Operation 71
6.4.3.3 SReg – Status register (total)
In the status register all messages since the last manual clearing are col-
lected. Here, you can also see what has happened, for example, since the
last station inspection. The messages can be cleared at the device (Serv. -
> Status -> Clr).
Only alarms and warnings ( chapter 8.2) are displayed in status registers.
6.4.3.4 VbMP – Maximum measurement period counter Vb in the cur-
rent month
The maximum time stamp is displayed in the following line after moving the
cursor to the value "VbMP".
The maximum values from the past 15 months can be requested in the
monthly archive 1 (see chapter 6.4.4 "Admin" register (Administrator).
6.4.3.5 VbDy – Maximum measurement period counter Vb at the cur-
rent day
The time stamp for the maximum value is displayed in the following line
when moving the cursor to the value "VbDy".
The maximum values from the past 15 months can be requested in the
monthly archive 1 (see chapter 6.4.4 "Admin" register (Administrator).
6.4.3.6 Qb – Flow at base conditions
Current flow at base conditions (standard flow rate)
Qb = Qm C with Qm = actual flow rate
C = Conversion factor
The maximum inaccuracy of the displayed value roughly corresponds to
the maximum inaccuracy of the Qm.
For the alarm, the Qb is calculated with the replacement values of the dis-
turbed measurements.
6.4.3.7 Qm – Actual flow rate
Current actual flow rate (measurement flow rate)
The measurement inaccuracy of the displayed actual flow rate is depend-
ent on whether a pulse transducer or encoder is connected:
If a pulse transducer is connected:
For a maximum pulse interval of 15 minutes (at least four pulses per hour)
and
cp.I1 1, the measurement inaccuracy of Qm is maximum 1%. For a pulse
interval of more than 15 minutes, Qm = "0" will be displayed. After the gas
flow rate has changed, the precise value can only be displayed if at least
two pulses have been transmitted to the gas meter.
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