IB-106-340
5-6
.
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
22220036
Figure 5-4. Fault 4, Open Heater
d.
Fault 4, Open Heater. The HEATER LED
flashes once, pauses for three seconds, and re-
peats (Figure 5-4).
1. Remove power. Remove the electronic
assembly per paragraph 6-5b, Electronic As-
sembly Replacement.
2. Using a multimeter, measure across the
heater connector J8.
3. The measurement should be approximately
72 ohms. If the heater is open, see para-
graph 6-7, Heater Strut Replacement.
Содержание Oxymitter 4000
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