Honeywell
The low-pressure measuring range (atmospheric pressure) is 1:20 or
optionally 1:30 (see Table 12). The flow rate limit Q
operating pressure as a result of the increasing operating energy and
therefore the useful measuring range is greater. Q
It must be noted that the measuring ranges are are defined by national
regulations.
TRZ2 measuring ranges
Meter size
Q
max
G65
G100
G160
G250
G400
G650
G1000
Table 11 | Measuring ranges of the TRZ2 depending on the operating pressure
=
,
,
28
[m³/h]
Q
[m³/h]
max,LP
100
5
160
8
250
13
400
20
650
32
1000
50
1600
80
1
∙
�
∙
d
= Density ratio of gas (natural gas d
v
p = Absolute operating pressure [bar]
73018696f
min
is shown in Table 11.
min,HP
Operating pressure (absolute) [bar]
5
10
15
20
Q
min,HP
3
2
2
1
1
3
3
2
7
5
4
4
11
8
6
6
17
12
10
9
27
19
16
13
44
31
25
22
© Elster GmbH | All rights reserved. Subject to modification
is lower at increased
25
30
35
[m³/h]
1
1
1
2
2
2
3
3
3
5
5
4
8
7
7
12
11
10
19
18
16
= 0.65)
v
40
1
2
3
4
6
10
15