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207921
User manual
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MJK 297925, 297259-150-00, 297258-150-00, 297252-150-00, 297261-150-00 User manual

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Page 1
Manual
EN 3.05 Version 2105
MagFlux® Series
ELECTROMAGNETIC FLOWMETER
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MagFlux® Series
EN 3.05 Version 2105
2
Your notes:
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MagFlux® Series
EN 3.05 Version 2105
3
Table of Contents
MJK declaration of conformity.................................................................................................. 8
Introduction.................................................................................................................................9
Introduction - MagFlux® Q ....................................................................................................9
Operating principles ..............................................................................................................9
The MagFlux® Flow Meter.................................................................................................. 10
Safety, repair and product identification...............................................................................11
Safety instructions................................................................................................................ 11
Physical mounting................................................................................................................ 12
Repair .................................................................................................................................... 12
MJK product identification ................................................................................................. 12
Flow sensor................................................................................................................................14
Minimum conductivity......................................................................................................... 14
Liner selection ...................................................................................................................... 14
Liner selection, cont. ........................................................................................................... 14
Electrode selection.............................................................................................................. 14
Mounting location ............................................................................................................... 14
Pressure loss......................................................................................................................... 16
Accuracy ............................................................................................................................... 17
MJK sizing............................................................................................................................. 17
Sizing chart ........................................................................................................................... 20
Pipe system........................................................................................................................... 23
Pipe system - MagFlux Q special conditions................................................................ 27
Cabinet mounted on the flow sensor................................................................................ 28
Potential equalization and grounding .............................................................................. 28
Type 7100/7200/8200 in conductive pipes ................................................................. 28
MagFlux® in conductive pipes, MagFlux® Q ...........................................................29
Type 7100/7200/8200 in non-conductive pipes......................................................... 29
MagFlux® in non-conductive pipes, MagFlux® Q ...................................................29
Cathodic protection ............................................................................................................ 30
Type 7100/7200 in conductive pipes ...........................................................................30
Type 7100/7200 in non-conductive pipes ...................................................................30
Flow converter ..........................................................................................................................31
Electrical mounting.............................................................................................................. 31
Power supply........................................................................................................................ 32
Change power supply voltage 230/115 V AC ................................................................. 33
Analogue output.................................................................................................................. 36
Digital outputs...................................................................................................................... 36
Digital input.......................................................................................................................... 37
Local (compact) flow sensor............................................................................................... 38
Remote flow sensor ............................................................................................................. 38
Converter connection board - local .................................................................................. 40
MJK Connection board - remotely mounted converter ................................................. 41
System configuration examples..............................................................................................42
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EN 3.05 Version 2105
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MJK compact converter and display unit on flow sensor............................................... 42
MJK remote converter with connection box on flow sensor ......................................... 42
Wiring schematic #1............................................................................................................ 43
MJK remote display and multiple converters wiring ...................................................... 44
Wiring schematic #2............................................................................................................ 45
Startup........................................................................................................................................47
MJK initial checks................................................................................................................. 47
Initial flow measurement..................................................................................................... 47
Flow direction check ........................................................................................................... 47
Language selection ............................................................................................................. 47
MJK display read-out, one connected unit ...................................................................... 48
Display read-out, several connected units ....................................................................... 48
MJK display keys.................................................................................................................. 49
Initial setup ........................................................................................................................... 50
MagFlux® menus ......................................................................................................................53
Main menu............................................................................................................................ 53
Specify main screen............................................................................................................. 54
MJK factory settings ............................................................................................................ 55
Data logger........................................................................................................................... 60
Graph display................................................................................................................... 61
Password............................................................................................................................... 62
Set sensor name................................................................................................................... 64
Converter setup ................................................................................................................... 65
Minimum flow................................................................................................................... 67
Averaging .........................................................................................................................69
Units................................................................................................................................... 70
mA output......................................................................................................................... 70
Flow forward.................................................................................................................71
Flow reverse .................................................................................................................72
Forward & rev. (12mA=0) ...........................................................................................73
Forward & rev. (4mA=0) .............................................................................................74
Not in use......................................................................................................................75
MJK totalizers ................................................................................................................... 75
Settings and limits for resettable totalizers ..............................................................76
Resettable totalizers ....................................................................................................79
MJK batch counters 1 & 2............................................................................................... 82
Settings and limits for batch counters.......................................................................87
High flow/low flow........................................................................................................... 90
Flow direction................................................................................................................... 92
Empty pipe .......................................................................................................................94
24h flow............................................................................................................................. 95
Status................................................................................................................................. 95
Service menu.................................................................................................................... 97
Sersor calibration code...............................................................................................97
Converter software ver................................................................................................98
Product info ..................................................................................................................99
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Reset counter time.......................................................................................................99
Internal meas. & cal. ................................................................................................. 100
Minimum velocity...................................................................................................... 100
Calibrate mA ............................................................................................................. 101
Test velocity............................................................................................................... 103
Freeze coil ................................................................................................................. 104
Read eventlog ........................................................................................................... 105
Back on stock ............................................................................................................ 105
Popup on/off ............................................................................................................. 106
Zero point calibration............................................................................................... 106
Verification................................................................................................................. 108
Display setup...................................................................................................................... 108
MJK communication modules documentation..........................................................109
Language........................................................................................................................109
Set clock..........................................................................................................................111
Modbus...........................................................................................................................111
Add Device................................................................................................................ 112
Change Device Address.......................................................................................... 113
Remove Device ......................................................................................................... 114
Change Display ID No.............................................................................................. 115
Set No. of Retries ...................................................................................................... 115
Change Modbus speed ........................................................................................... 116
Factory setting setup.....................................................................................................116
Display SW version ........................................................................................................117
Mechanical dimensions ........................................................................................................ 118
MJK standard flanges - EN-1092-1_2001 - Europe....................................................... 118
MagFlux Q sensor sizes and torque............................................................................120
MJK standard flanges - ANSI B 16.5 - U.S.A................................................................... 121
MJK standard flanges - AS-4087-2004 - Australia......................................................... 125
MJK standard flanges - AS-4087-2004 (continued #1)................................................. 127
MJK standard flanges - AS-4087-2004 (continued #2)................................................. 129
Appendix A. Pop-up and error messages.......................................................................... 132
Appendix B. MJK Field Link™ software.............................................................................. 136
System Requirements MJK Field Link™ .........................................................................136
Download MJK Field Link™ and connect a PC to the MagFlux® flow meter ............ 136
Save log data...................................................................................................................... 138
Upgrade display firmware. ............................................................................................... 138
Upgrade converter firmware............................................................................................ 139
Install/Add languages ....................................................................................................... 140
Appendix C. FAQs................................................................................................................. 142
Appendix D. Front panel cut-out drawing ......................................................................... 144
MJK cut-out download...................................................................................................... 145
Appendix E. MJK test certificate.......................................................................................... 146
Appendix F. Log files ............................................................................................................ 147
Appendix G. Digital input/output connections ................................................................. 151
Appendix H. Remote slave display unit .............................................................................. 152
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Connection board for remote slave display unit ........................................................... 153
Converter connection board with master display unit ................................................. 154
Wiring..................................................................................................................................155
Configuration for the master unit ....................................................................................155
Configuration for the slave unit .......................................................................................155
Main menu overview ............................................................................................................. 156
Converter setup menu overview ......................................................................................... 158
Service menu overview ......................................................................................................... 164
Display setup menu overview .............................................................................................. 168
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Contact
You can always contact your local representative or the MJK hotline for advice
and guidance:
other products and the people behind them.
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EN 3.05 Version 2105
MJK declaration of conformity / 
8

MJK declaration of conformity

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MagFlux® Series
EN 3.05 Version 2105
Introduction /Introduction - MagFlux® Q 
9
1.

Introduction

The MagFlux® is suitable for flow measurement in all kinds of conductive fluids, and it is especially suited for flow measurement of water, waste water, sludge and other fluids containing particles. The flow meter is easy to install and put into service. However, read this manual first to learn about the MagFlux® electromagnetic flow meter and all its features.

Introduction - MagFlux® Q

MagFlux® Q is especially suited for seawater and similar conditions as it is created in ABS plast, no outer parts in metal.

Operating principles

The MagFlux® electromagnetic flow meter is an instrument for measuring the flow of conductive fluid using Faraday's electromagnetic induction law, and consequently the fluid must be electrically conductive.
As illustrated above, a magnetic field with density B - perpendicular to the direction of flow - stretches across a fluid flowing within an electrically isolated pipe. The magnetic flux will induce a voltage difference (E) that can be measured between two electrodes arranged perpendicular to the direction of flow and the magnetic field. The voltage is proportional to the velocity (V) of the fluid.
E = B x D x V x k [Volt] where
E is the voltage that is induced between the two electrodes B is the magnetic flux density D is the distance between the two electrodes V is the fluid velocity k is a dimensionless constant
The flow of the fluid Q (m3/s) is given by the following formula:
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Introduction /The MagFlux® Flow Meter 
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2. Q = π x D2 x V / 4 => V = 4 / (π x D2) where
π : is the constant pi (= 22/7) D: is the internal diameter V: is the fluid velocity The combination of above formulas 1. and 2. gives the following formula:
E = K x B x D x Q x 4 / (π x D x D) = 4 K x B x Q / (π x D)
Evidently, the voltage E is proportional to the actual flow.

The MagFlux® Flow Meter

Measurement
Electromagnetic flow meters may have either direct current (DC) or alternating current (AC) excitation. When systems are AC excited, electrostatic and/or electromagnetic noise may influence the measurements. A DC excited system however, is less sensitive to noise produced by electromagnetic induction, simply because the voltage induced over the electrodes will be a DC voltage. The drawbacks are measurement errors due to electrochemical polarization between the electrodes and the fluid.
The MagFlux® flow meters are excited by a 2.5 Hz square wave and thereby eliminate the drawbacks of both DC and AC systems. A microprocessor receives and measures the amplitude of the pulse with a 16-bit resolution, and converts and displays the result on the display unit.
Electrode cleaning
Electrode cleaning is always activated to maintain clean and accurate electrodes. The operating principle is a 55 Hz AC voltage superimposed on the normal 2.5 Hz square wave. This step effectively reduces the risk of a dirt layer build-up on the electrodes that eventually will deteriorate and finally isolate electrical contact to the flow media.
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EN 3.05 Version 2105
Safety, repair and product identification /Safety instructions 
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1.
2.
3.
4.

Safety, repair and product identification

Safety instructions

Read this manual carefully. Pay attention to the environment on the installation site. Wear necessary protective equipment and follow all current safety regulations. The MagFlux® can invoke a start signal for dangerous machinery. Always ensure that connected machinery and other equipment are effectively put out of service (that is to remove the main fuses and lock main and security switches in off­position) before commencing configuration, fault finding, servicing, maintenance work, etc.
Warning: There is a risk of lethal, electrical shock from Mains supply terminals named N and L or - and +. Be careful not to touch these terminals - marked in red in the
following - while the MagFlux® is being serviced.
10-30 VDC
24 VAC
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Safety, repair and product identification /Physical mounting 
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115 VAC
230 VAC

Physical mounting

The MagFlux® flow converter/flow meter must not be mounted in explosion hazardous areas!

Repair

Repair must only be made by this company or by a service representative approved by us.

MJK product identification

A delivery will usually consist of a MagFlux® converter and a MagFlux® flow sensor. Check that the item(s) delivered corresponds to the ordered item(s). The part number, serial number, calibration code and electrode/lining data are printed on an identification label on the flow sensor (see the following example):
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Safety, repair and product identification /MJK product identification 
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This calibration code (Cal. code) is unique and provides the MagFlux® converter with information about flow sensor number, nominal diameter of the flow sensor and calibration data for the flow sensor.
The current converter firmware requires an eight character input, but also accepts six characters plus two OK. The current example (dw5uq4) would require that you enter: d w 5 u q 4 OK OK, where OK indicates that you press the OK key without selecting any character. Only lower case letters can be entered via the MagFlux® keypad.
If changes are needed to the unique sensor calibration code
following initial setup, this is the calibration code that the Sensor Calibration Code menu must contain (see Initial setup(see page50)).
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EN 3.05 Version 2105
Flow sensor /Minimum conductivity 
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•
•
•
•
•
•
•
•
•
•
•
•
•
•

Flow sensor

The following conditions must be obtained to get the full benefit of the MagFlux® flow sensor.

Minimum conductivity

The conductivity of the measured media must be greater than 5 µS/cm.

Liner selection

Use hard rubber lining for drinking water and waste water.

Liner selection, cont.

Use PTFE lining for chemicals and food industries Use ABS lining for seawater (applies to MagFlux® Q only).

Electrode selection

Steel AISI 316TI-1.4571 for general purpose, sewage, water and district heating systems
Hastelloy for sea water. Tantalum, titanium and platinum for chlorine and other aggressive chemicals.

Mounting location

To obtain a stable and accurate flow measurement it is very important that the flow sensor is mounted correctly in the pipe system.
There must be no flow fluctuations. Avoid locations where vacuum can occur; especially for flow sensors with PTFE linings. Avoid locations with vibrations from, for example, pumps. Avoid locations with extensive temperature changes. Avoid corrosive environments and locations with a great risk of condensation, or consult factory for special builds for these locations. Avoid air at the measuring point. Take care that condensate and water cannot enter the connector box on the flow sensor. There must be sufficient free space around the flow sensor.
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Flow sensor /Mounting location 
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However, the MagFlux® can be buried in a well or closed dug-down space. It is created with a significant layer of protective paint preventing rust. But gravel and dirt can wear the paint, thereby decreasing the level of protection. Therefor, it is strongly recommended to leave a gravel-free and dry space for the MagFlux® installation as illustrated below.
Important: Observe that the correct flow direction is set in the MagFlux® Converter Setup menu and in the Service Menu. Default flow direction is A (flow direction towards
left).
The flow directions A or B are clearly shown on the name plate.
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Flow sensor /Pressure loss 
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Pressure loss

Pressure loss can easily be determined, if the nominal pipe diameter is greater than the MagFlux® flow sensor. See this pressure loss diagram:
The diagram illustrates that decreasing the internal diameter from 100 mm (DN) to 80 mm (DO) will cause a pressure loss of 0.003 Bar @3 m/s.
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EN 3.05 Version 2105
Flow sensor /Accuracy 
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Accuracy

According to the type and size of the flow sensor, the measuring accuracy will be better than 0.25%, provided that the flow sensor has the correct dimension.

MJK sizing

The flow sensor should be selected so the flow velocity through the sensor will be between 0.2-10 m/s. We recommend that flow velocities in tubes are kept between 1-3 m/s for reliable and safe operation. See also the dimensioning table below and the dimensioning chart in the following section.
Min and max flow, metrics
DN Qmin Qmax
0.2 m/s 10 m/s
[l/h] [l/h]
15 127 6362
20 226 11304
25 353 17676
32 579 28944
40 905 45360
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EN 3.05 Version 2105
Flow sensor /MJK sizing 
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50 1414 70560
Min and max flow, metrics
DN Qmin Qmax
0.2 m/s 10 m/s
[m3/h] [m3/h]
65 2,39 119
80 3,62 181
100 5,65 283
125 8,84 442
150 12,7 636
200 22.6 1131
250 35.3 1767
300 50.9 2545
350 69.3 3464
400 90.5 4524
450 115 5726
500 141 7069
600 204 10179
700 277 13854
800 362 18095
900 458 22902
1000 565 28274
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Flow sensor /MJK sizing 
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Min and max flow, metrics
DN Qmin Qmax
0.2 m/s 10 m/s
[m3/h] [m3/h]
1200 814 40715
The Q
max
is equal to 20 mA factory preset.
Min and max flow, imperial
Qmin Qmax
0.6 ft./s 30 ft./s
[GPM] [GPM]
½” 0.559 28.0
¾" 0.995 49.76
1” 1.550 77.82
1¼" 2.549 127.4
1½” 3.984 199.7
2” 6.226 310.7
2½” 10.52 523.9
3” 15.93 796.9
4” 24.87 1246
5” 38.92 1946
6” 55.91 2800
8" 99.50 4,979
10" 155.4 7,780
12" 224.1 11,205
14" 305.1 15,258
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EN 3.05 Version 2105
Flow sensor /Sizing chart 
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Min and max flow, imperial
Qmin Qmax
0.6 ft./s 30 ft./s
[GPM] [GPM]
16" 398.5 19,919
18” 506.3 25,210
20” 620.8 31,120
24” 999.1 44,910
28” 1220 74,920
32” 1594 79,620
36” 2017 100,800
40” 2497 124,500
48” 3584 179,300

Sizing chart

Example: A MagFlux® with an internal diameter of 100 mm can measure flow rates between approx. 5.6 m3/h and 290 m3/hand the fluid velocity is 1.5 m/s at a flow rate of approx. 42 m3/h.
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EN 3.05 Version 2105
Flow sensor /Sizing chart 
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EN 3.05 Version 2105
Flow sensor /Sizing chart 
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EN 3.05 Version 2105
Flow sensor /Pipe system 
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1.

Pipe system

To ensure a laminar flow without turbulence upstream of the MagFlux® flow sensor, the flow sensor must be mounted in a location which is free from interfering elements like valves, Ts, bends, pumps, etc. For that reason, the MagFlux® flow sensor must be mounted in a straight pipe at a distance from interfering elements of minimum 3 x DN upstream and minimum 2 x DN downstream.
Important: Valves should always be mounted on the downstream side of the MagFlux® flow sensor!
Important:When installing a magnetic inductive flow meter, it is important to comply with the installation criteria describedhere: The mentioned respect distances for up/downstream flow respectively, are minimum requirements.If your installation has an already turbulent flow profile due to bends, valves, plug-in fittings etc. in the pipeinstallation, it may be necessary with a longer respect distance than stated in the data sheet. For the meter tocomply with its measuring accuracy, these respect distances apply both before and after the meter. If in doubtabout the installation and the respective respect distances, please contact support. We are happyto assist and advise on
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EN 3.05 Version 2105
Flow sensor /Pipe system 
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2.
3.
4.
the optimal location of the flow meter according to your application.
If it becomes necessary to use reducers, the inner angle must not exceed 7,5°.
The minimum length to keep the angle below 7,5° can be checked by means of the formula below:
L = (D - d) x 7.63 where D is the large diameter and d the small diameter of the reducer.
Example: If a MagFlux® flow sensor in dimension DN 80 is mounted
downstream of a 100 mm pipe, the reducer must then have a length of minimum 152,6 mm in order to keep the inner angle below 7,5°.
Flange connections must be assembled concentrically on both the upstream and the downstream side. Measuring accuracy will be affected by turbulence in the liquid from poorly made connections.
Important: Gaskets and grounding rings must also be mounted concentrically!
The MagFlux® flow sensor should always be filled with liquid. For that reason, the flow sensor must not be mounted at the highest point of the pipe system or in free outlets, where gravity could empty or partially empty the pipe.
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EN 3.05 Version 2105
Flow sensor /Pipe system 
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5.6.The MagFlux® flow sensor can be mounted vertically or horizontally. If the flow sensor is mounted vertically, the flow direction should always be upwards. In that way, the effect from possible bubbles in the liquid will be significantly reduced, just as it will ensure that the flow sensor is always filled with liquid. In case the liquid is carrying particles, for example when measuring sludge, sewage, etc., the flow sensor must be mounted vertically.
When mounting horizontally in pipes with free downstream outlet, the MagFlux® flow sensor should be mounted such that it will always be filled with liquid, for example in a bend situated lower than the height of the outlet. In case the liquid is carrying particles, e.g. when measuring sludge, sewage etc. the flow sensor must be mounted vertically.
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Flow sensor /Pipe system 
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7. When mounting horizontally the MagFlux® flow sensor can be rotated max. +/­45° seen from the connection end. If the flow sensor is rotated more than 45°, one of the electrodes may not be in full contact with the liquid.
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EN 3.05 Version 2105
Flow sensor /Pipe system 
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Pipe system - MagFlux Q special conditions

For MagFlux® Q, a special design allows using a short build-in construction which provides a very accurate flow measurement even at minimum one pipe diameter of straight pipe upstream and one pipe diameter of straight pipe downstream from the centre of the flow sensor.
At 1 x diameter before and after the sensor there will be an accuracy of up to 0,5%.
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EN 3.05 Version 2105
Flow sensor /Cabinet mounted on the flow sensor 
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Cabinet mounted on the flow sensor

The cabinet is mounted on the flow sensor with four pcs. 6x12 hex cap screws.

Potential equalization and grounding

Type 7100/7200/8200 in conductive pipes

Note! The MagFlux® flow sensor must be connected to an effective ground connection, and the wire dimension must be at least 1.5 mm2.
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EN 3.05 Version 2105
Flow sensor /Potential equalization and grounding 
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Note! Does not apply to the MagFlux® Q.
MagFlux® in conductive pipes, MagFlux® Q
Note! Does not apply to the MagFlux® Q.

Type 7100/7200/8200 in non-conductive pipes

Note! The MagFlux® flow sensor must be connected to an effective ground connection, and the wire dimension must be at least 1.5 mm2.
Note! Does not apply to the MagFlux® Q.
MagFlux® in non-conductive pipes, MagFlux® Q
Note! Does not apply to the MagFlux® Q.
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EN 3.05 Version 2105
Flow sensor /Cathodic protection 
30

Cathodic protection

Type 7100/7200 in conductive pipes

Note! The Sensor must be isolated from the cathodic protected pipes, this is done by using insulated bolts and nylon washers.

Type 7100/7200 in non-conductive pipes

Note! The Sensor must be isolated from the cathodic protected pipes, this is done by using insulated bolts and nylon washers.
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EN 3.05 Version 2105
Flow converter /Electrical mounting 
31

Flow converter

Electrical mounting

Warning: The MagFlux® flow converter/flow sensor must not be mounted in explosion hazardous areas! Loosen the four screws (position indicated by arrows) and remove the display unit to gain access to the terminals.
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EN 3.05 Version 2105
Flow converter /Power supply 
32

Power supply

The MagFlux® flow converter must be supplied from a properly fused mains outlet, a 24 volt AC outlet, or a 10 - 30 V DC power supply/battery.
Power Supply 230 V AC, 115 V AC or 24 V AC
Terminal Designation
PE Protective ground
N 230 / 115 / 24 V AC neutral
L 230 / 115 / 24 V AC live
Power Supply 10 - 30 V DC
Terminal Designation
PE Protective ground
- DC neutral
+ DC live
The internal fuse ratings are:
Internal Fuse Ratings
Voltage Rating Order no. Dimension
230 V AC 63 mA T 550030 5 x 20 mm
115 V AC 125 mA T 550035 5 x 20 mm
24 V AC 500 mAT 550049 5 x 20 mm
10 - 30 V DC 1.0AT 550051 5 x 20 mm
The technical specifications/requirements for a 10 - 30 V DC power supply/battery are:
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EN 3.05 Version 2105
Flow converter /Change power supply voltage 230/115 V AC 
33
1.
2.
3.
4.
5.
Technical Specifications for 10 - 30 V DC Power Supply
Power consumption without display < 5 W
Power consumption with display < 8 W
Peak start current @12 V DC,1 second Approx. 1,5 A
Peak start current @24 V DC,1 second Approx. 1 A

Change power supply voltage 230/115 V AC

To change the input mains voltage from 230 VAC to 115 VAC (or vice verse) proceed as follows:
Loosen the four screws on the front and lift out the display (see Electrical
mounting(see page31)).
Note down the color and position of the wires in the terminal blocks, and loosen the terminal screws. Unscrew the two screws that hold the metal cover and then remove it. Unscrew the four screws that hold the mother PCB (the printed circuit board with all the electrical components). Remove the mother PCB and look at the back side. This is what you should see (230 V AC configuration):
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EN 3.05 Version 2105
Flow converter /Change power supply voltage 230/115 V AC 
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6. Unsolder and remove the jumper indicated by the arrow.
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EN 3.05 Version 2105
Flow converter /Change power supply voltage 230/115 V AC 
35
7.
8.
9.
10.
Look at the following picture to see where two new jumpers must be inserted (115 V AC configuration):
Insert and solder two jumpers (wires) in the positions indicated by the arrows. Turn around the PCB and replace the 63 mAT fuse on the right side with a 125 mAT fuse (or vice verse going from 115 VAC to 230 VAC). Re-insert the PCB and re-assemble the flow meter (see also steps 4, 3, 2 and 1).
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EN 3.05 Version 2105
Flow converter /Analogue output 
36
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•
•
•
•
•
•
•
•
•

Analogue output

The analogue output is an active output with a max. load of 600Ω.
Analogue Output
Terminal Designation
AO + 4-20 mA
AO - 4-20 mA
The analogue output can be programmed for indication of:
Flow forward Flow reverse Forward and reverse (12 mA = 0) Forward and reverse (4 mA = 0) Not in use
See details in sections mA output(see page70), Flow forward(see page71), Flow reverse(see
page72), Forward & rev. (12mA=0)(see page73) and Forward & rev. (4mA=0)(see page74).

Digital outputs

MagFlux® has two digital outputs - DO 1 with an opto (light triggered) relay and DO 2 with a mechanical relay. They can both be programmed for the following functions:
high and low flow alarms pulse output for counters R Totalizer Forward, Reverse and Sum. batch 1 and batch 2 counters empty pipe alarm flow direction indication
Opto Relay (DO1)
Terminal Designation
DO 1 Com Max. 28 VAC/ 28 VDC /300 mA
DO 1 NO
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Mechanical Relay (DO2)
Terminal Designation
DO 2 Com Max. 28 VAC/ 28 VDC /500 mA
DO 2 NO
DO 1 shares the common terminal (Com) with DI. See also application examples in Appendix G. Digital input/output
connections(see page151).

Digital input

MagFlux® has one digital input which is activated with a voltage higher than 10 V DC and deactivated with a voltage lower than 5 V DC.
Digital Input
Terminal Designation
DI Com
DI Max. 30 V DC
The digital input (DI) can be programmed for the following functions:
start and pause batch 1 and batch 2 counters reset counters R Totalizer Forward and Reverse reset counter R Totalizer Sum
DI shares the common terminal (Com) with DO 1. See also application examples in Appendix G. Digital input/output connections(see
page151).
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Local (compact) flow sensor

Connect the compact (local) flow sensor to the flow converter with the wires coming from the flow sensor as shown below.
Compact Flow Sensor
Terminal Signal Designation Colour from
sensor
1
Liquid GND Built-in liquid ground electrode Black/shield
2 E1 Electrode Red
3 E2 Electrode White
4 GND Ground Black
5 L1 Coil Blue
6 L2 Coil Brown
7, 8 and 9 not used

Remote flow sensor

Connect the remote flow sensor to the flow converter with the sensor cable.
Important: Do not use other cable types!
Important: Terminals 1 and 4 must be shunted!
The extension cable length between converter and sensor must under normal circumstances not exceed 50 meters. Power lines running in parallel and noisy environments may reduce the max. length to less than 50 meters. Consult us for advice and guidance.
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Remote Flow Sensor MagFlux® Sensor Cable
TerminalSignal Desig- nation Color before
March2011
Color from March 2011
1
Liquid GND
Shield - -
2 E1 Wire pair no. 1 Red Red
3 E2 Wire pair no. 1 White White
4 GND Wire pair no. 3 Black Black
5 L1 Wire pair no. 2 Green Blue
6 L2 Wire pair no. 2 White Brown
7, 8 and 9 not used
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Flow converter /Converter connection board - local 
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Converter connection board - local

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MagFlux® Series
EN 3.05 Version 2105
Flow converter /MJK Connection board - remotely mounted converter 
41

MJK Connection board - remotely mounted converter

Note! Before March 2011, the blue wire for terminal 5 was green and the brown wire for terminal 6 was white. Note! After November 2018, the latch between terminal A, 1 and 4 is build into the PCB.
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System configuration examples /MJK compact converter and display unit on flow sensor 
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System configuration examples

MJK compact converter and display unit on flow sensor

Configuration: The MagFlux® converter and display unit is mounted directly on the MagFlux® flow sensor. Order numbers for this configuration:
207xxx MagFlux® Flow Sensor 207920 MagFlux® Converter with display unit for sensor mounting
207920 consists of:
207940 Display Unit 807000 Converter PCB 500214 Field Cabinet bottom part for sensor mounting

MJK remote converter with connection box on flow sensor

Configuration: The MagFlux® converter and display unit is remote mounted, for example when the sensor must be IP 68 drown-proof.
.
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Order numbers for this configuration:
207xxx MagFlux® Flow Sensor 207925 MagFlux® Converter with Display Unit for wall mounting 691080 MagFlux® Sensor cable 579035 MagFlux® Gel Potting Kit IP68
207925 consists of:
207940 Display Unit 807020 MagFlux connection PCB (see picture below) 820050 Blind Lid 800070 Cabinet bottom part for sensor mounting 800075 Cabinet bottom part for wall mounting
PCB

Wiring schematic #1

Wiring schematic for MJK remote converter with connection box on flow sensor(see
page42).
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System configuration examples /MJK remote display and multiple converters wiring 
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Flow sensor
Connect one end of the cable to the flow sensor as described in the table below. All three shields are twisted and connected in slot 1. The white lead in pair no. 3 is not used.
B Connection for remote converter
Terminal Signal Wire Color
1 GND Shield -
2 E1 Pair 1 Red
3 E2 Pair 1 White
4 GND Pair 3 Black
- - Pair 3 -
5 L1 Pair 2 Blue
6 L2 Pair 2 Brown
7,8,9 Not used
Remote converter (and display unit)
Connect the other end of the cable to the remote converter as shown to the right. The 1 Shield lead goes into Ground from flow pipe, the 2 Red lead goes into E1 Red, the 3 White lead into E2 White, and so on.

MJK remote display and multiple converters wiring

Configuration: Two locally mounted MagFlux® flow sensors and converters with blind lid and one remotely mounted display unit. The communication between the sensors and the display unit is executed on shielded twisted 2- and 4-wire cables using the Modbus® communication protocol on RS-485.
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Order numbers for this configuration:
207xxx MagFlux® Flow Sensor (2 pcs.) 207925 MagFlux® Converter with Display Unit for wall mounting 207910 MagFlux® Converter w/o display sensor mounting, 230/115VAC
207925 consists of:
207940 Display Unit 807021 MagFlux® connection PCB 820050 Blind lid 800070 Cabinet bottom part for sensor mounting 500210 Cabinet bottom part for wall mounting
Note: The total maximum cable length for the 2- and 4-wire shielded twisted cables is 1000 meters.

Wiring schematic #2

Wiring schematic for MJK remote display and multiple converters wiring(see page44).
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Local flow sensor 1 2-wire twisted shield cable: Connect lead 1 to slot A,
lead 2 to slot B and shield to slot -.
Local flow sensor 2 2-wire twisted shield cable: Connect lead 1 to slot A, lead 2 to slot B and twisted shield to slot -. 4-wire twisted shield cable: Connect lead 1 to slot A,
lead 2 to slot B, lead 3 to slot + and lead 4 and twisted shield to slot -.
Remote display unit 4-wire twisted shield cable: Connect lead 1 to slot A,
lead 2 to slot B, lead 3 to slot + and lead 4 and twisted shield to slot -.
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Startup

MJK initial checks

Before switching power on for the MagFlux®, the following steps must be checked.
The local mains power supply voltage corresponds to the voltage printed on the identification label of the MagFlux® flow converter. All electrical connections are made in accordance with the electrical connection diagram shown in Converter connection board - remote(see page41). All terminal screws are tightened. All cable glands are tightly secured. All grounding connections are made in accordance with the instructions in
Potential equalization and grounding(see page28).

Initial flow measurement

Make sure that the MagFlux® flow sensor is completely filled with liquid. Turn on power to the MagFlux® flow converter and wait one minute. Verify or enter the calibration code of the MagFlux® flow sensor in the Converter Setup/Service Menu/Sensor Calibration Code menu (see also Service
menu(see page97)). If the entered calibration code is incorrect read the correct
calibration code on the converter as explained in section on product identification.

Flow direction check

Allow free flow through the sensor. Check on the MagFlux® display unit screen that the flow value increases. If the value goes negative, check that the Flow direction option(see page92) is set correctly and/or check the electrical connections on the flow sensor.

Language selection

The default display language is English (GB). If another language is required, proceed with step 2. From the Main Menu, select Display Setup(see page108). Select Language(see page109) and chose the required language.
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MJK display read-out, one connected unit

All MagFlux® display read-outs are illustrated and described in this manual. Section
MagFlux® menus(see page53) gives a detailed description of the displays shown during
setup, configuration and normal operation. A 5-line LCD screen displays symbols and the actual status during setup, configuration, servicing and normal operation (see also
Specify main screen(see page54)).
The display shown above will, in the remaining parts of this manual, be stylized to appear like this:

Display read-out, several connected units

When several units are interconnected, for example an Oxix® dissolved oxygen transmitter and MagFlux® flow meter with different names and Modbus ID numbers, a Display Overview Menu is available at top level (press Back repeatedly):
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All connected units are displayed and sorted by their ID numbers, and consequently each unit can be selected and set up as required:
or
Important: More connected units can only by managed as described above if each unit has been assigned a unique name and Modbus ID number. See Modbus(see page111) for details.

MJK display keys

The keys and the soft keys (variable key functions determined by the display firmware) are used for initial programming and normal operation of the flow meter. The function(s) of the four available keys is displayed at the bottom of the display. The symbols and actual functions are described in detail in the sections that describe the individual menus.
Contrast adjustment
Adjust the display contrast by pressing the two outmost keys simultaneously (indicated by the keys) and press the up/down keys as required.
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Save the new setting by pressing the two outmost keys simultaneously.
System reset
You can reset and refresh all system displays and key combinations by pressing all four keys simultaneously. This feature is especially useful during for example a service call, where the display language (Dutch, Danish, etc.) cannot be understood by the service person. A system reset immediately sets the display language to (GB) English. The system reset must not be confused with the ultimate Recover factory settings (see
Factory settings(see page116)) which deletes all local configurations/settings and replaces
them with default factory settings.

Initial setup

Initial setup is normally performed by our personnel and is required to get started with the MagFlux® flow meter. A unique sensor calibration code provides the MagFlux® flow converter with information about flow sensor number, nominal diameter and calibration data.
If changes to the unique sensor calibration code are needed following physical installation and initial setup, the Sensor Calibration Code menu must be addressed. A
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password is not required to enter or change the sensor calibration code. Toggle through the displayed digits with the right-arrow key when prompted for a password and press OK.
Press the Setup key on the display (see below) to enter the MagFlux® main menu.
Press the up/down keys to highlight the required menu line (here: Converter Setup) and press OK.
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Select Service Menu, enter the password (the default password is "00000" (five zeros) in Sensor Calibration Code.
Enter the calibration code read from the flow sensor label (or pass through or change the displayed calibration code) and press OK. See also details regarding the calibration code in the section on product identification. Select the correct flow direction in the Set Flow Direction menu and press OK. The MagFlux® is now configured with default settings and is ready for use.
Note: If the MagFlux® sensor has not been pre-configured from the factory with a sensor calibration code, the calibration code procedure is somewhat different form the just mentioned.
See the following steps to configure a non-configured sensor with a calibration code.
Apply power to the MagFlux® sensor. When the Sensor Calibration Code menu appears (see above), enter the calibration code read from the flow sensor label and press OK. Select the correct flow direction from the Set Flow Direction menu and press OK. Sensor calibration code configuration is now finished, and you are returned to the main menu.
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MagFlux® menus

All the MagFlux® menus and sub menus are shown and described in the following sections. Continuous overviews of the menu and sub-menu structures are available from the appendix.

Main menu

Press the Setup key on the MagFlux® display (see below) to enter the MagFlux® main menu:
The MagFlux® main menu contains a number of sub menus:
Press the up/down keys to highlight the required menu line (here: Specify Main Menu) and press OK.
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Specify main screen

The Specify Main Screen menu allows you to customize the MagFlux® display to suit your requirements. You can add and remove the five available display lines and configure them individually.
Press the up/down keys to highlight the required menu line and press OK. Press the up/down keys to highlight the required option and press OK.
The available options are:
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Not in use: The line will not be used. The set free space will be used by the other lines. Sensor Name: The actual sensor name - for example, a number, a location, a name or a function - will be displayed. Note: The actual sensor name is defined later on in the Set Sensor Name menu, see Set sensor name(see page64).
Flow: Actual flow rate (in units chosen in the menu for primary units). RFTot: Resettable Forward Totalizer counter 32bit (unit L) 4 294 967 295 L RRTot: Resettable Reverse Totalizer counter 32bit (unit L) 4 294 967 295 L RTTot: Resettable Total Totalizer counter 32bit (unit L) 2 147 483 647 L (+/- half
of Tot) FTot: Forward Totalizer counter 64bit (unit mm3) 18 446 744 073 709 551 615 mm
3
RTot: Reverse Totalizer counter 64bit (unit mm3) 18 446 744 073 709 551 615 mm
3
Cnt: Totalizer sum Counter 64bit (unit mm3) 9 223 372 036 854 775 807 mm
3
(+/- half of Tot)
Flow Direction: Flow direction A or B will be displayed Batch 1: Timer for batch volume 1 Batch 2: Timer for batch volume 2 Batch 1 DN: Displays the missing amount of Batch volume 1 (DN = down) Batch 2 DN: Displays the missing amount of Batch volume 2 (DN = down) Batch 1Cnt: Batch 1 Counts (number of batches) Batch 2 Cnt : Batch 2 Counts (number of batches) Batch 1 Vol: Batch 1 Volume Batch 2 Vol: Batch 2 Volume Clock: Time and date 24hTot: The total flow for 1 day (24 hours) logged at midnight (12 PM).
The size of the display lines will automatically increase or decrease as the number of display lines is removed or added to maximize the field of view for the measured values.

MJK factory settings

The Factory Settings menu resets the display to default settings, to metric settings or to US settings. Note: The converter settings are not changed from this menu. Converter settings are covered in Converter setup(see page65).
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Press the up/down keys to highlight the required menu line (here: Factory Settings) and press OK.
Press the up/down keys to highlight the required option and press OK.
The available options are:
Cancel: Exit the menu without changes. Default: When Default is selected, the following settings are not affected and
remain as chosen by the user:
Sensor Name Device ID Flow Direction DN, size Calibration Calibration Code
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Per default, the in- and outputs are not activated from the factory. Activate the in- and outputs by configuring the functions with, for example, the default values shown in the following tables:
MagFlux Default DI/DO Settings MagFlux Default 20 mA Settings
MagFlux Default DI/DO Settings
Digital Output 1 (opto)
- DO1
Digital Output 2 (mech.) - DO2
Digital Input - DI
Counter R Totalizer Forward
Counter R Totalizer Forward
RESET R Totalizer Forward
Counter R Totalizer Reverse
Counter R Totalizer Reverse
RESET R Totalizer Reverse
R Totalizer Sum R Totalizer Sum RESET R Totalizer Sum
Batch Counter 1 Batch Counter 1
Start / Pause Batch counter 1
Batch Counter 2 Batch Counter 2
Start / Pause Batch counter 2
Low Flow Low Flow
High Flow High Flow
Flow Direction Flow Direction
Empty Pipe Empty Pipe
Note: The same function can not be on assigned to both relays.
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MagFlux Default 20 mA Settings
Metric US
DN [mm]
Flow [m3/h]
Size Flow [GPM]
15 5 ½" 30
20 10 3/4" 50
25 20 1" 75
32 30 1¼" 100
40 50 1½" 200
50 75 2" 300
65 100 2½" 500
80 200 3" 800
100 300 4" 1000
125 400 5" 2000
150 600 6" 3000
200 1000 8" 5000
250 2000 10" 7700
300 2500 12" 10000
350 3000 14" 10000
400 4500 16" 20000
450 6000 18" 25000
500 7000 20" 30000
600 10000 24" 40000
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MagFlux Default 20 mA Settings
Metric US
DN [mm]
Flow [m3/h]
Size Flow [GPM]
700 15000 28" 60000
800 20000 32" 80000
900 25000 36" 100000
1000 30000 40" 100000
1200 40000 48" 200000
Set to metric: All converter-related units can be set to the following units (default values in bold and italics):
Flow Unit
Tota­lizers
m3/sec
RFTot RRTot RSTot FTot RTot Cnt
l/sec l l l
l l l
l/min hl hl hl hl hl hl
l/h kl kl kl kl kl kl
m3/h
m
3
m
3
m
3
m
3
m
3
m
3
Set to US: All converter-related units can be set to the following units (default values bold and in italics)
Flow Unit
Tota­lizers
ft3/h
RFTot RRTot RSTot FTot RTot Cnt
MGD
ft
3
ft
3
ft
3
ft
3
ft
3
ft
3
GPM
gal gal gal
gal gal gal
MG MG MG MG MG MG
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Data logger

MagFlux® provides a data logger with a capacity of approx. 345.000 entry points. See Appendix E. about test certificate for examples and descriptions of log files. The data logger operates after the FIFO principle (First In, First Out). If the data logger is full and new data are coming in, the oldest data are discarded.
Press the up/down keys to highlight the required menu line (here: Display Data Logger) and press OK.
Select the digits one by one with the left/right keys and set the values with the up/down keys.
Continue until all digits have been set and press OK. The log interval can be set in intervals from 10 sec. up to 9999 sec.
The data log contains:
Date Time Flow values
In case of a power failure, the MagFlux® data logger continues when power returns. If more MagFlux® converters are connected to one MagFlux® display unit, each MagFlux®
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converter has its own individual log interval and can be sorted. All MagFlux® converters share the same memory of 345.000 entry points.
The log data can be shown on the MagFlux® display unit or be stored in an external CSV file. TheField Link software is needed for transfer of data into CSV file format via the USB port in the MagFlux® display unit. The format can be read in, for example Microsoft® Excel®, (see Appendix B. about Field Link software for details).
An example of the log capacity of one sensor versus the time interval is shown in the following table.
Log interval Log capacity
Seconds Minutes Hours Days
10 - 958 39
30 - 2875 119
- 1 5750 239
- 5 28750 1198
- 10 57500 2395
- 30 172500 7187
- 60 345000 14375

Graph display

The content of the Data Logger can be displayed on the MagFlux® display unit by pressing the up/down keys simultaneously (esc), highlighting Flow and selecting Graph.
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The MagFlux® display unit then shows the Graph screen. To return to the Main Menu, select esc by pressing the up/down keys simultaneously. The Y axis is automatically scaled according to the Q
max
of the mA output.
Double-arrow keys jump forward and backward one screen frame at a time. Single­arrow keys move the cursor forward and backward on the screen. The actual values at the cursor position is shown at the bottom of the screen.

Password

A password provides (and prevents) access to all settings in the display and converter unit. The code consists of a numeric 5-digit code between 0 and 65535. If your current password is lost or forgotten, the password protection can be overruled with the code
01750.
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Press the up/down keys to highlight the required menu line (here: Password) and press OK.
Press the up/down keys to highlight the required menu lineand press OK.
The available options are:
Login: Select the digits one by one with the left/right keys and set the values with the up/down keys and press OK. Activate/Deactivate: Write protection. Selecting Activate means that a password must be entered to change vital settings. Deactivate disables password protection. If your current password is lost or forgotten, the password protection can be overruled with the code 01750. Set new password: The selected 5-digit password can be changed as required.
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MagFlux® menus /Set sensor name 
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Set sensor name

A unique name and/or number, a function or a location can be assigned as name for a sensor (here: MagFlux1). It is consequently shown on the main display with up to four display lines.
Press the up/down keys to highlight the required menu line (here: Sensor Name) and press OK.
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To change the default sensor name (MagFlux1), press the left/right keys to highlight the wanted character.
Select the digits one by one with the left/right keys and set the value with the up/ down keys. Continue until the name has been set to, for example, Inlet flow (see the following). Press OK.
The available characters depend on the chosen language. English, for example, provides the following character set:
a b c d e f g h i j k l m n o p q r s t u v w x y z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z <space> 1 2 3 4 5 6 7 8 9 and 0.

Converter setup

Converter Setup provides configuration options for volumes, batches, units, etc. See detailed descriptions in the following sections and in the overview sections at the end.
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1. Press the up/down keys to highlight the required menu line (here: Converter Setup) and press OK.
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2. Press the up/down keys to highlight the required option and press OK.
The available options are described in detail in the following sections.

Minimum flow

Sets the minimum forward and reverse flow rate. MagFlux® flow meters are default set to 0,1 m/s. For other values, see Sizing Chart(see page20). The unit for the flow rate can be set from the Units option (see Units(see page70)).
You can set both the forward and reverse minimum flow. By setting the minimum flow, you indicate when the MagFlux® flow meter should stop measuring.
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The 1 m/s indicates the flow volume at the selected unit.
Select the digits one by one with the left/right keys and set the value with the up/ down keys. When you press OK, Reverse and Forward will change places and you can edit the other one. Press OK to save.
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Averaging

Standard averaging (the first setting) indicates the time period within which measurements are smoothed and averaged.
In Averaging, to change the standard averaging period, select the digits one by one with the left/right keys and set the value with the up/down keys. Press OK.
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1.

Units

Sets the unit for the flow rate. The available units are shown below.
Press the up/down keys to highlight the required unit and press OK.

mA output

When a MagFlux® is connected to a power supply for the first time, the mA output is automatically set to provide 4 mA at zero flow and 20 mA at a flow corresponding to the theoretical Q
max
of the flow sensor. Changes in the mA setting will not affect the relay
output settings.
Note: Both values can be set in the range 10% to 120%, making it possible to increase or decrease the mA signal.
The mA Output parameters can be configured in four different ways. Each option is described in the following sections.
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Using the factory setup, MagFlux® returns to default mA settings corresponding to the chosen MagFlux® flow sensors Q
min
and Q
max
. The mA output is an active output, and
the maximum load is 600 Ohm. The upper limit for the mA output is 20,5 mA:
3,75 mA indicates the mA output is not in use 3,5 mA indicates flow under 4 mA level 20,5 mA indicates flow higher than 20 mA level.
The 20 mA maximum output is rounded up to the nearest round figure.
Example: The maximum flow of 17.676 m3/h for a DN25 is rounded up to 20.000 m3/h.
Flow forward
The mA signal provides 4 mA at zero flow and 20 mA at Q
max
in the forward direction.
The 1 m/s indicates the flow volume at the selected unit.
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Flow reverse
The mA signal provides 4 mA at zero flow and 20 mA at Q
max
in the reverse direction.
The 1 m/s indicates the flow volume at the selected unit.
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Forward & rev. (12mA=0)
The mA signal provides 4 to 20 mA reverse to forward direction with 12 mA at zero flow. The 1 m/s indicates the flow volume at the selected unit.
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Forward & rev. (4mA=0)
The mA signal provides 4 to 20 mA for forward and reverse flow with 4 mA at zero flow. The 1 m/s indicates the flow volume at the selected unit.
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Not in use
The mA Output option is not being used. The 1 m/s indicates the flow volume at the selected unit.

MJK totalizers

The MagFlux® provides six totalizers, each with two or three output options. Up to two totalizers can be assigned to one digital output. The totalizers are:
Resettable Totalizer Forward Resettable Totalizer Reverse Resettable Totalizer Sum
and
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Non-Resettable Totalizer Forward Non-Resettable Totalizer Reverse Non-Resettable Totalizer Sum
The available output options for the resettable totalizers are:
Mechanical Relay (DO2) Opto Relay (DO1) (light-triggered electronic relay) Display only (on the display unit)
The available output option for the non-resettable totalizers is:
Display only (on the display unit)
If a chosen output is not available (dedicated to another function), a Device Exception pop-up message will inform the operator.
Settings and limits for resettable totalizers
Totalizer Forward Unit: Available units are l, hl, kl, m3, ft3, gal and MG. Reset with Digital Input: Reset the totalizer via the digital input (DI). On-time: The pulse length of the opto digital output (DO1) is adjustable from 1
ms to 10 secs. The pulse length of the mechanical digital relay (DO2) is adjustable from 100 ms to 10 secs. Volume between Pulses: Select a volume between pulses in steps of: 0,001, 0,01, 0,1, 1, 10, 100 and 1000.
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MagFlux® Totalizer Output Setting
Metric
Optical DO 1 @100 mSec.
Mechanical DO 2 @100 mSec.
DN [mm] min. max. min. max. Unit
15 0,001 1 0,1 1
m
3
20 0,001 1 0,1 1
m
3
25 0,01 10 1 10
m
3
32 0,01 10 1 10
m
3
40 0,01 10 1 10
m
3
50 0,01 10 1 10
m
3
65 0,01 100 1 100
m
3
80 0,1 100 10 100
m
3
100 0,1 100 10 100
m
3
125 0,1 100 10 100
m
3
150 0,1 100 10 100
m
3
200 0,1 1000 10 1000
m
3
250 1 1000 100 1000
m
3
300 1 1000 100 1000
m
3
350 1 1000 100 1000
m
3
400 1 1000 100 1000
m
3
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MagFlux® Totalizer Output Setting
Metric
Optical DO 1 @100 mSec.
Mechanical DO 2 @100 mSec.
DN [mm] min. max. min. max. Unit
450 1 1000 100 1000
m
3
500 1 1000 100 1000
m
3
600 1 10000 100 10000
m
3
700 1 10000 1000 10000
m
3
800 10 10000 1000 10000
m
3
900 10 10000 1000 10000
m
3
1000 10 10000 1000 10000
m
3
1200 10 10000 1000 10000
m
3
If a required volume between pulses is not contained in the above steps, for example, for a preset to a sampler, use the batch counter option. The relays are limited to a minimum and a maximum of pulses per hour depending on the 20 mA scale and the on­time of the relay in milliseconds.
DO 1 (Opto Relay): The maximum limit is 500 pulses per sec at 1 ms pulse length.
The formula for the minimum flow unit per pulses is:(flow at 20mA) x (pulse delay in
mSec) / 1800000
Example: Min. flow unit/pulses for DN 100 max. flow 300 m3/h ?
Minimum flow unit per pulses = 300 m3 x 100 mSec / 1800000 = 0,016 m3 which is rounded to 0,1 m3 by the MagFlux®
The formula for the maximum flow unit per pulses is:(flow at 20mA)
Example: DN 100 max. flow 300 m3/h ? Maximum flow unit per pulses = 300 m
3
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DO 2 (Mechanical Relay): The maximum limit is 120 pulses per hour.
The formula for minimum flow unit per pulses is:(flow at 20mA) / 120
Example: DN 100 max. flow 300 m3/h ? Minimum flow unit per pulses = 300 / 120 = 2,5 m3 which is rounded to 10 m3 by
MagFlux®
The formula for maximum flow unit per pulses is:(flow at 20mA)
Example: DN 100 max. flow 300 m3/h ? Maximum flow unit per pulses = 300 m
3
Resettable totalizers
Totalizers can be reset from the main menu(see page53)and via thedigital input(see
page37)DI.
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Resettable forward totalizer
RFTot:The Totalizer counts the forward flow volume according to the primary flow direction selected at startup. The Totalizer counts in selected units and is resettable. The counter can be connected to the relays or to the display only. To reset the counter, the totalizer must be present in the main display and be selected by the up/down keys followed by a click on Reset. Alternatively, it can be reset via thedigital input(see page37) DI.
Resettable reverse totalizer
RRTot: The Totalizer counts the reverse flow volume according to the primary flow direction selected at startup. The Totalizer counts in selected units and is resettable. The counter can be connected to the relays or to the display only. To reset the counter, the totalizer must be present in the main display and be selected by the up/down keys followed by a click on Reset. Alternatively it can be reset via thedigital input(see page37) DI.
Resettable Sum Totalizer
RSTot: The Totalizer counts the sum of forward flow volume minus the reverse flow volume according to the primary flow direction selected at startup. The Totalizer counts in selected units and is resettable. The counter can be connected to the relays or to the display only. To reset the counter, the totalizer must be present in the Main display and be selected by the up/down keys followed by a click on Reset. Alternatively it can be reset via the digital input(see page37)t DI.
Non-resettable totalizers
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NR totalizer forward
NR FTot: The Totalizer counts the forward flow volume according to the primary flow direction selected at start up. The Totalizer counts in selected units and cannot be reset. The counter can only be selected from the Main display.
NR totalizer reverse
NR RTot: The Totalizer counts the reverse flow volume according to the primary flow direction selected at start up. The Totalizer counts in selected units and cannot be reset. The counter can only be selected from the Main display.
NR totalizer sum
NR Cnt: The Totalizer counts the sum of forward flow volume minus the reverse flow volume according to the primary flow direction selected at startup. The Totalizer counts in selected units and cannot be reset. The counter can only be selected from the Main display.

MJK batch counters 1 & 2

The batch counters can operate in three different ways: automatically, manually or adaptively, and they deduct a reverse flow from the forward flow.
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In the following descriptions of the batch counters, the function or digital status is illustrated as follows:
Automatic Batch Counter: The automatic batch counter issues a signal, when a preset volume is reached.
On-time: The period of time in which the relay is activated (drawn). Number of preselected (units): The preset batch volume.
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Manual Batch Counter: The counter issues signals as determined by manual start, stop and pause commands. A manual stop is equivalent to a reset command.
Number of preselected (units): The preset batch volume.
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Adaptive Batch Counter: The counter compensates for overrun and insufficient flow.
Number of preselected (units): The preset batch volume.
Maximum Correction: The correction in percent that triggers an error message or an
alarm.
Reset Batch Error: Reset the batch correction percentage to 0%.
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Settings and limits for batch counters
Batch counter units: Available units are l, hl, kl, m3, ft3, gal and MG. Start, stop or pause with Digital Input: The manual and the adaptive batch
counters can be started, stopped or paused via the digital input (DI) On-time: The pulse length of the opto digital output (DO1) is adjustable from 1 ms to 10 secs. The pulse length of the mechanical digital relay (DO2) is adjustable from 100 ms to 10 secs. Volume between pulses: Select a volume between pulses as listed in the table overleaf. The relays are limited to a minimum and a maximum of pulses pr. hour depending on the 20 mA scale and the on-time of the relay in milliseconds.
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MagFlux® Batch Counter Output Settings - Metric
Optical DO1 @100 mSec. Mechanical DO2 @100 mSec.
DN [mm]
min. max. min. max. Unit
Auto­matic
Manually/ adaptive
Auto­matic
Manually/ adaptive
15 0,0002778 0,0138889 5
0,041666 7
0,0138889 5
m
3
20 0,0005556 0,0277778 10
0,083333 3
0,0277778 10
m
3
25 0,001111 0,055556 20 0,166667 0,055556 20
m
3
32 0,001667 0,083333 30 0,250000 0,083333 30
m
3
40 0,002778 0,138889 50 0,416667 0,138889 50
m
3
50 0,004167 0,208333 75 0,625000 0,208333 75
m
3
65 0,005556 0,277778 100 0,833333 0,277778 100
m
3
80 0,011111 0,555556 200 1,666667 0,555556 200
m
3
100 0,016667 0,833333 300 2,500000 0,833333 300
m
3
125 0,022222 1,111111 400 3,333333 1,111111 400
m
3
150 0,033333 1,666667 600 5,000000 1,666667 600
m
3
200 0,055556 2,777778 1000 8,333333 2,777778 1000
m
3
250 0,111111 5,555556 2000 16,66667 5,555556 2000
m
3
300 0,138889 6,944444 2500 20,83333 6,944444 2500
m
3
350 0,166667 8,333333 3000 25,00000 8,333333 3000
m
3
400 0,250000 12,500000 4500 37,50000 12,500000 4500
m
3
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MagFlux® Batch Counter Output Settings - Metric
Optical DO1 @100 mSec. Mechanical DO2 @100 mSec.
DN [mm]
min. max. min. max. Unit
Auto­matic
Manually/ adaptive
Auto­matic
Manually/ adaptive
450 0,333333 16,666667 6000 50,00000 16,666667 6000
m
3
500 0,388889 19,444444 7000 58,33333 19,444444 7000
m
3
600 0,555556 27,777778 10000 83,33333 27,777778 10000
m
3
700 0,833333 41,666667 15000 125,0000 41,666667 15000
m
3
800 1,111111 55,555556 20000 166,6667 55,555556 20000
m
3
900 1,388889 69,444444 25000 208,3333 69,444444 25000
m
3
1000 1,666667 83,333333 30000 250,0000 83,333333 30000
m
3
1200 2,222222 111,111111 40000 333,3333 111,111111 40000
m
3
Limitation of the automatic batch counter on DO1 (Opto Relay):The maximum limit is 500 pulses per sec at 1 ms pulse length.
The formula for the minimum flow unit per pulses is:(flow at 20mA) x (pulse delay in
mSec) / 1800000
Example: Min. flow unit/pulses for DN 100 max. flow 300 m3/h ?
Minimum flow unit per pulses = 300 m3 x 100 mSec / 1800000 =0,016 m3 which is rounded to 0,1 m3 by MagFlux®.
The formula for the maximum flow unit per pulses is:(flow at 20mA)
Example: DN 100 max. flow 300 m3/h ? Maximum flow unit per pulses = 300 m
3
Limitation of the automatic batch counter on DO2 (mech. relay): The maximum limit is 120 pulses per hour.
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The formula for minimum flow unit per pulses is:(flow at 20mA) / 120
Example: DN 100 max. flow 300 m3/h ? Minimum flow unit per pulses = 300 / 120 = 2,5 m
3
The formula for maximum flow unit per pulses is:(flow at 20mA)
Example: DN 100 max. flow 300 m3/h ? Maximum flow unit per pulses = 300 m
3
Limitation of the manual and adaptive batch counter on DO1 or DO2:
The formula for minimum flow unit per pulses is:(flow at 20mA) / 360
Example: DN 100 max. flow 300 m3/h ?
Minimum flow unit per pulses = 300 / 360 = 0,833 m
3
The formula for maximum flow unit per pulses is:(flow at 20mA)
Example: DN 100 max. flow 300 m3/h ? Maximum flow unit per pulses = 300 m
3

High flow/low flow

Provides alarms and triggers relays when certain volume limits are exceeded or not reached.
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The available output options for High Flow and Low Flow are:
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Mechanical Relay (DO2) Opto Relay (DO1) (light-triggered, electronic relay) Display only (signals to the display unit only) Not in use (the High/Low Flow option is not being used)
ON at Flow: Issues an alarm and/or sends a signal when, for example, a high flow limit is
exceeded. OFF at Flow: Cancels an alarm and/or sends a signal when recovering from, for example, an overflow situation. Delay: A delay in seconds can be set to compensate for positive and negative spikes in the flow. The length is the time between an incident and setting an alarm.
Relay Function:
NO (Normally Open) determines the relay state under normal conditions. NC (Normally Closed) determines the relay state under normal conditions.

Flow direction

Indicates the direction of the flow and determines the open/closed state of the relay. The default Flow Direction is set to Direction A.
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The available output options for Flow Direction are:
Mechanical Relay (DO2) Opto Relay (DO1) (light-triggered electronic relay) Display only (signals to the display unit only) Not in use (the Flow Direction option is not being used)
Delay: A delay in seconds can be set to compensate for positive and negative spikes in
the flow. The length is the time between an incident and setting an alarm. Relay Function:
NO (Normally Open) determines the relay state under normal conditions. NC (Normally Closed) determines the relay state under normal conditions.
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Empty pipe

A signal and/or an alarm can be set, when the sensor becomes practically empty (see also Pipe system(see page23)), or if the conductivity drops below 5 µS/cm.
The available output options for Empty Pipe are:
Mechanical Relay (DO2) Opto Relay (DO1) (light-triggered electronic relay) Display only (signals to the display unit only)
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Not in use (the Empty Pipe option is not being used)
Delay: A delay in seconds can be set to compensate for positive and negative spikes in
the flow. The length is the time between an incident and setting an alarm. On-time: The period of time in which the relay is activated (in on-state).
Relay Function:
NO (Normally Open) determines the relay state under normal conditions. NC (Normally Closed) determines the relay state under normal conditions.

24h flow

Measures the total flow (FTot) for 1 day (24 hours) and logs at midnight (12 PM).
NB! It takes up to 48 hours form power on before a valid value can be viewed from the log.

Status

The Status option provides an overview of the in- and output status. The check-boxes can contain four different characters to indicate the current status at that very moment:
X: A cross (X) in a check box indicates an active state /: A blinking forward slant (/) indicates that the input/output is in the process of being activated. Eventually, it turns into a steady X. \: A blinking backward slant (\) indicates that the input/output is in the process of
being deactivated. Eventually, the check box is cleared An empty check box indicates a deactivated state.
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The available output options for Status are:
DO1: Status for Digital Output 1. DO2: Status for Digital Output 2. DI: Status for Digital Input. mA output: The present analog output current in mA.
Pending errors: Lists pending errors. Pending alarms: Lists pending alarms. Pending warnings: Lists pending warnings. Pending information: Lists pending information.

Service menu

The Service Menu provides options intended for service personnel during installation, calibration, operation, monitoring and maintenance. All parameters can be read without any restrictions, but certain parameters can only by changed after a password has been typed.
Sersor calibration code
Each and every MagFlux® has a unique calibration code that contains calibration data for the specific unit. A calibration code could for example be dw5uq4 or 7v3ri0. The current MagFlux® converter firmware requires an 8-character input, but it also accepts 6 characters plus two OK's. If the code is dw5uq4, enter:
d w 5 u q 4 OK OK
where OK indicates that you press the OK key without selecting any character. Only lower case letters can be entered from the MagFlux® keypad.
Important: All letters are lower case letters (e.g. a and not A), and numbers are numbers (e.g. 0, zero and not lower case o). A potential source of error is incorrect reading of numbers and letters, where a lower case o is confused with a zero (0), or a lower case l is confused with the number one (1).
NB! This menu items is usually only used once, when first employing the MagFlux®. However, it can be used later to change the flow direction if needed.
Set Flow Direction: Used to indicate the direction of the flow in the pipe to which the MagFlux® is mounted. The default flow direction is A. See the section on product identification regarding the calibration code and where to find it. A password is not required to add or change the sensor calibration code.
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Converter software ver.
The converter software version and bootload version are displayed, so that you can determine whether a software (firmware) upgrade is required or not.
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Product info
Key product data like serial number, hardware type no., track no., etc. are displayed.
Reset counter time
The counter reset and run-time can be reset for fault finding, error correction and similar service procedures.
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1.
2.
3.
Internal meas. & cal.
For our service technician's use only. Internal measurements and calculations used for adjustments and calibrations.
Minimum velocity
Sets the minimum forward and reverse flow velocity. MagFlux® flow meters are default set to 0,1 m/s. For other values, see Sizing Chart(see page20). You can set both the forward and reverse minimum flow. By setting the minimum flow, you indicate when the MagFlux® flow meter should stop measuring. The value under the selected item indicates the flow volume at the selected unit.
Select the digits one by one with the left/right keys and set the value with the up/ down keys. When you press OK, Reverse and Forward will change places and you can edit the other one. Press OK to save.
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