Extech Instruments 42525A User Manual Download | Manualshive

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User’s Manual

InfraRed Thermometer with Laser Pointer

MODEL 42525A

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Summary of Contents for 42525A

Page 1: ...User s Manual InfraRed Thermometer with Laser Pointer MODEL 42525A ...

Page 2: ...orkmanship for one year from date of shipment a six month limited warranty applies to 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 www extech com for contact information A Return Authorization RA number must be issued b...

Page 3: ...Resolution 4 to 752o F 20 to 400o C 0 1o C F Accuracy 3 of reading or 6o F 3o C whichever is greater Accuracy notes 1 Accuracy specified for readings between 10 and 350o C 2 Accuracy specified for ambient temperature 23o C 5o C 3 Accuracy specified for an emissivity of 0 95 4 Accuracy tested using 2 25 diameter black body at a distance of 6 5 Testing environment RF field strength 3 V M and frequen...

Page 4: ...also the DOWN button Used to access the RELATIVE mode of operation Also used as the DOWN arrow button for setting the emissivity Record button Used when viewing the MAX and MIN readings Data Hold button Used to freeze the displayed reading 3 POWER button Turns meter ON or OFF 4 IR Type K button Selects IR non contact or Type K contact operation 5 RS 232 PC Interface jack 6 IR Sensor 7 Laser pointe...

Page 5: ...Measurement Considerations 1 The 42525A automatically compensates for ambient temperature deviations however it may take up to 30 minutes to adjust to extremely wide ambient temperature changes 2 When low temperature measurements are taken followed by high temperature measurements several minutes are required for stabilization before the high temperature measurements can be made accurately 3 Measu...

Page 6: ... emissivity 3 Press and hold the Emissivity button until the display stops flashing to exit Emissivity Factors for Common Materials Material under test Emissivity Material under test Emissivity Asphalt 0 90 to 0 98 Cloth black 0 98 Concrete 0 94 Skin human 0 98 Cement 0 96 Lather 0 75 to 0 80 Sand 0 90 Charcoal powder 0 96 Soil 0 92 to 0 96 Lacquer 0 80 to 0 95 Water 0 92 to 0 96 Lacquer matt 0 97...

Page 7: ...e held down correctly While continuing to hold down the two keys press the UP or DOWN buttons to set the offset value on the larger digits Release all keys to return to normal operation Type K Thermocouple Measurement Procedure 1 Connect a Type K Thermocouple to the temperature input jack on the meter 2 Power the meter by pressing the POWER button 3 Use the IR TYPE K button to select Type K mode d...

Page 8: ...he battery compartment cover Cleaning Wipe meter with a damp cloth when necessary A mild detergent may be used but avoid solvents abrasives and harsh cleansers Do not allow moisture inside the meter Storage Remove the battery if the meter is to be stored for long periods Do not store the meter in an environment that exceeds the published operating temperature and humidity specifications Calibratio...

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