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FOR 

WARRANTY

 RETURNS, please have 

the following information available BEFORE 

contacting OMEGA:
1.   Purchase Order number under which the 

product was PURCHASED,

2.   Model and serial number of the product under 

warranty, and

3.   Repair instructions and/or specific problems 

relative to the product.

FOR 

NON-WARRANTY

 REPAIRS, consult OMEGA 

for current repair charges. Have the following 

information available BEFORE contacting 

OMEGA:
1.               Purchase  Order  number  to  cover  the  COST   

 of the repair,

2.   Model and serial number of the product, and
3.   Repair instructions and/or specific problems  

relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This 

affords our customers the latest in technology and engineering.
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2015 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photo-

copied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in 

part, without the prior written consent of OMEGA ENGINEERING, INC.

WARRANTY/ DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship 

for a period of 

13 months

 from date of purchase. OMEGA’s Warranty adds an additional one (1) 

month grace period to the normal 

one (1) year product warranty

 to cover handling and shipping 

time. This ensures that OMEGA’s customers receive maximum coverage on each product. 
If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer 

Service Department will issue an Authorized Return (AR) number immediately upon phone or 

written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired 

or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action 

of the purchaser, including but not limited to mishandling, improper interfacing, operation outside 

of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the 

unit shows evidence of having been tampered with or shows evidence of having been damaged 

as a result of excessive corrosion; or current, heat, moisture or vibration; improper specification; 

misapplication; misuse or other operating conditions outside of OMEGA’s control. Components in 

which wear is not warranted, include but are not limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However, 

OMEGA neither assumes responsibility for any omissions or errors nor assumes 

liability for any damages that result from the use of its products in accordance with 

information provided by OMEGA, either verbal or written. OMEGA warrants only that 

the parts manufactured by the company will be as specified and free of defects. OMEGA 

MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, 

EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES 

INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 

PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of 

purchaser set forth herein are exclusive, and the total liability of OMEGA with respect 

to this order, whether based on contract, warranty, negligence, indemnification, strict 

liability or 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. Should any Product(s) be used in or with any 

nuclear installation or activity, medical application, used on humans, or misused in any way, 

OMEGA assumes no responsibility as set forth in our basic WARRANTY/ DISCLAIMER language, 

and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or 

damage whatsoever arising out of the use of the Product(s) in such a manner.

RETURN REQUESTS/ INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. 

BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED 

RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO 

AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the outside 

of the return package and on any correspondence. The purchaser is responsible for shipping charges, 

freight, insurance and proper packaging to prevent breakage in transit.  

Summary of Contents for RH650

Page 1: ...RH650 9 In 1 Thermo Hygrometer Moisture Meter e mail info omega com For latest product manuals omegamanual info Shop online at omega comSM User sGuide...

Page 2: ...notice Servicing North America U S A Omega Engineering Inc One Omega Drive P O Box 4047 Stamford CT 06907 0047 USA Toll Free 1 800 826 6342 USA Canada only Customer Service 1 800 622 2378 USA Canada o...

Page 3: ...9 IN 1 THERMO HYGROMETER MOISTURE METER USER S MANUAL RH650 Please read this manual carefully and thoroughly before using this product...

Page 4: ...restoration contractors HVAC R system installers and technicians facility maintenance professionals and electronics manufacturers The first three groups will exploit the meter s ability to measure di...

Page 5: ...terial s moisture level and its dielectric constant and therefore its capacitance 2 The so called fringing field effect the slight spreading of the electric field produced by current flowing between t...

Page 6: ...ecalls 20 pairs of readings Settable high and low alarms for RH relative moisture level and absolute moisture level Backlit LCD with 3 digit primary readout 4 digit secondary readout Zero reset in pin...

Page 7: ...ameters Ambient Temperature Dew Point F or C Absolute Humidity mg L or g m3 Mixing Ratio GPP or g kg Barometric Pressure and Vapor Pressure mBAR or KPa In memory mode used to clear stored readings Als...

Page 8: ...mode indicator Pinless moisture measurement mode indicator Alarm limit indicators Zero reset indicator Pin pinless moisture level indicator Maximum minimum value indicators Data hold indicator Primary...

Page 9: ...conds The shutdown will be announced by two short beeps After powering off the meter replace the sensor protection cap if you do not expect to use the instrument within the next few hours By default t...

Page 10: ...never any button is pressed It will remain on for 30 seconds and then extinguish to extend battery life Holding readings Briefly pressing the ON OFF HOLD button freezes both the primary and secondary...

Page 11: ...e DN button to recall them in reverse order Pressing the UP button when the last stored pair of readings is displayed returns the Record number indicator to 01 corresponding to the first pair of readi...

Page 12: ...OW setpoint as explained earlier in the paragraph on HIGH setpoints Alternatively you can leave the LOW setpoint unchanged Whether or not you make a change your next step must be to press the STORE EN...

Page 13: ...aterial In MOIST EXT mode the meter uses the included pin type probe to measure the conductivity of a material as a proxy for its moisture content In both moisture level measurement modes the RH650 s...

Page 14: ...0 each time you re enter that mode from another mode CHECKING CALIBRATION Although you cannot calibrate the RH650 yourself you can check the meter s calibration periodically to assure yourself of the...

Page 15: ...to 99 9 Pinless Moisture Measurement Depth 0 75 in 19mm Dew Point Range 76 to 140 F 60 to 60 C Atmospheric Pressure Range 30 to 120 kPA Vapor Pressure Range 0 to 20 0 kPA Sampling Rate 2X sec Memory C...

Page 16: ...disassemble the unit Opening the case voids the warranty To avoid fouling the humidity temperature sensor do not operate the unit in very dusty environments Replace the dust cap protecting the sensor...

Page 17: ...per specification misapplication misuse or other operating conditions outside of OMEGA s control Components in which wear is not warranted include but are not limited to contact points fuses and triac...

Page 18: ...bine Paddlewheel Systems M U Totalizers Batch Controllers pH CONDUCTIVITY M U pH Electrodes Testers Accessories M U Benchtop Laboratory Meters M U Controllers Calibrators Simulators Pumps M U Industri...

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