OZONE ANALYZER BMT 965 Manual, Rev. 01/2024
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26
Date
During entry the date will be constantly tested on conformance to the calendar
rules, so it is not possible for example to enter the date 29.02.18. In order to make
this test possible, first the year, then the month and then the day has to be set.
File Operations
Set Log Interval
Set the time interval in seconds, in which data is written to the concentration log
on the internal SD card. Minimum interval is 1 s, and max. interval is 9999 s.
Logging On/Off
Concentration logging can be switched on and off here. An explicit explanation of
storage and file handling follows in the next paragraph.
CSV-Log On/Off
If logging is generally on (see above), logging to an Excel-CSV file can be activated
here.
Delete Conc.-Log
Both concentration logs can be deleted from the SD card.
Other Parameters
Auto Zero Interval
This variable determines, if and in which time interval (hours) the instrument will
perform a (fully) automatic zeroing cycle. If set to zero, there will be no automatic
zeroing.
Note: In case the instrument is configured for automatic zeroing care must be taken
to supply the purge gas (oxygen or filtered air). The instrument may either be
equipped with an external or Internal Purge Unit (solenoid valve and air pump with
particle filter, available as an option), or some other means of switching the purge
gas supply via the PURGE relay contact has to be provided (see also page 15)
The time interval between two automatic zeroing cycles can be set between 1 and
99 hours. If the instrument is set to automatic zeroing one additional zero cycle is
performed 15 min after switching on. A zero triggered manually, via RS-232, USB,
or the binary input will also include automatic purge and will reset the interval timer.
Alarm Beep
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