FLOW ANEMOMETER - Electrocomponents
Contents
1. less than 3600 data points If there are more than 3600 data the STATIS option will be disabled Clear Clear the graphic screen Print Print out the curve if a printer is connected to PC DISPLAY DISPLAY menu has four options DIGITAL ANALOG LIST and GRAPHIC DIGITAL If this option is selected or CTRL D is pressed a window which emulates a multimeters LCD display appears on the screen ANALOG If this option is selected or CTRL A is pressed a window which emulates an analog meter appears on the screen LIST Anemometer Analog Display a 14 08 10 0 14 08 11 1 14 08 11 9 14 08 13 0 14 08 14 0 Flow Anemometer List Normal Normal Normal Normal Normal If this option is selected or CTRL L is pressed a window which lists the date function range and value of every sample made appears on the screen GRAPHIC SG Anemometer Graphic Display m s asa Print Scale 0 b 14 08 42 If this option is selected or CTRL G is pressed a window which emulates a strip chart recorder appears on the screen The graphic window has two menu options PRINT and SCALE If the PRINT menu option is selected the graphics will be printed through any printer connected to the PC The SCALE menu allows setting of the minimum and maximum value for the Y vertical axis Option If this option is selected a pull down menu will show three options Limits sample rate and baud rate2. Upper Limit Enter the upper limit If the upper limit is exceeded an OVER message will be displayed on the screen Lower Limit Enter the lower limit If the displayed value is less than the lower limit an UNDER message will be displayed on the screen Graphic Mode Select method of display in the graphic windows Dots or BAR Sample Rate Select this option to enter the PC sampling time or click on SAMPLE on the screen to enter the sampling time Baud Rate 9600 V Specifications 23 5 C Range of wind velocity Units Threshold mis fUmn 0 8800 2 160 X 239120 k knots 0 0 880 0 02 06 48 402 Km hr mph m s metres per second ft min feet per minute knots nautical miles per hour Km hr kilometers per hour mph miles per hour Units conversion table Km hr 3 60 0 01829 1 8519 1 6071 Range of temperature Range sd Resolution _ Accuracy 0 45 0 0 Ze 2 32 0 113 0 Flow Auto range CMM 0 to 45 00 m s CFM 0 to 8800 ft min JRange Resolution Area CEM ft min 0 999900 0 001 100 0 001 9999 CMM m min 0 999900 0 001 100 0 001 9999 Sensor turbine bearing Sapphire jewel CFM ft amp min Wind velocity ft min x area ft CMM m3 min Wind velocity m s x area m2 x60 Temperature sensor K type thermocouple Mounting nut 1 4 x 20 UNC Operating temperature Meter 0 C 50 C 32 F 122 F Vane 0 C 60 C 32 F 140 F Operating
3. ai Il 1 LCD AVE MIN 2 3V MAX VEL FLOW When average flow measurement is selected by the OPTION button this symbol will appear When the MAX MIN button is pressed twice this symbol will appear to indicate the measured minimum value for either velocity or flow as displayed on the LCD This symbol will be displayed together with MAX when the 2 3VMax method is selected by OPTION button in flow measurement When the MAX MIN button is pressed once this symbol will appear to indicate the maximum function is enabled When the VEL FLOW button number 4 is pressed this symbol will appear to indicate the anemometer is measuring wind velocity This symbol will be displayed when the anemometer is measuring airflow RS 232 When the RS 232 function is enabled this ft2 m2 eC F CFM CMM x100 x10 m s ft min MPH Km h symbol will appear This symbol indicates free area in square feet when in flow function This symbol is used to indicate free area in square metres when in flow function This symbol indicates the temperature in Celsius This symbol is used to indicate temperature in Fareinheit This symbol is used to indicate units are cubic feet per minute This symbol is used to indicate units are cubic meter per minute This symbol is used to indicate the actual value is the value displayed in the LCD multiplied by 100 This symbol is to used indicate the actual val
4. 2 C 2C 2 C 2L 2t 2 C 2L 2C 8 C 2 t 2C 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 Current Block 1 Selected 1 00 00 01 0 m s 45 00 00 00 21 2C Normal Batt 0 K Indicates how many characters in one record Current Block Indicates the current block number being reviewed Selected Indicates the current record number being selected Plotting Data from File If the Plot data from file option under FILE is selected in the main window a plot window will be shown and a curve of the data file may be plotted If a printer is connected the plotted curve may be printed File Open the file to plot data from Select Select one of the parameters velocity temperature flow or area to plot Scale Set the scale of the Y axis X Label A sequence of numbers 1 2 3 4 or time 12 00 01 12 00 05 may be added as an X axis label Title Enter the title for X axis Y axis or Graph Grid Draw horizontal or vertical grids or both Zoom Zoom into a section of the graph The magnified area Flow Anemometer Plot Data File SeLect Scale XLabel Title Grid Zoom Clear Print Air Speed 0 0 00 00 01 0 0 00 17 0 00 00 33 0 00 00 09 0 00 00 25 0 is limited to 3600 points Statis Statistics This function allows a plot of the average value standard deviation or best fit over the curve to be made This function is valid only when the are
5. CD 3 Measurement of wind or air flow instantaneous air flow 1 2 3 Press the on off button to turn the anemometer on Press the VEL FLOW button number 4 to select FLOW function The FLOW symbol will appear in LCD Press the unit button number 3 to select the desired units CFM or CMM The previous stored free area value will be displayed in the upper part of the LCD To enter a new free area value press the AREA number 0 button The lower four digits will become blank and the anemoemter is ready for a value to be entered 5 Press the OPTION button several times until none of the AVE or 2 3VMAX symbols are shown on the LCD 6 Enter the free area value required by pressing the numerical keypad After the free area is entered press the ENTER button to store the value The value will also automatically be stored after all 4 digits are entered Determine the approximate wind direction Hold the anemometer so that the air flow will pass through the vanes from the back to the front the back is where the mounting thread is located 9 Wait for 2 seconds for the reading to stabilize The flow rate value will be displayed in the lower part of the LCD This value equals velocity multiplied by the free area o N FLOW VELOCITY FREE AREA 10 To maintain the measurement accuracy keep the axis of the turbine vanes within 20 of the wind direction 4 Measurement of wind or air flow 2 3Vm
6. FLOW ANEMOMETER USER MANUAL TABLE OF CONTENTS Features lll Operating instruction III 1 Measurement of wind velocity III 2 Measurement of wind air temperature 7 III 3 Measurement of wind air flow instant air flow 7 III 4 Measurement of wind air flow 2 3vmax air flow 8 III 5 Measurement of wind air flow average air flow 9 NO N III 6 Reading hold 11 III 7 Finding the maximum or minmum values 11 III 12 To send data to a PC through RS 232C interface AVM 07 11 III 13 The RS 232 serial data format 12 IV Windows application program 13 IV 1 Installation of the Windows application program 13 For Windows 95 13 IV 2 Description of Windows application program 14 Main window 14 V Specifications 22 VI Battery replacement 24 Features e Sensitive and accurate measurements due to ultra low friction turbine jewel bearing e Flow measurement in CMM or CFM e Velocity measurement in m s ft min knots km hr or mph e Dual Display showing velocity temperature or flow area e RS 232C interface e C or F selectable e Ergonomic and easy to use design e Read while measuring via detached vane sensor e Large 17mm 3 digits Liquid Crystal Display e Hold Max Min function e Build in low battery indicator Il Front Panel Description Figure 1 1 LCD display 2 Detached vane turbine sensor 3 Power on off button 4 RS 232C interface 5 Function and numerical keypad AEM UVA AH VEL READ NO
7. ax air flow 1 Press the on off button to turn the anemometer on 2 Select the required anemometer function by pressing the VEL FLOW button number 4 The FLOW symbol will appear on the LCD 9 Select the desired units CFM or CMM by pressing the units button number 3 The previous stored free area value will be displayed in the upper part of the LCD To enter a new free area value press the AREA number 0 button The lower four digits will become blank and the anemoemter is ready for a value to be entered Press the OPTION button to select 2 22VMAX method Enter the free area value required by pressing the numerical keypad After the free area is entered press the ENTER button to store the value The value will also automatically be stored after all 4 digits are entered Determine the approximate wind direction Move around the center of free area to find the point of maximum wind velocity The anemometer will record the maximum value and use it to calculate the wind flow by the following equation FLOW E x max VELOCITY x FREE AREA To maintain the measurement accuracy keep the axis of the turbine vanes within 20 of the wind direction 5 Measurement of wind or air flow average air flow 1 2 Press the on off button to turn the anemometer on Select anemometer function by pressing the VEL FLOW button number 4 The FLOW symbol will appear in the LCD Select the desired units CFM
8. humidity Less than 80 RH Operating pressure 500 mB to 2 Bar Storage temperature 40 C to 60 C 40 F to 140 F Power consumption Approx 3 mA Battery type 9V IEC 6LR61 Battery life 50 hours for 300mA hrs battery Dimensions Meter 3 46 x 6 61 x 1 03 88x 168 x 26 2mm Sensor 2 60 x 5 22 x 1 15 66 x 132 x 29 2mm Weight 12 340z battery included 350g Accessories Carrying case x 1 Users manual x 1 9V Battery x 1 VI Battery replacement When the low battery symbol is displayed on the LCD replace the battery as follows 1 2 3 4 Turn off the anemometer by pushing the On Off button Remove the screw of the battery compartment cover and remove the battery compartment cover Replace the exhausted battery with a new one Replace the battery compartment cover and fasten the screw
9. nimum The absolute minimum value recorded by the PC Reset Clear the minimum and maximum values recorded Maximum The absolute maximum value recorded by the PC Lower The minimum value of the range specified Upper The maximum value of the range specified File If you select File a pull down menu will show six options Name Start Recording End Recording VIEW Plot Data from File and Exit Name Enter the required file name for the stored data as displayed in LCD at the specified interval Start Recording Start recording when selected End Recording End recroding when selected VIEW FILE If the View option under FILE in the Main Window is selected a view window is shown as below and the ASCII data file is displayed If a printer is connected to the PC a selection of the data content may be printed File Open a data file by selecting this menu Enter the required file name After the name is entered the program will read in one block of data The number of records in one block will depend on the memory size of the PC the more memory the more records in one block Blocks Read Indicates how many blocks of records have been read Records Read Indicates how many records have been read Chars Record Blocks Read 1 Records Read 40 Chars Record 71 Click at the list to re align list NJ IN NJ NJ IND ISO IND ISO IND IND IND ND ND INT NT IND NJ 2 t 2E 2C 4C 2 C 2C
10. or CMM by pressing the units button number 3 The previously stored free area value will be displayed in the upper part of the LCD To enter a new free area value press the AREA number 0 button The lower four digits will become blank and the anemoemter is ready for a value to be entered Press the OPTION button to select AVE method Enter the free area value required by pressing the numerical keypad After the free area is entered press the ENTER button to store the value The value will also automatically be stored after all 4 digits are entered Press the START button dot to clear the upper LCD to zero Determine the approximate wind direction Select the measuring point in the free area and hold the sensor steady in position until the reading on the LCD stabilizes then press the NEXT button dot to record this reading Repeat this process for each new measuring point required The value in the upper LCD will increment each time a reading is taken to indicate how many points have been averaged The lower display will show the average value of all the readings taken The maximum number of points is 12 FLOW L VELOCITY x FREE AREA Hold the anemometer so that the air flow will pass through the vanes from the back to the front the back is where the mounting thread is located 11 To maintain the measurement accuracy keep the axis of the turbine vanes within 20 of the wind direction 6 Holding
11. t 3 most significant in upper LCD Digit 2 in upper LCD Digit 1 in upper LCD Digit 0 least significant in upper LCD Digit 3 most significant in lower LCD Digit 2 in lower LCD Digit 1 in lower LCD Digit 0 least significant in lower LCD IV Windows application program IV 1 Installation of the Windows application program For Windows 95 98 2000 NT or XP A Start Windows B Insert the CD C Press START button then select Run D Browse the CD drive and click on setup then click on open then click on OK E Follow the on screen instructions to install the programme IV 2 Description of Windows application program Main Window When the program is executed the program automatically search for the connected anemometer or available serial port If no serial port is available then a message of No communication port will be displayed and the program exits Once communication port is established the main programme window will be displayed on the screen as above Description of data fields Sample The value under SAMPLE is the sampling time Temperature Temperature of air or wind Option Display option of anemometer MAX MIN AVE or 2 3Vmax Unit Display units of velocity or flow m s ft min knot mph kmh CFM or CMM Value The value under VALUE is the reading from the anemometer Range The text displayed under RANGE is the range of the unit selected at the anemometer Mi
12. the Reading Press the HOLD button to hold the reading of values in LCD Press again to return to normal measurement mode IIl 7 Finding the Maximum or Minmum values Press the MAX MIN button to record the maximum values of wind velocity and temperature or flow Press again to record the minimum values and press again to return to normal measurement mode 12 To Send Data Out to PC through RS 232C AVM 07 1 Press the power on off button to turn the anemometer off Hold the RS 232 button number 1 and press the power on off button to turn the anemometer on and enable the RS 232 function The RS 232 symbol will appear in the LCD 2 15 bytes of data will be sent out through the RS 232C port every one second 13 The data format sent out through the RS 232 port is as follows Byte1 Byte2 Byte3 Byte4 Byte5 Byte6 Byte7 Byte8 Byte9 Byte10 Byte11 Byte12 Byte13 Byte14 Byte15 OD hex bit4 Velocity OL bit5 Area OL bite temperature OL 0 m s 1 ft min 2 knots 3 km hr 4 MPH bit2 MAX bit3 MIN bit4 0 VEL 1 FLOW bits 0 Degree C 1 Degree F bit7 RS 232 enabled bit0 0 CMM 1 CFC bit3 Low Battery bit4 temperature OL bit5 AVE bit6 2 3Vmax bit7 Instant Lower LCD decimal point bit0 x100 bit1 x10 bit2 x1 bit3 dp1 right most bit4 dp2 bit4 dp3 left most Upper LCD decimal point bit2 x1 bit3 dp1 right most bit4 dp2 bit5 dp3 left most Digi
13. ue is the value displayed in the LCD multiplied by 10 This symbol is to used indicate the units are metres per second This symbol is to used indicate the units are feet per minute This symbol is to used indicate the units are miles per hour This symbol is to used indicate the units are kilometers per hour Ill Operation Instructions SCREW s Figure 2 Ill 1 Measurement of wind velocity refer to figure 2 1 2 Press the on off button to turn the anemometer on Select the required function by pressing the VEL FLOW button number 4 The VEL symbol will appear in LCD when in velocity measurement mode Press the units button number 3 to select the desired units Determine the approximate wind direction Hold the anemometer so that the air flow will pass through the vanes from the back to the front the back is where the mounting thread is located Wait for 2 seconds for the reading to stabilize To maintain the measurement accuracy keep the axis of the turbine vanes within 20 of the wind direction 2 Measurement of wind or air temperature 1 2 3 4 When the meter is measuring wind velocity the termperature of wind is measured at the same time Select C or F by pressing the C F button number 6 Allow the wind the pass through the vanes A thermocouple is built into the centre of the vane Read the temperature on the L
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