Emerson Rosemount OCX8800 Quick Start Manual page 42

Quick Start Guide
5.2.2 Autocalibrate using the Field Communicator - Fieldbus
To initiate an automatic calibration using the Field Communicator,
perform the following steps:
Procedure
1. From the Transducer screen, select Methods.
2. Select OCX Calibration from the Methods menu.
3. From the OCX Calibration menu, select the type of calibration
desired:
•
•
•
5.3 Manual calibration
If a transmitter is not equipped with calibration solenoids, an
operator must calibrate by following prompts from the transmitter.
5.3.1 Calibrate manually using the optional local operator interface
(LOI)
Once the operator initiates the manual calibration procedure at
the LOI, a series of prompts will appear giving instructions to the
operator.
Procedure
1. Press Right to select the CALIBRATION first column submenu.
2. From the CALIBRATION submenu, press Right to select the Cal
Control second column submenu.
3. From the Cal Control submenu, press Right to select the third
column Start Cal O
4. Remain at Start Cal O
or Start Cal Both.
The following sequence applies when you select Start Cal
Both.
5. Press Right to start the calibration. Turn on the low O
gas, when prompted by the Flow Low Gas message.
6. Press Right after applying the low O
The calibration data changes as the calibration proceeds.
7. Press Right when the low O
O
the Flow High Gas message.
42
Calibrate O2 Sensor
Calibrate Combustibles Sensor
Calibrate Both Sensors
test gas and turn on the high O
2
option.
2
or press Down to select Start Cal COe
2
reading is stable. Turn off the low
2
2
test gas.
2
test gas as prompted by
Rosemount OCX8800
July 2023
test
2