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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
…15 Specification
Outputs
• Pulse/Alarm
• RS485 Modbus
• Sensus protocol
Pulse outputs (option)
• Output 1: forward pulses
• Output 2: reverse pulses
• +35 V @ 20 mA solid state, unipolar
• Isolated with one common, shared with alarm output
Max ±50 V to earth
• 50 Hz max., programable pulse width, default 2 ms *
* Increasing pulse width beyond 2 ms at frequencies greater than 10 Hz
reduces battery life
Modbus interface (option)
• Modbus RTU over 2-wire EIA-485
• Supported baud rates: 9600 and 19200
• Max. devices on bus segment: 32
• Max. response time, 1 registered read: 60 ms
• Max. response time, 1 registered write: 600 ms
Alarm outputs (option)
• Indicates any problem with measurement, power supply
or flowrate alarm
• Bi-directional, solid state
• +35 V @ 50 mA
• Isolated with one common, shared with pulse outputs
Automatic meter reading (AMR)
3-wire Sensus compatible
Logger
Logger function
Flow and pressure
Forward, reverse,
and net flow totals
No. of records
45871
3120
Logging interval *
15 seconds
30 seconds
1 minute
5 minutes
15 minutes
(selectable)
24 hours (fixed)
Logger capacity
31 days @ 1 minute
477 days @ 15 minutes
8 years
* Based on a default 15 second measurement rate when operating on
battery or renewable power
Retrieval of logger data file via smartphone/tablet –
see
.
Logger data file format
• .csv for easy import into databases/spreadsheets
• Time-stamped records with flow, pressure and totalizers
in user-configured units of measurement
Response time (programmable)
>0.1 second (mains-powered)
15 seconds (battery-p external renewable energy)
Environmental and operating conditions
Ingress rating
IP68 (NEMA 6P), <2m (6 ft.)
Submerged
9 months accrued time
Humidity
0 to 100 %
Temperature ranges
Storage: –20 to 60 °C (–4 to 140 °F)
Ambient: –25 to 60 °C (–13 to 140 °F)
Environmental classification
O, M1 and E2
Transmitter vibration
IEC 60068-2-6 (2007)
Vibration level 2g
Options
Compatible sensor styles
Reduced
Octagonal
Full
Probe
bore
bore
bore
DN40 to
DN40 to
DN250 to
300 to
600
200
2400
1000 mm
External pressure transducer (option)
10, 20 and 40 bar absolute
Backward compatibility (option)
• Full compatibility with legacy AquaMaster remote
sensors. Plugs directly into AquaMaster 4 with no
specific configuration required.
MID/Tamper detection (option)
• Switch selectable inside the tamper-evident,
seal-protected enclosure
• Prevents changes to meter configuration that affect the
meter/output accuracy
