Serinus® 30 User Manual 3.3
Note: Ensure that the instrument has been running for at least one hour before any calibration is
performed to ensure sufficient stability.
Note: Ensure units of measure are the same on both the barometer and instrument.
Equipment Required
• Barometer
Procedure
1. Disconnect any external tubing connected to the rear of the instrument.
2. Open - Main Menu → Calibration Menu → Pressure Calibration - (read displayed note) - OK.
Note: Entering this menu will switch OFF the internal pump and place the valve sequencing on
hold; normal sampling will be interrupted.
3. Refer to Figure 115. Connect a barometer to the Sample Port.
Figure 115 – Pressure Calibration (Internal Pump Option Only) Set-up
4. Edit - Vacuum Set Point - (read displayed instruction) - OK.
5. Wait 2 - 5 minutes and ensure the pressure reading on the barometer is stable.
6. Enter the barometer reading into the instrument - Accept.
7. Read displayed instructions - OK.
8. The pump should now stop automatically. Disconnect the barometer from the Sample Port.
9. Wait 2 - 5 minutes and enter the ambient barometer reading into the instrument - Accept.
Note: Both cell and ambient pressure sensors should now be displaying the current ambient
pressure and they should be the same value within 3 torr of each other.
10. Back - Pressure Calibration Menu - (read note) - OK.
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