background image

 

42511  V4.2   2/08 

11

 

Support line (781) 890-7440 

Technical support: Extension 200; E-mail: [email protected] 

Repair & Returns: Extension 210; E-mail: [email protected] 

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 

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. 
 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Copyright 

©

 2008 Extech Instruments Corporation 

All rights reserved including the right of reproduction in whole or in part in any form. 

 

Summary of Contents for 42511

Page 1: ...User s Manual Dual Laser InfraRed IR Thermometer MODEL 42511 ...

Page 2: ... 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 warranty does not apply to defects resulting from action of the user such as misuse improper wi...

Page 3: ... Switch compartment DISPLAY 1 SCAN measurement in progress 2 HOLD last measurement locked in display 3 Laser pointer active 4 Power locked ON 5 High limit alarm 6 Low limit alarm 7 C or F temperature units 8 Main temperature display 9 Low battery icon 10 MAX icon 11 Emissivity setting 12 Emissivity icon 13 Max temperature display ...

Page 4: ...42511 V4 2 2 08 4 ...

Page 5: ...distances are shown in the field of view diagram illustrated below and on the side of the meter Measurements should normally be made as close to 12 as possible to the device under test The meter can measure from greater 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 D...

Page 6: ...42511 V4 2 2 08 6 ...

Page 7: ...ons The MODE button is used to access the Test Lock High alarm Low alarm and Emissivity adjustment 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 E Emissivity Value Press the or button to change the emissivity value Test Lock mode On ...

Page 8: ...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 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 Over range Indication If the temperature measu...

Page 9: ...tted 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 ran...

Page 10: ...ld of View D S Approx 12 1 ratio D distance S spot or target Laser pointer Dual Class 2 laser 1mW power Wavelength is 630 to 670nm IR Spectral response 8 to 14 µm wavelength Repeatability 0 5 of reading or 1 8 o F 1 o C whichever is greater General Specifications Display Backlit LCD display with function indicators Response time 150ms Over range indication Operating Temperature 32 o F to 122 o F 0...

Page 11: ...tech Instruments Corporation 285 Bear Hill Rd Waltham MA 02451 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 ...

Reviews: