Dwyer Instruments Mark II 40 Installation And Operating Instructions

MARK II MODEL 40
Dwyer Mark II - Model 40 Molded
Plastic Manometers are ideally suited
for air velocity and air filter gage applica-
tions at minimal cost. These inclined
manometers provide linear calibration
and excellent resolution throughout their
ranges. They are capable of pressure
measurements
atmospheric, as well as differential pres-
sure measurements.
INSTALLATION
Stationary Applications:
Mark II manometer on a convenient vertical
surface. The installation should not be
exposed to strong chlorine atmospheres or
solvents such as benzene, acetone, carbon
tetrachloride, etc. The instrument is suitable
for total internal pressures of up to 15 psi
(100 kPa) and ambient temperatures of
150°F (65°C). DO NOT EXCEED THESE
LIMITS. At the mounting location selected,
drill two 9/64˝ diameter holes on a vertical
DWYER INSTRUMENTS, INC.
P.O. BOX 373
MICHIGAN CITY, INDIANA 46361,U.S.A
Mark II - Model 40 Molded Plastic Manometers
Installation and Operating Instructions
above and below
Mount the
Ø15/64 [5.95] MOUNTING HOLE
15/64 [5.95] x 13/32 [10.32] MOUNTING SLOT
10-5/8 [269.88]
line spaced 2-31/32˝ apart. Install the
gage with the self-tapping screws provided,
turning the screws down snug but not tight.
Adjust the position of the gage until the bub-
ble is centered in the spirit level. Tighten the
mounting screws, checking to be sure the
instrument remained level, and re-level
as necessary.
SPECIFICATIONS
Accuracy ±3% of full scale.
:
Maximum Internal Working Pressure:
15 psi (100 kPa).
Maximum Working Temperature: 150°F
(65°C).
Scale Length: Approx. 8-1/4˝ (21 cm).
Weight: 10 oz (283.49 g).
Accessories: 3/4 oz. gage oil, mounting
screws, 1/8˝ NPT tubing adapters, wash-
ers, nuts, red and green pointer flags, (2)
4-1/2 ft. lengths 3/16˝ I. D. vinyl tubing.
Phone: 219/879-8000
Fax: 219/872-9057
Bulletin D-59
5-5/16
[134.95]
4-5/8
MAX
2-31/32
[117.48]
[75.41]
25/32
1-1/4
[19.84]
[31.75]
2-1/4 [57.15]
MAX
4 [101.60]
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e-mail: info@dwyer-inst.com