Dwyer 421-23 424 Inclined/Vertical Manometer

Dwyer, 421-23, Series 424 Durablock Inclined/Vertical Manometer, 0-2.2" x 2.4-23" w.c.

Accuracy to ±0.25%

Dwyer® No. 424 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 ± .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 .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.