WaterMaster
Electromagnetic flowmeter 8 Specification – Transmitter
42 IM/WM–EN Rev. M
8 Specification – Transmitter
Functional Specification
Power supply
Mains 85 to 265 V AC @ <7 VA
Low voltage 24 V AC +10 %/–30 % @ <7 VA
DC 24 V ±30 % @ <0.4 A
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 typically <±20 ppm/°C
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
20 mm glands,
1
/2 in NPT, 20 mm armored glands
Temperature limitations
Ambient temperature –20 to 60 °C (–4 to 140 °F)
Temperature coefficient Typically <±10 ppm/°C @ Vel 0.5 mls
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
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