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Configuration and start-up
April 2023
2. From the DETAILED SETUP menu, select CAL SETUP.
3. From the CAL SETUP menu, select O
4. From the O
3.5.2
Configure the calibration solenoids with the Field
Communicator - F
Procedure
1. Use the Field Communicator to access the Fieldbus menu.
2. From the TRANSDUCER block menu, select O
3. From the O
4. From the O
3.5.3
Configure the calibration solenoids with the LOI
Procedure
1. Use the Z pattern to enter the LOI menu tree.
2. From the SYSTEM menu, select Calib Setup.
3. From the Calib Setup menu, select Use Solenoids. Select Yes to enable the solenoids.
3.6
Blowback feature
The blowback feature blows instrument air back through the center of the internal filter
and out the sample tube of the probe. This removes built up dirt and particulate from the
internal filter, sample line, and any optional in-situ filter on the end of the sample tube.
The blowback feature is normally used in systems that have heavy particulate in the
process stream. The blowback feature requires the optional blowback hardware to be
properly installed external to the transmitter. A Rosemount OCX8800 shipped from the
factory must be configured before blowback can be implemented. This same process must
be performed any time a replacement card stack is installed.
3.6.1
Configure blowback with the Field Communicator - HART
Procedure
1. Use the Field Communicator or AMS software to access the HART menu.
2. From the DETAILED SETUP menu, select INPUT/OUTPUT.
3. From the INPUT/OUTPUT menu, select BLOWBACK.
4. From the BLOWBACK menu, select BlBk Enabled. Select Yes to enable blowback. Also
50
CAL PARAMS/COe CAL PARAMS, select Solenoids. Select Yes to enable
2
the solenoids.
OUNDATION
CAL/COE CAL menu, select O
2
CAL SETUP/COE CAL SETUP menu, select Solenoids. Select Present to
2
enable the solenoids.
set the following parameters:
•
BlBk Intrvl: Length of time between blowback events (60 minutes
recommended).
•
BlBk Period: Length of time blowback is activated (five seconds recommended).
•
BlBk Purge Time: Length of time after blowback is complete before oxygen /
combustibles readings are considered valid (set as required by the application).
CAL PARAMS/COe CAL PARAMS.
2
Fieldbus
™
CAL/COE CAL.
2
CAL SETUP/COE CAL SETUP.
2
Manual
00809-0500-4881
®
Emerson.com/Rosemount
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