ค้นหาสินค้า
บริการ
-
Multimeter
-
LCRMeter
-
Spectrum Analyzer
-
Oscilloscope
-
Vector Network Analyzer
-
Function generator
-
Audio Signal Generator
-
Frequency counter
-
RLC Dc Decade Resistance Box
-
Programmable electronic
-
Slide Voltage
-
Lab power supply
-
Clamp on meter
-
Power Analyser
-
Ultrasonic Flow Meter
-
Earth and Soil resistivity
-
Insulation tester
-
milliohm and microohm resistance tester
-
Impulse Winding Tester
-
Safety Tester/Hipot Tester
-
Tachometer Stoboscope
-
Vibration Meter
-
Anemometer
-
Sound meter
-
Lux meter
-
Water Quality Meter
-
Air Environment
-
Hygrometer Thermometer
-
Multifunction / Installation Tester
-
RF Spectrum Analyzer
-
Thermal Image camera
-
Infrared thermometer
-
EMF Spectrum Analyzer
-
Solar cell & Photovoltaic system
-
Calibrator
-
Battery Tester
-
High Voltage Hotline Tools
-
Miscellaneous Meter
-
Trainer Laboratory
-
Transformer Turns Ratio Meter
-
Insulation Oil Tester
-
Accessories
สมัครงาน
ลิ้งก์ภาพ
MTD20KWe : เครื่องวัดความต้านทานดินแบบ4สาย (Wenners method), up to 20 kOhm
ข้อมูลสินค้า
-
รหัสสินค้า
MTD20KWe
-
เข้าชม
1,851 ครั้ง
ยี่ห้อ
TENTECH
รุ่น
MTD20KWe
-
แก้ไขล่าสุดเมื่อ
29/04/2019 15:25
-
รายละเอียดสินค้า
MTD20KWe : Digital earth tester, 4 pole ground resistivity measurement (Wenner’s method), up to 20 kOhm
Features : ▪ Digital and automatic ▪ 3½ digits display ▪ Earth resistance measurement ▪ 4 pole ground resistivity measurement (Wenner’s method) ▪ Spurious voltage measurement ▪ High spurious voltage rejection ▪ Audible signal indicates anomalies in ▪ the current circuit ▪ Resolution : 0.01 Ω ▪ Resistance reading : up to 20 kΩ ▪ Rechargeable battery ▪ Battery check Specifications : Application : Measurement of grounding resistances (3 terminals), soil resistivity (4 terminals) and spurious voltages present in the soil. Resistance measurement method : The equipment injects an electronically stabilised current in the soil, and measures, with high precision, the voltage developed in the soil by means of that current flowing through grounding diffusion resistances. Display shows the Resistance value. Immunity to interference : Operation frequency : 1,470 Hz This operation frequency complies with the equation: fg = [(2n + 1)/2] x fi Where: fg = frequency of the current generated by the earth meter. n = integer number. fi = industrial frequency (50 or 60 Hz) The compliance with this equation implies that the operation frequency will not coincide with any harmonic of the industrial frequency, in order to minimise the effect of parasitic currents present in the surveyed soils, by means of the use of appropriate filters. Operation as a voltmeter : In the voltmeter function, the equipment operates as a AC conventional voltmeter, making it possible to check the presence and to measure voltages generated by parasitic currents. Measurement ranges : Resistances: 0-20 Ω; 0-200 Ω; 0-2,000 Ω; 0-20 kΩ Tension: 0-200 V~ Accuracy : Resistances measurements : ± (2% of the measured value + 1% of the maximum value of the selected range). Voltage measurements : (2% of the measured value + 1% of end of scale value). Reading resolution : 0.01 Ω in the resistance measurement. 0.1 V din the voltage measurement. Output power and current : The output power is less than 0.5 W, and the output current is is limited to less than 15 mA (Peak to peak). Audible alarm : It warns the operator in case that there are abnormalities in the current circuit, which make it difficult to obtain a reliable result. Power supply : By means of an internal rechargeable battery, from a 12 V external battery. Battery charger : A smart, microprocessor controlled, circuit adjusts the battery charge to the optimised parameters in order to ensure the maximum service life. It is supplied by means of an external AC adapter (provided with the equipment) or from a 12 V car battery. Operation temperature : -10°C to 50°C Storage temperature : -25°C to 65°C Humidity : 95% RH (without condensation) Equipment weight : Approx. 2.3 kg Dimension : 221 x 189 x 99 mm Accessories : 4 Steel rods (50 cm) 1 Rod extraction tool 1 AC adapter for the battery charger 1 Connection cable to use an external 12 V battery (car battery or similar) to charge the internal battery 1 40m red lead (on spool) 1 20m blue lead (on spool) 1 20m green lead (on spool) 1 5m black lead 1 5m green lead 1 Mallet 1 Tape measure 1 Carrying bag 1 User guide
Tags : MTD20KWe : เครื่องวัดความต้านทานดินแบบ4สาย (Wenners method) , up to 20 kOhm