product functions：

   Precision three-wire, simple two-wire grounding resistance measurement, grounding voltage measurement, low-value resistance measurement.  

  Product Features：

  1. It has a unique line resistance verification function, anti-interference ability and environmental adaptability, and is more accurate for low-value grounding resistance measurement on site.

  2. It adopts waterproof protective box, which is waterproof, anti-collision, anti-drop, durable, and large-capacity rechargeable lithium battery pack, which is especially suitable for outdoor construction sites.

  3. The large LCD display of the host, with white screen backlight and bar graph indication, is clear at a glance. Alarm function, overload protection function, automatic shutdown, data upload function.

  Product Specifications：

              Earth Resistance

     Range:0.01Ω~2000Ω        Resolution:0.01Ω       Accuracy:±2%rdg±3dgt

             Earth Voltage

     Range:0~600V AC            Resolution:1V           Accuracy:±2%rdg±3dgt

             Power Supply

     DC 7.4V 2600mAh rechargeable lithium battery

             Tester Dimension

     280mm(L)×260mm(W)×160mm(H)

             Weight

     4520g(with package)

             Measuring Method

     Earth ground resistance: rated current change-pole method, measurement current 3mA Max,820Hz; Earth Voltage: average value rectification

             Measuring time

     Earth voltage : 3 times/second; Earth resistance: 15 seconds/time

             Data Storage

     400 sets, flash "FULL" symbol to indicate storage is full

             Data Hold

     Data hold function:"HOLD" symbol display

             Data Read

     Data read function: "READ" symbol display

             Overflow Display

     Exceeding measuring range overflow function: "OL" symbol display

             Circuit Voltage

     Measuring earth voltage : AC 600V MAX

             Auxiliary Earth Rod

     2 PCS: Φ10mm×150mm

             Testing Wires

     Five wires: each for Red 20m, yellow 10m, green 5m, red 1.6m, green 1.6m

             Interface

     USB interface,software supervision, storage data can be uploaded to computer, saved and printed;data transmission line length:1.5m

             Wire Resistance Verification

     Avoid errors caused by the test line not fully inserted into the instrument interface or poor contact or the user replaces the lengthened test line, ensure grounding resistance measurement more accurate

             Alarm Function

     Measuring value exceeds alarm setting value, will "Toot-toot-toot" alarm hint

             Auto Power-off

     10 Minutes after power on, will outage and automatic power off

             Battery Voltage

     While battery voltage decreases to around 7.8V, will display battery voltage low symbol, and reminding to replace the battery

             Overload Protection

     Earth resistance: between each interfaces of E-P,E-C, AC 280V/3 seconds

             Protection Level

     IP65(close the case status)

             Working current

     Backlight:25mA Max; System standby: 25mA Max(Backlight shut off);  Measurement:70mA Max(Backlight shut off)

             Accessories

     Tester:1PC; Earth Rod:2PCS;  Testing Wire:3PCS; Simple testing wire:2PCS; USB data transmission line :1PCS; Software disk:1PC; Tester bag:1PC; Special charger:1PCS