Electric Contact Pressure Gauge produced by Beijing Pute Instrument Complete Set Factory < Widely used in petroleum , chemical industry, metallurgy, electric power, machinery and other industrial sectors or mechanical and electrical equipment supporting equipment to measure the pressure of various fluid media without explosion hazard -:.
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-:dd- -d>Usually
d- -d>Instruments
d- -d>are connected with corresponding electrical devices> (such as relays and frequency converters etc.>) can be used in conjunction with
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-dd- -d> to achieve automatic control and signaling (alarming) of the pressure system being measured (controlled).
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-dd- -d>The electric contact pressure gauge consists of
d- -d>measuring system
d- -d>, indicating system, and magnetic assist It consists of electrical contact device, shell, adjustment device and junction box (plug socket).
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-dd- -d>The working principle of the electric contact pressure gauge is based on the spring tube in the measuring system forcing it under the pressure of the measured medium
d - - d>The end of the spring tube
d- -d> produces a corresponding elastic deformation. A displacement is transmitted through the gear transmission mechanism with the help of the pull rod and is amplified. The indication on the fixed gear (together with the contact) gradually sets the measured value at It is indicated on the dial. At the same time, when it contacts (opens or closes) the contact (upper limit or lower limit) on the setting pointer, the circuit in the control system can be disconnected or connected to achieve automatic control and send an alarm. Purpose.
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- . dd d -d -- . d - -d>Electrical
d - -d>Contact
d - -d>Technology
/>d - -d>Parameter
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-dd- -d>Operating voltage> (maximum>):D
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- dd- -d>Maximum operating current>:
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-dd- -d>Continuous current>.
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-dd- - d>Maximum power>:
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-dd- -d>Operating temperature of electric contact pressure gauge-< ℃>~< ℃
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-dd- -d>The upper limit of working pressure: not greater than the upper limit of the instrument>/
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-dd- -d>The vibration frequency of the working environment is not greater than>the amplitude is not greater than>.
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- . dd d -d -- . d - -d>Electrical principles
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-dd- -d>To control Take the compressor motor as an example: when the gas storage pressure reaches the lower limit, it automatically turns on and when it reaches the upper limit, it automatically stops.
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-:dd- -d>The control process is as follows: when the pressure reaches (or is low and when starting up) the lower limit, the movable contact of the electric contact pressure gauge (the common terminal of the power supply) The relay is connected with the lower limit contact and operates and self-locks. Its normally open contact is closed to drive the motor and the motor is powered to run. When the pressure reaches the upper limit, the movable contact and the upper limit contact are connected to the relay > operate its normally closed contact to disconnect and cut off > supply power and its normally open point is disconnected > release the motor to stop. In this way, the purpose of automatic control is achieved.
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-> 瀹嬩綋-:Electrical circuit connection diagram
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-> 瀹嬩綋-: In the picture: <瀹嬩狋>, <瀹嬩綋>< Relays and contacts
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瀹嬩綋-:< Contactors and contacts<瀹嬩綋>r < Thermal relay
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瀹嬩狋-:< Motor<瀹嬩狋>< Electrical contact pressure gauge
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