HT3020 Clamp Ground Resistance Tester is a new generation of groundless pile measurement method that our company's technical team meticulously developed. It uses a brand new generation of LCD, black screen backlight display and microprocessor technology to measure the grounding resistance through inductive method. When measuring a grounded system with a loop, it is not necessary to disconnect the ground lead wire, and no need for auxiliary electrodes. It is safe and fast. Widely used in telecommunications, electricity, meteorology, computer rooms, oil fields, power distribution lines, iron tower transmission lines, gas stations, factory grounding networks, lightning rods and so on. The instrument has the test precision, fast, simple , stable , reliable and other features
HT3020 Clamp Ground Resistance Tester is microprocessor controlled and accurately detects ground resistance. It uses a fast filtering technique to minimize interference. At the same time store 500 groups of data, with unique features such as numerical maintenance and intelligent alarm prompts
Resistance Range: 0-500Ω
New black screen design, luxury
Quick self-test function without waiting
Using fast filtering technology, strong anti-interference ability
New design, long life clamp head
500 sets of storage
II. Technical Specification
Function
Ground resistant test, Loop resistance test
Range
0.01Ω-500Ω
Resolution
0.001Ω
Accuracy
±1%±0.01Ω
Power Supply
DC6V Alkaline Dry Battery (1.5V LR6 X 4)
Measurement Method
Mutual induction
Clamp Diameter
55mmx32mm
Clock Function
Have
Display Mode
4-digit LCD display, black screen design
LCD Dimension
46mm×29mm
Meter Dimension
W/T/H: 85mm×58mmx285mm
Sampling Speed
About 2 times/second
Data Storage
500 Groups, the symbol "MEM" gives indication, "FULL" mark will flash to indicate the memory has been full
Data Review
"MR" symbol indication when reviewing data
Overflow Display
Exceed measurement range overflow function: "OL " symbol display
Test Method
Clamp CT, Integral Method
Interference Test
Automatic identify interference signal, "NOISE" symbol indication when the interference current is large
Alarm Function
Alarm when the measured value exceeds the alarm setting value
Battery Voltage
Real-time display of battery power, reminding timely charging when battery voltage is low
Automatic shut-down
"APO" instruction, automatic shutdown after 5 minutes boot
Power Consumption
50MA Max
Weight
Instrument: 1180g (with battery)
Working Temperature and Humidity
-10°C~40°C; below 80% rh
Insulation Resistance
20Ω or more (500V between circuit and outside)
Pressure Resistance
AC 3700V/rms(between circuit and outside)
Suitable for Safety Regulations
IEC61010-1(CAT III 300V, CAT IV 150V, Pollution Degree 2); IEC61010-031; IEC61557-1 (grounding resistance)