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Section 1 - General Description

The OMEGA

®

Model EWS-BP-A is a low cost, wall mounted barometer/transmitter. A

temperature compensated, solid state pressure sensor measures atmospheric pressure. The
measurement is then converted to an industry standard, user selectable 4-20 mA or 1-5
Vdc output signal scaled across the measurement range.

Section 2 - Unpacking

Remove the packing list and verify that you have received all your equipment. If you have
any questions about the shipment, please call our Customer Service Department at

1-800-622-2378 or 203-359-1660

. On the web you can find us at:

www.omega.com   e-mail: [email protected]

When you receive the shipment, inspect the container and equipment for any signs of
damage. Note any evidence of rough handling in transit. Immediately report any damage
to the shipping agent.

The carrier will not honor any damage claims unless all shipping
material is saved for inspection. After examining and removing
contents, save packing material and carton in the event reshipment is
necessary.

The following items are supplied in the box with your transmitter.

• This Manual, #M-3502

(1 ea.)

• #6 Wall Anchor

(2 ea.)

• #6 Mounting Screw

(2 ea.)

Additional EWS Series Models Available

Model

Description

EWS-TC-(*)

Wall mount Thermocouple Sensor (* = insert type, J, K, T, E)

EWS-RTD

Wall mount RTD Sensor (100Ω Pt., .00385)

EWS-TX

Wall mount Solid-state Temperature Sensor/Transmitter

EWS-RH

Wall mount Relative Humidity/Temperature Transmitter

Recommended Accessories 

Power Supply, OMEGA

®

Part No.: 

PSU-93

Shielded 4-conductor cable, OMEGA Part No.: 

TX4-100

Conduit Box Mounting Kit, OMEGA Part No.: 

EWS-MB

NOTE:

Summary of Contents for EWS-BP-A

Page 1: ...EWS BP A Barometric Pressure Transmitter MADE IN e mail info omega com For latest product manuals omegamanual info Shop online at omega com User sGuide ...

Page 2: ...311899 FAX 420 59 6311114 e mail info omegashop cz France Toll Free 0805 541 038 TEL 01 57 32 48 17 FAX 01 57 32 48 18 e mail esales omega fr Germany Austria Daimlerstrasse 26 D 75392 Deckenpfronn Germany Toll Free 0800 8266342 TEL 49 0 7056 9398 0 FAX 49 0 7056 9398 29 e mail info omega de United Kingdom OMEGA Engineering Ltd ISO 9001 Certified One Omega Drive River Bend Technology Centre Northba...

Page 3: ... Section 2 Unpacking 1 Section 3 Theory of Operation 2 Section 4 Specifications 2 Section 5 Mounting 3 Section 6 Transmitter Wiring Examples 3 Section 7 Barometric Pressure to Analog Output Calculations 4 Section 8 Calibration 4 Section 9 Calibration Procedure 4 i ...

Page 4: ...ii Table of Figures Figure Description Page 1 Model No EWS BP A with EWS MB 3 2 Transmitter Wiring Examples 3 ...

Page 5: ... any signs of damage Note any evidence of rough handling in transit Immediately report any damage to the shipping agent The carrier will not honor any damage claims unless all shipping material is saved for inspection After examining and removing contents save packing material and carton in the event reshipment is necessary The following items are supplied in the box with your transmitter This Man...

Page 6: ... Rmax power supply voltage 8 volts 02 amps For applications that require a voltage output signal the EWS BP A has a built in 250 Ohm shunt resistor that will convert the transmitters output to a 1 5 Vdc signal when wired correctly See Transmitter Wiring Examples in this manual Section 4 Specifications Range 20 8 to 32 in Hg 10 20 to 15 72 psi Accuracy 1 FSO Repeatability 2 FSO Pressure Hysteresis ...

Page 7: ...ng screws are included for mounting A conduit box mounting bracket wall plate adapter kit is available that will allow the transmitter to be mounted to a standard electrical conduit box Section 6 Transmitter Wiring Examples For current output 4 20 mA For voltage output 1 5 Vdc 3 COVER PLATE GROMET ADAPTER PLATE CONDUIT BOX NOT INCLUDED IS SHOWN FOR REFERENCE ONLY MULTIMETER POWER SUPPLY 1 2 3 TB1 ...

Page 8: ...ockwise 2 Connect power to the transmitter as shown in this manual for Voltage Output 1 5 Vdc 3 Allow unit to warm up for 10 minutes 4 Connect the PCL 200 Kit D pressure calibrator the pressure port of the sensor 5 Turn the PCL 200 on to the PSI setting Adjust the hand pump as such to pull a vacuum down to 12 00 PSI 6 Adjust P1 clockwise for an output reading of 1 60 Vdc on the multimeter 7 Adjust...

Page 9: ...otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on humans...

Page 10: ...tors 䡺 Turbine Paddlewheel Systems 䡺 Totalizers Batch Controllers pH CONDUCTIVITY 䡺 pH Electrodes Testers Accessories 䡺 Benchtop Laboratory Meters 䡺 Controllers Calibrators Simulators Pumps 䡺 Industrial pH Conductivity Equipment DATA ACQUISITION 䡺 Data Acquisition Engineering Software 䡺 Communications Based Acquisition Systems 䡺 Plug in Cards for Apple IBM Compatibles 䡺 Data Logging Systems 䡺 Reco...

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