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

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

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

 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

 -10oC-40oC, below 80%rh

 Storage temperature & humidity

 -20oC-60oC, 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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