5.5.4 Manual O
2
and COe Calibration using the Field Communica-
tor - HART
To perform a manual O
2
and COe calibration using the Field Communicator or AMS, use the
following procedure. If necessary, refer to Section 6, Field Communicator, for the HART menu
tree.
NOTE:
To select a menu item, either use the up and down arrow keys to scroll to the menu item and
press the right arrow key or use the number keypad to select the menu item number.
To return to a preceding menu, press the left arrow key.
1. Select DIAG/SERVICE from DEVICE SETUP menu.
2. Select CALIBRATION from the DIAG/SERVICE menu.
3. Select CAL CONTROL from the CALIBRATION menu.
4. Select CAL METHODS from the CAL CONTROL menu.
5. From the CAL METHODS menu, select the type of calibration desired: O2 and
COe Calibration.
6. In the first Calibration screen, a Loop should be removed from automatic control
warning appears. Remove the Hazardous Area OCX 8800 from any automatic control
loops to avoid a potentially dangerous operating condition and press OK.
7. The main Calibration screen should look like the following. Press OK to continue.
• OCX: TAG NAME
• STEP: Idle
• TIME REMAIN: 0s
• O2: 0.4 %, 85.95mV
• COe: 0.20 ppm
• OK/NEXT to Select
• ABORT/CANCEL to Exit
8. From the SELECT ACTION screen, select START CAL/STEP CAL to continue calibration,
select ABORT CAL to abort calibration or EXIT CAL to exit calibration method. Select
one from the list and press ENTER.
• OCX: TAG NAME
• SELECT ACTION
– 1. START CAL/STEP CAL
– 2. ABORT CAL
– 3. EXIT CAL
9. When the Calibration Status is at the AppO2Low step, switch on O
2
Low Gas. Verify the
O
2
concentration measured matches the O2 LOW GAS parameter in Setup CAL. Press
OK when ready.
To Next Page
Loading...
Need help?
General
