Smart Sensor Ground Earth Resistance Tester 0.01-500Ω 500

The clamp-shaped ground resistance tester is controlled by a microprocessor to accurately detect the ground resistance. It uses a rapid filtering technology to minimize the interference. It is a commonly used and necessary instrument for telecommunication, electric , meteorology, engine room, oil field, electromechanical installation and maintenance as well as industrial enterprise departments using electric .



Features:

Easy to Operate: When measuring ground system with loop, there is no need to disconnect the ground wire without auxiliary electrode, safer and faster.

Precision Clamp Head Design: Using precision iron core and winding, stable, precise and strong anti-interference. Clamp Size: Φ1.26"(32mm), large jaws with double insulation for extra safety.

Data Storage Function: 500 sets of measurement results can be recorded, the "MEM" storage indication, flashing the "MEM" symbol indicating that the storage is full.

Multi Practical Functions: New design, panel operation with 6 buttons, better performance. With real-time clock, data storage, data access, alarm, automatic shutdown and other functions.

Widely Used: It is suitable for measuring all kinds of telecommunications, electric , meteorology, machine room, oil field, distribution lines, tower transmission lines, gas stations, factory grounding network, lightning rob and other grounding resistance.



Specifications:

Model: ST4100 / ST4800 (Optional)

Material: ABS

Function: Grounding resistance test, circuit resistance test, leakage current test

Environmental Temperature and Humidity: 23℃ ± 5℃, lower than 75%RH

Supply: 6V, 4 * 1.5V AA dry battery (not included)

Measurement Method: Mutual feeling way

Resistance Range: 0.010Ω-500Ω (ST4100), 0.010Ω-1200Ω (ST4800)

Resistance Resolution: 0.001Ω

Current Range: 0.00mA-30.0A (ST4800)

Current Resolution: 0.01mA

Clip Size: 55mm x 32mm

Time Clock Feature: Have

Ω + ASynchronous Display: Ω + AThe same screen display

Display Mode: 4-bit LCD display, black screen design

LCD Size: 46mm x 36mm

Measure Time: 1 Time/second

Data Storage: 500 groups, the "MEM" storage indication, flashing the "MEM" symbol indicating that the storage is full

Data Access: The "MR" symbol indicates when reviewing the data

Overflow Display: OL symbol indication when overrange overflow

Disturbed Test: Automatic identify the interference signal, indicating the "NOISE" symbol when the interference current is high

Alarm Function: Send an alarm prompt when the measured value exceeds the alarm set point

Cell Voltage: Battery is displayed in real time

Auto Shut Off: It can be set to 5, 10, 15, 20 minutes, OFF, OFF means to cancel the automatic shutdown, the default is 5 minutes

Dissipation: 115mA Max

Working Temperature and Humidity: -10℃~40℃; lower than 80%RH

Storage Temperature and Humidity: -20℃~60℃; lower than 70%RH

Insulation Resistance: 20MΩ above (Between the circuit and the housing 500V)

Withstand Voltage: AC 3700V/rms (Between the circuit and the housing)

External Magnetic Field: ＜40A/m

External Electric Field: ＜1V/m

Suitable For Safety Regulation: IEC61010-1(CAT III 300V, CAT IV 150V, degree of pollution 2); IEC61010-031; IEC61557-1 (earthing resistance)

Item Size: 295 * 85 * 58mm / 11.61 * 3.35 * 2.28in

Item Weight: 888g / 1.96lb

Package Weight: 1970g / 4.34lb

Package Size: 35 * 13 * 21cm / 13.78 * 5.12 * 8.27in



Package List:

1 * Earth Resistance Tester

1 * Aluminum Case

1 * Measuring Ring

1 * User Manual (English)