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Series 424/420 Durablock Inclined/Vertical Manometer

Brand: Dwyer Instruments, LLC
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Dwyer SERIES 424/420 Inclined-Vertical Manometer are extremely accurate instruments designed and made especially for precision measurement of low differential pressures in laboratory and test applications.

The Inclined Range Bore has a length of 20" to provide ample multiplication of indicating fluid movement in this critical lower part of the range.
Features
  • 1-1/4" THICK ACRYLIC PLASTIC BODY is a solid block, virtually unbreakable, stable and absolutely free of the danger of distortion.
  • 3/16" BORES, ACCURATE TO ±0.0002" are permanently free of bends or crooks, will not require recalibration because of distortion.
  • Ground Glass Bubble Level sensitive to 115-125 sec./2 MM. is 1-1/2" long x 0.375" diameter and provided with two red lines for easy visibility and alignment.
  • Parallax-free reading for maximum accuracy and consistency is achieved by simply aligning the meniscus with its image reflected in the polished aluminum scale.
  • Selected gage fluid with high wetability characteristics forms a consistent, well shaped meniscus for perfect readability.
  • O-RING SEALED FLUID LEVEL PLUNGER ADJUSTMENT for easy zeroing.
  • Precision built to assure device meets the highest standards.
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Dwyer SERIES 424/420 Inclined-Vertical Manometer are extremely accurate instruments designed and made especially for precision measurement of low differential pressures in laboratory and test applications.

The Inclined Range Bore has a length of 20" to provide ample multiplication of indicating fluid movement in this critical lower part of the range.
Features
  • 1-1/4" THICK ACRYLIC PLASTIC BODY is a solid block, virtually unbreakable, stable and absolutely free of the danger of distortion.
  • 3/16" BORES, ACCURATE TO ±0.0002" are permanently free of bends or crooks, will not require recalibration because of distortion.
  • Ground Glass Bubble Level sensitive to 115-125 sec./2 MM. is 1-1/2" long x 0.375" diameter and provided with two red lines for easy visibility and alignment.
  • Parallax-free reading for maximum accuracy and consistency is achieved by simply aligning the meniscus with its image reflected in the polished aluminum scale.
  • Selected gage fluid with high wetability characteristics forms a consistent, well shaped meniscus for perfect readability.
  • O-RING SEALED FLUID LEVEL PLUNGER ADJUSTMENT for easy zeroing.
  • Precision built to assure device meets the highest standards.
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Specifications

Brand

Accuracy

  • ± 0.25 %

Length

  • Scale: 10-1/8”
  • Scale: 20”
  • Scale: 4-5/8”
  • Scale: 6-1/2”
  • Scale: 9”

NPT Connection

  • 1/8” NPT Male

Pressure Range

  • Inches WC: 0 to 10

Temperature Range

  • 65.5° C (150° F)

Tube Connection

  • 1/8” NPT Tubing
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Typical Applications

  • Low pressure laboratory and test applications
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