Figure 8-6. Fault 4, A/D Comm Error - Emerson Rosemount Analytical Oxymitter 4000 Instruction Manual

Instruction Manual
IB-106-340C Rev. 4.1
July 2004
DIAGNOSTIC
ALARMS
CALIBRATION RECOMMENDED
TEST
POINTS
INC INC
HIGH LOW
GAS GAS
DEC DEC
KEYPAD
Alarms
ADC

Figure 8-6. Fault 4, A/D Comm Error

8-8 Troubleshooting
HEATER T/C
HEATER
SW2
O2 CELL
CALIBRATION
J1
O2 CELL mV +
TP1
O2 CELL m - V
TP2
HEATER T/C +
TP3
HEATER T/C -
TP4
CAL
TEST GAS + TP5
PROCESS -
TP6
% O2
Error
LOI
37260022
Hazardous Area Oxymitter 4000
d. Fault 4, A/D Comm Error
Membrane Keypad. When Fault 4 is
detected, the HEATER T/C LED flashes
four times, pauses for three seconds, and
repeats (Figure 8-6).
1. Call the factory for assistance.
LOI. When Fault 4 is detected, the LOI
displays the "ADC Error" message.
1. Call the factory for assistance.
Rosemount Analytical Inc. A Division of Emerson Process Management