亚洲国产精品毛片AV不卡在线,国产又粗又紧又爽又黄的免费视频 ,欧洲一本到卡二卡三卡免费乱码

^{<noscript id="j4qv9"></noscript>}

1826 NA 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 Earth Resistance displayed is exactly the earth resistance that the earth current will need to go through is an earth fault occurs. (you do not need to add all the bonding points and connection paths resistances)
Dispalys voltage supply at the transformer (Line to Neutral) without loading the transformer.
Displays voltage between Line (phase) and Earth (Ground) without drawing any current.
Measures the Impedance of the Line itself so you can analyzes and differentiate between the multiples paths of the wiring.
Measures the Neutral Impedance.
Single One Smart Push button operation; ON, Test, Scroll through results and menus.
Checks wiring integrity (LEDs).
Auto-off/auto-ranging (software ranging).
Microprocessor controlled.
Combined Prospective Short circuit Current, Loop, individual wire and Earth Tester.
Voltage test L-N and L-E.
Loop test for L-E and L-n and PSC.
Enables analysis of consituent components in L-E and L-N loops giving resistance of earth, neutral wire, live wire and transformer winding.
Test leads, shoulder belt user is manual, batteries included.
The Display can be customized for large orders.
CAT III 300V.

The 1826 NA is the first portable electrical network analyzer. 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.

Differentiation between the Line (hot), Neutral and Earth (ground) path by reading their values has never been so easy. Bad contacts, old wiring or bad earth path are quickly identified. Faulty electrical network can be resolved in a fraction of the time normally required using conventional equipment.

Down time due to a faulty electrical network is minimal as the fault can be identified and diagnosed quickly. Find which wire need to be attended to and why (find those old wires with high impedance before a fire starts, and replace them). The complete electrical network can be analyzed by scrolling though the results.

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 L-E. L-N	50 to 280V AC (Sine)
Earth Wire/Path Return Resistance	0.01 - 2000 Ohm (Software Ctrl)
Neutral Wire Resistance	0.01 - 2000 Ohm (Software Ctrl)
Line Wire Resistance & transformer Windings	0.01 - 2000 Ohm (Software Ctrl)
PSC Current (L-N) Max	6kA at 230Vac supply
PSC Current (L-E) Max	6kA at 230Vac supply
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

● 微處理器系統(tǒng)控制設(shè)計。
● 採用寬廣的16字×2(行)的液晶顯示器。

● 可以檢查線的狀況。
● 自動換檔功能。
● 自動關(guān)機功能。
● 可量測 L-E和L-N的交流電壓
L-E和L-N的阻抗
L-E和L-N的預(yù)期短路電流
E.N.L的阻抗
● 只需使用一個測試按鍵，即可進行各項功能檢測。
● 可儲存前一次的量測值。
● 電池耗電量微小。
●
CAT III 300V

規(guī) 格 (23°C±5°C ＜80%R.H.)

迴路阻抗量測範圍	0.03-2000Ω
測試迴路電流	11.76A at 230V/50Hz
量測電壓(L-N.L-E)	50-280V AC
預(yù)期Z大短路電流(L-N)	6KA/230V AC
預(yù)期Z大短路電流(L-E)	6KA/230V AC
操作電壓	230V±20V/50Hz
迴路阻抗準確度	±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)