Extech 42509 Infrared Thermometer Manual PDF
Contents
1. 4 42509 V1 0 07 09 MAX maximum temperature display The highest reading encountered during a single measurement scan is displayed in the MAX display Backlight 1 Press and release the Trigger 2 While HOLD is on the display press the backlight button once to turn on the backlight on or off 3 The backlight will illuminate in the LCD when the feature is enabled The status of the backlight will be stored in memory and will remain as the turn on condition until changed 5 Note The backlight will shorten the battery life Only use this feature when required The MODE button options The MODE button is used to access the Emissivity Lock High alarm and Low alarm features of the instrument 1 Press and release the Trigger 2 While HOLD is on the display press the MODE button to step through and program the following features A blinking icon indicates the feature is selected 3 The meter will shut off and save any changes if no button is pressed for approximately 8 seconds amp Emissivity Value Press the A or V buttons to change the emissivity value Lock mode On Off Press the A or V buttons to turn the lock feature ON or OFF H High Alarm On Off Press the A or V buttons to turn the High Alarm feature ON or OFF eH High Alarm setting Press the A or V buttons to set the high alarm limit value in the main display L Low Alarm On Off Press the A or V buttons to2. 0 90 to 0 94 0 94 0 80 to 0 90 0 89 to 0 91 0 93 to 0 96 Emissivity J Material under test 0 90 to 0 98 0 94 0 96 0 90 0 92 to 0 96 0 92 to 0 96 0 96 to 0 98 Cloth black Skin human Leather Charcoal powder Lacquer Lacquer matt Rubber black Plastic Timber Paper Chromium Oxides Copper Oxides Iron Oxides Textiles Emissivity 0 98 0 98 0 75 to 0 80 0 96 0 80 to 0 95 0 97 0 94 0 85 to 0 95 0 90 0 70 to 0 94 0 81 0 78 0 78 to 0 82 0 90 42509 V1 0 07 09 Specifications 4 to 950 F 20 to 510 C 4 F to 28 F 20 C to 2 C 9 F 4 C 28 F to 200 F 2 C to 94 C 4 5 F 2 5 C 200 F to 400 F 94 C to 204 C 1 0 rdg 2 F 1 C 400 F to 800 F 204 C to 426 C 1 5 rdg 2 F 1 C 800 F to 950 F 426 C to 510 C 4 rdg 2 F 1 C Note Accuracy is specified for the following ambient temperature range 73 to 77 F 23 to 25 C 0 10 to 1 00 adjustable Field of View D S Approx 12 1 ratio D distance S spot or target Dual Class 2 laser lt 1mW power Wavelength is 630 to 670nm IR Spectral response 8 to 14 um wavelength Repeatability 0 5 of reading or 1 8 F 1 C whichever is greater General Specifications Display Response time Over range indication Operating Temperature Operating Humidity Storage Temperature Power Supply Automatic Power Off Weight Dimensions Backlit LCD display with functio
3. turn the High Alarm feature ON or OFF Le Low Alarm setting Press the A or V buttons to set the Low alarm limit value in the main display 5 42509 V1 0 07 09 Color Alert High and Low Alarm Feature The meter has a programmable high and low alarm feature When either alarm point is reached the meter will alert the user via a flashing red LED backlight as well as an audible beep and a blinking LCD display icon The alarm limit is set and the feature is enabled disabled using the MODE button The setting is stored and memory and will remain as the turn on condition until changed Temperature Units The temperature units can be set to F or C using the switch located in the battery compartment Lock feature The LOCK feature disables the Auto Power Off feature for a single period of use after the Lock mode is selected The feature is useful for long term temperature monitoring and hands free use The meter will revert to auto power off if the trigger is pressed during a locked scan Over range Indication If the temperature measurement exceeds the specified temperature range the thermometer will display dashes in place of a temperature reading Battery Replacement When the low battery symbol i appears on the display replace the meter s battery 9V The battery compartment is located behind the panel that surrounds the meter s trigger Open the compartment by pulling the panel down from the trigger area Replace t
4. User Manual EXTECH INSTRUMENTS A FLIR COMPANY Dual Laser InfraRed IR Thermometer with Color Alert MODEL 42509 TIC nor Ld wah Introduction Congratulations on your purchase of the Model 42509 IR Thermometer with Color Alert This Infrared thermometer measures and displays non contact temperature readings up to 950 F 510 C Dual laser pointers ensure accurate targeting and temperature measurement The Color Alert feature indicates when High or Low set points are exceeded The adjustable emissivity feature allows the IR thermometer to measure the temperature of virtually any surface Proper use and care of this meter will provide years of reliable service Warranty EXTECH INSTRUMENTS CORPORATION A FLIR COMPANY warrants this instrument to be free of defects in parts and workmanship for three years from date of shipment a six month limited warranty applies on sensors and cables If it should become necessary to return the instrument for service during or beyond the warranty period contact the Customer Service Department at 781 890 7440 ext 210 for authorization or visit our website at www extech com click on Contact Extech and go to Service Department to request an RA number A Return Authorization RA number must be issued before any product is returned to Extech The sender is responsible for shipping charges freight insurance and proper packaging to prevent damage in transit This
5. attery icon MAX icon Emissivity setting 13 12 11 Emissivity icon Max temperature display 3 42509 V1 0 07 09 Operating Instructions Temperature Measurements 1 Hold the meter by its handle and point it toward the surface to be measured 2 Pull and hold the trigger to turn the meter on and begin testing The temperature reading MAX temperature reading the SCAN icon the emissivity value and the unit of measure will appear 3 Release the Trigger and the reading will hold for approximately 7 seconds HOLD will appear on the LCD after which the meter will automatically shut off If LOCK mode is enabled the unit will not automatically shut off Note Select the temperature units F C using the switch inside the battery compartment Dual Laser Pointer The meter has a distance to target ratio of 12 1 The dual laser pointers are designed to indicate the 12 distance when the laser points are 1 apart The spot size at this distance is a 1 diameter This is the recommended distance for most measurements To turn the lasers on off 1 Press and release the Trigger 2 While HOLD is on the display press the laser button Z once to turn the lasers on or off The new status will appear with the next trigger pull 3 The laser icon A will appear in the LCD when the laser function is enabled 4 The status of the laser will be stored in memory and will remain as the turn on condition until changed
6. ay be so large that it encompasses surface areas not intended to be measured Calibration and Repair Services Extech offers repair and calibration services for the products we sell Extech also provides NIST certification for most products Call the Customer Service Department for information on calibration services available for this product Extech recommends that annual calibrations be performed to verify meter performance and accuracy 7 42509 V1 0 07 09 Emissivity and IR Measurement Theory IR Thermometers measure the surface temperature of an object The thermometer s optics sense emitted reflected and transmitted energy The thermometer s electronics translate the information into a temperature reading which is then displayed on the LCD The amount of IR energy emitted by an object is proportional to an object s temperature and its ability to emit energy This ability is known as emissivity and is based upon the material of the object and its surface finish Emissivity values range from 0 1 for a very reflective object to 1 00 for a flat black finish For this model the emissivity is adjustable from 0 1 to 1 00 Most organic materials and painted or oxidized surfaces have an emissivity factor of 0 95 When in doubt set the emissivity to 0 95 Emissivity Factors for Common Materials Material under test Asphalt Concrete Cement Sand Soil Water Ice Snow Glass Ceramic Marble Plaster Mortar Brick 0 83 0 90 to 0 95
7. he 9V battery and close the battery compartment cover 6 42509 V1 0 07 09 IR Measurement Notes 1 The object under test should be larger than the spot target size calculated by the field of view diagram printed on the side of the meter and in this guide Before measuring be sure to clean surfaces that are covered with frost oil grime etc If an object s surface is highly reflective apply masking tape or flat black paint to the surface before measuring Allow time for the paint or tape to adjust to the temperature of the surface it is covering Measurements through transparent surfaces such as glass may not be accurate Steam dust smoke etc can obscure measurements The meter automatically compensates for deviations in ambient temperature However it can take up to 30 minutes for the meter to adjust to extremely wide changes To find a hot spot aim the meter outside the area of interest then scan across in an up and down or side to side motion until the hot spot is located Field of View The meter s field of view is 12 1 For example if the meter is 12 inches from the target spot the diameter of the target must be greater than 1 inch Other distances are shown in the field of view diagram Measurements should normally be made as close as possible to the device under test The meter can measure from moderate distances but the measurement may be affected by external sources of light In addition the spot size m
8. n indicators 150ms 32 F to 122 F 0 C to 50 C 10 to 90 RH operating lt 80 RH storage 14 to 140 F 10 to 60 C 9V battery 7 seconds with LOCK to disable 5 7 oz 163g 5 7 X 4 x 1 6 146 x 104 x 43mm T Support line 781 890 7440 Technical support Extension 200 E mail support extech com Repair amp Returns Extension 210 E mail repair extech com Product specifications subject to change without notice For the latest version of this User s Guide Software updates and other up to the minute product information visit our website www extech com Extech Instruments Corporation 285 Bear Hill Rd Waltham MA 02451 Copyright 2009 Extech Instruments Corporation a FLIR company All rights reserved including the right of reproduction in whole or in part in any form 9 42509 V1 0 07 09 10 42509 V1 0 07 09
9. warranty does not apply to defects resulting from action of the user such as misuse improper wiring operation outside of specification improper maintenance or repair or unauthorized modification Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct indirect incidental or consequential damages Extech s total liability is limited to repair or replacement of the product The warranty set forth above is inclusive and no other warranty whether written or oral is expressed or implied Safety e Use extreme caution when the laser pointer is on e Do not point the beam toward anyone s eye or allow C AU T D N the beam to strike the eye from a reflective surface LASER RADIATION DO NOT STARE INTO BEAM e Do not use the laser near explosive gases or in other potentially explosive areas 1 mw Peat oan nm CLASS II LASER PRODUCT 2 42509 V1 0 07 09 Meter Description oo oe IS S Dual Laser pointers LCD Display Function Buttons Measurement Trigger Battery and F C Switch compartment DISPLAY Se ee eS a a a O AON ee SCAN measurement in progress HOLD last measurement locked in display 123456 nooo ep ep ep w TF UE Laser pointer active Power locked ON High limit alarm Low limit alarm C or F temperature units Main temperature display MAX Ty a LLL LOL Low b
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