Display Function; Display Annunciators; Table 1-2 Typical G4 Ex Display Options - ABB XSeries G4 6200 User Manual

Flow computer
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Choosing a log period of less than 60 minutes will result in additional records
being logged. As a result, this requires more storage space to hold a full day's
data. The log period must never be less than the volume calculation period.
1.1.4.2
Volume calculation period entries are made every second, by default. The user
may change this period up to 60 minutes. API 21.1 strongly suggests a volume
calculation period (QCP) of once per second.
The volume calculation period should never be greater than the log period and
should be evenly divisible into the log period.
Volume calculations are completed, following the top of the current period (i.e., top
of the hour, top of the minute, each second).

Display function

During operation, the front panel LCD continuously scrolls through the operating
parameters. Table 1–2 shows the typical displayed parameters; however, many
parameters with a register address can be displayed. The duration that the
parameter is displayed can vary from 1 to 255 seconds (default is five seconds); a
setting of zero seconds will set any item to Off. See the Program Display section
and the PCCU32 Help Files for additional information.
Display
DATE/TIME
YEST DP LOW
YEST DP HIGH
FLOW RATE
TOTAL ACCUM VOL
DIFF PRESS
PRESSURE
FLOW TEMP
YEST VOL
PERIOD VOL
BATTERY VOLTAGE
M_FLOWRATE
STATION ID
ORIFICE DIAMETER

1.1.6 Display annunciators

Since a primary function of the G4 EX is to provide complete volume and
operational records, it is important to indicate unusual or alarm conditions as they
occur. This is supported on the LCD in the Annunciator display area shown in
Figure 1–2.
2104349 rev. AD
Volume calculation period entries
Table 1–2 Typical G4 EX display options
MM/DD/YY
HH:MM:SS
NN PERCENT
NN PERCENT
NNNNNN.N SCF/HR
NNNNNN.NN MCF
NNN.N IN. H2O
NNN.N PSIA
NN.N DEG. F
NNNN.N MCF
NNNN.N SCF
NN.N VOLTS
NNNNNN.N SCF/HR
N.NNNN INCHES
Description
Current date and time, 24 hour clock
Yesterday's % time below DP Low Set Point
Yesterday's % time below DP High Set Point
Current flow rate, programmable SCF, MCF or MMCF
Total accumulated volume, programmable SCF, MCF
or MMCF
Differential pressure, inches H2O
Static pressure absolute, PSIA
Flowing temperature, °F
Yesterday's volume, programmable SCF, MCF or
MMCF
Last volume calculation period volume
Battery voltage as supplied by external unit
Minute average flow rate
ID of unit
Size of orifice plate
Page 1–5

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