Dwyer Instruments SERIES MARK II Catalog Page

Ø15/64 [5.95] MOUNTING HOLE
1-7/16
[28.58]
3-11/16
SERIES MARK II
E
MARK II MOLDED PLASTIC MANOMETERS
3% Accuracy For Stationary And Portable Applications
PRESSURE
1-1/4
[31.75]
[35.53]
4-25/32 [121.44]
5/8
[15.88]
25/32
[19.84]
[93.66]
Ø7/32 [5.56] HOLE
5-29/32 [150.02]
4-23/32 [119.86]
Series Mark II Molded Plastic Manometers are of the inclined and inclined-vertical types. The curved inclined-vertical tube of the Model 25 gage provides higher ranges with more easily read increments at low readings. The Model 25 is excellent for general purpose work. The Model 40 inclined gage provides linear calibration and excellent resolution throughout its range. The Model 40 is ideally suited for air velocity and
above and below atmospheric as well as differential pressure measurements.
Included with each Mark II manometer are two tubing connectors for 1/8˝ pipe or sheet metal ducts, two mounting screws, 1 ounce bottle of indicating uid, red and green pointer ags and complete instructions. The Model 25 also includes 8´ of exible double column plastic tubing. Portable
Manometers, Stationary
operation of the Model 25 is made possible by the use of the optional A-612 portable stand. A short piece of tubing can be slipped over the Model 25 pressure connections
to contain the gage uid in transit.
The Model 40 contains two 4-1/2´ lengths of clear plastic tubing, a plastic swing-out stand and leveling screw for portable operation. It also features convenient rapid shutoff pressure connections and integral overpressure safety traps.
FEATURES/BENEFITS
• Broad ranging in easy to read calibrated increments
• Gages ideally suited for general measurements and specic air applications
• Compact, stationary or portable device, make it a simple to use tool for pressure measurement in OEM or user applications
APPLICATIONS
• Paint booths
• Air velocity measurement
• Air lter gage
OEM SPECIALS
All Dwyer your name or special graphics and scales.
ACCESSORIES Model Description A-612 A-606 A-480 A-489
DWYER INSTRUMENTS, INC. 28
Mark II Model No. 25 inclined-vertical manometer.
(shown with optional A-612 portable stand)
E
O
D
I
V
O
N
L
I
N
Mark II Model No. 40-1 inclined manometer
®
Mark II molded plastic manometers can be supplied in OEM quantities with
Portable stand Air lter kit Plastic static pressure tip 4˝ straight static pressure tip with ange
1-1/8
2-1/4 [57.15] MAX
15/64 [5.95] x 13/32 [10.32] MOUNTING SLOT
10-5/8 [269.88]
25/32 [19.84] 7-13/32 [188.12]
2-31/32
[75.41]
[19.84]
25/32
2-1/4 [57.15]
4-5/8
[117.48]
7/32 X 13/32 [5.56 X 10.32] MOUNTING SLOT
5-5/16
[134.95]
MAX
MAX
1-1/4
[31.75] 4 [101.60]
SPECIFICATIONS INCLINED/VERTICAL Accuracy: ±3% FS. Temperature Limits: 140°F (60°C). Pressure Limits: 10 psi (70 kPa). Weight: 1.04 lb (472 g). Agency Approvals: Meets the technical requirements of EU Directive 2011/65/EU (RoHS II).
INCLINED Accuracy: ±3% FS. Temperature Limits: 150°F (65°C). Pressure Limits: 15 psi (100 kPa). Scale Length: Approx. 8-1/4˝ (21 cm). Weight: 1.23 lb (558 g). Agency Approvals: Meets the technical requirements of EU Directive 2011/65/EU
(RoHS II).
MODEL CHART Model Range Fluid Used Mark II 25 Mark II 26 Mark II 27* Mark II MM-80 Mark II M-700PA Mark II 40-1 Mark II 40-25MM Mark II 40-250PA Mark II 41-60MM Mark II 41-600PA
0-3 in w.c 0-7 in w.c. 0-7000 fpm 0-80 mm w.c.
10-0-700 Pa
.1-0-1.0 in w.c. 0-26 mm w.c.
10-0-250 Pa
0-60 mm w.c.
20-0-600 Pa
Red uid, .826 s.g. Blue oil, 1.91 s.g. Red uid, .826 s.g. Red uid, .826 s.g. Red uid, .826 s.g. Red uid, .826 s.g. Red uid, .826 s.g. Red uid, .826 s.g. Blue oil, 1.91 s.g. Blue oil, 1.91 s.g.
*Require Pitot tube at additional cost.u
Process Tubing Options: See page 455 (Gage Tubing Accessories)
uPitot tube: See pages 186-188 (Test & Data section)
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