- 1 - 3rd edition No. SS2-MGN200-0200 MagneW3000 PLUS Smart Electromagnetic Flowmeter Open channel Flowmeter Detector Model NNK150/951 Detector OVERVIEW The MagneW3000 PLUS Electromagnetic Flowmeter is submersible type of flowmeter mainly used for flow rate measurement in open or closed channels. This flowmeter is simple in operating principle and easy to install but provides high measuring accuracy. These features are unattainable with other traditional electromagnetic flowmeters. The following out-standing features of the MagneW3000 Flowmeter come from the square-wave excitation system. FEATURES . The detector can also be easily installed on any gate of an existing water channel. The channel may be an open or close type with rectangular or circular cross section. . The construction is simple, having no moving parts. The flowmeters have sturdy resistance against staining, clogging or corroding if a fluid contains suspensions or adherents. . The flow signal is linear, having a high measuring accuracy from 100% down to zero flow rate. Stable measurement can be done even when the channel is affected by the tide. . A wide measuring range of 0 - 0.3 to 0 - 10 m/sec. can be covered. Still larger flows can be measured at the same water head by installing dummy detectors in parallel with the detector which are of the same physical dimensions. . If the weir cannot be installed on the downstream of the detector, the weir with an elbow flange is conveniently used. . The elbow flange is covered with a cover (optional), realizing expand- ability from a small to large flow rate measurement. . The detector body is made of plastics, resulting in light and corrosion resistant structure. . Installation is simple, greatly reducing the cost and time for the engineering work. The detector and the converter can be connected with one 4-core cable for signals and excitation. Figure 1 Application Figure 2 Principle of flow measurement with MagneW3000 Flowmeter Note) Double flow measurement is available by installing a detector with one dummy of the same size as the detector Q=q Q=2q Q=3q q q q Dummy Detector Large flow rate measurement in conjunction with dummies. Weir h V Q = A v = K A 2gh A: Detector diameter V: Average flow velocity K: Physical constant g : Gravitational acceleration h : Head 4 8 Specifications are subject to change without notice. “This product is designed for general industrial use.”