How to properly use and maintain the fresh air lock automatic vacuum
packaging machine relay;
Air vacuum packaging of mechanical and electronic magnetic relay as well as any other control elements, has its own advantages and disadvantages.
How to correctly use and maintenance of the relay, can give full play to its advantages against its disadvantages?
a, the use of the relay specification
vacuum
packaging machine relay as the main control components or auxiliary switch components, to strictly abide by the specification to use it, in order to ensure reliability and service life.
Use specification mainly refers to the use condition, contact capacity and coil parameters.
1, using a variety of relay affinity specifications are stated explicitly in the terms of the use of the device, namely that it is suitable for working in what kind of environment.
PR101 type relay, for example, the use of the condition is: temperature -
0℃~40℃;
When humidity is equivalent to in temperature 40 ℃ relative humidity is eighty percent;
The atmospheric pressure 650060 millibars.
2, box
packing machine using a relay contact capacity, should attach great importance to contact rated capacity, including rated voltage and rated current, hypercharged use is not permitted.
If hypercharged use, has a great influence on the life of the relay will be;
Serious hypercharged, the relay will be quickly damage.
Such as relay contact PR101 rated working voltage of dc 60 v, use 100 v, dc voltage of working current is zero.
3 (Ann
The perceptual load)
。
3, work as a packaging machinery relay coil parameters generally refers to the wire diameter, number of turns, resistance, rated voltage or current and power consumption, pull-up ampere-turns, release ampere-turns forces, pull-up time and release time.
2, how to properly use and maintain the fresh air lock automatic vacuum packaging machine relay?
Contact the protection of the
automatic packaging machine relay is to use contact switch circuit.
In use process, easy to contact electric erosion and dust, cause the disorder.
Here are some measures to protect contact, for your reference.
1, solve the problem of vacuum packaging machine relay electric erosion
vacuum packaging machine relay contact, general department of silver contact (through your fingers
Some relay also use the material such as platinum, tungsten, platinum and iridium)
。
Sometimes we find that although, in accordance with the provisions of the correct use of technical conditions, there are still some contact, before far did not achieve its proper mechanical wear, appears sag, cause poor contact.
This is television.
Electric erosion occur, it is because of the relay circuit, switch contact are mostly perceptual load;
Disconnect the perceptual load moment, the magnetic energy stored in it can produce high on both ends of contact back emf, breakdown of contact between the breath, the formation of ion flow, impact contact, this kind of ion flow, we customarily called & other;
Spark & throughout;
。
2, solve the problem of dust
dust is one of the important factors affect the contact barrier rate, should be taken seriously.
The general idea is to add dust cover, reduce dust deposition.
Some of the relay, factory production has been sealing in the dust cover (one by one
Such as PR401 type electromagnetic relay)
, easy to use.
If a single relay originally no dust cover (
Such as PR101 type)
, when using, can respectively installed on the outside of the machine plate machine plate of dust cover.
Contact use after a period of time, the surface will generate a layer of black oxide film.
If not clear in time, will also affect the quality of the machine.
Therefore, should be regularly cleaned with carbon tetrachloride liquid, keep good touch point contact.
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