D in table 8-1, Oxymitter 4000, Instruction manual – Emerson Process Management OXYMITTER 4000 IM-106-340 User Manual
Page 98
Oxymitter 4000
8-6
Instruction Manual
IM-106-340, Rev. 4.0
May 2006
Table 8-1. Diagnostic/Unit
Alarm Fault Definitions -
Membrane Keypad Only
*Critical alarm conditions will render the O
2
measurement as unusable, and any of these events will cause the 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
(Self-Clearing = NO) will require a reset. Perform the Reset Procedure in Section 3: Configuration of Oxymitter 4000 with Membrane
Keypad to continue operation.
**The CALIBRATION RECOMMENDED alarm flashes the Calibration Recommended LED on the operator's keypad.
Table 8-2. Diagnostic/Unit
Alarm Fault Definitions - LOI
LED
Flashes
Status
4-20 mA Line
Fault
Recoverable
HEATER T/C
1
2
3
4
Open
Shorted
Reversed
A/D Comm Error
3.5 mA (factory default)*
3.5 mA (factory default)*
3.5 mA (factory default)*
3.5 mA (factory default)*
1
2
3
4
No
No
No
No
HEATER
1
2
3
4
5
Open
High High Temp
High Case Temp
Low Temp
High Temp
3.5 mA (factory default)*
3.5 mA (factory default)*
3.5 mA (factory default)*
3.5 mA (factory default)*
3.5 mA (factory default)*
5
6
7
8
9
No
No
Yes
Yes
Yes
O
2
CELL
1
3
4
High mV
Bad
EEprom Corrupt
3.5 mA (factory default)*
Track O
2
3.5 mA (factory default)*
10
11
12
Yes
Yes
No
CALIBRATION
1
2
3
**
Invalid Slope
Invalid Constant
Last Calibration Failed
Calibration Recommended
Track O
2
Track O
2
Track O
2
Track O
2
13
14
15
Yes
Yes
Yes
Yes
Message
Status
Fault Number
Self Clearing
O2 T/C OPEN
Heater T/C Open
1
No
O2 T/C SHORTED
Heater T/CShorted
2
No
O2 T/C REVERSED
Heater T/C Polarity Reversed
3
No
ADC ERROR
A/D Comm Error
4
No
O2 HEATER OPEN
O2 Heater Open
5
No
VERY HI O2 TEMP
Very High Process Temperature
6
No
BOARD TEMP HI
Electronics Overheated
7
Yes
O2 TEMP LOW
Low Process Temperature
8
Yes
O2 TEMP HI
High Process Temperature
9
Yes
O2 CELL OPEN
O2 Cell Open
10
Yes
O2 CELL BAD
O2 Cell Failed
11, 13, 14
Yes
EEPROM CORRUPT
EEprom Failed
12
No
CALIB FAILED
Last Calibration Failed
15
Yes
LINE FREQ ERROR
Incorrect Input Line Frequency Detected on Power Up
No