Hot Wire Anemometer/Thermometer HHF
Contents
1. wm CE gers Guide Shop online at omega com SEOMEGA omega com e mail info omega com For latest product manuals omegamanual info MADE IN TAIWAN HHF SD 1 Hot Wire Anemometer Thermometer with Data Logging SD Card omega con SEOMEGA OMEGAnet Online Service Internet e mail omega com info omega com U S A ISO 9001 Certified Canada Servicing North America Omega Engineering Inc One Omega Drive P O Box 4047 Stamford CT 06907 0047 USA Toll Free 1 800 826 6342 TEL 203 359 1660 FAX 203 359 7700 e mail info omega com 976 Bergar Laval Quebec H7L 5A1 Canada Toll Free 1 800 826 6342 TEL 514 856 6928 FAX 514 856 6886 e mail info omega ca For immediate technical or application assistance U S A and Canada Sales Service 1 800 826 6342 1 800 TC OMEGA Mexico Latin America Benelux Czech Republic France Germany Austria United Kingdom ISO 9001 Certified Customer Service 1 800 622 2378 1 800 622 BEST Engineering Service 1 800 872 9436 1 800 USA WHEN En Espa ol 001 203 359 7803 FAX 001 203 359 7807 info omega com mx e mail espanol omega com Servicing Europe Managed by the United Kingdom Office Toll Free 0800 099 3344 TEL 31 20 347 21 21 FAX 31 20 643 46 43 e mail sales omegaeng nl Frystatska 184 733 01 Karvin Czech Republic Toll Free 0800 1 66342 TEL 420 59 6311899 FAX2. PoFF Press the SET Y button until the desired automatic power off management scheme yES for enable no for disable is displayed Press the REC ENTER button to store the selection If enabled the power off function shuts off the HHF SD1 after a period of inactivity of ten minutes 6 Enable or disable the beeper Once the auto power off function has been enabled or disabled the display will show the word yES over the word bEEP Press the SET V button until the desired setting yES or no is displayed and then press the REC ENTER button to store the selection as the default 7 Select the thermocouple type Once the beep sound has been enabled or disabled the lower part of the display will show the term tYPE Press the SET V or LOGGER button until your thermocouple s type K or J appears on the display Then press the REC ENTER button to store the selection 8 Select the temperature unit Once the thermocouple type has been selected and stored the lower part of the display will show the term t CF Press the SET V or LOGGER V button until the unit you prefer F for Fahrenheit C for Celsius is displayed Then press the REC ENTER button to store the selection as the default 9 Set the datalogging sampling time Once the default temperature unit has been set and stored the display will show a value above the letters SP t Press the SET V or LOGGER _ button to decreas
3. 420 59 6311114 e mail info omegashop cz Managed by the United Kingdom Office Toll Free 0800 466 342 TEL 33 0 161 37 29 00 FAX 33 0 130 57 54 27 e mail sales omega fr Daimlerstrasse 26 D 75392 Deckenpfronn Germany Toll Free 0800 6397678 TEL 49 0 7056 9398 0 FAX 49 0 7056 9398 29 e mail info omega de OMEGA Engineering Ltd One Omega Drive River Bend Technology Centre Northbank Irlam Manchester M44 5BD United Kingdom Toll Free 0800 488 488 TEL 44 0 161 777 6611 FAX 44 0 161 777 6622 e mail sales omega co uk It is the policy of OMEGA Engineering Inc to comply with all worldwide safety and EMC EMI regulations that apply OMEGA is constantly pursuing certification of its products to the European New Approach Directives OMEGA will add the CE mark to every appropriate device upon certification 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 WARNING These products are not designed for use in and should not be used for human applications TABLE OF CONTENTS ig AAA A aad ae witlew Sele ote aa eed eid yw amet ides 2 Key Features sys ceed i del ta A pew veda ea eed eae a ees 3 Operating MSticuons 0 uste ra e T n 3 Whats m the AAA ee oh oat A E a ee 3 SEUD aoa oper he hie aca ee O n ae a 5 Normal Operation e aes De e a Ok a e a de O ola AA LO O 7 Holding and S
4. Settable parameters Storable recallable readings SD card capacity Operating temperature Operating relative humidity Power supply Power consumption Dimensions of instrument Weight of instrument Dimensions of probe Custom one chip LSI device Liquid crystal with green backlight 2 05 x 1 5 in 52 x 38mm Air speed temperature For temperature 32 to 122 F 0 to 50 C for air speed 0 2 to 25 m sec 0 7 to 172 km hr 0 5 to 44 7 mph 0 4 to 38 8 knots 40 to 3940 ft min For air speed 5 0 1 m sec 5 0 3 km hr 5 mph 5 0 2 knots 5 20 ft min for temperature 1 5 F 0 8 C For air speed 0 01 m s 0 2 to 5 0 m s 0 1 m s 5 1 to 25 0 m s 0 01 km hr 0 7 to 18 km hr 0 1 km hr 18 to 72 km hr 0 01 mph 0 5 to 11 20 mph 0 1 mph 11 2 to 44 7 mph 0 01 knot 0 4 to 9 7 knots 0 1 knot 9 7 to 38 8 knots 1 ft min 40 to 3940 ft min for temperature 0 1 F or C 0 1 2 5 10 30 60 120 300 600 1800 or 3600 seconds 0 seconds to 1 hour Date time auto power off beep sound sampling time decimal point or comma decimal division temperature unit air speed unit optional thermocouple type K or J Maximum minimum 1GB to 16 GB 32 to 122 F 0 to 50 C 0 to 85 Six Alkaline AA batteries or optional 9 VDC AC adapter 30 mADC normal operation with backlight off and SD card not saving data 50 mADC with backlight on and card saving data 7 99 x 2
5. directly or via a USB card reader The data logs are stored on the card as files with the xls extension which can be opened by Microsoft s Excel application The HHF SD1 has a backlit 2 5 in diagonal display and is powered by six AA Alkaline batteries or an optional 9 VDC AC adapter KEY FEATURES Includes telescoping air speed temperature probe e Displays air wind speed in meters second feet per minute kilometers hr knots nautical miles per hour or miles per hour e Measures air speeds down to 0 2 m s with 0 01 m s resolution down to 40 ft sec with 1 ft min resolution Displays temperature in F or C Big 2 5 in diagonal front panel green backlit LCD is easy to read Displays maximum and minimum readings and holds any reading Automatically logs measurements at sampling time settable from one second to one hour Also supports manual datalogging and changing of SD card storage location Outputs Excel compatible data logs Accepts SD memory cards of up to 16 GB capacity Auto power off function Powered by six AA batteries or optional 9V AC DC adapter OPERATING INSTRUCTIONS WHAT S IN THE CASE The HHF SD1 comes fully assembled in a hard carrying case along with a telescoping air speed temperature probe a2 GB SD memory card and this user s manual Optional accessories available from Omega include e Type K and Type J thermocouples e A9VDC adapter for a 110V power supply See the Optional Accessories
6. 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 FOR WARRANTY RETURNS please have the FOR NON WARRANTY REPAIRS consult OMEGA following information available BEFORE for current repair charges Have the following contacting OMEGA information available BEFORE contacting OMEGA 1 Purchase Order number under which the product 1 Purchase Order number to cover the COST was PURCHASED of the repair 2 Model and serial number of the product under 2 Model and serial number of the product and warranty and 3 Repair instructions and or specific problems 3 Repair instructions and or specific problems relative to the product 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 2011 OMEGA ENGINEERING INC All rights reserved This
7. 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
8. 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 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 OMEGASs 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
9. 99 x 1 50 in 203 x 76 x 38mm 1 13 Ib 515g 0 4724 in diameter x 11 02 in collapsed 37 in extended 12mm x 280mm 940mm 10 MAINTENANCE amp TROUBLESHOOTING TIPS Keep the telescoping probe clean and move the sensor cover at its tip to the up position when not using the probe Store the probe in the carrying case when you are not using the anemometer a When the icon gt appears in the left corner of the display it s time to replace the six AA batteries that power the instrument although measurements will remain valid for several hours after the low battery indicator first appears Replacing the batteries requires removing the two screws that hold the battery compartment cover in place as explained in Step 1 of the Setup procedure After inserting fresh batteries in the correct orientation tighten the screws to secure the cover If the meter freezes like a computer and buttons become unresponsive try resetting the instrument by pushing the RESET button on its right side callout 1 11 of Fig 1 with the end of a paper clip Remove the batteries when storing the meter for an extended period of time Do not drop or disassemble the meter or immerse it in water OPTIONAL ACCESSORIES Optional accessories available from General Tools amp Instruments include e Type K and Type J thermocouples e 9VDC adapter for a 110V power supply 11 NOTES WARRANTY DISCLAIMER OMEGA ENGINEERING INC warrants
10. Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL 14 Metering amp Control Instrumentation LF Refractometers 14 Pumps amp Tubing lA Air Soil amp Water Monitors LA Industrial Water amp Wastewater Treatment 14 pH Conductivity amp Dissolved Oxygen Instruments M5007 0211
11. document may not be copied photocopied 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 Where Do I Find Everything Need for Process Measurement and Control OMEGA Of Course Shop online at omega com TEMPERATURE Zd Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies 4 Wire Thermocouple RTD amp Thermistor 4 Calibrators amp Ice Point References 4 Recorders Controllers amp Process Monitors LF Infrared Pyrometers PRESSURE STRAIN AND FORCE LA Transducers amp Strain Gages lA Load Cells amp Pressure Gages 4 Displacement Transducers A Instrumentation amp Accessories FLOW LEVEL 4 Rotameters Gas Mass Flowmeters amp Flow Computers 4 Air Velocity Indicators 14 Turbine Paddlewheel Systems 4 Totalizers amp Batch Controllers pH CONDUCTIVITY LA pH Electrodes Testers amp Accessories Lf Benchtop Laboratory Meters lA Controllers Calibrators Simulators amp Pumps A Industrial pH amp Conductivity Equipment DATA ACQUISITION 4 Data Acquisition amp Engineering Software Lf Communications Based Acquisition Systems 4 Plug in Cards for Apple IBM amp Compatibles 14 Data Logging Systems lA Recorders Printers amp Plotters HEATERS 14 Heating Cable 14 Cartridge amp Strip Heaters 14 Immersion amp Band Heaters LA Flexible Heaters A
12. e or increase the value until the desired sampling time appears above SP t The options are 0 1 2 5 10 30 60 120 300 600 1800 and 3600 seconds 0 seconds to 1 hour 10 Format the SD card Once the sampling time has been set and stored the term Sd F will appear in the lower half of the display Press the REC ENTER button Pressing the REC ENTER button causes the word no or yES to appear over the term Sd F Press the V button to make a selection Choose yES whenever a new SD card is being used or when a used card is being repurposed from use with another SD card instrument or a camera for example and all data on it is to be erased Choose no to preserve any data on a card previously used with this instrument If you choose yES after you press the REC ENTER button the instrument will prompt you to confirm that decision by displaying the term Ent below yES and sounding three beeps To confirm that you want to begin the erasure formatting procedure press the REC ENTER button Ent will then flash several times and the instrument will sound another three beeps to confirm that the SD card has been erased and formatted Once the SD card has been set up the display will then either return to the first of the eight steps in the setup sequence setting the current date and time or show the term ESC If ESC appears press the POWER ESC button to exit the setup proc
13. edure and enter normal operating mode NORMAL OPERATION 1 To prepare to make measurements power on the HHF SD1 and make sure an SD card is firmly seated in the socket on the bottom of the instrument The meter can make and display two kinds of measurements e Air speed and temperature simultaneously e Surface temperature as measured by an optional Type K or Type J thermocouple 2 To select the measurement mode use the FUNC HOLD NEXT button Pressing the button repeatedly toggles between the two modes When the FUNC HOLD NEXT button is released the selected mode becomes the default until the button is pressed again By default the HHF SD1 uses Celsius units for temperature measurements If you wish to make Fahrenheit units the default press the SET V button to enter the setup procedure and perform Step 8 3 To measure air velocity and temperature simultaneously a b c Seat the telescoping probe plug callout 1 17 of Fig 1 in its socket callout 1 7 on the top of the instrument Press the FUNC HOLD NEXT button until the display shows the term Air Holding the probe by its handle slide the sensor cover callout 1 19 on its end down to expose the sensor Do not touch the sensor with tools or your fingers the thin hot wire and thermistor inside it are easily damaged Extend the probe to a convenient length Rotate the probe until the mark on top of the sensor head faces the wind or the flow of air whose sp
14. eed temperature you wish to measure The upper part of the display will show the air speed while the lower part will show the temperature as F or C To change the unit of air speed use the REC ENTER button which has the word Unit stenciled below it Repeated presses of the button cycle through the five options for air speed units m s meters second fpm feet per minute km h kilometers hr knots nautical miles per hour and mph miles per hour Release the REC ENTER button when the unit you wish to use appears making it the default until changed 4 To measure surface temperature using a thermocouple make sure the multi function probe is not in its socket Plug an optional Type K or Type J thermocouple into its dedicated socket callout 1 8 of Fig 1 Then press the FUNC HOLD NEXT button until the display shows the term tP Touch the wire end of the thermocouple to the surface whose temperature you wish to measure The display will show its temperature as F or C By default the HHF SD1 is configured for a Type K thermocouple To use a Type J thermocouple press the SET_ button to enter the setup procedure and perform Step 7 Whenever the instrument is operating in measurement mode you can turn off the backlight which is on by default by briefly pressing but not holding the POWER ESC button To reactivate the backlight briefly press the button again Whenever the HHF SD1 is
15. een set up to use press the LOGGER A button which has the words Sampling check stenciled below it once To change the sampling time perform Step 9 of the setup procedure 1 To start automatic datalogging press the REC ENTER button once The top line of the display will then show the term REC Pressing the LOGGER A button at this point will make REC flash and add the flashing term LOGGER at the top right of the display This indicates that the instrument is currently storing measured values and their time stamps in memory To pause automatic datalogging press the LOGGER A button once this action makes the flashing term LOGGER disappear from the top right of the display and changes the term REC from flashing to constant Pressing the LOGGER A button again resumes automatic datalogging To end automatic datalogging press the REC ENTER button and hold it for at least two seconds This action causes the REC message to disappear To log data manually set the sampling time to zero using the procedure detailed earlier Then press the REC ENTER button once The display will show the term REC on the top line a value in the middle and below it the letter P on the left and a number from 1 to 99 on the same line to the right The number indicates the position on the SD card that will be used to store manually logged data Now press the LOGGER A button This will cause the beeper to sound and the te
16. in either measurement mode you also can check the current date and time by briefly pressing the SET V button which has the words Time check stenciled below it Doing so causes both values to appear briefly at the lower left of the display HOLDING AND STORING MEASUREMENTS 1 To hold a measured value press the FUNC HOLD NEXT button during the measurement Doing so will cause the word HOLD to appear at the top of the display Pressing the FUNC HOLD NEXT button again releases the hold To record and recall readings press the REC ENTER button while making measurements This will make the term REC appear at the top of the display Pressing the REC ENTER button again briefly will make the term MAX appear to the right of REC and switch the display to the maximum value stored in memory during the last recording session Pressing the REC ENTER button again briefly will make the term MIN appear to the right of REC and switch the display to the minimum value stored during the last session To exit recording mode press the REC ENTER button and hold it for at least three seconds until the term REC disappears from the top line of the display The display will then revert to showing the current reading AUTOMATIC VS MANUAL DATALOGGING The HHF SD1 can automatically log data at a user selected sampling period from 1 second 3 600 seconds one hour To view the sampling time that the instrument has b
17. nly screen and a graphics only screen A gt Gestaci n A A B c D E Fo D I J 1 Place Date Time Value Unit Value Unit 2 1 2009 68 15 12 16 0 8 mis 28 8 AMTemp C 3 2 2009 68 15 12 17 2 2 m S 28 8 AMTemp C 4 3 2009 68 15 12 18 2 1 m 28 8 AMTemp C 5 4 20096 8 15 12 19 2 9 mis 28 9 AMTemp C 6 5 2009 68 15 12 20 2 9 mis 28 8 AMTemp C 6 2009 6 8 15 12 21 2 mS 23 8 AMTemp C 8 Y 200968 15 12 22 3 6 m s 28 8 AMTemp C Y 8 2009 0 8 15 12 23 2 9 mis 28 8 AMTemp C 10 9 2009 0 8 15 12 24 2 9 mis 28 8 AMTemp C ll 0 2009 6 8 15 12 25 2 9 mis 28 8 AMTemp C 12 1 2009 6 8 15 12 26 2 9 mis 23 9 AMTemp U 13 Z 2009 6 8 15 12 27 3 mis 28 8 AMTemp C 14 3 200968 15 12 28 3 1 m s 28 8 AMTemp U 15 4 2009 6 8 15 12 29 3 1 mS 28 7 AMTemp C 16 15 2009 6 8 15 12 30 5 9 m s 29 1 AMTemp C 17 6 2009 68 15 12 31 4 2 mis 29 AMTemp C 18 7 200968 15 12 32 3 2 m s 28 9 AMTemp C 19 8 2009 6 8 15 12 33 2 6 mis 28 6 AMTemp C 20 9 20096 15 12 34 3 1 m 5 28 7 AMTemp C 21 20 2009 6 8 15 12 35 3 m s 28 7 AMTemp C 22 21 2009 68 15 12 36 3 129 26 9 AMTemp C 23 22 2009 68 15 12 37 3 1 1125 25 9 AMTewp C 2009 6 8 15 12 38 2 3 1 9 26 9 AMTemp C 24 23 Fig 2 Typical Excel data only screen AM m s Fig 3 Typical Excel graphics only screen SPECIFICATIONS Embedded microcontroller Display type Display size Parameters measured Measurement range Measurement accuracy 0 2 Measurement resolution Sampling time options
18. rews holding it in place callout 1 14 Then install six AA batteries in the correct orientation using the polarity marks on the inside of the compartment as a guide Replace the cover by replacing the two Screws 2 Install an SD card To prepare for setup also install an optional SD memory card of 1 GB to 16 GB capacity in the socket on the bottom of the instrument callout 1 9 When installing the card make sure its gold contacts are facing front and push the card into the socket until you hear a click To remove the card push it in until you hear a click and the card pops out Now power on the instrument by pressing the POWER ESC button callout 1 2 to generate a short beep To power off the HHF SD1 press the POWER ESC button and hold it until the instrument responds with a long beep When the instrument powers on a series of transient startup screens will briefly appear Once the display has stabilized perform the following eight setup steps in the order presented 3 Set the date and time Press the SET V button callout 1 5 and hold it for at least five seconds until the word dAtE appears in the center of the display along with the flashing value 00 00 00 at the lower left above yy mm dd Set the current year by pressing the SET V or LOGGER A button repeatedly until the correct value appears above yy Quickly within three seconds press the REC ENTER button to store the setting The next screen tha
19. rm LOGGER to briefly appear at the upper right of the display As in automatic datalogging mode in this mode the instrument is storing measurements and their time stamps on the SD card In manual datalogging mode however measurements are being stored continuously with a sampling time of zero and their locations on the card can be changed 5 To change the storage location of manually logged data press the SET V button once this causes the P to disappear from the left side of the display and the value on its line to begin flashing Once the flashing begins you can use the SET W and LOGGER A buttons to change the flashing value to any number between 1 and 99 Once you have chosen the storage location press the REC ENTER button to save the setting This causes the value to stop flashing and the P to return 6 To end manual datalogging press the REC ENTER button and hold it for at least three seconds This action causes the REC message to disappear from the top line of the display TRANSFERRING DATA FROM THE SD CARD TO A COMPUTER After automatic or manual datalogging of measurements remove the SD card from the instrument and plug it into your computer either directly if it has an SD card slot or through an SD card reader Because the files containing time stamped data logs have the file extension xls they open in Microsoft s Excel application Figures 2 and 3 show two kinds of Excel presentations a data o
20. section of this manual for more details Figure 1 shows all of the controls and indicators on the front right side back top and bottom of the HHF SD1 It also shows the main components of the included telescoping probe Familiarize yourself with the positions and functions of these controls indicators and connectors before moving on to the setup procedure 4 18 1 14 1 16 417 4 15 eHtH 440 HHH 41 lJ GHi1 12 FRONT RIGHT SIDE 19 BOTTOM 1 The HHF SD1 s controls and indicators and other physical features CALLOUTS FOR FIGURE 1 1 1 Liquid crystal display 1 2 POWER ESC button 1 3 FUNC HOLD NEXT button 1 4 REC ENTER button 1 5 SET Y button 1 6 LOGGER A button 1 7 Socket for combination air speed temperature probe 1 8 Socket for optional Type K or J thermocouple 1 9 SD card socket 1 10 RS 232 output jack 1 11 RESET button 1 12 Socket for 9VDC AC adapter 1 13 Battery compartment cover 1 14 Battery compartment cover screws 1 15 Kickstand 1 16 Tripod attachment nut 1 17 Telescoping probe plug 1 18 Telescoping probe handle 1 19 Telescoping probe sensing head cover SETUP 1 Choose the power source Before using the HHF SD1 make sure it is powered by fresh batteries or an optional 9VDC AC adapter plugged into the bottom jack on its right side callout 1 12 To remove the battery compartment cover callout 1 13 remove the two sc
21. t appears will have the value above mm flashing Use the SET V or LOGGER A button to navigate to the current month and press the REC ENTER button to store the setting When the next screen flashes the value above dd again use the SET Y or LOGGER A button to navigate to the current day and press the REC ENTER button to store the setting If you press buttons too slowly in setup mode the screen will revert to the normal display To return to the setup sequence press and hold the SET V button again To move ahead to the next field in the sequence or to the next parameter press the FUNC HOLD NEXT button Once you have set the date the display will prompt you to set the hour minute and second of the current time Again use the SET Y or LOGGER A buttons to navigate to the correct values and the REC ENTER button to store the settings 4 Choose a decimal point or comma to represent the decimal division between integers and fractions for example American style 20 88 vs European style 20 88 Once you have set the date and time the display will show the word bASIC above the phrase dEC Press the SET W button to make bASIC American style or Euro appear in the upper display as desired Press the REC ENTER button to store the selection as the default 5 Enable or disable auto power off Once the format of decimal point divisions has been set and stored the display will show the word yES over the term
22. toring Measurements 0 0 cece eee eee eee nee 8 Automatic vs Manual Data Logging ii ii Ge Fae aS BRS RR RS 8 Transferring Data from the SD Card to a Computer 0 0 0 0 e eee eee ee 9 Specifications s sueste ate IAN was ALS Goes EE ARA AA A R E E 10 Maintenance amp Troubleshooting Tips 0 0 ccc unaenea nnar 11 Optional ACCEsSsSOrIES n edi ia oe ee wad ware Galle ea se Wawa 11 INTRODUCTION Thank you for purchasing the HHF SD1 Hot Wire Anemometer Thermometer with Datalogging SD Card Please read this user s manual carefully and thoroughly before using the instrument The HHF SD1 is a general purpose handheld instrument that can make two kinds of measurements e Air wind speed and temperature simultaneously e Surface temperature as measured by an optional Type K or Type J thermocouple All hot wire anemometers including the HHF SD1 have at their heart a very thin metal wire that the instrument electrically heats up above ambient temperature Air flowing past the wire cools it The speed of the air flow can be calculated from the relationship between the metal s electrical resistance and temperature In the HHF SD1 the hot wire is located at the end of a telescoping probe where it is paired with a tiny glass bead thermistor that measures air temperature Compared to other types of anemometers hot wire anemometers have superior performance For this reason they are commonly used for precise meas
23. urement of low speed air flows turbulent flows or of any flow in which rapid velocity fluctuations are of interest Applications include Environmental testing Maintenance and repair of air conveyors and flow hoods in clean rooms Measurement of air velocity produced by fans and blowers Balancing velocity profiles in furnaces and refrigerated cases Operating paint spray booths The HHF SD1 comes with a telescoping air speed temperature probe Air speeds can be displayed in m s meters second fpm feet per minute km h kilometers hr knots nautical miles per hour or mph miles per hour Temperatures can be displayed in F Fahrenheit or C Celsius units Several features and capabilities enhance the instrument s versatility Among them are automatic temperature compensation for measurements made by the telescoping probe or by Type K or J thermocouples the ability to hold readings and display maximum and minimum readings and an automatic power off function that extends battery life Because it is microprocessor based the HHF SD1 can make full use of the portability reliability and large storage capacities that SD memory cards offer Measurements can be made automatically at any sampling rate between one second and one hour After storing and time stamping the measurements on an SD card plugged into the instrument a process called datalogging the user can remove the card and plug it into to a laptop or desktop computer either
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