ABB AquaMaster4, Operating Instruction

Page: 41 / 72

AQUA M A STE R4
| EL EC T R O M AG N E T I C FLO W M E T ER T R A N SM I T T ER | O I/FE T4 0 0 - EN R E V. D 41
7 Operation
Start-up
WARNING – BODILY INJURY
• Observe all battery and other warnings in Section 1,
page 5.
• Operation at temperature extremes significantly
shortens the battery capacity and life – see
Specification on page 63.
To start the AquaMaster4 for the first time connect the battery
connector (
D
on page 16)/apply mains or renewable power.
Operating display
The LCD is configurable, but by default it displays the
volumetric flow rate and totalizer in selected units, which are
programmable. For volume totals, the display cycles between
forward, reverse and net totals by default, with the direction
indicated by the
Σ± symbols above the volume total. Volume
accuracy is shown to 0, 1, 2, 3 or 4 significant digits with a box
around the sgnificant digits to indicate them. Further accuracy
is available if the flowmeter is read via the Velox app.
The LCD display shows the configured display values, such as
flow totals, flowrate and alarm icons.
The sensor fault alarm icon has two states:
• When blinking it indicates a failure to meet OIML R49 self
checking Type P (Permanent) self checking. For further
causes see
Diagnostics on page 56.
• When static it indicates a fault with the sensor, its
installation or connection.
Upper display:
forward flow total/reverse flow total/net flow total
Alarm condition
read diagnostics
Empty pipe condition
Mains failure Sensor fault
Lower display:
flowrate/flow velocity/pressure
5 Alarm icons
Battery state
Totaliser forward/
Reverse/Net
Mobile
communication
Figure 65 AquaMaster4 display information
If an alarm, fault or power issue occurs, warning icons are
displayed on the bottom line.
For MID/OIML certified systems, a verification sequence is
cycled every 10 minutes to check software integrity and that all
segments of the LCD display are functioning. The sequence
starts with all segments disabled followed by all segments
enabled as shown in Figure 65. The flow meter firmware version
is then displayed…
…followed by the result of a cyclic redundancy checksum on the
currently running flow meter firmware…
…followed by the lower significant digits of the totalizer value
with increased resolution to aid in-situ meter performance
verification.
The battery state indicator has 3 segments that indicate the
following conditions:
Table 4 Battery icon – status indicators (FEX41X/43X)
Icon state Battery only Mains + backup
and renewable
Both batteries
in good condition
Backup battery
fully charged
Both batteries
in use
Backup battery
2/3 rds full
One battery empty
(red wire connection)
Backup battery
1/3 rd full
Replace both batteries
No power left
no flow measurement
Backup battery
empty*
*Backup energy is recharged over a period of time when mains power is restored.