Emerson OCX 8800, Instruction Manual

Page: 40 / 168

Instruction Manual
IM-106-880, Rev 1.0
January 2007
OCX 8800
3-4
SET TEST GAS VALUES
Use HART/AMS or the optional LOI to set test gas values for calibration.
Refer to Section 4, Using the LOI or Section 5, Using HART Communications
for more information.
Setting Test Gas Values with HART
1. Use the HART communicator or AMS software to access the HART
menu.
2. From the DETAILED SETUP menu, select O2 CALIB PARAMS .
3. From O2 CALIB PARAMS , select O2 High Gas . Enter the percent O
2
used for the high O
2
test gas.
4. From O2 CALIB PARAMS , select Low TG . Enter the percent O
2
used
for the low O
2
test gas.
5. From the DETAILED SETUP menu, select COe CALIB PARAMS .
6. From COe CALIB PARAMS , select COe Test Gas . Enter the CO
concentration (ppm) used for 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.
OCX 8800 RESET
PROCEDURE
Whenever you correct an equipment alarm or fault condition, the OCX 8800
will either revert to normal operation or continue to indicate an alarm status
condition. If the equipment does not revert to normal operation when a fault
condition is cleared, or if instructed to do so in Section 8, Troubleshooting,
use the following procedure to reset the OCX 8800.
OCX Reset with the LOI
1. Use the "Z" pattern to enter the LOI menu tree. (Refer to Section 4,
Using the LOI).
2. Select the SYSTEM submenu.
3. From the SYSTEM submenu, select the Status submenu.
4. From the Status submenu, select Reset Device . The OCX 8800 will
reset and the LOI will revert to the normal operation display.
OCX Reset with HART
Remove the OCX 8800 from the process loop and recycle power.