Pressure controller working principle and installation adjustment

Working principle of pressure controller

This equipment is an automatic controller that can receive pressure signals and perform actions based on the range value at the same time. It also has a pressure setting function so that the adjustment parameters can be changed at any time according to actual application requirements in the future. The working principle of the pressure controller is that when the pressure value of the system reaches or exceeds the set upper limit value, it can automatically cut off the loop and stop the system equipment immediately, so it also plays a role of automatic protection. If the pressure of the system recovers below the lower limit set by the pressure controller, it will automatically turn on the circuit and start normal operation.

To put it simply, when the pressure of a certain device is higher than a value, and we want the device to automatically stop working and play a protective role, then this function reflects the practical value of the pressure controller Up. For example, if the upper limit of this value is 5Mpa, you can choose to use a controller that can adjust the range from 0 to 10Mpa, adjust the set value to the alarm value, which is the aforementioned 5Mpa, and then install it into the system. The specific working principle is also the same as mentioned before. When the working pressure reaches 5Mpa, it will be automatically disconnected, and when the working pressure is below 5Mpa, it will resume automatic operation.

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Pressure controller installation instructions

1. When installing the equipment in an outdoor environment, ensure that protective measures must be in place to avoid drastic changes in ambient temperature and direct radiation from the sun, as well as corrosive gases, water and other substances from entering the interior.

2. The selected pressure controller is best to adjust the preset value to the middle value of the available range, generally it is adjusted to about 20% to 80% of the range, and the on-off circuit cannot be greater than the rated value.

3. When installing the cable, it is necessary to select the appropriate outer diameter of the cable, and at the same time tighten the compression nut at the cable lead-in to avoid loosening and prevent the penetration of water and dust.

4. When installing the pressure controller, special attention must be paid. A wrench must be used to clamp the flat part of the sensor, and the relative rotation of the sensor and the switch housing must be prevented.

5.If the interface of the sensor is in the shape of internal thread, the depth of the pipe joint rotating into the inside cannot exceed 12 mm.

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Pressure controller adjustment method

First open the cover of the device, then pass the cable through the cable interface and connect it to the terminal board. The other end of the cable needs to be connected to the multimeter. Secondly, we rotate the adjustment screw of the pressure controller setting value in a clockwise direction, (for example) change the setting value from large to small until the switch contacts switch at the value of 1.5Mpa. Finally, tighten the locker to adjust the pressure value of the pressure calibration table, let the pressure change back and forth between the lower and upper ranges of 1.5Mpa, and verify whether the switching value of the contact is at 1.5Mpa when the pressure rises, and this value is the so-called upper The switch value (upper limit) automatically executes the standard of disconnection, and its corresponding lower switch value (lower limit) when it is lower than the standard to resume automatic work is 1.5Mpa minus the switch difference 0.9Mpa, which is about 0.6Mpa.

The above is the working principle and installation adjustment of the pressure controller, I hope to help everyone.okplazas.com Motor Mall is a professional agent selling controller products. Welcome to email: [email protected] for consultation, and you can also contact WeChat customer service +86-13689242098 online for product consultation!