Volume Conversion Device EK220
©
Elster GmbH
23
3.1 User-Liste
AD
Designation / value
Unit Access Address DC
Vb
Volume at base conditions (pre-decimal places) m3
C / S 2:300_1 12
VmA
Vm adjustable
m3
S
4:303
12
p
Pressure
bar
-
7:310_1 4
T
Temperature
°C
-
6:310_1 4
Z
Compressibility factor
-
9:310
4
Zb
Compressibility factor at base conditions
C
9:312
8
C
Conversion factor
-
-
5:310
4
K.F
K-value, substitute value
S
8:311
8
VbME Vb month end value
m3
-
7:161
16
Time
Date and time of Vb month end value
-
-
7:165
16
VmME V month end value
m3
-
14:161 16
Time
Date and time of Vm month end value
-
-
14:165 16
Menu Selection display menu
-
S
1:1A1
7
(Legends: see page 22)
With the exception of the first and last value (
Vb
and
Menu
), this list is user-specific, i.e.
the user can himself set which values in this list are displayed. Ex-works, these are the
above-mentioned values some of which are also displayed in another list and described in
the corresponding chapters.
The setting of the values to be displayed occurs by using the parameterisation software
WinPADS.
Vb
Volume at base conditions (pre-decimal places)
The volume at base conditions computed from the measured "actual volume" is
summed here provided no alarm is present.
An alarm is present when any message with the number "1" or "2" is urgent
(
®
3.8).
Vb
=
Vm
ž
C
where
Vm
= Actual volume (
®
3.3)
C = Conversion factor (
®
3.6)
The post-decimal places of
Vb
are displayed in the standard volume list (
®
3.2).
Vm
Actual volume
p
Pressure
T
Temperature
Values which are also displayed in another list and described in the corresponding
chapters.
Z
Compressibility factor
Zb
Compressibility factor at base conditions
The computation of z and zb occurs according to S-Gerg-88, AGA-8 GC methode
1 or 2, AGA-NX19 or AGA-NX19 acc. Herning and Wolowsky, depending on the
setting of
Md.K
. The gas analysis values
Ho.b
,
CO2
,
H2
and
N2
and
Rhob
(
Md.K
= 1) need to be included in the entries for this (
®
3.6).
Summary of Contents for EK220
Page 2: ...Volume Conversion Device EK220 2 Elster GmbH ...
Page 110: ...Volume Conversion Device EK220 110 Elster GmbH A 2 Approval for Ex Zone ...
Page 111: ...Volume Conversion Device EK220 Elster GmbH 111 ...
Page 112: ...Volume Conversion Device EK220 112 Elster GmbH ...
Page 113: ...Volume Conversion Device EK220 Elster GmbH 113 ...
Page 114: ...Volume Conversion Device EK220 114 Elster GmbH ...