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數位自動接地測試器

TENTECH Digital Earth Ground Tester 型號：MTD20KWe

數位自動式。
3½位數顯示幕。
接地電阻測量。
4極式土壤電阻率測量（Wenner法）。
接地電壓（雜訊）測量。
高雜訊電壓抑制的先進濾波技術。
以音頻信號指示電流電路中的異常狀況。
解析度0.01Ω。
電阻讀值可達20kΩ。

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產品特點產品規格 Features Specifications

- 數位自動式。
- 3½位數顯示幕。
- 接地電阻測量。
- 4極式土壤電阻率測量（Wenner法）。
- 接地電壓（雜訊）測量。
- 高雜訊電壓抑制的先進濾波技術。
- 以音頻信號指示電流電路中的異常狀況。
- 解析度0.01Ω。
- 電阻讀值可達20kΩ。
- 可充電電池。
- 系統介紹：
  - 適用於簡單快速的測量在住宅/工業建築物、醫院設施、避雷針、天線、變電所等的接地電阻。
  - 土壤電阻率測量功能，便於進行土壤分層建模，可使高度複雜的接地系統設計，達到最理想的程度。
- 應用：3端式測量接地電阻，4端式測量土壤電阻率及土壤中存在的寄生電壓。
- 干擾耐受性：操作頻率1470Hz。
- 作為電壓計使用：可檢查由寄生電流產生的電壓的存在及測量。
- 測量範圍：
  - 電阻：0～20Ω；0～200Ω；0～2,000Ω及0～20kΩ。
  - 電壓：0～200V。
- 精度：
  - 電阻測量：±（2% rdg.+所選擇範圍的最大值的1%）。
  - 電壓測量：±（2% rdg.+末端刻度值的1%）。
- 讀值解析度：
  - 電阻測量：0.01Ω。
  - 電壓測量：0.1V。
- 輸出功率及電流：輸出功率＜0.5W，輸出電流限制為＜15mA（峰值-峰值）。
- 電池狀態檢測：可驗證一般使用條件下的電池電荷狀態。
- 聲音警報：警告操作員在電流電路中有異常狀況。
- 電源：內部可充電電池或外部12V電池。
- 詳細規格、配件、軟體及選購，歡迎洽詢。
- Digital and automatic
- 3½ digits display
- Earth resistance measurement
- 4 pole soil resistivity measurement (Wenner method)
- Ground voltage (noise) measurement
- Advanced filtering for high noise voltage rejection
- Audible signal indicates anomalies in the current circuit
- Resolution: 0.01 Ω
- Resistance reading: up to 20 kΩ
- Rechargeable battery
- System Overview:
  - This equipment is suitable for fast and easy measurement of the grounding resistance in residential and industrial buildings, hospital installations, lightning rods, antennas, substations, etc.
  - Furthermore, its soil resistivity measurement capabilities allow for soil stratification modelling in order to optimize the design of highly complex grounding systems.
- Application: Measurement of grounding resistances (3 terminals), soil resistivity (4 terminals) and spurious voltages present in the soil.
- Immunity To Interference: Operation frequency 1470Hz
- Operation As An Voltmeter: In the voltmeter function, the equipment operates as an 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 and 0-20 kΩ
  - Voltage: 0-200 V~
- Accuracy:
  - Resistances measurements: ± (2% of the measured value + 1% of the maximum value of the selected range).
  - Voltage measurement: ± (2% of the measured value + 1% of end of scale value)
- Reading Resolution:
  - 0.01Ω in the resistance measurement.
  - 0.1V in the voltage measurement.
- Output Power And Current: The output power is less than 0.5 W, and the output current is limited to less than 15 mA (Peak to peak)
- Battery Status Checking: It makes it possible to verify the battery charge status under normal use conditions.
- 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.
- Please feel free to contact for detailed specifications, accessories, software and options.

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數位自動接地測試器

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