Vôn Kế Dc 2.5-30v Hai Dây Đèn Led 0.36 Inch
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Giới thiệu Vôn Kế Dc 2.5-30v Hai Dây Đèn Led 0.36 Inch
description:1. The wiring of this voltmeter is simple, and two wires are conventionally used, the red is connected to the positive, and the black is connected to the negative. There is reverse connection protection inside, and the reverse connection will not burn.
2. Conventionally, no external working power supply is required, and it can work directly with the measuring voltage, and the measuring voltage range is 2.5-30V in two wires.
3. Wide voltage operation, red, low 2.5V and large safety pressure up to 40V, more than 40V may be damaged.
4. When measuring voltage below 10V, two decimal places are displayed; when measuring voltage above 10V, one decimal place is displayed.
5. For other requirements or test ranges (four-wire 0V-500V), please contact customer service.
parameter:
Measuring range: second-line DC2.50～32.0V
Power supply range: no separate power supply is required, the measured voltage is less than 40V, and it may be damaged if it is higher than 40V
Test accuracy: ±3‰ >10V, the error is plus or minus 0.2V, <10V, plus or minus 0.03V
Input impedance: >50KΩ
Working current: <30mA
Refresh speed: about 100mS once
Lead length: default 10cm
Dimensions: 33 x 15 x 10 mm (without mounting ear 23mm)
Hole size: Hole distance: 28mm Hole diameter: Φ2.8mm
Net weight: 4.7g
Working temperature: -10 ～ +80℃
Working humidity: 10 ～ 80%
Working pressure: 80 ～ 106kPa
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