Opration Manual
Contents
1. 0 30 5cm 10cm orm 122cm 6 42510A V3 2 9 08 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 the Model 42510A 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 Emissivity Material under test _ Emissivity Asphalt Concrete Cement Sand Soil Water Ice Snow Glass Ceramic Marble Plaster Mortar Brick 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 0 83 0 90 to 0 95 0 90 to 0 94 0 94 0 80 to 0 90 0 89 to 0 91 0 93 to 0 96 Cloth black Skin human Leather Charcoal powder Lacquer Lacquer matt Rubber black Plastic Timber Paper Chromium Oxides Copper Oxides Iron Oxides Textiles 0 982. 80 RH storage Storage Temperature 14 to 140 F 10 to 60 C Power Supply 9V battery Automatic Power Off 7 seconds with LOCK to disable Weight 6 4 oz 180g Dimensions 3 2 X 1 6 x 6 3 82 x 42 x 160mm 8 42510A V3 2 9 08 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 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 2008 Extech Instruments Corporation a FLIR company All rights reserved including the right of reproduction in whole or in part in any form 9 42510A V3 2 9 08 10 42510A V3 2 9 08
3. or off 3 The backlight will illuminate the LCD when the feature is enabled The status of the backlight will be stored in memory and will remain as the ON condition until changed 5 Note The backlight will shorten the battery life use sparingly and only as necessary Over range Indication If the temperature measurement exceeds the specified temperature range the thermometer will display dashes in place of a temperature reading 4 42510A V3 2 9 08 The MODE button options The MODE button is used to access the emissivity adjustment unit of measure selection MAX MIN feature test lock feature and high low alarms 1 Press and release the trigger 2 While HOLD is on the display press the MODE button to enter the programming mode and to step through and configure the following features A blinking icon indicates the feature is selected Emissivity Value Press the A or V buttons to change the emissivity value from 0 10 to 1 00 C F Units of Measure Use the A and VY buttons to select the unit of measure MAX MIN highest and lowest reading memory Press the A or W buttons to select MIN or MAX display Lock mode On Off Press the A or V buttons to turn the lock feature ON or OFF teH High Alarm On Off Press the A or V buttons to turn the High Alarm feature ON or OFF teH High Alarm setting Press the A or V buttons to set the high alarm limit value in the main display Le Low Alarm On Off Press the A o
4. 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 Battery Replacement When the low battery symbol 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 the 9V battery and close the battery compartment cover 7 42510A V3 2 9 08 Specifications Range Resolution 0 1 resolution from 58 0 to 999 9 F 50 0 to 650 0 C 1 resolution from 1000 F to 1200 F Accuracy 58 F to 31 F 50 C to 35 C F 4 C 31 F to 28 F 35 C to 2 C F 3 C 28 F to 200 F 2 C to 94 C 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 1200 F 426 C to 650 C 2 0 rdg 2 F 1 C Note Accuracy is specified for the following ambient temperature range 64 to 82 F 18 to 28 C D S Approx 12 1 ratio D distance S spot or target Class 2 laser lt 1mW power Wavelength 630 to 670nm 0 5 of reading or 1 8 F 1 C whichever is greater General Specifications Display Backlit LCD display with function indicators Response time 300ms Over range indication Operating Temperature 32 F to 122 F 0 C to 50 C Operating Humidity 10 to 90 RH operating lt
5. User s Manual EXT INSTRUMENTS A FLIR COMPANY Wide Range Mini InfraRed Thermometer with Laser Pointer MODEL 42510A Introduction Congratulations on your purchase of the Model 42510A IR Thermometer This Infrared thermometer measures and displays non contact temperature readings up to 1200 F 650 C The adjustable emissivity feature allows the IR thermometer to measure the temperature of virtually any surface The built in laser pointer increases target accuracy while the backlit LCD and handy push buttons combine for convenient ergonomic operation Operational functions include adjustable emissivity high low alarms MIN MAX memory and trigger lock test mode This instrument is fully tested and calibrated prior to delivery 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 return
6. ed to Extech The sender is responsible for shipping charges freight insurance and proper packaging to prevent damage in transit This 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 L 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 porehiially EXMOSIVA areas 1 mW Mer aay an nm CLASS II LASER PRODUCT 2 42510A V3 2 9 08 Description Meter Description IR Sensor and Laser pointer LCD Display Function Buttons Measurement Trigger oo oe i Battery compartment Function buttons A Laser and A UP arrow button Y Backlight and DOWN arrow button MODE button Display Description 1 SCAN measurement in progress 2 HOLD last measurement locked in d
7. isplay 1 23456 3 Laser pointer active 4 Power locked ON 5 High limit alarm I I 1 1 C 6 Low limit alarm he hw hw F 7 C or F temperature units LLN 8 Main temperature display MAX 9 Low battery icon Nooo 10 MAX or MIN icon ONI 11 Emissivity setting 13 12 11 12 Emissivity icon 13 MAX or MIN temperature display 3 42510A V3 2 9 08 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 will change as the user scans various targets 3 The SCAN icon remains on until the user releases the trigger When the trigger is released the reading will hold for approximately 7 seconds HOLD will replace SCAN on the LCD after which the meter will automatically shut off The only exception to this is if the LOCK mode is set to ON Laser Pointer The Laser pointer optimizes the user s aim during scanning To turn the Laser on off 1 Press and release the Trigger 2 While HOLD is on the display press the laser button ZX once to turn the Laser on or off The laser icon A will appear in the LCD when the Laser is on The status of the Laser is remembered by the meter and will remain as the ON condition until changed Backlight 1 Press and release the trigger 2 While HOLD is on the display press the backlight button Y once to turn the backlight on
8. r V buttons to 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 Emissivity adjustment An adjustable emissivity allows for accurate measurements on a variety of surface colors textures reflectivity and finishes The topic of emissivity is covered in greater detail in a subsequent section of this guide Temperature Units The temperature units can be set to F or C in the programming mode using the A and Y buttons MAX maximum and MIN minimum Temperature display The highest reading MAX or the lowest reading MIN encountered during a single measurement scan is displayed in the lower left hand display area on the LCD Select MIN or MAX in the programming mode using the A and V buttons Lock feature The LOCK feature disables the Auto Power Off feature for the period of use when 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 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 an audible beep and a blinking LCD display icon The alarm limit is set and the feature is enabled disabled in the programming mode The setting is stored and memory and will remain as the ON condition until changed 5 42510A V3 2 9 08 IR Meas
9. urement 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 24 inches from the target spot the diameter of the target must greater than 2 inches 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 may be so large that it encompasses surface areas not intended to be measured
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