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臺灣標(biāo)準(zhǔn)電機(jī)SEW儀器儀表--1824 LP Loop Testers

1824 LP Loop Testers

FEATURES

Measures earth resistance without the need for poles in the ground or external measuring wires.
Earth measurement uses the real earth current path and the current generated by the electric network, without the need for any disconnection.
The tester displays earth resistance. Where the earth current occurs is where the earth fault occurs. (you do not need to add all the bonding points and connection paths)
Dispalys voltage supply at the transformer (Line to Neutral), without loading the transformer.
Single One Samrt Push button operation; ON, Scroll through results and menus.
Checks wiring integrity (LEDs).
Auto-off/auto-ranging (software range).
Microprocessor controlled.
Combined Prospective Short Curcuit Current, Loop and Earth Tester.
Loop test for L-E and PSC between L-N.
Voltage test L-N.
Dispaly can be customized for large orders.
CAT III 300V.

The 1824 LP is the first of a new generation of instruments for the testing of electrical installations. It has a built-in Earth tester which does not require the use of poles or long wires. This instrument is useful for fault-finding or commissioning of electrical installations. This new instrument uses a three wire unique principle of operation.

It displays the main system voltage of the power utility without loading the wiring. The 1824LP displays the Loop Impedance between Line and Earth (Z L + Z E) = ZL-E and Prospective Short Circuit between Line and Neutral.

SPECIFICATIONS

Loop Impedance Range L-E	0.03 Ohm ~ 2000 Ohm (Software Ctrl)
Test Currents In Each Loop	11.76A at 230V/50Hz
Voltage Measurement	50 to 280V AC (Sine)
Earth Wire/Path Return Resistance	0.01 ~ 2000 Ohm (Software Ctrl)
Neutral Wire Resistance	(Not available, see 1826 NA)
Line Wire Resistance & transformer Windings	(Not available, see 1826 NA)
PSC Current (L-N) Max	6kA at 230Vac supply
PSC Current (L-E) Max	(Not available, see 1826 NA)
Operating Voltage	230V +/- 20 at 50Hz Sine
TYPICAL ACCURACY
Loop Impedance	4%rdg+/-2dgt
PSC Current	10%rdg+/-5dgt
Voltage	2%rdg+/-1dgt
Operating-Temperature-Humidity	-10 degree C to +40 degree C 80% max. relative humidity
Dimensions	170(L) x 165(W) x 92(D)mm
Weight	Appox. 970g (battery is included)
Power Source	1.5V (AA) x 8 batteries
Accessories	Test leads (AL-34)
	Shoulder belt (BET-1800)
	Instruction manual, batteries

特點(diǎn)

● 微處理器系統(tǒng)控制設(shè)計。
● 使用16字X2(行)的液晶顯示器。
● 自動換檔功能。
● 自動關(guān)機(jī)功能。
● 可以檢查線的狀況(LEDs指示)。
● 可作 L-E 的迴路測試。
L-N的預(yù)期短路電流
L-N的電壓量測
● 只需使用一個測試按鍵，即可進(jìn)行各項(xiàng)功能檢測。
● :
CAT III 300V

規(guī) 格 (23°C±5°C ＜80%R.H.)

迴路阻抗量測範(fàn)圍(L-E)	0.03-2000Ω(軟體控制)
測試迴路電流	11.76A at 230V / 50Hz
量測電壓	50 to 280V AC
接地電阻	0.01-2000Ω(軟體控制)
預(yù)期短路電流	6kA at 230Vac
操作電壓	230V±20V at 50Hz
迴路阻抗準(zhǔn)確度	±4%讀值±2位數(shù)
預(yù)期短路電壓	±10%讀值±5位數(shù)
操作電壓準(zhǔn)確度	±2%讀值±1位數(shù)
操作溫濕度	-10oC-40oC 80%Z大相對濕度
外形尺寸	170(長)×165(寬)×92(高)mm
重量(含電池)	約970克
使用電池	1.5V(AA)×8(顆)