OCX 8800
Instruction Manual
9.The Calibration Status should be automatically changed to FlowCOeHi and then ReadCOeHi for a period of time. During this period, if an attempt is made to go the next calibration step by pressing OK and selecting Start/Next Cal Step, you will be prompted with Operator step command is not accepted at this time. The Next Cal Step command is not accepted at this time.
10.When ready, Calibration Status will stop at STOP GAS. Switch off the COe High Gas. Press OK when ready. Select Start/Next Cal Step to start purging gas. The time to purge gas is specified by the Purge Time.
11.When the Purge step is complete, the Calibration Status will be at IDLE if the calibration is successful or CAL RECOMMENDED if the calibration has failed. A Calibration Failed alarm will be set if the calibration has failed.
12.When calibration is complete. Select Exit Cal to exit the calibration method.
Manual O2 and COe Calibration using HART
To perform a manual O2 and COe calibration using the HART communicator or AMS, use the following procedure. If necessary, refer to Section 5, Using HART Communications, 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.From the DIAG/SERVICE menu, select CALIBRATION. From the CALIBRATION menu, select PERFORM CAL.
2.From the PERFORM CAL menu, select CAL METHODS. Select 02 & COe CALIBRATION to start O2 and COe calibration.
3.In the first Calibration screen, a Loop should be removed from automatic control warning appears. Remove the OCX 8800 from any automatic control loops to avoid a potentially dangerous operating condition and press OK.
4.The main Calibration screen should look like the following. Press OK to continue.
OCX: TAG NAME
STATUS: Idle
TIME REMAIN: 0s
O2: 0.4 %, 85.95mV
COe: 0.20 ppm, 0.00 mV OK/NEXT to Select ABORT/CANCEL to Exit
