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５－3．Data logger
Data logger function has following 5 kinds.
（1）Interval trend
The change of measuring gas shall be recorded until the power on into off. Recording time
can 100 times data. When it is over 100 times, the old data shall be deleted and record
the new data by up-dating.
※But when exceed the max recording time within 100 times, the old data shall be deleted.
The max record time for interval time shall be as follows.
Interval time
10 sec
30 sec
1 min
3 min
5 min
10 min
Max record time
10 H
30 H
60 H
180 H
300 H
600 H
※Standard interval time shall be 30 sec.
The interval time can be adjusted by “Data Management Program (Option)”.
（2）Alarm trend
This record the alarm trigger and the change of measuring valve for 30 minutes (Total: 1 hour)
to fro and back of alarm triggering point.
Alarm trend shows the peak valve of 5 sec every 5 sec.
The recording number shall keep the record of data for up-dating 8 pcs data.
When exceed 8 pcs data, the old data is deleted and shall record the latest data.
（3）Alarm event
It is recorded as event that alarm triggers.
Alarm trigger time and measuring gas and kind of alarm (AL1, AL2, OVER) shall be recorded.
The record number will save the max 100 pcs data from the latest event.
When exceed 100 pcs data, the oldest data shall be deleted and the latest data shall be
recorded.
（4）Trouble event
It is recorded as event that trouble triggers. Trouble trigger time, measuring gas,
instrument information and trouble event shall be recorded.
This can record 100 pcs data Max from the past by counting from the latest.
When exceeds 100 pcs data, the oldest data is deleted and updated to the latest data.
（5）Calibration history
When calibrated, this cal data is recorded.
The cal hour, density around cal and calibration error shall be recorded.
Past 20 times data by counting from the latest cal history can be saved.
When exceed 2 times, the latest data shall be recorded by deleting the oldest.
※The recorded data can be read out from option “Data management program”.
＊Note
This data logger function is based on over-light method (By deleting the oldest data,
the latest data shall be recorded.
