ET-3000 接地電阻計

特色

• 具有測量接地電阻極大地電壓功能

• 測量範圍： 接地電阻 0.01 ~ 1999歐姆 ±2% , 大地電壓 0 ~ 199.9V ±1%

• 手動關機及自動關機功能

• 讀值鎖定及過載保護功能

• 遙測端子 Size：160 X 120 X 65mm

FEATURES

► Earth Resistance and Earth Voltage measurement.

► 3 ranges for earth resistance measurement 19.99 ohm, 199.9 ohm, 1.999 K ohm.

► 0 to 199.9 V for earth voltage measurement.

► 18 mm, large size LCD display.

► Data hold.

► Built-in over input indication.

► Durable & portable housing plastic case with the front protective cover.

► Complete testing accessories included.

一般規格

顯示 (Display)

18 mm (0.7") LCD ( Liquid Crystal Display). Max. indication 1999.

功能 (Function)

Earth Resistance & Earth Voltage measurement.

反應時間 (Response Time)

4 seconds on earth resistance range approximately.

1 seconds on earth voltage range approximately.

輸入端子 (Input Terminals)

3 terminal input ( E/P/C Terminals ).

過載輸入指示 (Over input Indication)

Indication of " 1 . ".

資料鎖定 (Data Hold)

To freeze the display reading value.

安全標準 (Safety Standard)

IEC1010.

過載保護 (Overload Protection)

* 200V AC for 10 seconds across 2 of the 3 terminals for Earth Resistance measurement.

* 300V AC for 1 minute on Earth Voltage range.

 絕緣電阻 (Insulation Resistance)

More than 5 Meg ohm between the circuit and the housing case when measured with 500 DCV.

電源管理 (Power Management)

Manual power On/Off or auto power Off within 2 minutes after power On.

操作溫度 (Operating Temp.)

0 to 50 ℃ ( 32 to 122 ℉ ).

操作溼度 (Operating Humidity)

Less than 80 % R.H.

電源供應 (Power Supply)

DC 9V, 1.5V AA ( UM-3) batteries x 6 PCs. @ Alkaline or heavy duty battery.

電源損耗 (Power Consumption)

Earth Resistance

* Approx. 74 mA for stand-by condition

* Approx. 84 mA for ON condition

@ at 1,900 ohm on 2,000 ohm range

Earth Voltage

Approx. 82 mA for stand-by condition.

體積 (Dimension)

160 x 120 x 65 mm ( 6.3 x 4.7 x 3.3 inch )

重量 (Weight)

Approx. 560 g (1.2 LB).

附件 (Standard Accessories)

Plug with alligators clips ( Red, Green, Black )

* Red wire with red plug AL-3KR................................. 1 PC

* Green wire with Green plug AL-3KG................................. 1 PC

* Black wire with black plug AL-3KB................................. 1 PC

Auxiliary Earth Spikes SP-3K.......................................2 PCs

Carrying case ( CA-3K )................. 1 PC

電氣規格 ( 23 ± 5 ℃)