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.
STANDARD
ACCESSORIES
Includes two 3/4 oz. bottles of .826 red gage oil (1.91
blue gage oil for models 421-23 and 422-23), rapid shut-off
type "a" connections, two 3 ft lengths of clear plastic
tubing and two 1/8" NPT tubing adapters - two sets for double
column models.
FEATURES
OF THE MODEL 424
- 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 OIL
with high wetability characteristics forms a consistent,
well shaped meniscus for perfect readability.
- O-RING SEALED FLUID LEVEL PLUNGER ADJUSTMENT
for easy zeroing.
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