Omega EWS-RH User Manual Download Page 13 | Manualshive

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EWS-RH

Relative Humidity/Temperature Transmitter

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Summary of Contents for EWS-RH

Page 1: ...www omega com e mail info omega com User sGuide EWS RH Relative Humidity Temperature Transmitter MADE IN Shop online at ...

Page 2: ... Guyancourt France Tel 33 0 1 61 37 2900 FAX 33 0 1 30 57 5427 Toll Free in France 0800 466 342 e mail sales omega fr Germany Austria Daimlerstrasse 26 D 75392 Deckenpfronn Germany Tel 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 639 7678 e mail info omega de United Kingdom One Omega Drive River Bend Technology Centre ISO 9002 Certified Northbank Irlam Manchester M44 5BD United...

Page 3: ...ity Temperature Transmitter i Page General Description 1 Unpacking 1 Theory of Operation 1 Mounting 3 RH Temperature Calculations 5 Calibration 6 Relative Humidity Calibration Procedure 6 Temperature Calibration Procedure 7 Specifications 8 ...

Page 4: ...r ii Figure Page Figure 1 Mounting Diagram 3 Figure 2 Transmitter Wiring Examples For Current Output 4 Figure 3 Transmitter Wiring Examples For Voltage Output 4 Figure 4 Relative Humidity Calibration Procedure 6 Figure 5 Temperature Calibration Procedure 7 ...

Page 5: ...ve 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 cservice omega com 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 NOTE The carrier will not h...

Page 6: ...ectrical noise interference and the loop can support more than one measuring instrument as long as the maximum loop resistance is not exceeded A typical application utilizing a current loop will normally consist of a power supply the transmitter and a meter recorder or controller to measure the current flow The loop resistance in the sum of the measuring instruments and wire used The maximum allow...

Page 7: ...and condensing moisture such as manufacturing clean rooms computer rooms and laboratory type environments Plastic wall anchors and mounting screws are included for mounting to standard wallboard A conduit box mounting bracket wall plate adapter kit is also available as an option that will allow the transmitter to be mounted to a standard electrical conduit box Order OMEGA Model No EWS MB Figure 1 ...

Page 8: ...xamples For Voltage Output 1 5 Vdc EWS RH RELATIVE HUMIDITY OUTPUT PROCESS PANEL METER POWER SUPPLY 1 6 44 5 4 3 2 EWS RH TEMPERATURE OUTPUT PROCESS PANEL METER POWER SUPPLY 1 6 72 F 5 4 3 2 EWS RH RELATIVE HUMIDITY OUTPUT PROCESS PANEL METER POWER SUPPLY 1 6 44 5 4 3 2 EWS RH TEMPERATURE OUTPUT PROCESS PANEL METER POWER SUPPLY 1 6 72 F 5 4 3 2 ...

Page 9: ...s Output Reading Temperature Measured Vs Output Reading Relative Output Humidity Current mA Voltage Vdc 5 4 8 1 2 10 5 6 1 4 15 6 4 1 6 20 7 2 1 8 25 8 2 30 8 8 2 2 35 9 6 2 4 40 10 4 2 6 45 11 2 2 8 50 12 3 55 12 8 3 2 60 13 6 3 4 65 14 4 3 6 70 15 2 3 8 75 16 4 80 16 8 4 2 85 17 6 4 4 90 18 4 4 6 95 19 2 4 8 Temperature Output C F Current mA Voltage Vdc 15 5 4 1 10 14 5 07 1 27 0 32 7 20 1 80 10...

Page 10: ...ustable If P3 is disturbed the transmitter will need to be returned to the factory for service 1 Remove enclosure cover 2 Connect transmitter as shown in figure below 3 Apply power to transmitter and allow to warm up for 15 min 4 Place sensor in a 20 RH environment and allow to stabilize for 20 min 5 Adjust potentiometer P1 for a output reading of 7 2 mA 6 Place sensor in a 80 RH environment and a...

Page 11: ...ut from transmitter and reference probe to stabilize 6 Observe the reading on the handheld thermometer coming from the reference probe 7 Without touching the unit with your hand adjust potentiometer P4 for a current output of the transmitter that matches the temperature measured by the reference probe Note if you hold the unit with your hand the unit will sense heat from your hand and cause a bad ...

Page 12: ... Capacitor Temperature Specifications Range 5 to 140 F 15 to 60 C Accuracy 25 C In Still Air 1 2 F 0 7 C 25 C 2 5 F 1 4 C across full range In Moving Air 2 5 F 1 4 C 25 C 3 F 1 7 C across full range Note Not recommended for fast moving air applications Repeatability 0 5 F 0 3 C Output 4 20 mA or 1 5 Vdc scaled across range Temp Time Constant for 63 2 response 9 sec in moving air 1 M sec 30 sec in ...

Page 13: ...9 NOTES EWS RH Relative Humidity Temperature Transmitter ...

Page 14: ...10 NOTES EWS RH Relative Humidity Temperature Transmitter ...

Page 15: ...se 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 Should...

Page 16: ...ocity Indicators Turbine Paddlewheel Systems Totalizers Batch Controllers pH CONDUCTIVITY pH Electrodes Testers Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators Pumps Industrial pH Conductivity Equipment DATA ACQUISITION Data Acquisition Engineering Software Communications Based Acquisition Systems Plug in Cards for Apple IBM Compatibles Datalogging Systems Recorders Print...

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