Endress+Hauser Levelflex FMP51 Operating Instructions Manual page 79

Levelflex FMP51, FMP52, FMP54
Endress+Hauser
After mounting the rod probe in the stilling well or bypass, check and - if necessary - correct the
setting of the reference distance in the unpressurized state. Whilst doing so the level should be at
least 200 mm below the reference distance L
Step Parameter
1 Expert ® Sensor ® Gas phase compensation
® GPC mode
Expert ® Sensor ® Gas phase compensation
2
® Present reference distance
Expert ® Sensor ® Gas phase compensation
3
® Reference distance
For a detailed description of all parameters concerning the gas phase compensation see:
GP01001F, "Levelflex - Description of device parameters - PROFIBUS PA"
Commissioning via operating menu (On-site display, FieldCare)
to achieve maximum accuracy.
ref
Action
Select the "On" option in order to activate gas phase
compensation.
Check whether the displayed reference distance matches the
nominal value (300 mm or 550 mm, respectively; see the
nameplate).
If yes: nor further actions required.
If no: continue with step 3.
Enter the value indicated in "Present reference distance".
79