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臺(tái)灣標(biāo)準(zhǔn)電機(jī)SEW儀器儀表--2120 ER Earth Resistance Testers 3 Wire Digital

2120 ER Earth Resistance Testers
3 Wire (Digital)

FEATURES

Capable of measuring earth voltage.
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.
0 Ohm adjustment.
Data hold function.
Battery operated.
Battery life indicator.
Designed to meet ,CAT III 200V.
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) or +/- 0.1 Ohm, which is greater
	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 SUM-3 (AA) x 8 or equivalent
Dimensions	210(L) x 210(W) x 100(D) mm
Weight	Approx. 1395g (battery included)
Accessories	Test leads (AL-36 : red-15m, yellow-10m, green-5m)
	Simplified measurement probe
	Auxiliary earth spikes, shoulder belt
	Instruction manual, batteries

特點(diǎn)

● 供量測(cè)接地電阻(Ω)和接地電壓(ACV)。
● 量測(cè)電流僅有2mA，不會(huì)影響漏電斷路器的跳脫。
● 可作三線式或兩線式量測(cè)。
● 接線正確，在量測(cè)接地電阻時(shí)，紅燈(LED)會(huì)作顯示。
● 有0Ω歸零設(shè)計(jì)。
● 數(shù)值鎖定功能。
● 電源不足顯示。
● 請(qǐng)使用提供的測(cè)試線量測(cè)。
● 符合 CAT III 200V

規(guī) 格 (23°C±5°C ＜80%R.H.)

量測(cè)檔位	接地電阻 : 0-20Ω/0-200Ω/0-2000Ω 接地電壓 : 0-200V AC
準(zhǔn)確度	接地電阻 : ±(2%讀值+2位數(shù)) 接地電壓 : ±(1%讀值+2位數(shù))
接地電阻解析度	0-20Ω : 0.01Ω 0-200Ω : 0.1Ω 0-2000Ω : 1Ω
量測(cè)系列	820Hz 2mA定電流
顯示器	液晶顯示器(LCD)3位 Z大顯示1999
接線正確並作量測(cè)	紅燈(LED)會(huì)亮著
電量不足指示	LCD 上出現(xiàn) :符號(hào)
數(shù)值鎖定指示	LCD 上出現(xiàn) :符號(hào)
過(guò)載指示	LCD 上出現(xiàn) : 1
外形尺寸	210(長(zhǎng))×210(寬)×100(高)mm
重量	約1395克(含電池)
使用電池	1.5V (AA)×8(顆)