B. Braun Dialog+ - Calibration Degassing Pressure Sensor PE for Machines at

4. TSM Service Program 1/2010 4 - 123
BA-TE-DE08W M.KAY Dialog+ SW9xx_SM_Chapter 4-3-1_1_2010.doc/pdf <110301> yymmdd B. Braun Avitum AG
Dialog
+
SW 9.xx
4.8.3.5.1 Calibration Degassing Pressure
Sensor PE for Machines at High
Altitudes of >1,000 m
For calibration point -400 mmHg/-530 mbar
If the Dialog machine is used at high altitudes (>1,000 m above sea level), an
offset of +75 mmHg/+100 mbar per 1000 m must be used for the calibration
of the degassing pressure sensor PE.
Measurement unit mmHg
1,000 m altitude: –325 mmHg (–400 mmHg + 75 mmHg offset = –325 mmHg)
2,000 m altitude: –250 mmHg (–400 mmHg + 150 mmHg offset = –250 mmHg)
3,000 m altitude: –175 mmHg (–400 mmHg + 225 mmHg offset = –175 mmHg)
Measurement unit mbar
1,000 m altitude: –430 mbar (–530 mbar + 100 mbar offset = –430 mbar)
2,000 m altitude: –330 mbar (–530 mbar + 200 mbar offset = –330 mbar)
3,000 m altitude: –230 mbar (–530 mbar + 300 mbar offset = –230 mbar)
Example for Calibration at 1,000 m
Altitude
1. Clamp tubing at filter degassing pump FEP.
2. Clamp tubing between degassing bypass valve VEB and degassing
pressure sensor PE and pull off tubing from the degassing pressure sensor
PE.
3. Connect a manometer and a syringe to the PE sensor, using a Y-piece and
extra tubing.
PE Calibration Point -400 mmHg
–530 mbar
4. Press the Degassing Pressure PE key.
5. Use syringe and create a negative pressure, e.g. at 1,000 m altitude:
• –325 mmHg ±10 mmHg (-400 mmHg plus offset +75 mmHg/1,000 m)
• -430 mbar ±13 mbar (-530 mbar plus offset +100 mbar/1,000 m)
6. Press
key.
7. Enter the stable reference value:
• –325 mmHg ±10 mmHg (-400 mmHg plus offset +75 mmHg/1,000 m)
• –430 mbar ±13 mbar (-530 mbar plus offset +100 mbar/1,000 m)
Wait until digits are stable.
8. Confirm with
key.
PE Calibration Point 0 mmHg
0 mbar
11. Remove syringe (0 mmHg/0 mbar).
12. Press
key.
13. Enter 0 mmHg/0 mbar.
Wait until digits are stable.
14. Confirm with
key.
15. Confirm and store complete calibration procedure with
key.
Note: The calibration data is saved only after the bit sequence 0-1-0 (for
detailed information see 4.8.3.1 General Calibration Information).
16. Remove calibration devices.
17. Reconnect tubings.