AquaMaster 3
Electromagnetic flowmeter
5 Specification
User Guide OI/FET2XX–EN Rev. E
43
Specification – transmitter
Mounting
Directly on sensor
or
Remote up to 200 m (650 ft.)
Housing
IP68 (NEMA 6P), <2 m (6 ft.)
Stainless steel housing in a Thermoplastic outer cover
with window, encapsulated with polyurethane-based
resin
Electrical connections
IP68 plug and socket, mains cable
Sensor cable
ABB cable supplied as standard
SWA cable available (via adaptor box) on application
Mains supply (option)
85 to 265 V AC @ <3 VA
Connection cable: approx. 3 m (10 ft.)
Mains power failure backup time: approx. 5 days
Renewable power (option)
Solar or wind
Input voltage: 6 to 22 V DC @ <5 W
Note
. Renewable energy generators do not operate
at maximum capacity, for example, low wind speed,
coating of the solar panel, short daylight periods. As
a consequence some installations will require
generators with a capacity greater than the specified
5 W minimum.
Max. current: 200 mA
Backup power time up to 3 weeks (dependent on
operating conditions)
External battery pack
IP68 (NEMA 6P)
Manganese alkaline battery life:
0 to 45 °C (32 to 113 °F) typically 5 years
Battery life is shorter with GSM, depending on how
frequently it is used and for what period. For example,
used once per day for SMS automated reporting of
data logged at 15 minute intervals, the life of a battery
pack would be typically reduced by 20 %
Backup power time
Approximately 1 minute
Pulse and alarm outputs
Three bidirectional solid state switches with common
isolation
±35 V DC 50 mA
Output 1 forward only or forward plus reverse pulses
Output 2 reverse pulses or direction indicator
Output 3 Alarm indicates any problem with
measurement or with power
Pulse output 50 Hz maximum, 50 % nominal duty cycle
Communications options
Serial data communications
Local Port RS232
Note
. on battery and renewable energy versions
frequent use of the RS232 port considerably reduces
battery / standby life.
RS485 MODBUS
MODBUS RTU slave
Baud rates: 1200, 2400, 4800, 9600 or 19200
RS485: 2-wire + ground signalling
Low power shut-off mode after 10 s of inactivity
Encoder interface
(non-logging versions only)
Function
Remote reading of totalizer and serial no.
Connections
2-wire for inductive pads
(max. cable length 80 m [260 ft])
3-wire for AMR
Compatible readers
Severn Trent Services Smart reader
ABB or Elster SR100 and SR50
Logicon Versaprobe
Itron ERT
Compatible inductive pads
Starpad
ABB