Wrindu

High-End Ideal Ground Resistance Clamp Meter

The high-end ideal ground resistance clamp meter has a streamlined design that ensures quick, precise results without disconnecting leads. Suitable for diverse equipment.
Model: RDER2200

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OVERVIEW

Wrindu high-end ideal ground resistance clamp meter is a professional instrument that supports accurate measurement of ground resistance (0.010Ω~1500Ω), loop resistance, and current (0.000mA~40.0A) measurements. When testing a loop grounding system, there is no need to disconnect the grounding lead and the auxiliary grounding electrode. You can quickly and safely obtain the measurement results by clamping on the grounding lead. The displayed value is the combined value of the grounding body and the grounding lead resistance. The instrument can detect grounding faults that traditional methods cannot measure. It is suitable for scenarios that are difficult to cover with conventional means. It is widely used in the grounding resistance measurement of various types of equipment, which can improve measurement efficiency and ensure safe use.

 

CHARACTERISTIC

 

  • 1. Users can choose different display modes, such as resistance and current, resistance and time, and current and time, and all this information can be displayed on the same screen.
  • 2. Wide measurement range and low energy consumption.
  • 3. Ability to store up to 999 sets of data.
  • 4. Uses NiMH rechargeable batteries.
  • 5. The high-end ideal ground resistance clamp meter includes monitoring software that allows real-time monitoring, historical data query, alarm setting, data reading and saving, and report generation.

 

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FAQ

 

Q:Which one is the easiest method for earth resistance measurement?

A: The easiest method for earth resistance measurement is often considered the Clamp-On Method (Stateless Method). This method uses a clamp-on ground resistance tester that can be easily clamped around the grounding conductor without driving stakes into the ground.

 

Q: What is a good earth resistance value?

A: Recommended earth resistance values vary based on standards. NFPA and IEEE suggest 5.0 ohms or less. NEC (250.56) specifies system impedance to ground less than 25 ohms; it’s advised to maintain 5.0 ohms or less for sensitive equipment. Always adhere to specific standards and codes for accurate compliance.

 

Q: What is the difference between earth resistance and earth electrode resistance?

A:

Earth Resistance:
– Definition: Total opposition to current flow through the grounding system.
– Measurement: Considers all system components.
Earth Electrode Resistance:
– Definition: Resistance specific to the grounding electrode only.
– Measurement: Focuses solely on electrode resistance.

Technical Parameters

PictureHigh-end Multifunction Earth Resistance Tester Clamp Type
ModelRDER2200
Resistance Range0.01Ω~1500Ω
Resistance Resolution0.001Ω
Resistance Max Accuracy± (1%+0.01Ω)
Current Range0.00mA~40.0A
Current Resolution0.001mA
Current Max Accuracy± (1.5%+0.5mA)
Data Storage999 groups
InterfaceUSB interface, software monitoring, data upload computer, dynamic display
Self-test Time≤1s, Boot into the test mode quickly
Working Current≤50mA
Operation Button6 soft keys, better performance
Communication Cable length1.5m (USB cable)
Clock FunctionDisplay hour and minute
Audible and VisibleAlarm“Beep — beep — beep” alarm sound, press the AL key to turn on and off; LCD alarm flashing indication
Alarm threshold setting rangeResistance: 1~199Ω; Current: 1~499mA
power supply3.7VDC (Rechargeable lithium batteries 2600mAh)
Auto Power OffThe instrument flashes 30S after 5 minutes without any operation, and then auto power off
Working Temperature-20℃ ~ 55℃; 10%~ 90% RH
LCD Size47mm×28.5mm
Clamp Size65mm×32mm
Clamp Opening Size32mm
Tester Weight1160g
Tester Size285mm×85mm×56mm
Protection LevelDouble insulation
Structural FeaturesClamp CT
ShiftAuto Shift
External Magnetic Field, Electric Field<40A/m; <1V/m
Single Measurement Time0.5s
Resistance Measurement Frequency>1KHz
Measured Current Frequency50/60Hz Auto

 

Measurement Range & Accuracy

ModelRDER2200
MeasurementRangeResolutionAccuracy
Resistance0.010Ω ~ 0.099Ω0.001Ω± (1% rdg + 0.01Ω)
0.10Ω ~ 0.99Ω0.01Ω± (1% rdg + 0.01Ω)
1.0Ω ~ 49.9Ω0.1Ω± (1% rdg + 0.1Ω)
50.0Ω ~ 99.5Ω0.5Ω± (1.5% rdg + 0.5Ω)
100Ω ~ 199Ω± (2% rdg + 1Ω)
200Ω~ 395Ω± (5% rdg+5Ω)
400Ω~ 590Ω10Ω± (10% rdg+10Ω)
600Ω~ 880Ω20Ω± (20% rdg+20Ω)
900Ω~ 1500Ω30Ω± (25% rdg+30Ω)
Current0.000mA~0.999mA0.001mA± (1.5%+0.5mA)
1.00mA~9.99mA0.01mA± (2%+1mA)
10.0mA~99.9mA0.1mA± (2.5%+5mA)
100mA~299mA1mA± (2.5%+20mA)
0.30A~2.99A0.01A± (2.5%+0.1A)
3.0A~9.9A0.1A± (2.5%+0.3A)
10.0A~19.9A0.1 A± (2.5%+0.5A)
20.0A~40.0A0.1 A± (3%+1A)

 

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