Teledyne 9060Z - Zirconium oxide flue gas oxygen analyzer - Manual (Page 47)

Model 9060Z Manual
47
19. ‘Gas 1 Calibration Error’
20. ‘Gas 2 Calibration Error’
At the end of an automatic gas calibration check cycle the oxygen reading was outside the values set
in the COMMISSIONING menu #26 to 28 (#35 to 37). This alarm will not reset until the next calibration
check cycle. The cycle can be initiated manually or automatically.
21. ‘BBRAM Fail’
All of the setup options are held in the battery backed memory (BBRAM). This is the battery shaped
device at the bottom centre of the 1732‐1 PCB labeled MEM1. This alarm will occur when this device
fails and will need to be replaced.
9.2 SELECTABLE PROCESS ALARMS
The alarm relays 1, 2 and 3 are generally used to transmit a gas related alarm event. Any or all of the
following functions can be selected for each relay.
The trip levels and the delay times are set is in the COMMISSIONING menu.
NOTE: The process alarms will only be activated if they are enabled in the SETUP function 6. See
chapter 6.3.5.
21. ‘Oxygen 1 Very Low’
22. ‘Oxygen 2 Very Low’
The measured oxygen level on the indicated probe has been below the trip level shown in
COMMISSIONING menu function #38 for longer than the delay time shown in function #39.
23. ‘Oxygen 1 Low’
24. ‘Oxygen 2 Low’
The measured oxygen level on the indicated probe has been below the trip level shown in
COMMISSIONING menu function #40 for longer than the delay time shown in function #41.
25. ‘Oxygen 1 High’
26. ‘Oxygen 2 High’
The measured oxygen level on the indicated probe has been above the trip level shown in
COMMISSIONING menu function #42 for longer than the delay time shown in function #43.
27. ‘Oxygen Deviation’
The difference between the oxygen level measured on probe #1 and the oxygen level measured on
probe #2 is greater than the trip level shown in COMMISSIONING menu function #44 for longer than
the delay time shown in function #45.
28. ‘Probe 1 Temperature Low’
29. ‘Probe 2 Temperature Low’
The probe temperature is under 650°C (1200°F). The oxygen reading is therefore invalid. If the probe
heater has been on for more than 20 minutes and the temperature is less than 650°C (1200°F) a
‘Probe # Heater Fail’ alarm will occur.
NOTE: The ‘Probe # Temperature Low’ relay function is used with unheated probes to indicate oxygen
reading is invalid (the probe is below 650°C (1200°F) ), in case the process temperature falls below this