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Summary of Contents for Flomec Oval Gear
- Page 1 Industrial Oval Gear Flowmeters with pulse output or electronic display Operation Manual...
- Page 2 General Information This manual provides the necessary information for installation of your Oval Gear flowmeter; for information on any integral electronics or accessories fitted to your flowmeter please consult the relevant electronics or accessory manual. Your Oval Gear flowmeter should only be installed by persons familiar with local regulations, particularly those for workplace Health and Safety, or Hazardous Area regulations where relevant.
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Page 3: Table Of Contents
Table of Contents Introduction ....................... 5 Operating Principle .......................5 Specifications ........................6 Installation ......................... 8 Mechanical Installation....................8 2.1.1 Installation Orientation ....................8 2.1.2 Piping Construction .......................9 2.1.3 Mechanical Support ......................9 2.1.4 Filtration / Straining ....................10 2.1.5 Pipe Connections ......................10 Electrical Installation ....................11 2.2.1 Wiring .........................11 2.2.2 Hall Effect Outputs ......................11 2.2.3 Reed Switch Outputs ....................12... - Page 4 Quick Start Guide The ‘quick start’ instructions shown below are intended for users who are experienced in the use of flowmeters and who want to quickly set up their new meter with limited functionality, and start using their product right away. The ‘quick start’ instructions will allow the user to set up their meter without the risk of damage, allowing the use of the product while the complete instructions are read in detail at a later date.
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Page 5: Introduction
Aluminium meters are suitable for fuels, oils & most non-aggressive lubricating liquids. Oval Gear flowmeters are available as blind meters with a pulse signal output capable of interfacing to most monitoring and control instrumentation, or the meter can be fitted with instruments such as totalisers, rate totalisers or batch controllers. -
Page 6: Specifications
1.2 Specifications 1.2.1 Small Capacity Models Model Prefix Nominal Size 1/8” (4mm) 1/4” (6mm) 3/8” (8mm) Flow range (USG/hr) 0.26 ~ 9.5 0.5 ~ 27 4 ~ 145 Flow range 1.0 ~ 36 2 ~ 100 15 ~ 550 (L/hr) Accuracy ( liquids ≥... - Page 7 1.2.3 Large Capacity Models Model Prefix 080E 100E Nominal Size 3” (80mm) 3” (80mm) 4” (100m) 4” (100mm) Flow range 10 ~ 200 13 ~ 260 20 ~ 400 40 ~ 660 (USG/min) Flow range 35 ~ 750 50 ~ 1000 75 ~ 1500 150 ~ 2500 (L/min)
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Page 8: Installation
The flowmeter MUST be mounted with the rotor shafts in a horizontal plane. Failure to mount your Oval Gear flowmeter in the correct orientation (as shown in the diagrams below) will cause the weight of the rotors to bear down on the thrust bearings. The short term effects of incorrect mounting orientation will be a loss in accuracy, with long term effects ranging from reduced lifespan to fairly rapid catastrophic damage. -
Page 9: Piping Construction
2.1.2 Piping Construction It is preferred to install the flowmeter upstream of a flow control or shut-off valve, as the back pressure provided by the valve will be beneficial to system accuracy; do not operate a flowmeter directly discharging to atmosphere. Piping should be designed so that the flowmeter is full of liquid at all times;... -
Page 10: Filtration / Straining
2.1.4 Filtration / Straining It is recommended to fit the inlet side of your flowmeter directly to a strainer of appropriate pipe size and mesh size. The minimum mesh size as shown in the specifications section of this manual should be adhered to where ever possible. When metering medium or high viscosity fluids it may be necessary to use a strainer one pipe size larger than the flowmeter nominal size, in order to limit the pressure drop across the strainer basket and maintain strainer efficiency (i.e. -
Page 11: Electrical Installation
2.2 Electrical Installation Two types of output are available from an Oval Gear flowmeter; NPN Hall Effect and Reed Switch (contact closure). Some meter configurations will have one of these outputs, some will have both; a flowmeter may be installed using any of the available outputs. -
Page 12: Reed Switch Outputs
Many secondary flow instruments are fitted with an integral pull-up resistor, but if connecting the Hall Effect output to an electronic device that does not contain an integral pull-up resistor, one MUST be fitted by the installer. The pull-up resistor is connected between the signal terminal and the +VDC terminal;... -
Page 13: Quadrature Pulse Outputs
2.2.4 Quadrature Pulse Outputs The Quadrature Pulse (QP) output is an optional type of output that provides two independent Hall Effect outputs that are electrically 90 degrees out of phase. When installing a meter with Quadrature Pulse output it is important to remember that each output terminal is independent, and as such each will require its own pull-up resistor as described in Section 2.2.2 above. -
Page 14: Wiring Diagrams
2.4 Wiring Diagrams 2.4.1 Standard Pulse Output Board Applicable Models: 006, 008, 015, 025, 040, 050 Applicable Models: 004, 080, 080E, 100, 100E... - Page 15 Notes for Connection of standard Hall/Reed Pulse Output Boards Pull up resistor required for operation of Hall Effect output; 10 kΩ is recommended. See section 2.2.2 for further information. For installations subject to electrical noise; signal filtering can be enabled on the Reed Switch output by wiring the negative terminal of the reed switch (terminal 5) to the GND terminal (terminal 2).
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Page 16: Reed Only Pulse Output Board
2.4.2 Reed Only Pulse Output Board Applicable Models: 004,006,008 Applicable Models: 015,025,040, 050, 080, 080E, 100, 100E... -
Page 17: Reed Only Outputs As Simple Apparatus
Notes for Connection of Reed Only Pulse Output Boards Reed Only pulse output boards are fitted with an on-board current limiting resistor which will limit the total power into the circuit to less than 1W at 24V (dc) (when using both outputs). -
Page 18: Hall Only Output
2.4.4 Hall Only Output Applicable Models: 004 ~ 015 Hall Only, 004 & 006 High Resolution Option Applicable Models: 025, 040, 050, 080, 080E, 100, 100E Notes for Connection of Hall Only Pulse Output Boards Pull up resistor required for operation of Hall Effect output; 10 kΩ is recommended. See section 2.2.2 for further information. -
Page 19: Quadrature Pulse Output
2.4.5 Quadrature Pulse Output Quadrature Pulse Outputs may be wired directly to any flow instruments that accept quadrature signals for signal integrity verification (custody transfer applications) or for bi- directional flow. Quadrature Pulse NPN HALL EFFECT Common -0V Output QUAD Common +V (dc) 90°... -
Page 20: Installations In Hazardous Areas
An Oval Gear flowmeter may be suitable for use in a hazardous area if it has been purchased as Flameproof (EXd), Reed Only (Simple Apparatus), or with an integral certified Intrinsically Safe instrument (EXi). -
Page 21: Conforming Standards
2.7.2 Conforming Standards Flameproof flowmeters carrying ATEX/IECEx labels are certified in accordance with the following standars. Prior to installation or use, review the approval markings on the product and in this manual, as well as the conforming standards below, to confirm it is appropriate for your country/region and site classification. -
Page 22: Temperature Limits For Flameproof Flowmeters
2.7.3 Temperature Limits for Flameproof Flowmeters When operating a Flameproof meter, the process (liquid) temperature must be kept below the maximum limit which is allowed for the temperature class of the installation. This is a critical requirement for explosion safety. For ATEX/IECEx rated equipment refer to the table below to determine the temperature limits for a specific temperature class (e.g. -
Page 23: Earthing Of Flameproof Flowmeters
2.7.5 Earthing of Flameproof Flowmeters A facility for the connection of an earthing conductor is provided inside the terminal cover of all flameproof (EXd) flowmeters, as per below diagrams. The earthing connection is fitted with a 5mm Philips head screw with a locking washer and allows for the fitment of a 5mm ring terminal. -
Page 24: Intrinsically Safe Flowmeters (Ex I)
2.7.6 Intrinsically Safe Flowmeters (EX i) Intrinsically safe flowmeters and instruments are designed and certified for use in zone 1, and zone 2; they function by limiting the power and energy available in the electrical equipment to a level that is low enough that it cannot ignite the hazardous atmosphere. Intrinsic safety installations are carried out in accordance with IEC/EN60079:14 and IEC/EN60079:25. -
Page 25: Commissioning
2.8 Commissioning Once the meter has been mechanically and electrically installed in accordance with this instruction manual, the meter is ready for commissioning. The newly installed meter must NOT be run until the piping is completely flushed of foreign materials. The most common foreign matter that is present in new or modified piping is;... -
Page 26: Fault Finding
2.9 Fault Finding Pulse meters have two distinct sections: the mechanical wetted section housing the rotors and the electrical section housing the pulse output board. Meters fitted with integral instruments have these two sections plus the instrument. The aim of fault finding is to trace the source of the fault to one of these sections. -
Page 27: Troubleshooting Guide
2.10 Troubleshooting Guide Possible Symptom Solution Cause - confirm shielded cable has been used - ground cable shield at instrument end only Output Signal - isolate cable shield at flowmeter end Interference - re-route cabling from high electrical energy sources, or power carrying cables such as valves and pumps/motors. -
Page 28: Maintenance And Repairs
Adhering to the installation instructions is the most important requirement to ensure that your Oval Gear meter provides the maximum level of operational performance. Oval Gear meters are a mechanical device, and so will be subject to some wear and tear over their operational life except under ideal circumstances. -
Page 29: Parts Identification
3.1 Parts Identification For identification of the parts within your Oval Gear meter refer to the following images and tables. Applicable Models: 004, 006, 008, 015 Applicable Models: 025, 040, 050, 050E... - Page 30 Applicable Models: 080, 080E, 100, 100E Applicable Models: 025P...
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Page 31: Flowmeter Disassembly
The pulse output board (6) can now be accessed and removed if necessary by removing the pulse output board screws (7). To access the oval gear rotors, undo the meter body screws (5), and carefully pry the meter body apart avoiding misplacing or damaging the O-ring (3). The rotors (2) can now be removed and inspected. -
Page 32: Re-Assembly Of Flowmeter
3.4 Re-assembly of Flowmeter When re-installing the rotors the magnets MUST be correctly positioned so that they are facing the sensors located in the meter cap, for meters ranging from 004 to 015 sizes the magnets are inserted from the underside of the rotor so will not be visible when the rotors are installed. -
Page 33: Ec Declaration Of Conformity
4. EU Declaration of Conformity We, Trimec Industries Pty Ltd, of Sydney Australia, trading as Great Plains Industries Australia declare under our sole responsibility that the OM-Series flow-meter products are in conformance with the following European directives and European harmonized standards. - Page 34 Notes:...
- Page 35 Notes:...
- Page 36 Flomec Distributor or contact Great Plains Industries, Inc. GPI Australia 5252 East 36 St. North Wichita, 1/16 Atkinson Road KS, USA 67220-3205 Taren Point NSW 2229 Sydney, Australia 888-996-3837 +61 02 9540 4433 www.flomec.net Industrial Oval Gear Meter Instruction Manual 1314009 Rev.1819...
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