Instruction Manual
IM-106-880, Rev 1.0
January 2007
3-3
OCX 8800

Figure 3-1. OCX 8800 Defaults

INITIAL POWER UP Allow adequate time (approximately 60 minutes) for the heaters to begin

operation and for the OCX 8800 to reach normal operating temperature on

power up. Normal operating temperature for the O2 cell is 736°C. Normal

operating temperature for the combustibles cell is 300°C. The normal sample

line temperature is 170°C. During this time the eductor air solenoid will remain

closed so no sample is pulled through the analyzer. When the OCX reaches

operating temperature the solenoid will energize, eductor air will begin to flow,

and the unit will begin normal operation.

1234
Internal:
O 4-20 mA
is Internally
Powered
2
External:
O 4-20 mA
Requires an External
Power Supply
(Default)
2
O 21.1 mA/3.5 mA:
2O 4-20 mA Signal
Rail Limits:
High - 21.1 mA
Low - 3.5 mA
2
COe 4-20 mA Signal
Rail Limits:
High- 21.1 mA
Low - 3.5 mA
COe 21.1 mA/3.5 mA:
1
1
2
2
3
3
4
4
SW3
3.5 mA
Switch
Default Postions
Shown
COe
SW1
SW2
37390026
O2
21.1 mA
Closed
External:
COe 4-20 mA
Requires an External
Power Supply
(Default)
Internal:
COe 4-20 mA
is Internally
Powered
Open
Closed
Open
Open
Closed
Open
Closed