Dwyer Instruments Magnesense MS Series Installation And Operating Instructions

The Series MS Magnesense
Transmitter is an extremely versatile transmitter for monitoring
pressure and air velocity. This compact package is loaded with
features such as: field selectable English or metric ranges, field
upgradeable LCD display, adjustable dampening of output sig-
nal (with optional display) and the ability to select a square root
output for use with Pitot tubes and other similar flow sensors.
Along with these features, magnetic sensing technology pro-
vides exceptional long term performance and enables the
Magnesense ® to be the solution for a myriad of pressure and
air flow applications.
INSTALLATION
Mounting:
The transmitter should be mounted on a vertical surface with
the connections directed down to prevent moisture from enter-
ing either the pressure ports or the electrical cable entry. The
diaphragm must be vertical to minimize gravity effects on the
diaphragm.
Mount the transmitter using #8 x 1/2˝ pan head sheet metal
screws in the mounting flanges. Do not over tighten.
Duct Mount:
The transmitter should be mounted away from fans, corners,
heating and cooling coils and other equipment that will effect
the measurement of the pressure.
1. To mount the transmitter, drill a .562 (12.70) diameter hold
into the duct.
2. Insert transmitter probe into the duct.
3. Mark location of three mounting holes on duct using mount-
ing flange as template. Drill holes.
4. Attach mounting flange to duct with (3) #8 x 1/2 pan head
sheet metal screws. Do not overtighten screws.
Electrical Connection:
2-Wire Operation:
CAUTION: DO NOT EXCEED SPECIFIED SUPPLY
VOLTAGE RATINGS. PERMANENT DAMAGE
NOT COVERED BY WARRANTY WILL RESULT.
2-WIRE UNITS ARE NOT DESIGNED FOR AC
VOLTAGE OPERATION.
DWYER INSTRUMENTS, INC.
P.O. Box 373 • Michigan City, IN 46361-0373, U.S.A.
Series MS Magnesense
Specifications - Installation and Operating Instructions
® Differential Pressure
® Differential Pressure Transmitter
21/32
Ø3-7/16
(16/67)
(Ø87.31)
2-41/64
(67.07)
1/2 NPT
2-11/64
(55.17)
2-9/16
(65.09)
8-1/8
(206.38)
SPECIFICATIONS
Service: Air and non-combustible, compatible gases.
Wetted Materials: Consult Factory.
Accuracy: MS-X2X: 0.5˝ w.c. & 0.25˝ w.c. ±1%, 0.1˝ w.c. ±2%.
100 Pa & 50 Pa ±1%, 25 Pa ±2%. MS-X1X: 5˝ & 2˝ ±1%, 1˝ w.c.
±2%. 1250 & 500 Pa ±1%, 250 Pa ±2% (@ standard condi-
tions).
Stability: ±1% F.S./ year.
Temperature Limits: 0 to 150°F (-18 to 66°C).
Pressure Limits: 1 psi maximum, operation; 10 psi, burst.
Power Requirements: 2-wire, 10 to 35 VDC; 3-wire, 17 to
36 VDC or isolated 21.6 to 33 VAC.
Output Signals: 2-wire, 4 to 20 mA; 3-wire, 0 to 10 V.
Response Time: Adjustable 0.5 to 15 sec. time constant.
Provides a 95% response time of 1.5 to 45 seconds.
Zero & Span Adjustments: Digital push button.
Loop Resistance: Current Output: 0-1250 Ohm max. Voltage
Output: min. load resistance 1 k Ohm .
Current Consumption: 40 mA max.
Display (optional): 4 digit LCD.
Electrical Connections: 4-20 mA Units: 2-Wire: European Style
Terminal Block for 16 to 26 AWG; 0-10 V Units: 3-Wire:
European Style Terminal Block 16 to 22 AWG.
Electrical Entry: 1/2˝ NPS Thread.
Accessory: Cable Gland for 5 to 10 mm diameter cable.
Process Connections: 3/16˝ (5 mm) ID tubing. Maximum
OD 9 mm.
Enclosure Rating: NEMA 4X (IP65).
Mounting Orientation: Diaphragm in vertical position.
Weight: 8.0 oz (230 g).
Agency Approvals: CE.
The following standards were used for CE approval:
CENELEC EN 61000-4-2: 2001
CENELEC EN 61000-4-3: 2002
CENELEC EN 61000-4-4: 1995
CENELEC EN 61000-4-5: 2001
CENELEC EN 61000-4-6: 2003
CENELEC EN 61000-4-8: 2001
CENELEC EN 55011: 2003
CENELEC EN 61326: 2002
89/336/EED EMC Directive
Phone: 219/879-8000
Fax: 219/872-9057
Bulletin A-26
21/32
(16/67)
1/2
29/32
(12.70)
(23.02)
57/64
(22.62)
(3) 3/16 (4.76) HOLES
EQUALLY SPACED ON A
4.115 (104.52) BC
Ø35/84 (13.87)
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