Rosemount OCX 8800, Instruction Manual

Page: 57 / 266

Instruction Manual
IM-106-880, Rev 2.1
April 2017
OCX 8800
3-5
Setting Test Gas Values with Fieldbus Communicator
1. Use the 375 Field Communicator software to access the Fieldbus menu.
2. From the TRANSDUCER menu, select O2 CAL.
3. From O2 CAL menu select O2 CAL SETUP.
4. From O2 CAL SETUP , select O2 HIGH GAS . Enter the percent O
2
used
for the high test gas.
5. From O2 CAL SETUP , select O2 LOW GAS . Enter the percent O
2
used
for the low test gas
6. From the TRANSDUCER menu select COe CAL SETUP .
7. From COe CAL SETUP , select COe Test Gas . Enter the CO
concentration (ppm) used for the COe Test Gas.
Setting Test Gas Values with the LOI
1. Use the "Z" pattern to enter the LOI menu tree.
2. From the SYSTEM menu, select Calib Setup .
3. From Calib Setup , select O2 High Gas % . Enter the percent O
2
used
for the high O
2
test gas.
4. Select the down arrow and the next selection will be O2 Low Gas % .
Enter the percent O
2
used for the low O
2
test gas.
5. Select the down arrow several times to display COe Test Gas . Enter the
CO concentration (ppm) used for COe test gas.
CALIBRATION
SOLENOIDS
The OCX 8800 can be provided with optional calibration solenoids for the
purpose of performing autocalibration. The solenoids are controlled by the
OCX 8800 software and automatically switch in the proper calibration gas
during the calibration cycle.
An OCX 8800 shipped from the factory with calibration solenoids must be
configured before autocalibration can be implemented. This same process
must be performed any time a replacement card stack is installed.
Configuring the Calibration Solenoids
with the Field Communicator - HART
1. Use the 375 Field Communicator to access the HART menu.
2. From the DETAILED SETUP menu, select CAL SETUP .
3. From the CAL SETUP menu, select O2 CAL PARAMS/COe CAL
PARAMS .
4. From the O2 CAL PARAMS/COe CAL PARAMS , select Solenoids .
Select Yes to enable the solenoids.
Configuring the Calibration Solenoids with the Field Communicator -
Fieldbus
1. Use the 375 Field Communicator to access the Fieldbus menu.
2. From the TRANSDUCER block menu, select O2 CAL/COE CAL .
3. From the O2 CAL/COE CAL menu, select O2 CAL SETUP/COE CAL
SETUP .
4. From the O2 CAL SETUP/COE CAL SETUP , select Solenoids . Select
Present to enable the solenoids.