Working principle of electric contact seismic pressure gauge
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Experts, I saw a pressure gauge at the company today that seems a bit different from ordinary ones. Those who know how it works could please explain briefly. Thank you!
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Electrical contact seismic pressure gauge~~It is generally used in conjunction with electrical components such as relays and frequency converters. For example, in a gas storage tank, when the pressure is low, the electrical contacts activate the compressor; when the pressure is high, they stop the compressor~~
Thank you. This is used for refueling on-site; it probably automatically replenishes the fuel level when it drops to a certain level
It’s simply that as the pressure increases, the pointer of the pressure gauge causes the electrical contact to turn on and off
When selecting electrical contacts, try to avoid those that are filled with oil, as this can easily lead to poor contact and accidental operation.
Working principle of the seismic electric contact pressure gauge: The pointer of the pressure gauge and the set-point pins are equipped with contacts respectively. When in use, first the upper and lower limit values are set; the contacts on the pointer come into contact with those on the upper and lower limit pins, and through the electrical circuit an alarm signal is sent out by the indicator light. The change in the pressure being measured can also be controlled through an electrical circuit equipped with relays and contactors, so as to keep it within the set upper and lower limits. Electrocontact pressure gauges are divided into direct-acting and magnetically assisted direct-acting types. The setting range of the electric contact pressure gauge is between 5% and 95% of the upper measurement limit.
How is it done to set the upper and lower limits for an oil-filled shock-resistant electrical contact pressure gauge? Won’t there be oil leakage at the setting knob? Is it operated using a magnetic connection method?
This is quite simple; it’s just about closing and opening a circuit due to electric shock
I just want to ask whether it is reliable to use M20*1.5 gauge thread for the pipe thread of a 4-way ball valve? ?
The exact dimensions are unknown; it is clear that it was not designed professionally