Pressure Calibration
- Place the Pressure Probe into a known low pressure (600 to 800 HPa)
- Enter the known pressure value into the First Point Actual Value box
- Click on the First Point button
- Place the Pressure Probe in a known higher pressure (Atmospheric Air Pressure if known)
- Enter the second known pressure value into the Second Point Actual Value box
- Click on the Second Point button
- Click on the Write Unit, Scaling and Calibration Values to logger button
- The Calibration process is now complete
Example
- Place the Pressure Probe into a known low pressure (870 HPa)
- Enter the 870 into the First Point Actual Value box
- Click on the First Point button
- Place the Pressure Probe in a known higher pressure (Atmospheric Air Pressure - in this case 1008hPa)
- Enter 1008 into the Second Point Actual Value box
- Click on the Second Point button

- Click on the Write Unit, Scaling and Calibration Values to logger button
The Calibration process is now complete
To check the calibration
- Go to the Realtime screen
- Place the Pressure Probe into a known low pressure (870 hPa)
- The Pressure gauge on the Realtime screen should show 870 hPa
- Place the Pressure Probe in a known higher pressure (Atmospheric Air Pressure - in this case 1008hPa)
- The Pressure gauge on the Realtime screen should show 1008 hPa