Azbil MagneW Plus+ NNK140/941, User Manual

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Azbil Corporation
MagneW PLUS+ Electromagnetic Flowmeter Open channel Flowmeter Detector
5
3 : Outline and standard specifications
This open channel type electromagnetic flowmeter is used for measuring flow rates
in open channels or closed conduits such as drainage canals. It is used for a large
variety of flow rate measurements, such as drainage under total pollutant load
regulations, water and sewer service, and irrigation water. (This flowmeter is officially
listed in the “General Specifications of Electric Work” of the Japan Sewage Works
Agency.)
3-1 : Standard specifications
Overall specifications
Flow velocity range: 0 - 0.3 to 0 - 10 m/s. (Continuously adjustable)
Accuracy (Combined with the MGG10/14C):
Within the recommended
condition *
Outside of the
recommended condition
When detector is used
without dummy or dummies
+/- 1.0% F.S. +/- 2.0% F.S.
When detector is used with
dummy or dummies
+/- 2.0% F.S. +/- 4.0% F.S.
~Note *Recommended condition of use
Without dummy: Straight channel section on the upstream side of
detector is 3 times or more the nominal flowmeter
diameter.
With dummy: Straight channel section on the upstream side of
detector is twice or more the water channel width.
Power supply: 90 to 250 V AC, 47 to 63 Hz
24V DC ± 10%, 110V DC ± 10%,
Power consumption: Approx. 10W (including detector and converter)
Detector
Material of body: Rigid vinyl chloride (parts in contact with fluid: SUS304)
(Resisting {internal, external} pressure = 0.05MPa)
Materials of electrodes: SUS316L, Titanium
Structure: Open channel type (equivalent to JIS C 0920
Submersible Type) IEC IP68 equivalent
Cables (10m for each cable): One 4 core shielded cable (outer diameter 11.4 mm;
length 10 m) with cable protection vinyl tube (outer
diameter 22 mm; length 10 m)
Electrical conductivity of the measured fluid: 5
m
S/cm
Ambient temperature: 0 to 40° C