1. Handheld Digital ManometersThe materials included in this compilation are for the use of Dwyer Instruments, Inc. potential customers and current employeesas a resource only. They may not be reproduced, published, or transmitted electronically for commercial purposes.Furthermore, the Companys name, likeness, product names, and logos, included within these compilations may not be usedwithout specific, written prior permission from Dwyer Instruments, Inc. Copyright 2014 Dwyer Instruments, Inc.
2. 476A - InformationLow Cost Single Pressure ManometerInstant selection from up to eightEnglish/Metric unitsFeatures electronic zeroingExtruded Aluminum CaseOperates on a 9V Batteryfor 100Hrs 3. 476A - SpecificationsDisplay: 4 digit LCDTemperature Limits: -17.8 to 60CPressure Accuracy: 1.5% FSPressure Limit: 0.34 BarDesigned especially for the HVAC contractor, the Model476A-0 can be used to set gas supply pressures, verifypressure switch operation, adjust regulators, checkpneumatic systems and computer peripherals. 4. 478A - InformationLow cost differential pressuremanometerInstant selection from up tonine English/Metric unitsStores minimum andmaximum readings since lastpower cycle 5. 478A - SpecificationsDisplay: 4 digit LCDTemperature Limits: -17.8 to 60CPressure Limits: 0.34 BarPressure Accuracy: 1.5% FSOperates on a 9V Batteryfor 100HrsHousing Material: ExtrudedAluminum 6. 478A - SpecificationsThe Series 478A manometer can beused to measure positive, negative,or differential pressures. The unitfeatures selectable units, auto zero,hold and a Min/Max function. Pressthe Hold key to freeze the currentpressure measurement on thedisplay. The 478A manometerincludes a zeroing button to null outany minor pressure differences. 7. 478A - SpecificationsDisplay: 4 digit LCDTemperature Limits: -17.8 to 60CPressure Limits: 0.34 BarPressure Accuracy: 1.5% FSOperates on a 9V Batteryfor 100HrsHousing Material: ExtrudedAluminum 8. 475 -X-FM- InformationIntrinsically Safe DifferentialPressure Manometer ( FactoryMutual approved)Ranges down to 0 to 0.249 KPaSelection of KPa or in w.c. forengineering unitsFeatures electronic zeroMetal barbed fittings 9. 475 - SpecificationsDisplay: 4 Digit LCDTemperature Limits: -17.8 to 60CPressure Limits: 0.74 Bar to 13.79 Bar (rangedependent)Pressure Accuracy: 0.5% FSOperates on a 9V Batteryfor 100HrsHousing Material: Extruded AluminumWeight: 306 g 10. 477AV - InformationFull - featured differential pressuremanometer with integral air velocity/airflow calculationsRanges as low as 0 to 249 PaInstant selection of up to 9 English /Metric unitsStores up to 40 readings in internalmemoryFeatures Backlighting and electroniczeroing 11. 477AV - SpecificationsDisplay: 4 digit LCDTemperature Limits: 0 to 60CPressure Accuracy: 0.5% Full ScaleOperates on a 9V Batteryfor 100HrsInternal Memory: up to 40 readingsWeight: 289 g 12. 477AV PurposePacked with features needed to make pressuremeasurements and recording faster, easier andmore accurate than ever.The memory function enables storage of up to40 readings - perfect for HVAC techniciansmaking Pitot tube traverses of air flow readingsacross a duct.The 477A is also ideal for maintenancepersonnel or technicians that require a highlyaccurate standard to check theirinstrumentation or equipment to ensure properperformance 13. 477B - InformationContains a highly accurate differential pressuresensorAccuracy: 0.1% Full ScaleInstant selection from up to nineEnglish/Metric unitsFeatures a backlight and electronic zeroing 14. 477B - SpecificationsDisplay: 0.42 inch 4 digit LCDTemperature Limits: 0 to 40CPressure Accuracy: 0.1% FSOperates on a 9V Batteryfor 100HrsStores up to 40 readingsWeight: 289 g 15. 490A - InformationWet / wet differential pressuretransmitter with 316L Stainless Steelwetted partsRanges up to 35.5 Bar (max pressureup to 68.95 Bar)Instant selection from up to eightEnglish/Metric unitsVisual and audible overpressure alerts 16. 490A - SpecificationsDisplay: 4 digit LCDTemperature Limits: 0 to 60CPressure Accuracy 0.5% Full ScaleOperates on a 9V Battery for 100HrsInternal Memory: Stores up to 40 readingsNew feature: Series 490 is a field adjustable damping.This allows the user to choose the level of displayaveraging rate corresponding to the fluctuation levelcommon in many applications. 17. Magnehelic New AccessoriesTwo new Magnehelic options-AHU1- Flush mounted bracket installed onMagnehelic-AHU2- Flush mounted bracket installed onMagnehelic with A-481 Installer Kit