GASSONIC OBSERVER-i
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6.8.
Event Logging (30H – 5FH)
The Gassonic Observer-i logs Alarm, Fault, Calibration, and Maintenance events. Each event group
will store a total of 10 events in a first-in-first-out manner. An identifying number and time stamp is also
stored for each event.
6.8.1. Faults
Whenever the fault word changes the time will be recorded (See Primary fault)
The time of the fault will be saved
When the fault is removed, it is not saved and the counter is not incremented
A fault event is logged for every 30 seconds recorded
6.8.2. Alarm
The time the gas level reaches the Alarm level is recorded. Each time this happens a counter
is incremented. The end of the event is when the sound level goes 5% below the alarm level.
6.8.3. Calibration
Microphone Calibration
When a calibration is finished a counter is incremented for each calibration attempt. The
identifying number stored depends on the ending condition.
Condition
Identifying number
Calibrate OK
4
Calibrate Adjust
5
Calibrate Error
6
Table 25: Calibration Counter
6.8.4. Maintenance
There are a total of 10 maintenance events stored. The number stored with the time stamp will
indicate the source of the maintenance event.
Piezo
When a Piezo calibration (seven up: seven times on the UP) is saved a maintenance event will
occur. The value stored will be 4. A factory piezo calibration will have the number 9.
Alarm Test
When an alarm test is initiated, a maintenance event will occur. The event code will be 6.
Running Time in Seconds Hi Word (0x30)
This sets/reads hi word of device running time in seconds. This value must be read/written
prior to running time low byte (register 0x00B2).
Running Time in Seconds Lo Word (0x31)
This sets/reads hi word of device running time in seconds. This value must be read/written
after running time hi byte (register 0x00B1).
Содержание Observer-i
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