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9
WATERMASTER
ELECTROMAGNETIC FLOWMETER | DS/ WM-EN REV. Y
Specification – Sensor
Functional specification
Temperature limitations
Ambient temperature
Remote transmitter
–20 to 70 °C (–4 to 158 °F)
Integral transmitter
–20 to 60 °C (–4 to 140 °F)
Process temperature
See table below.
0.1 to 50 °C (32.2 to 122 °F)
OIML R49 T50 Approved
Medium temperature °C (°F)
Code
Lining Flange material
Minimum
Maximum
FEF, FEW3
Hard rubber
Carbon steel
–10 (14)
80 (176)
Stainless steel
–10 (14)
80 (176)
FEW1
PTFE
Carbon steel
–10 (14)
80 (176)
Stainless steel
–25 (–13)
80 (176)
FEW3
PTFE
Carbon steel
–10 (14)
80 (176)
Stainless steel
–10 (14)
80 (176)
FEW3
Elastomer
Carbon steel
–5 (23)
80 (176)
Stainless steel
–5 (23)
80 (176)
FEF, FER
Elastomer
Carbon steel
–6 (21)
70 (158)
FEV
Polypropylene
–6 (21)
70 (158)
Pressure limitations
As flange rating
PN25 Max Process Temp 50 °C (122 °F)
PN40 Max Process Temp 40 °C (104 °F)
OIML / MID Approved Meters 16 bar (232 psi)
UL Fire Service approved meters 285 psi
Pressure equipment directive 97/23/EC
This product is applicable in networks for the supply,
distribution and discharge of water and associated
equipment and is therefore exempt.
IP rating
IP68 (NEMA 6) to 7 m (20 ft.) depth
Note
. Not sizes DN10 to DN32 (3/8 – 11/4 in. NB)
IP67 (NEMA 4X) – DN10 to DN32 (3/8 – 11/4 in. NB)
Buriable (sensor only)
FEV, FEF and FEW – DN450 to 2400 (18 to 96 in. NB)
to 5 m (16 ft.) depth
Conductivity
>20 µS cm–1
Transmitter mounting
Integral (not FEF) or remote
Electrical connections
20 mm glands
1/2 in. NPT
20 mm armored glands
Sensor cable
ABB WaterMaster cable available in two forms –
standard and armored
Maximum length 200 m (660 ft.)
Suspended solids
Suspended solids percentage of process medium should
not exceed 6 % of total volume
Physical specification
Wetted parts
Electrode material
Stainless steel 316 L / 316 Ti
Super-austenitic steel
Hastelloy® C-22 and Hastelloy C4
(other electrode materials available on request)
Potential equalizing rings
Minimum of 1 recommended
Lining material / potable water approvals
Potable Water Approvals
Code
Size Range
Liner
WRAS
WRAS
60°C
ACS DVGW
NSF
AZ/
NZS
4020
FEW1
DN10 to 32
(3/8 to 11/4 in. NB)
PTFE
FEW3
DN10 to 600
(3/8 to 24 in. NB)
PTFE
FEW3
DN40 to 2400
(11/2 to 96 in. NB)
Elastomer
FEW3
DN40 to 2400
(11/2 to 96 in. NB)
Hard
rubber
NSF
approved
material
FEV
DN40 to 200
(11/2 to 8 in. NB)
Poly-
propylene
NSF-61
FEF
DN250 to 600
(10 to 24 in. NB)
Elastomer
NSF-61
FEF
DN250 to 600
(10 to 24 in. NB)
Hard
rubber
NSF
approved
material
FER
DN40 to 600
(11/2 to 24 in. NB)
Elastomer
*Size is dependent on flange specification
Lining protection plates
Not required
Installation conditions (recommended)
Straight pipe requirements
Upstream
Downstream
FEW / FEF
5 x DN
2 x DN
FEV
5x DN
0 x DN
FER
0 x DN
0 x DN
Pressure loss
Negligible at Q3
All full bore meters
<0.25 bar (<3.62 psi) at Q3
FEV (DN40 to 200
[11/2 to 8 in. NB])
<0.63 bar (<9.13 psi) at Q3
FER (DN40 to 600
[11/2 to 24in. NB])