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Summary of Contents for Omega HHF144
- Page 1 User’s Gui d e Shop online at omega.com e-mail: info@omega.com For latest product manuals: www.omegamanual.info HHF144 Handheld Rotating Vane Hygro-Thermo Anemometer...
- Page 2 Fax: (203) 359-7700 e-mail: info@omega.com For Other Locations Visit omega.com/worldwide The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves the right to alter specifications without notice.
- Page 3 INTRODUCTION Omega's Model HHF144 digital hygro-thermometer anemometer is a versatile instrument for measuring air velocity, temperature, and humidity in various applications such as HV AC, aerospace development, industrial process airflow, and fluids research. The rugged yet precise air probe can be used in airstreams that have a wide range of humidity, temperature and contaminants without compromising air velocity measurement accuracy.
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Page 4: Section 1 - Specifications
SECTION 1 - SPECIFICATIONS Ranges: 40 to 7800 ft/min (feet per minute) 2.75 Inch Air Probe: 0.2 to 40.00 m/sec (meters per second) l Inch Air Probe: 60 to 6800 ft/min 0.3 to 35.00 m/sec 5.0 to 95.0 %RH Relative Humidity (%RH): °... - Page 5 • Extra extension and/or flexible rods • Custom cable lengths Included: • (1) HHF144 Instrument • (1) Vane-type probe head, choice of 2.75 Inch or 1 Inch Diameter • (1) Combination RH/ temperature probe • (3) Rigid extension rods with handle grip •...
- Page 6 �------� MOUNTING BOSS WI T H 3/8-16 UNC TAPPED HOLE I N CH .750 I N CH DEEP 70MM 02.75 2.7'5 INCH PROBE • • ELECTRI C AL CONNECTOR-------- I N CH -- �- -----i .875 22MM 1.7±.010 I N CH 4.9 I N CH ,__________ 43 MM...
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Page 7: Section 2 - Switch Functions
Section 2 - Switch Functions 1��1 Pressing the ON/OFF key s witches th � instrument O � . � old down '(..;J· the key for 2 seconds to switch the umt OFF. The umt will · automatically power off after 30 minutes without any key presses. To disable auto power-off, hold down the power button during tum-on. - Page 8 Press the TEMPERATURE key to display the current air temperature as measured by the HTP202 Combination Probe. To switch the units � · · between degrees Fahrenheit ( ° F) and degrees Celsius ( C), press the TEMPERATURE key again. Either °C or °F will be displayed along with the reading.
- Page 9 ltii Press the MAX/MIN key to record and display the maximum reading for either temperature, humidity, or air velocity. The maximum reading · · · · display will alternate with the letter "H'' displayed with the sample rate. Press the MAX/MIN key again to record and hold the minimum reading. The minimum reading display will alternate with the letter "L"...
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Page 10: Section 3 - Operational Notes
SECTION 3 - OPERATIONAL NOTES 9009 - Out of Range Error: If the Temp-RH probe is exposed to temperatures or humidity levels outside of its range (see Section 1 - 9009 Specifications), the instrument will display when the instrument is displaying either temperature or relative humidity. -
Page 11: Appendix A - Lcd Display Symbols
APPENDIX A - LCD DISPLAY SYMBOLS LCD DISPLAY RELATIVE DISPLAY BATTERY HUMIDITY HOLD FEET PER MINUTE (It/min) METERS PER SECOND (m/1) DEGREES FAHRENHEIT DEGREES CELCIUS APPENDIX B - BATTERY REPLACEMENT REMOVE BATTERY COVER REPLACE THREE (3) SIZE AA BATTERES AS SHOWN Rev 1.8, 1 0-Jun-2008 Page 10 of24... -
Page 12: Appendix C-Airflow Volume Calculations
APPENDIX C-AIRFLOW VOLUME CALCULATIONS To calculate cubic feet per minute (CFM) from a measured air velocity (FPM), you need the calculated cross-sectional area of the air flow stream: Volume Flow (CFM) = Velocity (FPM) X Area (sq ft). In a rectangular duct this cross sectional area equals the Width times the Height. --r -w---.j W x H=A (cross-sectional area) In a circular duct this cross section area equals the radius squared times... -
Page 13: Appendix D - Analog Outputs (If Equipped)
APPENDIX D - ANALOG OUTPUTS (IF EQUIPPED) If the instrument is equipped with the analog output option, there will be a five pin connector on the bottom of the instrument. Also, an analog output cable will be included with the instrument. This cable will have a five-pin connector on one end and four tinned wires on the other end. - Page 14 ±2% of reading ±1 digit (±11 FPM). Custom Analog Voltage Outputs are also available - contact Omega for details. Analog Output circuit block diagram and connector pin assignment...
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Page 15: Appendix E- Usb Data Output (If Equipped)
APPENDIX E- USB DATA OUTPUT (IF EQUIPPED) If the instrument is equipped with the USS Communications option, there will be a four pin male connector on the bottom of the instrument. Also, a USB cable will be included with the instrument. This cable will have a four pin female connector on one end and a USB Type-A connector on the other end. - Page 16 PRll8.AP 1±1 • Ballffle 1±1,� 1±1 ..Did< crives ! � 1±1 adap1ler 1±1 · � D¥D,(l)-ROM drives i±l§flci,pydlskcmlnller i±l § ff fITAµ.TN'l rontroles 1±1 .$ IEEE 1394 Bus host aintrolers 1±1·• tceiilxwds iii- ft] ' _ · L l'lcdems Mire !Ind other rx,in1in devices !±).
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Page 17: Appendix F- Rs232 Communications (If Equipped)
APPENDIX F- RS232 COMMUNICATIONS (IF EQUIPPED) If the instrument is equipped with the RS232 Communications option, there will be a three pin male connector on the bottom of the instrument. Also, an RS232 cable will be included with the instrument. This cable will have a three pin female connector on one end and a D89 Female connector on the other end. -
Page 18: Appendix G- Viewing And Capturing Data
APPENDIX G- VIEWING AND CAPTURING DATA (IF EQUIPPED WITH EITHER USB OR RS232 OUTPUTS) There are many ways to capture the serial port data from the Instrument. The simplest method is to use a terminal emulator program. Using a terminal emulator allows the serial COM port to be opened, with the above port settings, and real-time data to be viewed from the instrument. - Page 19 On the next window, next to "Connect using," select the COM port you that you are using with your instrument. Click OK. ' ? )( Connect CouMy/nlgion: Ur.i!<ad Siat€S (ii Alea coda: � Cancel __ OK_ · -1· - In the next window, select the port settings as shown below and click OK.
- Page 20 Click on File -+ Properties. You will see the window shown below. Click on the Settings tab and then click on ASCII Setup ... as shown below. Anemometer Propert1e� Funcllon. arrow. and ctr! keys act as @le-olkeys Windows keys Backspace key sends @ C1rl+H O Del O Clrl+H, Space.
- Page 21 Comma-Separated Values (CSV) Measurement Units Same as Units shown on LCD Display Below are examples of the formatted output data for Omega's HHF141- HHF144 Series Instruments (units may be different depending on the units selected on the LCD display): Air,47,FPM Model HHF141: <CR>...
- Page 22 Exporting and Graphing Data Exporting serial port instrument data from the Instrument to a spreadsheet application such as Microsoft Excel or OpenOffice Cale allows the data to graphed or recorded. The simplest way to export the instrument data is to use a terminal emulator program, like Windows HyperTerminal, and either capture the serial data/text to a file (menu selection) or to manually highlight, copy, and then paste the instrument data into an editor such as Windows...
- Page 23 CALIBRATION To maintain your instrument in top working order, we recommend that you send it back to Omega for calibration each year, beginning one year after purchase. Our calibration services include ensuring the instrument performs within its accuracy tolerance, making any necessary adjustments, and inspecting all aspects of the instrument's functionality so that you'll have another year of dependable service.
- Page 24 Notes: Rev 1.8, 1 0-Jun-2008 Page 23 of24...
- Page 25 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.
- Page 26 Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! Shop online at omega.com TEMPERATURE M U Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies M U Wire: Thermocouple, RTD & Thermistor M U Calibrators & Ice Point References M U Recorders, Controllers &...
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