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简单介绍

 的详细介绍
ETCR3000 Digital Earth Resistance Tester
Color page: User's manual: CE certificate:
ETCR3000 Digital Earth Resistance Tester ETCR3000 ETCR

Earth resistance measurement, Earth voltage measurement, Low resistance measurement. New material body, stands hits, avoid slip, Solid and durable. Wire resistance verification, Data upload with RS232, Alarm function, Software monitoring, Data memory: 400 sets, Resistance range: 0.01Ω~2000Ω, Earth voltage range: 0~600V

ETCR3000 Digital Earth Resistance Tester
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ETCR3000 Digital Earth Resistance Tester
Ⅰ. Introduction

ETCR3000 Digital Earth Resistance Tester is specially designed and manufactured for field measurement, adopting the latest digital and micro-processing technology, 3-pole or 2-pole method for earth resistance measurement, with a unique function of wire resistance verification, anti-interference capability and the ability to adapt to the environment, to ensure high precision, high stability and reliability for prolonged measure, which is widely used in electric power, telecommunications, meteorology, oil field, construction, lightning protection, industrial electrical equipment and other earth ground resistance measurement.
ETCR3000 Digital Earth Resistance Tester has a unique function of wire resistance verification,more accurate on measuring on-site low value earth ground resistance, which can avoid error caused by resistance change due to prolonged usage of testing wire; avoid error caused by testing wire that is failed to be fully inserted into tester interface or by poor contact; avoid error caused by users’ replacing or lengthening testing wires.
ETCR3000 Digital Earth Resistance Tester is composed of host machine, monitoring software, testing wires, communication wires and others. The large LCD display of host machine is with blue backlight and bar graph indicating that can be seen clearly. At the same time it can store 400 sets of data, fulfilling historical inquiry and online real-time monitoring through monitoring software, dynamic display, with the maximum, minimum, and mean indicators, with alarm settings and alarm indicator, and with the functions like historical data access, reading, preservation, report forms, printing and so on.
 
. Technical Specifications
 
Model
ETCR3000
Function
Earth resistance measurement, Earth voltage measurement, Low resistance measurement
Power Supply
DC 9V (Zi-Mn dry battery R14S 1.5V 6 PCS, continuous standby for 300 hours )
Measuring Mode
Precise 3-pole measurement, simple 2-pole measurement
Measuring Method
Earth ground resistance: constant current change-pole method, measurement current 3mA Max,820Hz;
Voltage to ground: average value rectification
Data Mode
Average value, maximum, minimum
Wire Resistance Verification
Avoid error caused by testing wire such as failed to be fully inserted into tester interface or by poor contact or by user’ s replacing or lengthening testing wires, making it more accurate for earth ground resistance measurement.
Display Mode
4-digital super-large LCD display, blue screen backlight, LCD dimension: 128mm×75mm;Display field:124mm×67mm
Measuring Indication
During measurement, LED flash indicator, LCD count down display
Earth Ground Resistance
Range:0.01Ω~2000Ω;Resolution:0.01Ω;Accuracy:±1%rdg±3dgt
Earth Ground Voltage
Range:0V~600V AC;Resolution:1V;Accuracy:±1%rdg±3dgt
Tester Dimension
LWH:215mm×190mm×95mm
Testing Wires
Three wires: each for Red 20m, Yellow 10m, and Green 5m
Simple Testing Wire
2 wires: each for Red 1.5m and Green 1.5m
Auxiliary Earthing Rod
2 PCS: Φ10mm×150mm
Measuring Rate
Earth voltage measurement: 3 times/second; Earth resistance: 5 seconds/time
Measuring Times
Over 5000 times (20Ω range measuring 10Ω for one time and repeat after 25 seconds)
Circuit Voltage
Measuring voltage to ground: measuring below AC 600V
RS232 Interface
Possess RS232 interface, software supervision, storage data can be uploaded to computer, preserved and printed.
Communication Wire
One piece of RS232 communication wire, with length 1.5m
Data Storage
400 sets, flash display “FULL”icon to indicate storage is full
Data Hold
Data hold function: “HOLD”icon display
Data Read
Data read function: “READ” icon display
Overflow Display
Exceeding measuring range overflow function: “OL”icon display
Alarm Function
When measuring value exceeds alarm setting value, there is “Toot-toot-toot” alarm hint
Battery Voltage
When battery voltage decreases to about 7.8V, battery voltage low icon “ ”will display, reminding to replace battery.
Power Consumption
Backlight:25mA Max;Standby: 25mA Max(Backlight shut off);Measurement:70mA Max(Backlight shut off)
Weight
1443g(with batteries)
Working Temperature & Humidity
-10℃~40℃;below 80%rh
Storage Temperature & Humidity
-20℃~60℃;below 70%rh
Overload Protection
Measuring earth ground resistance: between each interfaces of E-PE-C, AC 280V/3 seconds
Insulation Resistance
Over 10MΩ(between circuit and enclosure it is 500V)
Withstanding Voltage
AC 3700V/rms (Between circuit and enclosure)
Electromagnetic Features
IEC61010-4-3,Wireless frequency electromagnetic field≤1V/m
Protection Type
IEC61010-1、IEC1010-2-31、IEC61557-1,5、IEC60529(IP54)、CAT Ⅲ 300V 、Pollution etc.
Accessories
Tester: 1PC; Earthing Rod: 2PCS; Testing Wire: 3PCS; Simple testing wire: 2PCS; RS232 Com-cable: 1PC; Software disk: 1PC; Tester bag: 1PC
 
. Field Application
 

 
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