Introduction

 ETCR3000B Earth Resistance Soil Resistivity Tester is specially designed and manufactured for measuring earth resistance, soil resistivity, earth voltage, AC voltage. Adopting the latest digital and micro-processing technology, precise 4-pole, 3-pole and simple 2-pole method for earth resistance measurement, importing FFT and AFC technology, with a unique function of anti-interference capability and the ability to adapt to the environment, consistency of repeat testing, 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 resistance, soil resistivity, earth voltage, AC voltage measurement.

 ETCR3000B Earth Resistance Soil Resistivity Tester is composed of host machine, monitoring software, testing wires, auxiliary ground pillars, 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 300 sets of data, fulfilling historical inquiry and online real-time monitoring through monitoring software, dynamic display, alarm indicator, and with the functions like historical data access, reading, preservation, report forms, printing and so on.

   General Specification 

                     Function     

    Measurement of 2/3/4-pole earth resistance, soil resistivity, earth voltage, AC voltage

                     Power Supply     

    DC 9V(Zi-Mn dry battery R14S 1.5V 6 PCS, continuous standby for 300 hours )

                     Measurement Range     

    Earth Resistance: 0.00?-30.00k?

          Soil Resistivity: 0.00?m-9000k?m

                     Measuring Mode     

    Precise 4-pole measurement, 3-pole measurement, simple 2-pole measurement

                     Measuring Method     

               Earth Resistance: rated current change-pole method, measurement current 20mA Max     

           Soil Resistivity: 4-pole measurement (Wenner method)     

           Earth Voltage: average rectification(between P(S)-ES)     

                     Test Frequency     

    128Hz/111Hz/105Hz/94Hz(AFC)

                     Short-circuit Test Current     

    AC 20mA max

                     Open-circuit Test Current     

    AC 40V max

                     Test Voltage Wave     

    Sine wave

                     Electrode DistanceRange     

    Can be set 1m-100m

                     Shift     

    Earth Resistance: 0.00?-30.00k?, automatic shift

          Soil Resistivity: 0.00?m-9000k?m, automatic shift

                     Backlight     

    Blue screen backlight, suitable for dim places

                     Display Mode     

    4-digital super-large LCD display, blue screen backlight

                     Measuring Indicator     

    During measurement, LED flash indicator, LCD count down display, progress bar indicator

                     LCD Frame Dimension     

    128mm×75mm

                     LCD Window Dimension     

    124mm×67mm

                     Dimension     

    L×W×H: 215mm×190mm×95mm

                     Standard Test Wire     

    4 wires: each for red 20m, black 20m, yellow 10m, and green 10m

                     Simple Test Wire     

    2 wires: each for red 1.6m and black 1.6m

                     Auxiliary Earthing Rod     

    4 rods: ?10mm×150mm

                     Measuring Rate     

    Earth voltage: about 3 times/second

          Earth resistance, soil resistivity: about 5 seconds/time

                     Measuring Times     

    Over 5000 times (Short-circuit test, interval time should be at least 30 seconds)

                     Line Voltage     

    below AC 600V

                     RS232 Interface     

    Possess RS232 interface, software supervision, storage data can be uploaded to computer, saved or printed.

                     Communication Wire     

    One piece of RS232 communication wire, with length 1.5m

                     Data Storage     

    300 sets, ?MEM? icon storage indicator, flash display ?FULL? icon to indicate storage is full

                     Data Hold     

    Data hold function: ?HOLD? icon display

                     Data Access     

    Data read function: ?READ?icon display

                     Overflow Display     

    Exceeding measuring range overflow function: ?OL? icon display

                     Interference Test     

    Recognize interference signal automatically, ?NOISE? icon display when interference voltage exceed 5V

          Auxiliary Earthing Test

    Can measure auxiliary earth resistance, 0.00K?-30k?(100R+rC<50k?, 100R+rP<50k?)

                     Alarm Function     

    When measuring value exceeds alarm setting value, there is ?Toot-toot-toot? alarm hint

                     Battery Voltage     

    When battery voltage decreases to about 7.5V, battery voltage low icon will display, reminding to replace battery.

                     Power Consumption     

    Standby: about 20mA (Backlight shut off)

          Boot and with backlight: about 45mA (25mA without backlight)

          Measurement: about 100mA (Backlight shut off)

                     Weight     

    Total weight: 4.5kg (including package)

          Tester: 1443g (including battery)

          Tesing wires: 1560g

          Auxiliary earthing rods: 935g (4pcs)

                     WorkingTemperature & Humidity     

    -10C-40C, below 80%rh

                     Storage temperature & humidity     

    -20C-60C, below 70%rh

                     Overload Protection     

    Measuring earth resistance: between each interfaces of C(H)-E P(S)-ES,AC 280V/3 seconds

                     Insulation Resistance     

    Over 20M? (between circuit and enclosure it is 500V)

                     Withstanding Voltage     

    AC 3700V/rms (Between circuit and enclosure)

                     Electromagnetic Features     

    IEC61326(EMC)

                     Protection Type     

    IEC61010-1 (CAT III 300V CAT IV 150V Pollution 2), IEC61010-031, IEC61557-1 (Earth resistance), IEC61557-5 (Soil resistivity), JJG 366-2004

 Accessories

      Tester

   1 PC

       Tester Bag

   1 PC

       Auxiliary Earthing Rod

   4 PCS

       Standard testing Wire

   4 wires: each for red 20m, black 20m, yellow 10m, and green 10m

       Simple testing Wire

   2 wires: each for red 1.6m and black 1.6m

       Zinc-manganese Dry Battery

   6 PCS (R14S 1.5V)(not included package)

       Monitoring Software Disk

   1 Copy

       RS232 Communication Cable

   1 PC

       Manual/Warranty Card/Qualification Certificate

   1 Copy

   The package not included batteries