Rosemount OCX 8800, Instruction Manual

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Instruction Manual
IM-106-880, Rev 2.1
April 2017
OCX 8800
9-12
HTR 02
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
O
2
Cell Wires
O
2
Heater Wires
Thermocouple Wires
+
+
+
-
O2
ORG
RED
GRN
YEL
T/C O2
+
+ +
-
T/C CO
+
O
2
Cell and Heater Strut
Assembly
-
T/C SB
+
- EXC
-
CJC
+
Sample
Block
Thermo-
couple
Sample Block
Heater Rods
2
HTR 02
1
-
2
HTR CO
1
CO REF
+
-
2
HTR SB
1
CO ACT
+
+ EXC
S
e
nsor
H
o
us
in
g
T
e
rm
in
a
ls
R
e
tur
n
W
ire
3
7
3
9
0
0
6
8