OZONE ANALYZER BMT 965 Manual, Rev. 01/2024
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27
If this item is set to Enabled, the BMT 965 emits an acoustic signal during Low- or
High-Alarms and during error conditions. This beeper may be stopped using the
BACK button, if the front panel displays concentrations.
Reset Parameters
This will set all Parameters described above back to factory settings. When pressing
ENTER, the instrument displays
Are you sure?
If ENTER is pressed again, parameters are set as described in the following table:
Ozone Unit g/Nm
3
Pressure Unit bar
High Alarm Limit 80 % of Range
High Alarm enabled No
High Alarm latched No
Low Alarm Limit 40 % of Range
Low alarm enabled No
Low Alarm latched No
Date Format dd.mm.yy
RS-232 user output Timed
RS-2323 user output interval 1 s
User Baud Rate 9600 Baud
Alarm Beep On
Alarm Relays closing Yes
Purge Time 10 s
8 The Serial Interface
The BMT 965 can be equipped with a bidirectional serial interface as an option. In principle there
are two different operating modes: User-Mode and Link-Mode.
In User-Mode all relevant measurement data and status information are sent out in one single line.
As inputs only polling of this single line and zeroing are available.
In the more complex Link-Mode it is possible to view and change many parameters interactively.
Data transmission on the serial interface are always ended with a Carriage Return (CR, dec. 13).
User-Mode
If Timed/Polled is set to Timed, there is an output every Time Interval seconds (s. configuration
of the RS-232 on page 25). In case Polled is set, the BMT 965 expects the input of a question mark
('?', without CR), to which it responds with a block of data. User mode data output always follows
the format in the following example:
26.03.18,12:16:28,154.3 g/Nm3,1.008 bar,00.0,0000
Data are separated by commas. Contents of a data block:
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