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MS2307 Advanced Earth Resistance Tester

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With the latest technology in a small-sized, robust and easy-to-use instrument, this series of earthing resistance tester is mainly used to test the earthing resistance of transformer, lightning-proof system, high-voltage power tower and telecommunication equipments, etc., providing a perfect solution for earthing-resistance test.

Overview
  • Ambient temperature and humidity for test: 0~40°C, <80%RH (without condensation
  • Temperature for battery charging: 10~40 ºC , < 80% RH
  • Storage temperature and humidity: -10~50 ºC , < 90% RH (without condensation)
  • Temperature & humidity for battery-pack storage: -20~30ºC, < 80% RH (without condensation)
  • Altitude for storage: < 12000 m
  • Altitude for operation: < 2000 m
  • Clamp Diameter: φ51mm
  • Display: LCD with backlight; Max. number: 9999
  • Overflow indication: > LIMIT
  • Underflow indication: "-"
  • Frequency for updating display:
    For earthing-resistance/leak-current: once per second (once in every four seconds if AVERAGE function is used )
    Detection of output voltage: twice per second
    Interference voltage: 4 time per second
    Interference frequency: once per second
    Interference current: once per second
  • Terminals:
    1) Resistance test:
    2) USB, charger
  • Power supply
    1) LR14 alkaline battery × 6; rated voltage: 1.5 V × 6
    2) Battery pack: rechargeable nickel - metal hydride batteries; rated voltage: 7.2 V
    3) Charger: rated input voltage: 100 ~ 240 V; rated frequency: 50 ~ 60 Hz; output voltage: 12 VDC 3A
  • Max. power consumption:
    15 VA (using charger)
    6 VA (using batteries or rechargeable battery pack)
  • Max. powering time: Alkaline battery: about 5 hours; battery pack: about 9 hours (with backlight turned off)
  • Max. input voltage: 250 V AC (50~400 Hz)
  • Max. rated voltage to earth: 300 Vrms (CAT III)
  • Insulation strength: 6880 VAC: 15 seconds
  • Overload protection: 250 VAC between terminals: 1 minute
  • Dimensions: About 260 (W)×125 (H)×280 (L) mm
  • Weight: About 2.5 kg
  • Applicable standards:
    1. Safety: EN61010-1:2001, EN61010-031:2002, Pollution degree 2; Measurement category III 300V;
    2. EMC: EMC: EN61000-3-2:2000 IEC61326-1: 1997 A grade
  • Testing earthing resistance, soil resistivity, interference voltage/interference/current
  • Compensating test-wire resistance
  • Data saving function: recording (100 records), deleting a single record, deleting all records, uploading data to PC
  • Clock
  • AVERAGE function for test data
  • ALARM function for input terminals
  • Charging battery
  • Auto powering-off
  • Safety rating: CE(EMC) ETL CAT III 300V RoHS
Features

Feature

Display Digital/analog dual display; LCD with backlight 9999
Color Display Auto Power Off  
Clock To display date and time  
To switch input-cursor position when changing date/time
AVG Indicatior for averaged-value measurement  
RK                                                 Compensation Resistance  
Limit Limit Value  
Alarming indicator for limit-value measurement  
Battery capacity indicator  
Display Backlight Display Backlight  
Length Testing length between resistivity testing point  
Data Storage 100 groups Measurement Can Be Memorized  
USB  USB2.0 Interface  

 

Specs

Specification Range Accuracy

3 Pole & 4 Pole   Earthing-Resistance Test Test Voltage: AC20/48V  
Test Frequency: 94Hz/105Hz/111Hz/128Hz/AFC  
Earthing-Resistance Test 0.1Ω~30KΩ
Selective mode(3 pole+  /4 pole+) Test Voltage: AC20/48V  
Test Frequency: 94Hz/105Hz/111Hz/128Hz/AFC  
Earthing-Resistance Test 0.1Ω~10KΩ
Non-auxiliary-polar mode(   ) Test Voltage: AC48V  
Test Frequency: 94Hz/105Hz/111Hz/128Hz/AFC  
Earthing-Resistance Test 0.1Ω~150Ω
2 Pole R~ Test Voltage: AC20V  
Test Frequency: 94Hz/105Hz/111Hz/128Hz/AFC  
Earthing-Resistance Test 0.1Ω~30KΩ
2/4 Pole R  Test Voltage: AC20V  
Earthing-Resistance Test 0.1Ω~3KΩ
Interfering Voltage /Current /Frequency Interfering Voltage : 1~5V DC/AC  
Interfering Frequency : 16Hz~400Hz  
Interfering Current : 20mA~2A  
Soil Resistivity ρ Test Voltage: AC20/48V  
Test Frequency: 94Hz/105Hz/111Hz/128Hz/AFC  
Range : 0.02Ω•m~1000kΩ•m  
RK(Wire Compensation) Test Voltage: AC20/48V  
Test Frequency: 94Hz/105Hz/111Hz/128Hz/AFC  
Range :  0.1Ω~30Ω
Short Circuit Current   ≤100mA

 

Accessories
  • Chip*4
  • Charger (Optional)
  • USB Cable
  • User manual
  • Test wire*4
  • Voltage clamp cable
  • Alkaline battery*6
  • Voltage Transformer φ51mm
  • Current clamp cable
  • Rechargeable Ni-MH battery (optional)
  • Prob*4