Georg Fischer Ppr
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How to test the current on a motor?
- Oscilloscope sensitivity is very high, there are tens of MV signal can be stable observation, if elected 5A out of 100mVThere are: 0.1V/5A=0.02 europe.For such a small resistance, the motor running state has little influence, if there is no instrument to do the measurement, you can take the current voltage method,Is to use a section of wire, through the 5A, and then measured the voltage =100mV at both ends of the wire, do not meet the change of wire length.s
How much power does a computer power 297W require?
- Genuine 300W not 2 floor is a look at the white.At the very least, the 400W is rated and is slightly above grade!s
Measurement of AC and DC dual-use electrical instruments, overload ability of the instrument for?
- This is the moving coil instrument, which means the electronic device, do not make a mistake.s
How can the clamp meter measure current and measure overload current?
- A gauge for measuring current and how to measure an overload current:1 will be moved to AC current clamp meter gear top position (maximum current clamp meter must be 1.25 times higher than the load current)2 each phase of the current is measured, the current in the rated range is its load current, more than the rated value, the current is its overload current.s
Digital caliper table GT201, pliers table GT201 how to use?
- This makes it easy to read AC current values. It also has alternating current, voltage, and resistance files. These files are the same as an ordinary digital multimeter. There are not many more about it. I hope I can help yous
What kind of appliances are these? What role does it play? Not how the measured current clamp meter?
- The relay is used as protective and breaking circuit, and the current parameter is usually marked on the top, and the unit is A.s
30mA leakage breaker trip home is always with what method to find the leakage point, with clamp ammeters how?
- Check the leakage with shaking table or pointer multimeter 10K resistor file. In the case of power failure, the insulation resistance between the fire line and the ground wire of each branch is measured. When there is leakage, the meter will indicate a relatively small resistance value and the insulation will indicate infinity.s
Who can specifically describe the automatic conversion range function, and some automatic?
- On pass test: on line test means that when the resistance of the line under test is lower than that of the buzzer, the buzzer will alarm. The utility model has the advantages of an operator does not need to observe the display of LCD value, just stare at the measured line and pen, voice alone can judge the on-off circuit. Not only the operation is simple, but also can greatly shorten the detection time, improve work efficiency!s