Emerson Process Management IM-106-340 Oxygen Equipment User Manual


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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
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