OZONE MONITOR BMT 932 Manual, Rev. 02/2021
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zeroing can be initiated manually by pressing the SCROLL button. The display
shows e.g.:
Sniffer Channel 1
0.003 ppm
Return to normal operation can be achieved by entering this menu item again.
Alarm Beep
If this item is set to Enabled, the BMT 932 emits an acoustic signal during Low-
or High-Alarms. This beeper may be stopped using the BACK button, if the front
panel menu is on ist basic level.
Reset Parameters
This will set all Parameters described above back to factory settings. When press-
ing ENTER, the instrument displays
Are you sure?
If ENTER is pressed again, parameters are set as described in the following table:
Parameter Setting
Ozone Unit ppm
All High Alarm Limits 30 % of Range
High Alarms enabled Yes
High Alarms latched No
Low Alarm Limits 10 % of Range
Low Alarms enabled Yes
Low Alarms 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
EMOs All enabled
(All relays will open if any
alarm occurs)
14 The Serial Interface
The BMT 932 has a bidirectional serial interface. 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 is possible.
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