Digihelics

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Digihelics

  1. 1. Digihelic® – Going Once, Going Twice – Thrice!! The materials included in this compilation are for the use of Dwyer Instruments, Inc. potential customers andcurrent employees as a resource only. They may not be reproduced, published, or transmitted electronically forcommercial purposes. Furthermore, the Company’s name, likeness, product names, and logos, included within these compilations may not be used without specific, written prior permission from Dwyer Instruments, Inc. ©Copyright 2011 Dwyer Instruments, Inc.
  2. 2. The Digihelic® FamilyDifferential Pressure Controller Indicate Switch Transmit
  3. 3. Digihelic® Capabilities Selectable Engineering Units Pressure: INWC PSI OZIN FTWC MMHG MMWC KPA MBAR CMWC HPA PA0.1 or +/- 0.1 0.187 2.540 0.249 0.254 0.249 24.910.25 or +/- 0.25 0.144 0.467 6.350 0.623 0.635 0.623 62.280.5 or +/- 0.5 0.289 0.933 12.70 0.125 1.246 1.270 1.246 124.61 or +/- 1 0.578 1.868 25.40 0.249 2.491 2.540 2.491 249.12.5 or +/-2.5 1.445 0.208 4.665 63.50 0.623 6.228 6.350 6.228 622.85 or +/- 5 0.181 2.891 0.417 9.330 127.0 1.246 12.46 12.70 12.46 1246 10 0.361 5.781 0.833 18.66 254.0 2.491 24.91 25.40 24.91 2491 25 0.903 14.45 2.083 46.65 635.0 6.228 62.28 63.50 62.28 6228 50 1.807 28.91 4.165 93.30 1270 12.46 124.6 127.0 124.6 100 3.613 57.81 8.33 186.6 2540 24.91 249.1 254 249.1
  4. 4. Digihelic® Capabilities Selectable Engineering UnitsAir Velocity: FPM, M/SAir Flow: SCFM, M3/HR
  5. 5. Digihelic® CapabilitiesDisplay % of Full Scale Instead of Eng. UnitsRecords Peak & Valley ReadingsTruly Universal Power Supply on DH & DHII 120 VAC; 240 VAC; & 24 VDC (DH3 is 12-24VAC/VDC)K-Factor Selection for Various Flow SensorsDigital Damping of Display & Output
  6. 6. Digihelic® Capabilities4 Levels of SecurityFull Scale Accuracy of 0.5%4-20 mA Output Standard on ALL Models4 & 20 mA Process RescalingModbus® Communication on DH & DHII2 SPDT Control Relay Outputs
  7. 7. Digihelic® Capabilities3 Modes of Operation Single Set Point with Adjustable Dead Band Dual Set Points with Adjustable Dead Bands Single Set Point with Separate Alarm Output LED Indication of Set Point and Alarm Activation
  8. 8. Digihelic® CapabilitiesMode with Single Set Point & Separate AlarmSelectable: High Alarm, Low Alarm, or High/Low Auto or Manual Reset (Via Button on Face) Alarm Inhibit Alarm Time Delay
  9. 9. Comparing Digihelic® Housings DH: 1/8th DIN Panel Mount IP66 Face DHII: IP66 Weatherproof Surface Mount Housing DH3: 3000MR Style Panel Mount Housing with IP66 Face
  10. 10. Comparing Digihelic® Outputs DH & DHII: 2 SPDT 8 Amp Relays DH3: 2 SPDT 1 Amp Relays
  11. 11. Comparing Digihelic® CommunicationDH & DHII: Modbus® Communication Standard DH3: No Modbus® Communication
  12. 12. Comparing Digihelic® Power RequirementsDH & DHII: 120/240 VAC & 24 VDC Power DH3: 12-24 VAC/VDC Power
  13. 13. MarketsAir Handlers / BlowersSemiconPharmaceutical / Health CareDust Collection / Pneumatic ConveyingMini-Environments / GloveboxesSpray boothsIndustrial Ovens/Furnaces
  14. 14. Application – Industrial Blowers & FansPiezo-Ring (aka Flow Ring)Typically Offered As An OptionMaximizes EfficiencyAssists TroubleshootingRead in CFM or DP
  15. 15. Application - SemiconductorSafety ExhaustScrubbers/AbatementGas Delivery SystemsBuzz-words: CVD Gas Delivery Cabinet ALD Wet-processing
  16. 16. Semiconductor DH Feature BenefitsCommunications – reduce overhead byremotely monitoring and adjustment of plant-wide equipmentData Logging – quality assurance, defectcausation, and safety reviewDirect flow indication – is exhaust orprocess optimized?
  17. 17. Application: Gloveboxes & Mini-EnvironmentsGlovebox: sealed container Mini-Environment: no that allows manipulation process manipulation of objects while being in component a different atmosphere.
  18. 18. Application: Gloveboxes & Mini-EnvironmentsHow DH is used: Negative pressurization  protect personnel Positive pressurization  protect product
  19. 19. Application: Bio-Chem Protection Maintain positive pressure in tents/shelters Filter VerificationTotent/shelter Shelter Pressure
  20. 20. Application: Air HandlersOutside air – one of the most crucialelements in maintaining a healthy buildingenvironmentCodes require certain air changes/mixesDigihelic® ensures that outside airflow iscorrectly set
  21. 21. Application: Air HandlersInexpensive air handlers do not typically include complex control packages – the DH fills this void for the OEM or BAS integratorWhy DH? Control VFD w/4-20mA output Remote alarm capability True flow indication for troubleshooting fan or balancing issues
  22. 22. Application: Air HandlersDigihelic® provides air measurement feedback tosetpoint enabled VFDs on return and supply fans.Alarms when flow is too low (fan problem) or toohigh (closed damper).
  23. 23. Application: Environmental ProtectionLarge Scale Power GenerationTemporary/Standby Power
  24. 24. Application: Environmental ProtectionExhaust from power generation containssmall particulates that are particularlyhazardous to humansThese must be filtered and/or “burned-off”
  25. 25. Application: Environmental ProtectionThermal Oxidation: burning pollutants at high temperatureDigihelic® Ensures smooth flow of unclean air to thermaloxidizer Alarms on low/high flows Allows data logging to comply withenvironmental regulations
  26. 26. Application: CleanroomsWhy Upgrade Cleanroom to Digihelic®? Monitor/control/log pressure in cleanroom Compliance Product Quality Issues Clean, easy to read display Pressure – to ensure negative pressure Flow – to ensure minimum air changes
  27. 27. Digihelic™ LinksCommunicationProgram for the Digihelic® For Use with DH or DHII Part Number: DIGIHELIC LINKS
  28. 28. Digihelic™ LinksCommunications ProgramEnables Customer to Set or Change AnyParameter in the Digihelic® from aComputerAn Entire Plant of Digihelics® Can beMonitored/Controlled from A SingleLocationUser Can: Review an Event Log, GraphData, Calibrate Zero & Span
  29. 29. QuestionsTo order a free catalog or for more information contact; Dwyer Instruments, Inc., P.O. Box 373, Michigan City, IN., 46361 Telephone: (800) 872-9141 or (219) 879-8000 Fax: (219) 872-9057 Internet address: www.dwyer-inst.com E-mail: info@dwyer-inst.com

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