Azbil MagneW Plus+, NNK140/941, NNK150/951 User Manual
CM2-MGN200-2001
MagneW PLUS+
Electromagnetic Flowmeter
Open Channel Flowmeter Detector
User’s Manual
Model: NNK140/941,NNK150/951
NOTICE
© 2008-2019 Azbil Corporation All Rights Reserved.
While the information in this manual is presented in good faith and
believed to be accurate, Azbil Corporation disclaims any implied warranty of merchantability or tness for a particular purpose and makes
no express warranties except as may be stated in its written agreement
with and for its customer.
In no event shall Azbil Corporation be liable to anyone for any indirect,
special or consequential damages. is information and specications
in this document are subject to change without notice.
Table of Contents
1 :Introduction ................................................................................................... 1
2 :External view ................................................................................................ 3
3 :Outline and standard specications ............................................................. 5
3-1 :Standard specications ................................................................... 5
3-2 :External dimensions ........................................................................ 6
3-3 :How to use model with an Elbow Flange ........................................ 14
3-4 :How to use the Dummy detector ..................................................... 15
4 :Installation .................................................................................................... 17
4-1 :Considerations on installation ......................................................... 17
4-2 :Transportation of owmeter to the installation site .......................... 18
4-3 :Example of installation work ........................................................... 19
4-4 :Examples of installation .................................................................. 20
5 :Wiring ........................................................................................................... 22
5-1 :Considerations on wiring ................................................................. 22
5-2 :Wiring .............................................................................................. 22
6 :Inspection ..................................................................................................... 24
6-1 :Flowmeter in general ...................................................................... 24
6-2 :Detector .......................................................................................... 24
Appendix .......................................................................................................... Appendix 1
Water level calculation (Bell mouth type) ............................................... Appendix 1
Water level calculation (Elbow ange type) ........................................... Appendix 3
Average ow velocity of detector (m/s) .................................................. Appendix 4
List of Figure
Figure 1 Open channel type Electromagnetic owmeter detector ............................................................... 2
Figure 2 State during ow rate measurement .................................................................................................. 2
Figure 3 Dimensional drawings of Bell mouth type detector ........................................................................ 6
Figure 4 Dimensional drawings of a detector with Elbow ange ................................................................. 8
Figure 5 Dimensional drawings of a Dummy ................................................................................................. 10
Figure 6 Drawing of a Dummy with Elbow ange ......................................................................................... 11
Figure 7 Detector with Elbow ange ................................................................................................................ 12
Figure 8 Dummy with Elbow ange ................................................................................................................. 12
Figure 9 Measuring a large ow rate using dummy detectors ...................................................................... 13
Figure 10 Examples of setting Dummy detector ............................................................................................... 13
Figure 11 Grounding terminal ............................................................................................................................. 14
Figure 12 Connection of converter and detector .............................................................................................. 20
Figure 13 Wiring to connection box ................................................................................................................... 20
Figure 14 Water level adjustment........................................................................................................................ 21
Figure A-1 Detector size selection graph .............................................................................................................. Appendix-2
List of Table
Table 1: Tightening torque of detector ............................................................................................................ 14
1 : Introduction
This manual describes how to install and operate the MagneWTM3000 FLEX/
PLUS NNK open channel electromagnetic owmeter detector. If you are using a
MagneW
operation manual of the converter.
Before installing a detector, make sure that its size is adequate by referring to the
“Diameter Selection Graph” in the appendix of this manual.
TM
3000 FLEX/PLUS NNK in combination with a converter, refer to the
MagneW PLUS+ Electromagnetic Flowmeter Open channel Flowmeter Detector 1
Azbil Corporation
2 MagneW PLUS+ Electromagnetic Flowmeter Open channel Flowmeter Detector
Azbil Corporation
2 : External view
Figure 1 Open channel type Electromagnetic owmeter detector
Figure 2 State during ow rate measurement
MagneW PLUS+ Electromagnetic Flowmeter Open channel Flowmeter Detector 3
Azbil Corporation
4 MagneW PLUS+ Electromagnetic Flowmeter Open channel Flowmeter Detector
Azbil Corporation
3 : Outline and standard specications
This open channel type electromagnetic owmeter is used for measuring ow rates
in open channels or closed conduits such as drainage canals. It is used for a large
variety of ow rate measurements, such as drainage under total pollutant load
regulations, water and sewer service, and irrigation water. (This owmeter is ocially
listed in the “General Specications of Electric Work” of the Japan Sewage Works
Agency.)
3-1 : Standard specications
Overall specications
Flow velocity range: 0 - 0.3 to 0 - 10 m/s. (Continuously adjustable)
Accuracy (Combined with the MGG10/14C):
When detector is used
without dummy or dummies
When detector is used with
dummy or dummies
~Note
*Recommended condition of use
Without dummy: Straight channel section on the upstream side of
With dummy: Straight channel section on the upstream side of
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 uid: SUS304)
Within the recommended
condition *
+/- 1.0% F.S. +/- 2.0% F.S.
+/- 2.0% F.S. +/- 4.0% F.S.
detector is 3 times or more the nominal owmeter
diameter.
detector is twice or more the water channel width.
Outside of the
recommended condition
(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 uid: 5mS/cm
Ambient temperature: 0 to 40° C
MagneW PLUS+ Electromagnetic Flowmeter Open channel Flowmeter Detector 5
Azbil Corporation
W
Signal/Excitation cable
Signal/Excitation cable
Mass: 50 mm (detector;10 kg. dummy; 1.4 kg)
400 mm (detector;130 kg, dummy; 33.4 kg)
100 mm (detector;23 kg. dummy; 3.4 kg)
600 mm (detector;220 kg, dummy; 59.4 kg)
200 mm (detector;45 kg. dummy; 10.4 kg)
3-2 : External dimensions
Bell mouth type detector
Hole Dia. of Gate
eir/Gate
bolt
Flow direction
hole
Weir/Gate
Flow direction
Installation interval
or more
Size 50mm
bolt
Hole Dia. of Gate
hole
Installation interval
or more
Size 100mm
6 MagneW PLUS+ Electromagnetic Flowmeter Open channel Flowmeter Detector
Loading...