How to perform accurate calibration of vacuum pressure controller?

A vacuum pressure controller is a special device used to monitor and regulate the air pressure in a vacuum system. It automatically adjusts gas flow through components such as sensors, control valves, actuators, and circuits to maintain stable pressure within the system.

Working principle of vacuum pressure controller:

1. Pressure detection: The sensor monitors the system pressure and transmits the signal to the control circuit.

2. Control circuit: The core part processes sensor signals and calculates the gas flow rate that needs to be adjusted.

3. Adjust gas flow: Through control valves and actuators, the gas flow is automatically increased or decreased based on calculation results to maintain system pressure stability.

Calibration of vacuum pressure controller:

Calibration requires special equipment, including precision pressure gauges, standard air sources and testing instruments. Here are the steps:

1. Preparation: Make sure the calibration equipment is calibrated and check the status.

2. Set conditions: Set calibration conditions according to requirements, such as target pressure value and error tolerance.

3. Perform calibration: Connect the device, gradually adjust the pressure, and observe the controller response.

4. Record and evaluate: Record data and evaluate compliance with standards and performance requirements.