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EM4055 : เครื่องวัดความต้านทานดิน (Wenner's method), Up to 20 kOhm, Built-in printer (optional)
ข้อมูลสินค้า
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รหัสสินค้า
EM4055
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เข้าชม
1,939 ครั้ง
ยี่ห้อ
TENTECH
รุ่น
EM4055
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แก้ไขล่าสุดเมื่อ
04/07/2016 10:15
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รายละเอียดสินค้า
EM4055 : Earth resistance tester and Ground resistivity (Wenner's method), Up to 20 kOhm, Built-in printer (optional)
Features : ▪ Earth resistance measurement ▪ Ground resistivity (Wenner's method) ▪ High spurious voltage rejection ▪ Spurious voltage measurement ▪ 0.01 Ω resolution ▪ Up to 20 kΩ resistance range ▪ Auto-range ▪ Alphanumerical display ▪ Heavy duty equipment ▪ Automatic interference detection Specifications : Operation frequency : During R measurement, operator should select the following test frequencies: 270 Hz ± 1 Hz or 1470 Hz ± 1 Hz. Voltmeter : In the voltmeter function, the equipment operates as a CA conventional voltmeter, making it possible to measure- voltages generated by parasitic currents. Measurement ranges : Resistance : 0 - 20 kΩ (autoranging). Resistivity : 0 - 50 kΩm (autoranging). Voltage : 0 - 60 V~. Accuracy : Resistance and Resistivity measurements : ± (2% of the measured value ± 2 digits). Voltage measurement : ±(3% of the measured value ± 2 digits). Reading resolution : 0.01 Ω in the resistance measurement. 0.01 Ωm in the resistivity measurement. 0.1 V in the voltage measurement. Output current : The short-circuit current is limited to less than 3.5 mA R.M.S. (according the IEC 61557-5 - 4.5). Imunity to spurious voltage During the R measurement, it allows the presence interference : of spurious voltage up to 7 V~. Earth resistance of In the R measurement it allows Raux up to 50 kΩ with error < 30%. auxiliary rods : Battery status checking : The battery charge status is verified under normal using conditions. Advanced features : Automated detection of abnormal conditions that may cause excessive errors (low battery, too high noise interference, too high test spikes resistance). Soil resistivity computing : When performing soil resistivity measurements, the operator informs to the EM-4055 the distance between spikes and the equipment automatically computes soil resistivity using the Wenner full equation. Data output : USB interface Built-in printer (optional) : For a printed register document of measured values. Power supply : Internal rechargeable battery, 12 V - 2.3 Ah. Battery charger : For 100-240 V~ mains supply. Safety class : It meets the requirements of IEC 61010-1:1990, IEC 61010-1:1992 amendment 2. E.M.C. : In accordance with IEC 61326-1. Electrostatic immunity : In accordance with IEC 1000-4-2. Electro magnetic irradiation immunity : In accordance with IEC 61000-4-3. Environmental protection : IP54 with closed lid. Operation temperature : -10°C to 50°C. Storage temperature : -25°C to 65°C. Humidity : 95% RH (without condensation). Equipment weight : Approx. 3.6 kg (without printer). Dimensions : 274 x 250 x 124 mm. Included accessories : 4 steel rods. 1 rod extractor. 1 charger power cord. 1 40 meters cable. 2 20 meters cable. 1 5 meters cable. 1 5 meters cable to connect to the grounding system to be measured. 1 USB cable. 1 canvas bag. 1 user guide.
Tags : EM4055 : เครื่องวัดความต้านทานดิน (Wenner's method) , Up to 20 kOhm , Built-in printer (optional)