Range 0.01ohm~2000ohm  ETCR3000 Earth Ground Resistance Tester ----RS232 

Interface

  Measurement Range & Accuracy Class

              Function

     Range

     Accuracy

     Resolution

             Earth Ground Resistance

     (0.01~20)Ω

     ±1%rdg±3dgt

(Assistant Earth Resistance100Ω±5%, Turn-ground voltage<10V)

     0.01Ω

             (0.1~200)Ω

     0.1Ω

             (1~2000)Ω

     1Ω

             Earth Voltage

     (0~600)V AC

     ±1%rdg±3dgt

     1V

  (Note:23°c±5°c,75%rh)

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  Product Characteristics：

  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

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  . 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 1.6m and Green 1.6m

             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

             BatteryVoltage

     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°c~40°c;below 80%rh

             Storage Temperature & Humidity

     -20°c~60°c;below 70%rh

             Overload Protection

     Measuring earth ground resistance: between each interfaces of E-P,E-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