Heavy Duty CFM-CMM Thermo-Anemometer
Contents
1. This buton also functons as tne decimal positioning tol in the AREA mode C F UNITS A Press to select the mode of operation and unit of measure In FLOW mode the meter displays air volume In VELOCITY mode the meter displays air speed This button also functions as the UP arrow button in AREA mode AREA NEXT Press and hold to enter the AREA mode The NEXT function allows the user to save AREA values to any of eight memory locations This button is also used to clear stored readings in the MAXIMIN AVG modes HOLD P for air velocity and air flow measurements Backlight Press to freeze the displayed air velocity or air flow reading Press again to unlock display This button also functions as the right arrow button in the AREA mode NOTE Battery Compartment and Tripod Mount are located on the reverse side of the meter 3 HOGODEU v2 0 4 08 Operation Velocity Measurements Side view of Vane 1 Connect the sensor to the sensor input jack on top of the meter Arrow Turn ON the meter using the on off button e 3 Select the VELOCITY function using the UNITS button Press the button repeatedly until the LCD displays VEL airflow 4 Press and hold the UNITS button for 2 seconds until two tones are heard to change the temperature units from C to F or from F to C The LCD will reflect the selection 5 Select the desired air velocity units using the UNITS button The LCD will reflect the selection2. 0 1 C F 2 or 42 C 4 F Copyright 2008 Extech Instruments Corporation a FLIR company All rights reserved including the right of reproduction in whole or in part in any form n HOSODEU V20 4 08
3. 2 HO3ODEU V2O 4 08 Meter Description 1 LED display for Air Velocity Air Flow Probe Temperature and remote surface temperature Units of measurement and user alerts are also displayed on the LCD Vane Sensor Hold the sensor in the flow of air to take a reading IR sensor Non contact temperature measurement for remote surfaces Laser Pointer Helps the user aim the IR sensor Battery access Cover on rear panel PC interface jack Use the supplied cable to connect meter to a PC Upper Keypad brief descriptions below IRT Press and hold to measure remote surface temperature Release to hold the temperature value on the display MAXMIN for air temperature measurements Used to record and store the highest and lowest readings for temperature measurements made by the vane probe AVG Used to obtain Average for multi point measurements in either FLOW or VELOGITY modes Up to twenty 20 points can be averaged HOLD 3 for air temperature measurements Press to freeze the displayed temperature reading measured by the probe Press again to unlock the display Press and hold for 2 seconds to activate the LCD backlight Press and hold again for 2 seconds to turn the backlight off Lower Keypad onvott button CD Press totum the meter ON or OFF MAXMIN lt for air velocity and air flow Press to record and store the highest lowest and continuous moving average readings for single point measurements
4. x Height H Width W Area equation for circular ducts Area A nx r Where zt 3 14 andr radius x radius Cubic equations CFM ft min Air Velocity ft min x Area ft CMM m min Air Velocity m sec x Area m x 60 NOTE Measurements made in inches must be converted to feet or meters before using the above formulae Unit of Measure Conversion Table ms ftimin knots kmh MPH 1 mis 1 196 87 1 944 3 6 224 f min 0 00508 1 0 00987 0 01829 0 01138 1 knot 0 5144 101 27 i 1 8519 1 1528 1 km h 0 2778 54 69 0 54 1 0 6222 1 MPH 0 4464 87 89 0 8679 1 6071 1 40 HOSODEU V20 4 08 Specifications General Specifications Display Measurements Data Hold Sampling rate Sensors IR Distance to Spot ratio IR Spectral response IR Emissivity MIN MAX AVG Auto Power OFF PC Interface Over range indication Low battery indication Power supply Operating conditions Dimensions Weight Weight Dual Display Multi function LCD with 9999 counts Air Velocity m s km h ft min knots mph Air Flow CMM m min and CFM f imin Air Temperature through vane and Surface Temperature using the IR thermometer function C and F Freezes displayed reading 1 reading per second Air velocity Air flow sensor Conventional angled vane arms with low friction ball bearing Air temperature sensor Precision thermis
5. Display 11 Ifthe CFM or CMM reading exceeds 9999 the display will show the X10 or X100 multiplier in the lower right hand comer of the LCD indicating that the displayed value must be multiplied by 10 or 100 to arrive at the correct flow measurement value 4 HO3ODEU v2 0 4 08 Non contact IR Surface Temperature Measurements The built in IR sensor can remotely measure the temperature of just about any surface The Laser pointer allows the user to aim accurately when taking remote measurements Turn ON the meter using the on off button The IR sensor is located at the top of the meter Point the sensor toward the surface to be measured hepa Press and hold the IRT button to begin measuring the surface temperature of a desired target IR TEMP and will appear on the display The laser pointer will Switch on to help aim the meter 5 The measured IR surface temperature will appear on the LCD The temperature displayed is the temperature of the area within the spot 6 When the IRT button is released the laser pointer will switch off and the reading will freeze data hold on the display for approximately 7 seconds 7 After the 7 second hold time the meter returns to the Air Velocity Flow and Air Temperature mode WARNING Do not directly view or direct the laser pointer at an eye Low power ivisible lasers do not normally present a hazard but may present some potential for it Data Hold 1 The HOLD b
6. the meter 2 Press in and down on the arrow located above the tilt stand hinge 3 Replace the 9V battery and the battery cover You as the end user are legally bound Battery ordinance to return all used batteries and accumulators disposal in the household garbage is prohibited You can hand over your used batteries accumulators gratuitously at the collection points for our branches in your community or wherever batteries accumulators are sold Disposal Follow the valid legal stipulations in respect of the disposal of the device at the end of its lifecycle Auto Power OFF override The HD300 is programmed to turn off automatically after idling for 15 minutes This is designed to save battery life in the event the meter is left ON inadvertently Note When the meter is in the CFF CMM or Average mode Auto Power Off is disabled To over ride this feature 1 Turn the meter OFF Tum the meter ON while holding down the IRT button 2 3 Release the button when d5 FP appears in the display 4 The meter will now remain ON until the user manually turns if OFF 5 The next time the meter is turned OFF the Auto Power OFF function will be re activated USB PC Interface and Software The HD300 is equipped with a communication jack on its upper left side 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
7. use and features are detailed in the supplied software HELP utility 7 HO3ODEU v2 0 4 08 IR Theory IR thermometers measure the surface temperature of an object The meter s optics sense emitted reflected amp transmitted energy that is collected and focused onto the meters detector The meter s circuitry translates this information into an LCD reading InfraRed Measurement Considerations When taking IR measurements the meter automatically compensates for ambient temperature changes Note that it may take up to 30 minutes to adjust to extremely wide ambient changes Low temperature measurements quickly followed by high temperature measurements may require several minutes to stabilize as a result of the IR sensor cooling process Ifthe surface of the object under test is covered with frost oil grime etc clean before taking measurements Ian object s surface is highly reflective apply masking tape or flat black paint before measuring Steam dust smoke etc can obstruct measurements To find a hot spot aim the meter outside the area of interest then scan across in an up and down motion until the hot spot is located IR measurements cannot be made through glass IR Field of View Ensure that the desired target is larger than the spot size As the distance from an object increases the spot size of the area measured by the meter becomes larger The meter s field of view ratio is 30 1 m
8. 6 Place the sensor in the air current to be measured with the arrow on the inlet side of the vane see diagram 7 View the air velocity and temperature readings on the LCD Display Flow Volume Measurements CFM CMM 1 Connect the sensor to the sensor input jack on top of the meter 2 Turn on the meter using the on off button 3 Select the FLOW mode using the UNITS button Press the button repeatedly until the LCD displays FLOW CFM cubic feet per minute or FLOW CMM cubic meters per minute as desired 4 Measure the dimensions of the duct or vent in question and calculate the area in square feet or square meters Note If the dimensional measurements are made in inches or cm convert them feet or meters before calculating the square area 5 To begin entering the area in m or f press and hold the AREA button for approx 2 seconds until two tones are heard 6 Momentarily press the NEXT button to select the desired memory location to store the area value there are eight locations 7 Use the button to change the value of the flashing digit use the PP button to select another digit and use the 4 bution to move the decimal point 8 Press and hold the AREA button for approx 2 seconds until two tones are heard to save the area value in memory 9 Place the sensor in the air current to be measured with the symbol on the inlet side of the vane 10 View the air flow and temperature readings on the LCD
9. User Guide EXTECH INSTRUMENTS A FLIR COMPANY Heavy Duty CFM CMM Thermo Anemometer With built in non contact IR Thermometer and Laser Pointer Model HD300 Introduction Congratulations on your purchase of the Extech HD300 CFM Thermo Anemometer This handheld meter measures and displays air velocity air flow volume temperature of air and surface temperature using the built in non contact IR thermometer This meter is shipped fully tested and calibrated and with proper use will provide years of reliable service Features CFM CMM Thermo Anemometer with built in non contact IR Thermometer measures remote surfaces to 932 500 C with a 30 1 distance to spot ratio and Laser pointer Simultaneous display of Air Flow or Air Velocity plus ambient temperature Eight 8 memory locations permit the user to store multiple air duct AREA values for fast and easy recall Twenty 20 reading average for Air Flow or Air Velocity Large backlit LCD display 8 velocity accuracy via low friction 2 83 72mm ball bearing vane wheel on a 9 120cm cable Data Hold and Max Min Avg Auto Power OFF can be disengaged Safety Use extreme caution when the laser pointer beam is on Do not point the beam toward anyone s eye or allow the beam to strike the eye from a reflective surface Do not use the laser near explosive gases or in other potentially explosive areas
10. eaning that if the meter is 30 inches cm from the target the diameter spot of the object under test must be at least 1 inch cm Refer below to the field of view diagram Q 60 2 Q 30 30mme 900mm 50mme 1500mm sivity Most organic materials and painted or oxidized surfaces have an emissivity of 0 95 Inaccurate readings will result when measuring shiny or polished surfaces To compensate cover the surface under test with masking tape or flat black paint Allow time tor the tape to reach the same temperature as the material underneath then measure the temperature of the tape or the painted surface 8 HOGODEU v2 0 4 08 Thermal Emissivity Table for Common Materials Mater Emissivity Mater Emissivity Asphalt 0 90 to 0 98 Cloth black 0 98 Concrete 094 Human skin 0 98 Cement 0 96 Leather 0 75 to 0 80 Sand 0 90 Charcoal powder 0 96 Earth 0 92 to 0 96 Lacquer 0 80 to 0 95 Water 0 67 Lacquer matt 0 97 lce 0 96 to 0 98 Rubber black 0 94 Snow 0 83 Plastic 0 85 to 0 95 Glass 0 85 to 1 00 Timber 0 90 Ceramic 0 90 to 0 94 Paper 0 70 to 0 94 Marble 0 94 Chromium oxides 0 81 Plaster 0 80 to 0 90 Copper Oxides 0 78 Mortar 0 89 to 0 91 Iron Oxides 0 78 to 0 82 Brick 0 93 to 0 96 Textiles 0 90 HOSODEU v2 0 4 08 Useful Equations and Conversions AREA equation for rectangular or square ducts Height H Area A Width W
11. tor built into the vane assembly Surface temperature via non contact IR sensor 30 1 6 to 14um 0 95 fixed Record and Recall lowest highest and average readings Automatic shut off after 15 minutes can be disengaged USB PC Communication with supplied software and cable for data acquisition Dashes appears on the LCD Battery symbol appears on the LCD 9V Battery Meter 0 to 50 C 32 to 122 F 80 RH max Sensor 0 to 60 C 32 to 140 F Main instrument 8 0 x 3 0 x1 9 203 x 75 x 50mm Sensor head 2 8 72mm diameter 9 8 oz 280g n HOSODEU V20 4 08 Range Specifications Air Velocity Measurements m s meters per second km h kilometers per hour ft min feet per minute mph miles per hour knots nautical miles per hour Air Flow Measurements CMM cubic meters per minute CFM cubic feet per minute Temperature Air Temperature vane Surface Temperature IR Range Resolution Accuracy rdg 0 40 30 00mis 0 01 m s 3 0 20m s 1 4 108 0 kmh 0 1 km h 3 0 8km h i orm 80 5900 ft min 3 40ft min 0 9 67 0mph 0 1 mph 3 0 Am h 0 81058 0knots 0 1 knots 3 0 4knots Range Resolution Area 0 999 900 m min 0 001 0 to 999 9m 0 999 900 ft min 0 001 0 to 999 9 Range Resolution Accuracy 10 to 60 C 14 to 140 F 0 1 C F 42 C 4 F 50 to 20 C 58 to 4 F 20 to 500 C 4 to 932 F O CF 5 C 9 F
12. utton in the upper keypad area freezes the displayed vane temperature reading Press again to unlock the display 2 The HOLD button in the lower keypad area freezes the displayed air velocity or air flow measurements Press again to unlock the display 3 The HOLD indicator will appear on the LCD when the display is in Data Hold mode 5 HOGODEU v2 0 4 08 MIN MAX AVG Recording Modes The HD300 has several MIN MAX AVG modes described separately below MIN MAX AVG functions are available for all measurements made with the vane sensor air velocity air flow and air temperature Continuous Moving Average In the Continuous Moving Average mode the meter displays the continuous average of the measured readings for up to a 10 hour period Turn the meter ON Place the sensor in the air stream Press the MAX MIN button in the lower keypad area for air velocity flow Press the MAX MIN button in the upper keypad area for air temperature The meter will begin averaging readings once per second Single Point Min Max Avg In the Single Point Average Mode the meter takes a reading once per second and stores the highest lowest and average readings 1 2 8 Tum the meter ON Place the sensor in the air stream Press the MAX MIN button lower keypad area for air velocity flow upper keypad area for air temperature to enter the REC mode and display only the highest reading display will show REC MAX Press again to view the MIN value display
13. will show REC MIN Now the display will show only the lowest reading Press again to view the AVG value display will show REC AVG To return to normal operation mode press and hold the MAX MIN button until two tones are heard Multi point Average In the Multi Point Average Mode the meter averages up to 20 Air Velocity readings 1 2 Turn the meter ON Press and hold the AVG button for 2 seconds until two beeps are heard A 0 will display in the upper right hand corner of the LCD and AVG will appear on the bottom of the LCD Place the sensor in the air stream under test Press the AVG button momentarily to capture the reading a single tone will be heard and the HOLD and AVG icons will appear on the bottom of the LCD The 0 that was displayed previously will increment to 1 This number will increment with each successive press of the AVG button Take more readings up to a maximum of 20 in the same fashion as described in step 4 The LCD will display the average of all the readings taken since the multi point mode was accessed in step 2 To return to normal operation press and hold the AVG button for 2 seconds until two tones are heard To clear the stored readings after exiting the Multi point Average mode press the AREA button once 6 HOSODEU V20 4 08 Battery Replacement When the battery icon appears on the LCD the 9V battery must be replaced 1 The battery compartment is located on the rear of
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