11
WATERMASTER
ELECTROMAGNETIC FLOWMETER | DS/ WM-EN REV. Y
—
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)
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 W
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 (9.6kbps to 1.5Mbps), 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 ³0.5 mls
* When installed, do not leave galvanically isolated circuits
(pulse and current) floating.
Environmental protection
Humidity:
0 to 100 %
Rating:
IP67 (NEMA 4X) to 1m (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
Infrared service port
USB adapter (accessory), USB 1.1. and 2.0 compatible
Driver software for Windows 2000, XP, 7 (32-bit) and Vista
Housing material
Powder-coated aluminium with glass window
Paint specification
Paint coat ³70 µm thick RAL 9002 (light grey)
Transmitter vibration testing
Vibration level: 7 m/s
2
Frequency range: 20 to 150 Hz
No. of sweeps in 3 orthogonal planes: 20
Undetectable shift in transmitter span or zero performance
Hazardous approvals
FM & FMc Class 1 Div 2
(FM listing NI / 1 / 2 / ABCD / T4, S / II, III / 2 / FG /T4,
Ta=60C; Type 4X, IP67 – for transmitter and integral
mounting
Ta=70C, Type 6P, IP68 – for remote sensor type,
IP67 on DN10 to 32 [3/8 to 11/4 in.NB])
(FMc listing NI / 1 / 2 / ABCD / T4, DIP / II, III / 2 / FG /T4,
Ta=60C; Type 4X, IP67 – for transmitter and integral
mounting
Ta=70C, Type 6P, IP68 – for remote sensor type, IP67 on
DN10 to 32 [3/8 to 11/4 in.NB])
FET, FEV, FEW and FEF DN700 to 2200 (27/28* to 84 in. NB)
only
*Size is dependent on flange specification
ATEX* Zone 2, 21 & 22
II 3 G Ex nA IIC T5 Gc
II 2 D Ex tb IIIC T100°C Db
TA = –20°C to +60°C (integral transmitter)
TA = –20°C to +70°C (remote sensor)
IECEx* Zone 2, 21 & 22
Ex tb IIIC T100°C Db
Ex nA IIC T5 Gc
TA = –20°C to +60°C (integral transmitter)
TA = –20°C to +70°C (remote sensor)
*FEW, FEV, FET and FEF ³700 (27/28 in. NB) only
Declaration of Conformance
Copies of CE certification will be available on request.
WaterMaster has OIML R49 Certificate of Conformity to
accuracy class 1 and 2 (FEV DN40 to 200 [11/2 to 8 in.NB]).
Copies of accuracy certification are available on request.
WaterMaster (FEV DN40 to 200 [11/2 to 8 in.NB]) has been
type examined under directive MID 2004/22/EC, Annex MI-
001. Copies of this certificate are available on request.
