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Function: Grounding resistance, soil resistivity, DC resistance, grounding voltage, AC current, leakage current measurement
Power Supply: DC 9V (alkaline dry battery LR14 1.5V 6 knots, continuous standby 300 hours)
Backlight: Controllable blue backlight, suitable for use in dark place.
Measuring Mode: Precision four-wire, three-wire method measurement, simple two-wire, selection method, double clamp method to measure grounding resistance
Measuring Method:
- Two-three four-wire method measurement: pole-changing method, measuring current 20mA Max
- Selection method measurement: pole-changing method, measuring current 20mA Max
- Double clamp method: non-contact mutual inductance measurement, test current 1mA Max
- Soil resistivity: quadrupole method (Wenner method)
- DC resistance: pole-changing method
- AC current: average rectification (clamp)
- Ground voltage: average rectification (between P(S)-ES interfaces)
Test voltage waveform: sine wave
Test frequency: 128Hz/111Hz/105Hz/94Hz (automatic frequency selection)
Short circuit test current: AC 20mA max
Open circuit test voltage: AC 40V max
Electrode spacing range: 1m ~ 100m
Display Mode: 4-digital super-large LCD display with backlight
Measuring indicator: During measurement, LED flash indicator, LCD count down display
LCD dimension: 128mm×75mm；Display field:124mm×67mm
Dimension: L×W×H: 215mm×190mm×95mm
Current clamp size: L×W×H: 185mm×115mm×43mm
Testing wires: Four wires: each for Red 20m, Black 20m ,Yellow 10m, and Green 5m
Simple testing wire: 2 wires: each for Red 1.6m and Green 1.6m
Auxiliary earthing rod: 4 PCS：Φ10mm×150mm
Current clamp: 2 PCS: each for blue black plug, red black plug
Current clamp diameter: Φ68mm
Current clamp turns ratio: 1000:01:00
Current clamp lead length: 2m
Measuring time:
- AC current: about 2 times/s
- Voltage to ground: about 2 times/s
- Earth resistance: about 7s/times
Measuring Times: Over 5000 times (Short circuit test , stop 30 seconds after one test )
Circuit Voltage: Measuring voltage to ground: measuring 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: 2000 sets, “MEM” icon to indicate storage, “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
Current clamp low current indication: When the selection method or double clamp method is used, when the current signal received by CT2 is lower than 0.5mA, the symbol is displayed. In this case, check the clamping direction of CT2 current clamp.
Interference test: Automatic identification of interference signals, "NOISE" symbol indication when the interference voltage is higher than 5V
Auxiliary grounding test: With auxiliary grounding resistance test function, 0.00kΩ~30.00kΩ (100R+rC<50kΩ, 100R+rP<50kΩ)
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 charge.
Auto power off: automatically shuts down after 15 minutes of power on
Power Consumption:
- Backlight: 25mA Max. (backlight power consumption)
- Standby: 25mA Max. (Backlight shut off)
- Measurement: 150mA Max. (Backlight shut off)
Weight:
- Total: 8.05 kg (with accessories)
- Tester:1653g (including battery)
- Current clamp: 1050g (2 PCS)
- Testing Wires: 1560g(including simply testing wires)
- Auxiliary earthing rod: 935g (4 PCS)
Working Temperature & Humidity: -10℃~40℃:; below 80%rh
Storage temperature & humidity: -20℃~60℃; below 70%rh
Overload Protection: Measuring earth ground resistance: between each interfaces of C(H)-E, P(S)-ES, AC 280V/3 seconds
Insulation Resistance: Over 20MΩ(between circuit and enclosure it is 500V)
Withstanding Voltage: AC 3700V/rms (Between circuit and enclosure)
Electromagnetic characteristics: IEC61326(EMC)
Suitable for safety regulations:
- IEC61010-1 (CAT III 300V, CAT IV 150V, pollution degree 2); IEC61010-031;
- IEC61557-1 (earth resistance);
- IEC61557-5 (soil resistivity);
- JJG 366-2004 (earth resistance meter)
- JJG 1054-2009 (clamp earth resistance meter)
