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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 ℃)
| Function |
Range |
Resolution |
Accuracy |
|
Earth Resistance |
20 ohm |
0.01 ohm |
± ( 2% rdg + 0.1 ohm )@ 0 to 19.99 ohm |
| 200 ohm |
0.1 ohm |
| 2 K ohm |
1 ohm ( 0.001 K ohm ) |
± ( 2% rdg + 3 d ) |
| Earth Voltage |
200 ACV ( 50, 60 Hz ) |
0.1 V |
± ( 1% rdg + 4 d ) |
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(02)2226-7567(代表號)
