Airt Digital Barometer/Air Pressure Sensor is an air pressure measuring instrument independently developed by Airt Automation Equipment. It is a high-precision barometer integrating air pressure measurement and display. It has anti-vibration, high display accuracy and high stability It can be reset and other features.

Name of each part

wiring

1. Be sure to perform wiring work with the power supply turned off

2. Please confirm the power fluctuations and ensure that the input power does not exceed the rated range

3. If the power supply device uses a commercially available switching regulator, be sure to ground the power frame ground terminal (F.S.)

4. If noise-producing equipment (switching regulator, inverter motor, etc.) is used near the installation of this sensor, be sure to ground the ground terminal (F.S.) of the equipment frame

5. For the wiring of the sensor, please avoid running parallel with high-voltage lines, power lines, etc., or use the same wire conduit for wiring. Otherwise, it may cause malfunction due to induction.

6. Miswiring will cause malfunctions

connection

Do not directly subject the lead-out part and connector part of the cable to stress

installation

Please use the separately sold sensor mounting bracket MS-FP-04/05. When installing the sensor with a mounting bracket, etc., the tightening torque should be less than 0.5N.m.

The panel mounting bracket MS-FP-01/02 (sold separately) and the front protection cover MS-FP-03 (sold separately) are also available.

condition

The power cord connecting the sensor should be shorter than 10m

The signal wire connecting the sensor should be shorter than 10m

take over

When the pressure hole is connected to a commercially available joint, use a 12mm wrench to tighten the hexagonal part of the pressure hole. The tightening torque during installation should be less than 9.8N.m. If the tightening torque is too large, it may damage a commercially available joint or pressure hole. In addition, seal tape should be wrapped around the joint during connection to prevent leakage.

other

Please use within the rated pressure range

Do not exceed the pressure resistance of this product when applying pressure, otherwise the diaphragm will be damaged and the product will not work normally.

When using, please avoid the transient state (0.5S) when the power cord is turned on

Do not use in places with a lot of steam, dust, etc.

Do not use this product in direct contact with organic solvents such as thinners, or water, oil, and grease.

Do not put iron wire and other objects into the pressure hole, otherwise it will damage the diaphragm and make the product unable to work normally

Do not use sharp objects such as needles to operate the buttons

About RUN mode

It's a normal working mode

About the menu setting mode

In RUN mode, press and hold the mode switch button for 2 seconds to switch to the menu setting mode

If you press and hold the mode switch button during the setting process, you can return to the RUN mode, and the changed items will be set at this time.

About PRO mode

In RUN mode, press and hold the mode switch button for 5 seconds to switch to PRO mode

During the setting process, if you press and hold the mode switch button, you can return to the RUN mode, and the changed items will be set.

MODBUS protocol communication description

Operation instructions for barometer address change

Press the MODE button for 4s to enter the PRO setting menu, press the MODE button until the addr menu appears, and adjust the address through the up and down keys

06H instruction: when the written value exceeds the range, the function code feedback is 96, when the register address exceeds the range, the function code feedback is 86