Specification - Transmitter - ABB WaterMaster Manual

WaterMaster
Electromagnetic flowmeter
8 Specification – Transmitter
Functional Specification
Power supply
Mains
Low voltage
DC
Supply voltage fluctuations within the specified range have no effect on accuracy
Digital Outputs (3 off)
Rating 30 V @ 220 mA, open collector, galvanically isolated
Maximum output frequency 5250 Hz
1 off dedicated to Alarm/ Logic, programmable function
2 off configurable to either Pulse / Frequency or Alarm / Logic function
Current output – HART FEX100 Variant
4 to 20 mA or 4 to 12/20 mA, galvanically isolated
Maximum loop resistance 750 
HART protocol Version 5.7 (HART registered)
Signal levels compliant with NAMUR NE 43 (3.8 to 20.5 mA)
Low alarm 3.6 mA, High alarm, 21.8 mA
Additional accuracy
±0.1 % of reading
Temperature coefficient
RS485 Communications – PROFIBUS FEX100-DP Variant
Registered name FEX100-DP
RS485 (9.6 kbps to 1.5 Mbps), galvanically isolated
DPV0, DPV1
PA Profile 3.01
Standard idents: 9700, 9740, 9741
FEX100-DP specific ident: 3431
3 Concurrent MS2 master connections
RS485 Communications – MODBUS FEX100-MB variant
MODBUS RTU protocol
RS485 (9.6kbps to 115.2kbps), galvanically isolated
Electrical connections
1
20 mm glands, / in NPT, 20 mm armored glands
2
Temperature limitations
Ambient temperature
Temperature coefficient
Environmental protection
Humidity: 0 to 100 %
Rating: IP67 (NEMA 4X) to 1 m (3.3 ft) depth
Tamper-Proof Security
Write access prevented by internal switch combined with
external security seals for MID applications
Languages
English, French, German, Italian, Spanish, Polish
42
85 to 265 V AC @ <7 VA
24 V AC +10 %/–30 % @ <7 VA
24 V ±30 % @ <0.4 A
typically <±20 ppm/°C
–20 to 60 °C (–4 to 140 °F)
Typically <±10 ppm/°C @ Vel 0.5 mls
8 Specification – Transmitter
IM/WM–EN Rev. M