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Instruction Manual
IB-106-340C Rev. 4.1
July 2004
Table 8-1. Diagnostic/Unit Alarm Fault Definitions – Membrane Keypad Only
LED
Flashes
HEATER T/C
1
2
3
4
HEATER
1
2
3
4
5
O
CELL
1
2
3
4
CALIBRATION
1
2
3
**
* Critical alarm conditions will render the O
4-20 mA signal to go to a user-selectable limit of 3.5 mA or 21.6 mA (position 3 of SW2). Factory default value
is 3.5 mA. Alarms which are not "self-clearing" will require recycling of power to the electronics.
** The CALIBRATION RECOMMENDED alarm flashes the Calibration Recommended alarm LED on the opera-
tor's keypad.
Message
O2 T/C OPEN
O2 T/C SHORTED
O2 T/C REVERSED
ADC ERROR
O2 HEATER OPEN
VERY HI O2 TEMP
BOARD TEMP HI
O2 TEMP LOW
O2 TEMP HI
O2 CELL OPEN
O2 CELL BAD
EEPROM CORRUPT
CALIB FAILED
LINE FREQ ERROR
8-4
Troubleshooting
Status
OPEN
SHORTED
REVERSED
A/D COMM ERROR
OPEN
HIGH HIGH TEMP
HIGH CASE TEMP
LOW TEMP
HIGH TEMP
HIGH mV
BAD
EEPROM CORRUPT
INVALID SLOPE
INVALID CONSTANT
LAST CALIBRATION
FAILED
CALIBRATION
RECOMMENDED
measurement as unusable, and any of these events will cause the
2
Table 8-2. Diagnostic/Unit Alarm Fault Definitions – LOI
Status
HEATER T/C OPEN
HEATER T/C SHORTED
HEATER T/C POLARITY REVERSED
A/D COMM ERROR
O2 HEATER OPEN
VERY HIGH PROCESS TEMPERATURE
ELECTRONICS OVERHEATED
LOW PROCESS TEMPERATURE
HIGH PROCESS TEMPERATURE
O2 CELL OPEN
O2 CELL FAILED
EEPROM FAILED
LAST CALIBRATION FAILED
INCORRECT INPUT LINE FREQUENCY
DETECTED ON POWER UP
Hazardous Area Oxymitter 4000
4-20 mA Line
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Track O
2
Dependent on position 3 of SW2*
Track O
2
Track O
2
Track O
2
Track O
2
Rosemount Analytical Inc. A Division of Emerson Process Management
Fault
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Fault
Self-
Number
Clearing
1
NO
2
NO
3
NO
4
NO
5
NO
6
NO
7
YES
8
YES
9
YES
10
YES
11, 13, 14
YES
12
NO
15
YES
NO
Self-
Clearing
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
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