Presentation for Macnaught's oval gear flow meters including the operating principle of positive displacement flow meters, suitable applications and an introduction to their MX-Series.

1. Oval Gear Flow Meters
& MX Series Overview

2. Presentation Overview
1.Flow meter technology
2.Positive Displacement - Principle of operation.
3.Ideal applications
4.What's new
5.Introducing the new generation MX series Flowmeters.

3. Flow Meter Technologies
There are 4 general groupings by which a flow meter can
be categorised, according to the technology adopted.
 Velocity
 Inferential
 Mass
 Volumetric

4. Volumetric Flow Meter
‘Directly measure the total volume of the fluid passing
through the pipe’
 Oval Gear
 Rotary
 Nutating Disc
 Bi-Rotor
 Spur Gear
 Oscillating Piston

5. Typical Applications
Volumetric
• Batching
• Dispensing
• Dosing
• Fuel Consumption
• Applications requiring accurate totals

6. Positive Displacement
Flow Meter

7. Principle of Operation
A precision engineered measuring
chamber houses a pair of oval
rotors which rotate during flow
conditions

8. Principle of Operation
As the Rotors turn they sweep a measured volume of
liquid through the measuring chamber
Measured Volume

9. Principle of Operation
• Each of the Rotors are
fitted with magnets on the
top face.
• As the Rotor turns the
magnet activates a switch
which is fixed to a Printed
Circuit Board (PCB)
• This in turn generates a
Pulse Output

10. Principle of Operation
Our Sensor Boards (PCB)
incorporate two types of switches.
 Reed Switch
Mechanical Switch
 Hall Effect Switch
Solid State

11. Calculating Flow Rate
• The K- Factor is … ‘The number of Sensor Pulses per Unit of
Measure’ (Litre or US gallon)
• Each meter is assigned an individual K-Factor calculated during
our calibration checks
Example ….
 A meter has an independent K-Factor 36 (= 36 pulses per
litre)
 Each pulse generated by the meter is the equivalent to
1 Ltr ¸ 36 = 27.8 ml
 An Electronic device (Signal Conditioner) is used to convert
these pulse outputs to Flow Rate and Total Flow

12. The Benefits associated
with a PD Meter

13. Technical Specifications
 Accuracy
• +/- 0.5% (500ml in every 100 litres)
 Repeatability
• 0.03% (30ml in every 100 litres)

14. Installation and Commissioning
 Reliable
 Robust
 Easily maintained on site
 No pipe conditioning required
 Suitable for variations in medium
(e.g. viscosity, concentrations, etc. )

15. Suitable Applications

16. Ideal Applications
Dispensing
Refuelling
Vehicle Servicing
Drum Filling
Chemical Packaging

17. Servicing and Transfer

18. Diesel Service Truck

19. Diesel Service Truck

20. Diesel Service Truck

21. Ideal Applications
Batching
Chemical Dilution and Packaging
Food / Baking
Animal Feed

22. Automatic Batching

23. Automatic Filling System

24. Multiple Drum Filling

25. Portable Batching System

26. New application – AdBlue metering

27. Fuel Consumption System
Recirculation Fuel System - Meter Installation - Schematic
Master
Receiving
Instrument
Fuel
Filter
Non-
Return
Fuel
Consumption
Valve calculated as
Meter P1 -
Meter P2
Filter
Meter
P1
Fuel Tank Engine
Meter
P2

28. Ideal Applications
High Viscosity
 Fuels and Lubricants
 Paints and Coatings
 Adhesives
 Printing Ink
 Cleaning Chemicals

29. Agricultural Dispensing

30. The new MX Flowmeter series
 Pulser range only
 Manufactured from solid Billet (St.St
and Aluminium)
 Increased Temp (150oC)
 Pressure Ratings (2000psi)
 Anodised Aluminium body
 Choice of 9 interchangeable Pulse
Output or Display Modules.

31. M-Lock™ Mounting System
We have developed a new ¼”
turn (Bayonet fitting) mounting
system for our Pulse Output and
Display modules.

32. Approved for Hazardous Areas
Intrinsically Safe (Ex ia)
Flameproof (Exd)
Approved ATEX,
Approved IECEx pending
*Note: Ex option only available with the
Industrial Flowmeter Series

33. Online Resources
Macnaught has developed a comprehensive set of
web based resources in order to support customers
throughout the entire process of selecting, applying
and maintaining the MX Flow meter range.
http://www.macnaught.com.au/mx_resources/index.html

34. Interactive Web Tools
Automated Flowmeter Selection Tool
Specifications Tool
Conversion Tool (coming soon)

35. Online Information
General web based resources
Quick Reference Guides
General Specifications
3D Drawings
Instruction Manuals
Service Videos
Brochures

36. Marketing Resources
MX Demo Kit
We have developed an MX
Demonstration Kit to compliment
the launch of the MX series.
table top exhibitions
in-house display
staff training
direct sales tool.

37. Overview of the new
generation MX Series

38. Flowmeter Range overview
 The range consists of over
1,000 flowmeter models.
 Process Connection sizes
range from ¼” to 4”
(6mm – 100mm)
 Flow Rates range from
0.0083 – 1200 l/min
 Stainless Steel and Alum.

39. Range Segmentation
Application Based Focused on Ideal applications
1. Fuel and Oil
2. Solvent
3. Industrial
All Inclusive PART number
1. Includes Flange Styles
2. Includes displays

40. Pulser Output and
Display Modules

41. Type A Compact
Compact
• Polypropylene Housing
• IP 67
• Pulser Output
• 1x Reed switch
• 1x Hall Effect (NPN)

42. Type B Approved Ex ia
Intrinsically Safe
• Stainless Steel
• Pulser Output
• NPN Open Collector
• Approved Ex ia
• ATEX
• FM
• CSA
• IECEx pending
*Note: Ex option only available with the Industrial Flowmeter Series

43. Type C Approved Exd
Flameproof
• Stainless Steel
• Pulser Output
• NPN Open Collector
• Approved Exd
• ATEX
• IECEx pending
*Note: Ex option only available with the Industrial Flowmeter Series

44. Type D PR Digital Display
Display
• Meter Mount or Wall Mount
• Polypropylene Housing IP67
• 7 Digit – 12mm upper
• 7 Digit – 8mm lower
• Total Resettable
• Flow Rate
• Accumulated Total (non-resettable)

45. Type E PRA Digital Display
Display
• Meter Mount or Wall Mount
• Polypropylene Housing IP67
• 7 Digit – 12mm upper
• 7 Digit – 8mm lower
• Total Resettable
• Flow Rate
• Accumulated Total (non-resettable)
Outputs
• 4-20mA (passive)
• Scaled Pulse Output
• Hi/Lo Flow Alarm

46. Type F ER Digital Display
Display
• Meter Mount or Remote Mount
• Aluminium housing IP 67
• 7 Digit – 17mm upper
• 7 Digit – 8mm lower
• Total Resettable
• Flow Rate
• Accumulated Total (non-resettable)

47. Type G ERA Digital Display
Display
• Meter Mount or Remote Mount
• Aluminium housing IP 67
• 7 Digit – 17mm upper
• 7 Digit – 8mm lower
• Total Resettable
• Flow Rate
• Accumulated Total (non-resettable)
Output
• 4-20mA (passive)
• Scaled Pulse

48. Type H ERB Batch Controller
Display
• Meter Mount or Remote Mount
• Aluminium housing IP 67
• 7 Digit – 17mm upper
• 7 Digit – 8mm lower
• Total Resettable
• Flow Rate
• Accumulated Total (non-resettable)
Output
• 4-20mA (passive)
• Scaled Pulse

49. Type T High Temperature
Intrinsically Safe
• Stainless Steel
• Pulser Output
• NPN Open Collector
• Max temp 150oC

50. Accessories
Flanged Process Connections
• Flanges are now screwed into the Meter body
• Available in ANSI, DIN, JIS
Wall Mount Adaptors
• Aluminium wall mount adaptors available for models MX06-25
Strainers / Air Eliminators
• A variety of SS Y-Strainers, and Air Eliminator/Strainer
combinations are available.
Turck Cables
•2mtr cables to suit Ex ia and High Temp Pulser switches

51. Thank You
+44 (0)1280 817304 sales@bellflowsystems.co.uk www.bellflowsystems.co.uk
Bell Flow Systems are the UK representative for Macnaught