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Instruction Manual September 2003
milltronics
MILLFLO

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   Summary of Contents for Siemens Milltronics MILLFLO

  • Page 1 Instruction Manual September 2003 milltronics MILLFLO...
  • Page 2 Contact SMPI Technical Publications at the following address: Technical Publications Siemens Milltronics Process Instruments Inc. 1954 Technology Drive, P.O. Box 4225 Peterborough, Ontario, Canada, K9J 7B1 Email: techpubs@siemens-milltronics.com For the library of SMPI instruction manuals, visit our Web site: www.siemens-milltronics.com © Siemens Milltronics Process Instruments Inc. 2003...
  • Page 3: Table Of Contents

    Table of Contents Milltronics Millflo Solids Flowmeter ................1 The Manual .......................... 1 Specifications ........................2 Operation ..........................4 Components ............................4 Horizontal Sensing Plate ......................4 Negative Displacement .......................5 Installation ........................... 6 Preparation .............................6 Welding ............................6 Load Cell Handling ........................6 Disassembly ............................7 Installation of Shipping Stop ......................7...
  • Page 5: Milltronics Millflo Solids Flowmeter

    Milltronics Millflo Solids Flowmeter The Milltronics Millflo solids flowmeter is a low to medium-capacity flowmeter for various product sizes, densities, and fluidities in restricted spaces. This low-cost compact unit improves processing, increases operating efficiency, and helps provide significant cost savings.
  • Page 6: Specifications

    • 0 to 65 °C (32 to 150 °F) internally compensated • output: • 2 mV / V excitation at rated load cell capacity Approvals • CE Weight • see page 3 Page 2 Milltronics Millflo – INSTRUCTION MANUAL 7ML19985CS01...
  • Page 7 0 - 250 STPH 136 kg (300 12" 13 mm (1/2”) 100 lb. 0 - 90 t/h 0 - 230 t/h lb.) Maximum flowrates are based on material densities of 1.6 t /m (100 lb./ft 7ML19985CS01 Milltronics Millflo – INSTRUCTION MANUAL Page 3...
  • Page 8: Operation

    (force) The displacement of the load cell is sensed by its strain vertical gauges. These convert the excitation signal from the electronic integrator to produce a signal proportional to material flow. Page 4 Milltronics Millflo – INSTRUCTION MANUAL 7ML19985CS01...
  • Page 9: Negative Displacement

    -20 mV when the the output signal from the load cell will be load cell is forced to travel in the negative approximately -5 to 0 mV DC. direction. negative normal gap displacement 7ML19985CS01 Milltronics Millflo – INSTRUCTION MANUAL Page 5...
  • Page 10: Installation

    Preparation Prepare the site in accordance to the Siemens Milltronics drawing(s) provided. If no drawings were provided or if there is confusion or doubt as to the Milltronics Millflo’s installation, please consult your Siemens Milltronics representative. When unpacking the Millflo, avoid subjecting the unit to mechanical shock. Excessive mechanical shock can cause damage to the housing or load cell/sensing plate assembly.
  • Page 11: Disassembly

    Turn the two opposing sensing plate locking nuts toward the sensing plate, maintaining the sensing plate in its static position. Tighten nuts to secure sensing plate. 7ML19985CS01 Milltronics Millflo – INSTRUCTION MANUAL Page 7...
  • Page 12: Installation

    Exercise caution while handling the load cell/sensing plate Load Cell Handling assembly. Refer to the diagrams in the section on page 6. Wire the unit in accordance with Siemens Milltronics supplied connection diagrams or as described in the integrator instruction manual. (3) infeed pipe mounting hardware...
  • Page 14: Millflo Wiring

    Millflo loadcell customer cable to integrator, single load cell sensing or non-sensing configuration. Refer to integrator instruction manual shield green black white (+Sig.) (-EX) (+ EX.) (-SIG.) Page 10 Milltronics Millflo – INSTRUCTION MANUAL 7ML19985CS01...
  • Page 15: Calibration

    Test Rate may be factored to obtain an optimum value which should lie in the range of 50% to 100% of the Design Rate. The Test Rate should never exceed 100% of the Design Rate. 7ML19985CS01 Milltronics Millflo – INSTRUCTION MANUAL Page 11...
  • Page 16 Following that, a recalibration of the zero and span can be performed using the old test weight and test rate. New material tests will not be required. Page 12 Milltronics Millflo – INSTRUCTION MANUAL 7ML19985CS01...
  • Page 17: Applications

    A larger loadcell compensates for slight to moderate material pulsing at greater than 1 pulse per second. If heavily pulsing feeder discharges at less than 1 pulse per second, consult Siemens Milltronics or your local distributor. • Use a flowmeter discharge chute suitable so that material cannot backup into the flowmeter housing.
  • Page 18 • A reverse flowguide transition (and/or material baffle discharge baffle) is often required for variable belt speeds or constant speeds in excess of 1 m/s (200 feet/minute). Page 14 Milltronics Millflo – INSTRUCTION MANUAL 7ML19985CS01...
  • Page 19: Flowmeter In-feed Chutes

    • This transition is acceptable for a low and constant velocity feeder. • To use a forward flowguide transition for a high or variable speed feeder application, install a baffle plate. 7ML19985CS01 Milltronics Millflo – INSTRUCTION MANUAL Page 15...
  • Page 20 • Deadboxes conditions: • high feeder discharge velocity • variable discharge • abrasive material • Locate deadboxes where long-fall chute angles change. Page 16 Milltronics Millflo – INSTRUCTION MANUAL 7ML19985CS01...
  • Page 21 Refer to the following chart to ensure the flowguide capacity is suitable. Note: If the material bulk density and flowrate is near a Millflo infeed diameter upper limit, choose the next largest diameter. 7ML19985CS01 Milltronics Millflo – INSTRUCTION MANUAL Page 17...
  • Page 22: Maintenance

    Check for material bridging across the load cell or sensing plate to the housing which can restrict the free movement of either component. Do not strike the flowmeter, its components, or adjacent piping to dislodge material. Check for wearing of the sensing plate. If wear is excessive contact your Siemens Milltronics representative. Spare Parts The following are the recommended spare parts.
  • Page 24 Siemens Milltronics Process Instruments Inc. Siemens Milltronics Process Instruments Inc. 2003 1954Technology Drive, P .O. Box 4225 Subject to change without prior notice Peterborough, ON, Canada K9J 7B1 Rev. 1.0 Tel: (705) 745-2431 Fax: (705) 741-0466 *7ml19985CS01* Email: techpubs@siemens-milltronics.com...

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