Emerson Process Management IB106-340 instruction manual Fault 11, Bad Cell

Instruction Manual

IB-106-340 Rev. 2.4

April, 2001

	HEATER T/C
DIAGNOSTIC	HEATER	SW2
ALARMS	O2 CELL	ON
	CALIBRATION

CALIBRATION RECOMMENDED

Oxymitter 4000

k. Fault 11, Bad Cell

The O2 CELL flashes three times, pauses

for three seconds, and repeats (Figure

7-11).

1. The bad cell alarm activates when the

cell exceeds the maximum resistance

TEST

POINTS

INC INC

HIGH LOW

GAS GAS

DEC DEC

O2 CELL mV +

O2 CELL mv - HEATER T/C + HEATER T/C -

CAL

TEST GAS + PROCESS - % O2

TP1 TP2 TP3 TP4

TP5 TP6

J1 RED YEL GRN ORG

22220042

value.

2. The cell should be replaced. See para-

graph 6-8,Cell Replacement, for cell

replacement instructions.

Figure 7-11. Fault 11, Bad Cell

7-14 Troubleshooting Rosemount Analytical Inc. A Division of Emerson Process Management