成全视频在线观看免费高清动漫,在线不卡日本V一区二区 ,精品三级久久久久久久电影

臺灣標準電機SEW儀器儀表--1820 ER Earth Resistance Testers 3 Wire Digital

1820 ER Earth Resistance Testers
3 Wire (Digital)

FEATURES

Capable of measuring earth voltage (Vac).
2mA measuring current permits eath resistance to test without tripping earth leakage current breakers in the circuit.
Test leads are supplied as standard accessories for simplified two-wire measuring system.
Data hold function.
Battery operated.
CAT II 300V.
Calibration performed with supplied test leads.

SPECIFICATIONS

Measuring Ranges	Earth Resistance : 0-20 Ohm/0-200 Ohm/0-2000 Ohm
	Earth Voltage : 0-200V AC (40-500Hz)
Accuracy	Earth Resistance : +/- (2%rdg+2dgt)
	Earth Voltage : +/- (1%rdg+2dgt)
Earth Resistance Resolution	0-20 Ohm (0.01 Ohm)
	0-200 Ohm (0.1 Ohm)
	0-2000 Ohm (1 Ohm)
Measuring System	Earth Resistance by constant current inverter 820 Hz approx. 2mA
Low Battery Indication	symbol appears on the diaplay
Data Hold Indication	symbol appears on the display
Over Range Indication	"1" (MSD)
Open Circuit Indication	LED will be unlit
Display LCD	LCD 3-1/2 digit (2000 counts)
Power Source	1.5V (R6P) x 8 Type AA
Dimensions	170(L) x 165(W) x 92(D) mm
Weight	Approx. 1050g (battery included)
Accessories	Test leads (AL-36 : red-15m, yellow-10m, green-5m)
	Auxiliary earth spikes
	Simplified measurement probe, shoulder belt
	Instruction manual, batteries

特點

● 可供量測接地電阻和接地電壓。
● 量測電流僅有2mA,不會影響漏電斷路器的跳脫。
● 可作三線式量測或兩線式量測。
● 讀值鎖定功能。
● 使用電池操作。
● 電源不足顯示。
● 請使用提供的測試線測試。
● :
CAT II 300V

規(guī) 格 (23°C±5°C ＜80%R.H.)