurement of ground resistance, adopts digital and micro-processing technology, 3 wire or 2 wire method to measure ground resistance, with unique calibration function for wire resistance, anti-interference ability and environmental adaptability, to ensure the long-term measurement of high precision, high stability and reliability; The instrument out shell adopts waterproof protection case, anti-collision, anti-fall, waterproof (protection grade IP65),which is strong, safe and durable, the instrument is also equipped with large capacity rechargeable lithium battery pack, especially suitable for outdoor construction site to use.It is widely used in measuring ground resistance of electric power, telecommunication, meteorology, oil field, construction, lightning protection and industrial electrical equipment.

ETCR3000C Digital Earth Resistance Tester has the unique function of wire resistance calibration, and it is more accurate to measure the low value ground resistance in the field, which can avoid the error caused by the change of wire resistance in the test line for a long time usage.It can avoid errors caused by incomplete insertion of test line into instrument interface or bad contact.It can avoid the error caused by the user to change or lengthen the test line..

ETCR3000C Digital Grounding Resistance Tester is composed of host machine, monitoring software, test wires, communication wires etc. The large LCD display of host machine, with white backlight and bar graph indicating that can be seen clearly. At the same time it can store 400 sets of data, realize historical inquiry and online real-time monitoring by monitoring software, dynamic display, with the indicator of max/min/average value, and with alarm value setting and alarm indicator functions, and with the functions as historical data access, reading, preservation, report forms, printing and so on.

Measurement Range and Accuracy

Measurement Function	Range	Accuracy	Resolution
Earth Resistance	0.01Ω~20Ω	±2%rdg±3dgt (Auxiliary grounding resistance 100Ω±5%, Votage to ground<10V)	0.01Ω
	0.1Ω~200Ω		0.1Ω
	1Ω~2000Ω		1Ω
Earth Voltage	0~600V AC	±2%rdg±3dgt	1V

Technical Specifications

Function	Description
Function	Measurement of earth resistance, voltage to earth, low value resistance
Power Supply	DC 7.4V 2600mAh rechargeable lithium battery, full of about 8.4V
Backlight	Controllable screen backlight, suitable for dim places
Measuring Mode	Precision 3-wire measurement, simple 2-wire measurement
Measuring Method	Earth Resistance: rated current change-pole method, measurement current 20mA Max
Measuring Method	Earth Voltage: Average rectification
Test Frequency	128Hz/111Hz/105Hz/94Hz(AFC)
Short Circuit Test Current	AC 20mA max
Data Mode	Average value, maximum value, minimum value
Wire Resistance Verification	To avoid errors caused by incomplete insertion of test wire into instrument interface or poor contact or replacement of extended test wire by users, so as to make the grounding resistance measurement more accurate
Display mode	4-digital super-large LCD display, white screen backlight
Measure indicator	LED flash indicator and LCD count down display in measurement
LCD Dimension	128mm×75mm; display area:124mmX67mm
Meter Dimension	280mm(L)×260mm(W)×160mm(H)
Test Wires	3 wires: each for red 15m, yellow 10m, and green 5m
Simple Test Wire	2 wires: each for red 1.6m and black 1.6m
Auxiliary Grounding Rod	2PCS: Φ10mm×150mm
Measuring Rate	Earth Voltage: about 3 times/second; Earth resistance: about 15 seconds/time
Measuring Times	Over 5000 times
Line Voltage	Measurement of earth voltage: below AC 600V
Communication Interface	With USB interface, software monitoring, storage data can be uploaded to computer, saved or printed.
Communication Wire	One piece of USB communication wire, wire length 1.5m
Data Storage	400 sets, “FULL” symbol flash display storage is full
Data Hold	Data hold function: “HOLD” symbol display
Data Access	Data read function: “READ” symbol display
Overflow Display	Exceed measuring range overflow function: “OL” symbol display
Alarm Function	Measuring value exceeds alarm setting value, will "Toot-toot-toot" alarm hint
Auto-shut off	Automatically shut down after 10 minutes of power on
Battery Voltage	While battery voltage decreases to around 7.2V±0.1V, will display battery voltage low symbol“ ”, and remind to charging the battery
Power Consumption	Backlight: 25mA Max
	Standby: 25mA Max(Backlight shut down )
	Measurement: 200mA Max(Backlight shut off)
Weight	Tester: 2.29kg
	Test wires: 0.847g(include the simple test wires)
	Auxiliary Grounding Rod:0.468kg(2pcs)
	Tester package: 0.915kg
Working Temperature & Humidity	-10^oC-40^oC, below 80%rh
Storage temperature & humidity	-20^oC-60^oC, below 70%rh
Protection Level	IP65(close the case)
Overload Protection	Measure earth resistance: between each interfaces of C(H)-E?P(S)-ES, AC 280V/3 seconds
Insulation Resistance	Over 10MΩ (between circuit and outside shell is 500V)
Withstanding Voltage	AC 3700V/rms. (Between circuit and outside shell)
Electromagnetic Features	IEC61010-4-3,wireless frequency electromagnetic field?1V/m
Protection Type	IEC61010-1 (CATIII 300V, CAT IV 150V, Pollution 2);
	IEC61010-031;
	IEC61557-1 (Earth resistance);

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