Instruction Manual
IM-106-880, Rev 2.1
April 2017
OCX 8800
8-7
COe sensor degraded
COe Slope Error (Slope not between 200
ppm/Ohm to 4,500 ppm/Ohm)
COe Constant Error (Constant not between
-100 Ohms to +100 Ohms)
Replace COe sensor or increase warning level (
SYSTEM
,
CALIB SETUP
,
COe Slope
Warn
via HART.)
Low sample gas flow in sensor housing due to
flow path plugging
Check the following portions of the flow path for plugging:
• blowback filter
• in-situ filter
• eductor outlet path
Calibration Gas concentration incorrect or gas
bottle empty
O
2
TOL Error (not within 10% of configured O2 test gas).
COe TOL Error (not within 30% of configured CO test gas).
Table continued on next page
Figure 8-2. Oxygen and Cell
Output
9
7
5
0.9
0.7
0.5
-20
0
20
40
60
80
100
120
ANALYZER OUTPUT (MILLIVOLT)
Cal Warning (Calibration warning)
Cal Failed (Calibration failed)
Probable Cause
Recommended Corrective Action
O
X
Y
G
E
N
CO
NCEN
T
R
A
T
IO
N
(%)
3
7
3
9
0
0
5
1
20
10
(23)
8
6
4
3
2
1
(73)
0.8
0.6
0.4
0.3
0.2
0.1
Содержание OCX 8800
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