臺灣SEW數(shù)字式接地電阻測試儀8020 ER

時間：2015-3-27 14:56:44 點擊：

　　核心提示：FEATURES●Capable of measuring earth resistance and earth voltage.● 2mA measuring current permits the...

FEATURES

● Capable of measuring earth resistance and earth voltage.
● 2mA measuring current permits the testing of
   earth resistance without tripping earth
   leakage current breakers in the circuit under test.
● Frequency : 820Hz.
● 0Ω adjustment.
● Battery operated.
● Data hold function.
● Low battery indication.
● Calibration performed with supplied test leads.
● Simplified measurement probe is also provided
   for two-wire measuring method.

SPECIFICATIONS

Measuring ranges	Earth resistance 0-20Ω / 0-200Ω / 0-2000Ω Earth voltage 0-200 Vac (40-500Hz)
Accuracy	Earth resistance ±(1.5%rdg+2dgt) or ±0.1Ω, which is greater Earth voltage ±(1%rdg+2dgt)
Earth resistance resolution	0-20Ω : 0.01Ω 0-200Ω : 0.1Ω 0-2000Ω : 1Ω
Testing frequency	820 Hz
Measuring system	Earth resistance by constant current inverter 820Hz approx 2mA.
Display	3 digit (2000 counts)
0Ω adjustment	V
Open circuit indication	LED will be unlit
Low battery indication	" " symbol appears on the display
Data hold indication	" " symbol appears on the display
Over range Indication	“1”(MSD)
Dimensions	221(L) × 110(W) × 57(D)mm
Weight (battery included)	Approx. 600g
Power source	1.5V (AA) x 6
Safety standards	I