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Instruction Manual
IM-106-880C, OI
September 2009
Hazardous Area OCX 8800
9-12
Remove Sample Block Heater Rods
1. Disconnect sample block heater rod wires from terminal block. Refer to
Figure 9-8.
2. Loosen screws (11, Figure 9-7) and rotate heater clamps (12) to release
heater rods (13). One heater clamp secures each heater rod.
3. Slide sample block heater rods (13) out of housing (8).
NOTE
For easier access, you may remove two screws from base of terminal block
mounting (13) and move terminal block assembly out of the way.
Figure 9-8. O
2
Cell,
Thermocouple, and
Heater Connections
+ +
+
+
O2
Thermocouple Wires
ORG
RED
T/C O2
T/C CO
T/C SB
EXC
CJC
O CellWires
2
O HeaterWires
2
Return Wire
O Cell and Heater Strut
Assembly
2
CO REF
CO ACT
Sensor HousingTerminals
+
-
HTR 02
HTR SB
2
GRN
2
1
+
-
+
-
+
-
+
-
+
-
+
YEL
-
+
+
37390069
HTR 02
2
1
Sample Block
Heater Rods
Thermal
Switch
HTR CO
1
EXC
-
Sample
Block
Thermo-
couple