Elster EK220, Operating Instructions And Installation Information

Page: 48 / 120

Volume Conversion Device EK220
48 © Elster GmbH
Restart Restart of the device Message 1 in StSy
The device was started without usable data. Counter readings and archives are em p-
ty, the clock has not been set.
C-fact. err. Conversion factor cannot be computed Message 1 in St.5
The conversion factor C (
®
3.6) cannot be computed because the temperature
T (
®
3.5) is outside the range or no usable K-value K (
®
3.6) is available (cf. mes-
sage "K-val. error."). Possibly the temperature sensor is not connected correctly or
the substitute value for the K-value K.F (
®
3.6) has the value "0". The conversion
factor is set to "0" and disturbance quantities for Vb a re counted in VbD (
®
3.2).
With the correct device setting, this message does not occur, because, for example,
when an alarm limit, TMin or TMax (
®
3.5), is exceeded, the temperature substitute
value T.F is used.
T Alarm Lim. Alarm limits for temperature violated Message 1 in St.6
The measured gas temperature T.Mes is located outside of the set alarm limits TMin,
TMax (
®
3.5).
While ever this message is present in St.6, the substitute temperature T.F (
®
3.5) is
used for volume correction and disturbance quantities are counted for Vb and Vm
(
®
3.2, 3.3).
The alarm limits can be changed with the calibration lock open. If they are set to the
same value, they are ignored, i.e. they cannot give rise to any alarm messages nor
disturbance quantities.
p Alarm Lim. Alarm limits for pressure violated Message 1 in St.7
The measured gas pressure p.Abs is located outside of the set alarm limits pMin ,
pMax (
®
3.4).
While ever this message is present in St.7, the substitute pressure p .F (
®
3.4) is
used for volume correction and disturbance quantities are counted for Vb and Vm
(
®
3.2, 3.3).
The alarm limits can be changed with the calibration lock open. If they are set to the
same value, they are ignored, i.e. they cannot give rise to any alarm messages nor
disturbance quantities.
K-val. error Inv. compr. ratio factor cannot be computed Message 1 in St.8
The K-value K (
®
3.6) cannot be computed because no valid compressibility factor
could be determined. (cf. message "C-fact. err.")
While ever this problem exists, the substitute value K.F is used for the K-value and
disturbance quantities are counted for Vb and Vm (
®
3.2, 3.3).
Z-fact. err. Compressibility factor cannot be computed Message 1 in St.9
At least one of the gas analysis values Ho.b, CO2, H2, Rhob (
®
3.6) is located out-
side of the permissible range.
While ever this problem exists, the last valid value for each of the affected gas anal y-
sis values is used and disturbance quantities are counted for Vb and Vm (
®
3.2,
3.3). If a valid value has not yet been able to be calculated (because the gas analysis
has not till now been correct), the compressibility factor is set to "0". Consequently
therefore, also no K-value can be computed. (See above: message "K-val. error").