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1. SENTRY O SENTRY OPTRONICS CORP IRthermo Anemometer with built in Infrared Thermometer Model ST732 7 SENTRY Instruction Manual IRthermo Anemometer with built in Infrared Thermometer Instruction Manual RoHS E Ver 01 10 Aug Table Content 1 Product Introduction 1 1 1 Features 1 1 2 Applications 2 2 Safety Information 2 2 1 Cautions 2 2 2 Safety Symbols 2 3 Specifications 4 3 1 General Specification 4 3 2 Technical Specification 5 4 General Descriptions 6 4 1 Unit Diagram 7 4 2 LCD Panel 7 4 3 Battery Placement 8 4 4 AC Power 8 4 5 Sensor Tip Description 10 5 Mode Functions 11 5 1 Air Velocity Air Temperature Measurement 12 5 2 Air Flow Measurement 42 5 3 IR Thermometer Measurement 12 5 4 Maximum Minimum Average Measurement 13 5 5 Data Logger amp Data Record Recall 13 6 Advanced Set Functions 14 6 1 Air Velocity Setting 15
2. 0 press E button to clear the DATA1 to DATAS9 Data Logger The data logger function can save 20 000 measuring data automatically by presetthe sample time Press the button and hold for 3 seconds to start the data logger function in any measuring mode and the LOG symbol will appear on the LCD Repeat to press the E button and hold for 3 seconds again to exit this function 13 6 Advanced Set Functions Press the fj button and hold for 3 seconds into the advanced set function Repeat to press the EH button and hold for 3 seconds again or idle for 6 seconds to exit this function In the set function press the Bp or q button to adjust press the button to set and automatically toggle to next options The sequential operation and explanations are shown in the following flow chart Advanced set functions Measuring mode Press the MODE button and hold for 3 seconds into the set function y Air Velocity J Air Flow Select the velocity or air flow mode Y Selectthe air velocity unit m s Air Velocity Unit 3 ft min km h mil h knot y Air Flow Unit Select the air flow unit cmm cfm Y IR Thermometer Select the temperature unit C F Temperature Unit y Area Size Set the area size Y Emissivity Set the emissivity of IR thermometer y Sampling Time A of Data l
3. 6 2 Air Flow Setting 15 6 3 IR Thermometer Setting 15 6 4 Sample Time of Data Log Setting 15 6 5 Clear Memory 15 6 6 Data Time Setting 16 6 7 Laser and Backlight ON OFF 16 7 Communication 16 8 Techniques 16 8 1 Useful Equations 16 8 2 Field Of View FOV And Distance amp Spot Size DS Ratio 17 8 3 Emissivity 17 9 Maintenance 18 1 Product Introduction Thank you for purchasing this IRthermo Anemometer with built in non contact Infrared Thermometer The IRthermo Anemometer is an air velocity air flow volume temperature of air and non contact infrared temperature measuring instrument To measure an air velocity put the sensor head face to the measurement air Then the first reading will show the air velocity value To measure a temperature point the meter ata target until the temperature is read Make sure the target area is larger than the unit s spot size For large target objects assure you are within target distance 1 1 Features e Simultaneous display of air flow in CFM CMM or air velocity plus ambient temperatures e Combination of hot wire and standard thermister deliver rapid and precise measurements event at l
4. 7 70 242 0 02 Copper scraped shiny not mirrored 22 72 0 07 Copper Plate heavily oxidized 25 77 0 78 Enamel white fused on iron 19 66 0 9 Formica 27 81 0 94 Frozen soil 0 93 Brick red rough 21 70 0 93 Brick silica unglazed rough 1000 1832 0 8 Carbon T carbon 0 9 ash 127 260 0 81 Concrete 0 94 Glass smooth 22 72 0 94 Granite polished 21 70 0 85 Ice 0 32 0 97 Marble light gray polished 22 72 0 93 Asbestos board 23 74 0 96 Asbestos paper 38 100 0 93 371 700 0 95 Asphalt paving 4 39 0 97 SENTRY SENTRY OPTRONICS CORP 3F No 122 Sec 1 Sanmin Road Ban Ciao Taipei 220 Taiwan R O C TEL 886 2 2956 8198 FAX 886 2 2956 7662 C http www sentrytek com tw PA05 0000732 01 ST 732 Ver 01 10 Aug
5. body temperature simply for reference They are meant for industrial and scientific purposes 2 2 Safety symbols Dangerous refer to this manual before using the meter C CE Certification This instrument conforms to the following standards EN61326 Electrical equipment for measurement control and laboratory use IEC61000 4 2 Electrostatic discharge immunity test IEC61000 4 3 Radiated radio frequency electromagnetic field immunity test 1EC61000 4 8 Power frequency magnetic field immunity test 1EC60825 1 Safety RoHS Restrict to use of six substances within electrical E and electronic equipment EEE thereby contributing to the protection of human health and the environment The device may not be disposed of with the trash lt promotes the re use recycling and other forms of recovery of used materials and components and to improve the environmental performance of all operators manufacturers traders and treatment facilities involved in the life cycle of products Dispose of the product appropriately in accordance with the regulations in force in your country REACH SVHC The device of used materials content no following substances that list of proposed REACH substances of very highconcern 3 Specification 3 1 General Specification Air Velocity m s ft min km h mile h knots Measurement Air Flow CMM m min CFM ft min Temperature C and F Sensors Air Velocity Air Flow Se
6. e LCD Press the button to erase the entire memory of data logger The CLR Memory symbol will appear and flash on the LCD 15 6 6 Date Time Setting Date Setting The and y m d symbols will appear on the LCD Press the button to select the year month or date to set The selected unit will flash on the LCD Press the BY or button to set the current system date e Time Setting The Oand h m s symbols will appear on the LCD Press the button to select the hour minute or second to set The selected unit will flash on the LCD Press the DB or 77 button to set the current system time 6 7 Laser and Backlight ON OFF Laser Backlight Setting Press the 9 button to turn the laser or backlight on and off Backlight OFF Backlight ON Backlight OFF Backlight ON gt gt gt Laser OFF Laser OFF Laser ON Laser ON A 22 y 7 Communication The IRthermo Anemometer is equipped with a communication jack on its underside The supplied communications cable connects to this jack and to a USB port on a PC The supplied software allows the user to view and save readings to the PC Instructions for operations and features are detailed in the supplied software HELP utility 8 Techniques 8 1 Useful Equations Area equation for rectangular or square ducts H Height Area W Width x H Height W Width 16 Area equatio
7. gh in some cases is comparable to contact devices 9 Maintenance Cleaning the lens Blow off loose particles using clean compressed air Gently brush remaining debris away with a camel s hair brush Carefully wipe the surface with a moist cotton swab The swab may be moistened with water NOTE DO NOT use solvents to clean the glass lens Cleaning the housing Use soap and water on a damp sponge or soft cloth 18 Emissivity Table Material Temp C F Emissivity Gold pure highly polished 2271440 0 02 Aluminum foil 27 81 0 04 Aluminum disc 27 81 0 18 Aluminum household flat 23 73 0 01 Aluminum polisned prate 98 3 227 400 0 04 577 1070 0 06 Aluminum rough plate 26 78 0 06 Aluminum oxidized 599 C 199 390 0 11 599 1110 0 19 Aluminum surfaced roofing 38 100 0 22 Tin bright tinned iron sheet 25 77 0 04 Nickel wire 187 368 0 1 Lead pure 99 95 unoxidized 127 260 0 06 Copper 199 390 0 18 599 1110 0 19 Steel 199 390 0 52 599 1110 0 57 Zinc galvanized sheet iron bright 28 82 0 23 Brass highly polished 247 476 0 03 Brass hard rolled polished w lines 21 70 0 04 Iron galvanized bright 0 13 Iron plate completely 20 68 0 69 Rolled sheet steel 21 71 0 66 Oxidized iron 100 212 0 74 Wrought iron 21 70 0 94 Molten iron 1299 1399 3270 2550 0 29 Copper polished 21 11
8. n for circular ducts Area 3 14 x r radius e Cubic equation CMM m min Air Velocity m s x Area m x 60 CFM ft min Air Velocity ft m xArea ft 8 2 Field Of View FOV And Distance To Spot Size DS Ratio The field of view is the angle of vision at which the instrument operates and is determined by the optics of the unit The FOV is the ratio of the distance from the target to the target diameter The smaller the target the closer you should be to it When the target diameter is small it is important to bring the thermometer closer to the target to insure that only the target is measured excluding the surroundings 8 3 Emissivity Emissivity is the ability of an object to emit or absorb energy Perfect emitters have an emissivity of 1 emitting 100 of incident energy An object with an emissivity of 0 8 will absorb 80 and reflect 20 of the incident energy Emissivity is defined as the ratio of the energy radiated by an object at a given temperature to the energy emitted by a perfect radiator at the same temperature All values of emissivity fall between 0 95 fixed 17 Non contact temperature sensors measure IR energy emitted by the target have fast response and are commonly used to measure moving and intermittent targets targets in a vacuum and targets that inaccessible due to hostile environments geometry limitations or safety hazard The cost is relatively high althou
9. nsor Hot wire Infrared sensor Thermopile Operating Temp 0 50 C 32 122 F 10 90 RH Storage Temp 10 60 C 14 140 F Sample Time Approx 0 5 sec Data Logging YES 20000 points Record Function YES 9 points Time Interval YES PC Interface YES AC Power YES Multi LCD Display YES Max Min Avg YES LCD Backlight YES Data Hold YES Weight Approx 320g 11 3 oz Auto Power Off 10 Minutes of idle 30 Minutes with AC Power Dimensions 184x70x40mm 7 24 x2 75 x1 57 Telescope probe approx 1800mm 70 8inch include wire rod Accessories 9V Battery Instruction manual Carrying case AC Input USB Transmission line PC Interface window bace software 3 2 Technical Specification Range Air Velocity 0 40m s 0 7874ft min 0 144km h 0 89 5mile h 0 77 75knots Air Flow 0 72 000 CMM m min 0 2 542 700 CFM ft min Air Flow Area 0 001 30m 0 01 322 92ft Air Temperature 0 70 C 32 158 F Temperature 32 537 5 C 25 999 F Resolution Air Velocity 0 01m s 0 1ft min 0 01km h 0 01mile h 0 01knots Air Flow 1CMM 1CFM 0 99999 CFM 10CFM 100000 999990 CFM 100CFM 1000000 1907000 CFM Air Flow Area 0 001m 0 01ft Air Temperature 0 1 C 0 1 F Temperature 0 1 C 0 1 F Accuracy reading Air Velocity 0 03 3 m s 5 9 3 ft min 0 11 3 km h 0 07 3 mile h 0 06 3 kn
10. o meter Measurement A E The meter works in temperature O 17 no 20 lec measuring mode Point the meter no II at a target and it will show the F temperature value on the secondary reading During measuring press the ES button once to hold the temperature value and the EXI symbol will MAX MNAO appear on the LCD Press the button again to return to normal operation 12 5 4 Maximum Minimum Average Measurement A EXT i In measuring mode press the ES Hl button to toggle the AOL MAX MIN AVG mode and measure a target it will show the xoxo REX MAX MIN AVG air velocity flow value on the primary reading and show the MAX MIN AVG MAX MIN AVG UT Ec temperature value on the Clio secondary reading During measuring press the E button once to hold the measured value and the smbol willappear on the LCD Press the button again to return to normal operation and the MAX MIN value will reset 5 5 Data Logger 8 Data Record Recall A En Data Record MO The data can be recorded in the CVC measuring mode function Just press E button once the value xoxo EAT on na secondary and tertiary readings will be recorded in DATA and automatically point to a O ec next address DATA 1 0 0 0 gt Data Recall Press the EJ button to select the recall mode and the RECALL symbol will appear on the LCD Press the E or 2 button to recall the stored data At the DATA
11. o change The sequential operations and explanations are shown in the following flow chart Mode Function Measuring Normal Measuring mode Mode MAX MAX Display maximum measuring MIN Mode MIN Display minimum measuring AVG AVG Display average measuring RECALL Recall the stored data by using A or Y button 11 5 1 Air Velocity Air Temperature Measurement The meter works in air velocity measuring mode please refer to chapter 6 1 Place the sensor in the air stream It will show the air velocity value on the primary NM NM non reading and show the air I 1 1 I ip temperature value on the tertiary fm a lg ng oes ks reading During measuring press MAX MIN AVG DATAE RECALL AO c e the O button once to hold the le air velocity value and the Em symbol will appear on the LCD Press the button again to return to normal operation 5 2 Air Flow Air Temperature Measurement The meter works in air flow measuring mode please refer to chapter 6 2 Place the sensor in the air stream It will show the air x10x10 EU flow value in the primary reading c oO 1 OO 10 1 and show the air temperature value in the tertiary reading MINIE 00 Ed measuring press the MAX MIN AVG 7 og button once to hold the air DATA RECALL j ogy flow value and the EAN symbol will appear on the LCD Press the button again to return to normal operation 5 3 Non contact Infrared Therm
12. og Setthe sampling time of data log Y Clear Memory Clear the memory of data log y Date Setting Set the current system date Y Time Setting Setthe current system time 2 A 14 6 1 Air Velocity Setting Air Velocity Flow mode Press the D or button to select mode All of unit symbols in the same mode will flash onthe LCD e Air Velocity Unit Press the FW or button to select the air velocity unit The unit symbol will flash on the LCD 6 2 Air Flow Setting Air Flow Unit Press the DB or GQ button to select the air flow unit The unit symbol will flash on the LCD Area Size Press the Por button to adjust the size within 0 001 to 30 000 m 0 01 to 322 92 ft The value will flash on the LCD 6 3 IR Thermometer Setting Temperature Unit Press the QQ or EJ button to select the C or F unit The unit symbol will flash on the LCD e Emissivity The EMS symbol will appear on the LCD Press the E or button to adjust the EMS within 0 10 to 1 00 and the value will flash on the LCD 6 4 Time of Data Log Setting e Time of Data Log The and DATA LOG symbols will appear on the LCD Press the button to select the minute or second to set The selected time unit will flash on the LCD Press the BY or EJ button to set the time 6 5 Clear Memory e Clear Memory The Memory Space symbol will appear on th
13. ots Air Flow 1 8 m min 3 of reading Temperature 3 0 C 5 4 F from 32 20 C 25 4 F 2 0 C 3 6 F from 20 100 C 4 212 F 2 from 100 537 5 C 212 999 F Emissivity 0 95 fixed Distance Spot Ratio 8 1 4 General Descriptions 4 1 Unit Diagram 9 40 1 Power Button 9 MODE SET Button 2 LCD Screen A Up Button 3 REC Button 41 Probe Socket 4 IR Thermometer Hold Button 42 Measuring Window 5 Y Down Button 3 Laser Sighting 6 Anemometer Hold Button 4 Sensor Head 7 AC Input Terminal 5 Probe Plug 8 Laser Backlight Button 4 2 LCD Panel od 0 emory Space LR Memory X10 X100 rms O HOLD yy d m noooo OOO MAX MIN AVG DATA 8 RECALL LOG LINK EMS CO Lec OO F A Time Interval Laser Backlight B Secondary Reading C Memory Space Clear Memory D X10 X100 E Primary Reading F MAX MIN AVG G DATA Record Recall Log H PC Link EMS O IR Thermometer Hold Q Low Battery Q IR Thermometer Unit Time Date M Anemometer Hold N Anemometer Unit Tertiary Reading 4 3 Battery Change The meter is powered by a 9V battery When l symbol appear the battery voltage drops below the level for reliable operation the user has to replace a new battery To change the battery open the battery co
14. ow air velocity e Wide range measurement of air velocity fast response time e Multi functions for air velocity measurement m s km h ft min knots mile h Infrared thermometer measures remote surface temperature to 932 F 500 C with 8 1 distance to spot ratio and laser pointer e Super large LCD with dual function display read the air velocity amp temperature at the same time Real time data logger build in clock hour min sec year month date Data hold and record recall maximum minimum and average reading Ultra low power consumption in shutdown mode e Auto power off after 10 minutes of idle 30 Minutes with AC Power USB PC interface 1 2 Applications Air conditioner Refrigerated case Ventilation system e Furnace flow velocity Fans motors blowers Environmental testing Long distance temperature monitoring e Manufacturing processes of semiconductor technology 2 Safety Information A Read the following safety information carefully before attempting to operate or service the meter Only qualified personnel should perform repairs or servicing not covered in this manual Laser Warning Note Do not point laser directly at eye Use caution a round reflective surfaces Keep out of reach of children 2 1 Cautions e DO NOT submerge the unit in water e This product is not designed for use in medical evaluations The product can only be used to measure
15. ver on the back and replace the battery in the battery compartment Make sure the cover is well snapped after the replacement of battery Tilt stand 9V Battery 4 4 AC Power Except battery power supply the unit also consumes AC power via USB cable a Plug A male of the cable into A receptacle of the AC adapter included in the package Fig 1 and plug mini B male into the mini B receptacle of the unit b Plug the AC adapter to the wall jack Fig 2 Option c Plug A male into PC or Notebook USB port Fig 3 AC Plug with interchangeable PIN Please see specification en la Fig 1 Fig 2 Fig 3 4 5 Sensor Tip Description Sensor Head Measurement Not in Use 0 H a e o 4 1 Air Direction Arrow To protect the sensors 2 Air Velocity Sensor please telescope the sensor head into the Do not touch wand when the meter Temperature Sensor is notin use N Warning Do not touch the air velocity or temper ature thermistor inside the sensor head Air Velocity Measurement Place the sensor in the air current to be measured Have the air flow meet the sensor head in the direction toward the arrow gt IN rec nN E 5 Mode Function lt is easy to operate more measurement functions by using RA button t

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