SensyMaster FMT230, FMT250
THERMAL MASS FLOWMETER | OI/FMT230/250-EN REV. C
63
Table 8: Units for the standard volume totalizer
Selection Code
Description
m
3
4
Cubic
meters
ft
3
7
Cubic
feet
l 13
Liters
xx 254
User-definable
unit
Table 9: Pressure units
Selection Code
Description
Pa 1
Pascals
kPa 4
Kilopascals
Bar 8
Bar
mBar 9
Millibar
inH
2
O@4C
51
Inches water column at 4 °C
mmH
2
O@4C 54
mm water column at 4 °C
atm
64
Atmospheric gauge pressure
psi
65
Pounds per square inch
kp/cm
2
69
Kilogram-force
per
cm
2
Available gas types
For certain parameters it is possible to choose among the
following gas types.
Note
The ‘Code’ column indicates the value to which the
corresponding parameter must be set, e.g. using the
communications interface.
Table: Gas types for the ApplicationSelector
Name / Formula
Code
HEX
DEZ
No selection
—
0
0
Air
1
1
Acetylene C
2
H
2
1E
30
Acetone C
3
H
6
O 24
36
Ammonia NH
3
27
39
Argon Ar
2A
42
Biogas Type 1
—
30
48
1.2 Butadiene
C
4
H
6
3C
60
1.3 Butadiene
C
4
H
6
3F
63
1 Butene
C
4
H
8
42
66
Butane C
4
H
10
45
69
Carbon dioxide
CO
2
48
72
Carbon monoxide
CO
4B
75
Table: Gas types for the ApplicationSelector
Name / Formula
Code
HEX
DEZ
Diketene C
4
H
4
O
2
66
102
Ethane C
2
H
6
6C
108
Ethanol C
2
H
5
OH 6F
111
Ethylene C
2
H
4
72
114
Formaldehyde CH
2
O 75
117
Helium He
78
120
Hexane C
6
H
14
7B
123
Hydrogen H
2
84
132
Hydrogen sulfide
H
2
S 87
135
Methane CH
4
90
144
Methanol CH
3
OH 93
147
MethylEthylKetone
96 150
Natural gas Type 1
—
99
153
Neon Ne
AF
175
Nitrogen monoxide
NO
B2
178
Nitrogen N
2
B5
181
Oxygen O
2
BB
187
Ozone O
3
BE
190
Pentane C
5
H
12
C1
193
Propadiene C
3
H
4
CA
202
Propane C
3
H
8
CD
205
Propene/Propylene C
3
H
6
D0
208
Water vapor
H
2
O E8
232
Note
In the case of hydrogen and helium gas types as pure gas or as a
component of a gas mixture with a concentration of over 10 %,
an optional process gas calibration should always be additionally
ordered.
That way, additional measuring errors due to the special
characteristics of gases are avoided.
