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.
