IB-106-340
5-11
DIAGNOSTIC
ALARMS
TEST
POINTS
HEATER T/C
HEATER
O2 CELL
CALIBRATION
CALIBRATION RECOMMENDED
O2 CELL mV +
O2 CELL mv -
HEATER T/C +
HEATER T/C -
INC
INC
DEC
DEC
HIGH
GAS
LOW
GAS
CAL
TEST GAS +
PROCESS -
% O2
SW2
TP1
J1
TP2
TP3
RED
YEL
GRN
ORG
TP4
TP5
TP6
ON
22220041
Figure 5-9. Fault 9, High Cell mV
i.
Fault 9, High Cell mV. The O2 CELL flashes
once, pauses for three seconds, and repeats
(Figure 5-9).
1. Using a multimeter, measure across TP1+ to
TP2-.
2. If you measure 1.2 VDC, the cell wires,
either orange or green, have become de-
tached from the input.
3. One possible cause is connector J1. The
orange or green wire has come loose from
the crimped connection.
4. The platinum pad could also be at fault. The
pad could have broken free from the back of
the cell.
5. Replace heater strut per paragraph 6-7,
Heater Strut Replacement. If necessary, re-
place the cell flange assembly per paragraph
6-8, Cell Replacement.
Содержание Oxymitter 4000
Страница 19: ...IB 106 340 xv ...