System integration
Deltabar PMD78B HART
42
Hauser
Device variable
Device variable code
Loop current
245
Not used
250
The device variables can be queried by a HART
®
master using HART
®
command 9 or
33.
8.2.2
System units
The following table describes the supported pressure measuring units.
Index number
Description
Hart unit code
0
mbar
8
1
bar
7
2
Pa
11
3
kPa
12
4
MPa
237
5
psi
6
6
torr
13
7
atm
14
8
mmH2O
4
9
mmH2O (4°C)
239
10
mH2O
240
11
mH2O (4°C)
240
10
ftH2O
3
11
inH2O
1
12
inH2O (4°C)
238
13
mmHg
5
14
inHg
2
15
gf/cm²
9
16
kgf/cm²
10