Vacuum capacitance pressure gauge

Vacuum capacitor pressureCalculation Description

The PT124B-212 capacitive pressure gauge uses highly stable capacitive sensitive components with excellent overvoltage resistance and long-term stability, making it suitable for precision vacuum measurement that is crucial for process control in the photovoltaic, semiconductor, and industrial markets. Advanced manufacturing technology and processes ensure repeatability in application scenarios. The working voltage of this pressure gauge is 24V DC, with a standard (0~10) V DC analog output signal, full-scale measurement, and a usable range of 1Torr (133Pa) to 10Torr (1.33kPa).

Main features

Industry standard connector

High precision: standard ± 0.5% reading, optional ± 0.25% reading

Precision membrane ensures excellent performance

Wide range of working temperature compensation

Low circuit noise and fast response

Not easily affected by changes in environmental conditions

Excellent anti overvoltage design

Precautions and installation requirements

Precautions

1. The selected power supply should be compatible withVacuum capacitance pressure gaugeThe input power supply is consistent;

2. The shielding layer of the shielded cable should be connected to the common terminal power supply of the power supply;

3. This seriesVacuum capacitance pressure gaugeThe wiring should be connected according to the wiring diagram and confirmed to be correct before powering on!

4. Do not plug or unplug the plug when powered on;

5. After using the product, unplug the power supply

Please carefully read this user manual to ensure safe and correct use of this product

Installation requirements

1. It should be installed vertically upwards;

2. During the disassembly and assembly process, care should be taken to handle with care and avoid collisions to prevent instrument errors. Otherwise, recalibration is required before use;

3. It cannot be installed in a vibrating position. If it must be installed in a vibrating position, please connect it with a vacuum hose to provide shock absorption.

Vacuum capacitance pressure gaugeCalibration operation instructions

1. Calibration preparation

2. Remove the window protection buckle corresponding to 0.5T, 5T, and 10T adjustment;

3. Prepare a small screwdriver.

Calibration operation

1. Adjust the external air pressure to 0.5T, wait for 1 minute for the air pressure to stabilize, and then use a small screwdriver to rotate the 0.5T potentiometer clockwise half a turn and then back half a turn;

2. Adjust the external air pressure to 5T, wait for 1 minute for the air pressure to stabilize, and then use a small screwdriver to turn the 5T button;

3. Adjust the external air pressure to 10T, wait for 1 minute for the air pressure to stabilize, and then use a small screwdriver to rotate the 10T potentiometer clockwise for half a turn and then back for half a turn;

4. After completing the above three steps, the calibration is complete.

Precautions for calibration operation

1. During the calibration process, it is necessary to wait for 1 minute for the external air pressure to stabilize before rotating the 0.5T and 10T potentiometers or turning the 5T button. After the 10T calibration is completed, the transmitter automatically saves the recorded data.

2. If it is necessary to recalibrate the 0.5T or 5T pressure points, the 10T pressure also needs to be recalibrated (the 10T potentiometer also serves as a storage function)