OZONE ANALYZER BMT 964 Manual, Rev. 04/2021
17
g/Nm
3
% wt/wt
ppm
v
Range-ID
50.00
3.500
25000
5
100.0
7.000
50000
6
150.0
11.00
75000
7
200.0
14.00
100000
8
300.0
20.00
150000
9
400.0
26.00
200000
10
0.750
0.0600
375.0
11
15.00
1.100
7500
12
500.0
31.00
250000
13
600.0
37.00
300000
14
0.500
0.0400
250.0
15
Please bear in mind, that there is a non-linear relationship between g/Nm
3
and
ppm
v
on one side and %wt/wt on the other side. Also, the full range concentra-
tions are not exactly the same upon switching, as the range limits are rounded val-
ues.
Accordingly, the analog outputs may change, when the ozone concentration unit
is changed.
Furthermore, the thresholds of High & Low Alarm are recalculated automatically.
For a complete list of available ranges, please refer to the order sheet.
Pressure
The unit of absolute pressure shown on the display can be changed from bar to
psi, Torr or MPa. Here are some examples for recalculation of pressure range
when changing the unit:
bar
psi
Torr
MPa
1.15
16.68
863
0.115
1.5
21,76
1125
0.150
2.0
29.02
1500
0.200
2.5
36.27
1875
0.250
3.0
43.52
2250
0.300
3.5
50.78
2625
0.350
4.0
58.03
3000
0.400
For a complete list of available ranges, please refer to the order sheet.
Alarms
High-Alarm
This alarm occurs if
Enable/Disable
is activated and the limit stored under
Threshold
is exceeded. In case
Relays Open/Close
is set to Relays Closing, the
High-Alarm-Relay closes (default), otherwise it opens. At the same time a High-
