Electric Static Converter

Hot Products

FAQ

How to use the car fuel pressure gauge?
Usage method:(1) start the engine and switch to the normal operating temperature, turn off the engine, and then remove all the spark plugs when the engine is stopped;(2) the solar term valve is fully opened, the pressure gauge connecting head is pressed on the spark plug on;(3) use a motor to rotate the engine at 100 150r / min speed for 3 to 5 seconds. At this point, the pointer on the instrument will gradually rise, to a certain value that will stop, at this point the indicator value is the compression pressure of the cylinder;(4) press the button to make the pointer zero;(5) repeat the measurement 2~3 times according to the above procedures to improve the measurement accuracy.(6) general car cylinder pressure >0.9MPa and delta <8% (pressure of each cylinder, gasoline engine cylinder average pressure of not more than 8%).If the measured value is smaller than the specified value, and the intake system is normal, it can show that the cylinder and piston, cylinder head leakage, the original cylinder, piston, valve, piston ring wear, ablation and other undesirable situation. If the measured value is greater than the specified value, and the intake and exhaust system is normal, the possible cause is the serious carbon deposition in the combustion chamber.
What is the maximum allowable error of a precision pressure gauge of 0.4? How to calculate?
The accuracy level of a pressure gauge is divided by the percentage of its allowable error to the dial scale value, and the greater the accuracy grade, the greater the allowable error limit for the dial scale. The greater the measuring range of the pressure gauge, the same accuracy level of the pressure gauge, the absolute value of the pressure measurement it allows, the greater the error.Often use the pressure gauge diameter of 60 precision grade 2.5, dial diameter phi 100/150 accuracy of 1.6, level 1, diaphragm pressure meter accuracy is 2.5 grade, precision pressure meter accuracy: 0.4, 0.25.Allowable error of pressure gauge = range X (+ precision level)Example: the error rating of a pressure gauge is 0.4, and the range is 1MpaAllowable error of pressure meter = range X (+ precision level) =1Mpa * + 0.4%= + 0.004Mpa
The indicator of the extinguisher pressure gauge points to green, indicating whether the extinguisher pressure is normal or not?
Green indicates normal pressure; yellow indicates lack of pressure; please note that red indicates a severe lack of pressure
What's the difference between the pressure gauge and the bellows pressure gauge?
Big differenceThe bellows gauge is only one of the pressure gaugesA pressure gauge is a general term
It is better to explain in principle what parts are not resistant to heat What happens if you measure a high temperature medium? Is it just inaccurate or will there be parts damage?
The definition of high temperature is uncertain. You can look at the parameters of the pressure gauge
Is the pressure meter the same as the pressure meter?
Generally, the pressure gauges are relative to the atmospheric pressure, so the pressure difference meter is also used. There is very little comparison between meter and absolute vacuum, do you think so?
Are you talking about using a gold contact? I'm a small relay for 24V. Do you need a gold contact?Let's talk about it.
No gold is necessary for contacts.1. The action of a contact on a pressure meter is equivalent to a switch used to conduct or disconnect the circuit. It does not require a power supply. The maximum operating voltage is 380V, and it can also be used for 220V or 24V (including AC and DC).2. Electric contact pressure gauge in the work process, will not contact in contact contact, due to voltage, spark will contact between the spark can burn contacts, lead oxide, so the electric contact pressure gauge work after a period of time will produce the phenomenon of bad contact, and can work normally after cleaning contact.3. In order to make the electrical contact work long time, it is important to note that the work power of the coil of the small relay in the back shall be controlled below 30W, otherwise it will burn up easily (contact power rating 30W).4. What material to choose contact is to consider comprehensively, choose pure gold or pure silver, only contact resistance is small, other aspects will not do.
Band sawing machines sometimes fail to rise, sometimes very slowly, and sometimes pressure gauges have no pressure
For many reasons, there may be oil change or insert the owl problem, to find the best manufacturers see sawing machine.