Extech Instruments 42540a Скачать руководство пользователя | Manualshive

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User’s Manual

High Temperature InfraRed Thermometer

with Laser Pointer

MODEL 42540

A

42540

6

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Содержание 42540a

Страница 1: ...User s Manual High Temperature InfraRed Thermometer with Laser Pointer MODEL 42540A 42540 6 ...

Страница 2: ...onsible 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 purpo...

Страница 3: ...IR Sensor 3 Measurement Trigger 4 Battery and Switch Compartment 5 LCD Display 6 Push buttons 7 Handle Grip 8 Temperature Units ºC ºF Switch 9 Test Lock ON OFF Switch 10 Alarm ON OFF Switch Note There is a tripod mount on the bottom of the handle 1 2 3 4 42540 6 5 6 7 8 9 10 ...

Страница 4: ...ally shut off The only exception to this is if the TEST LOCK switch is set to ON Note Select the temperature units ºF ºC using the top switch inside the battery compartment Backlight Laser Pointer 1 While pulling the Trigger push the backlight laser button once to turn on the backlight 2 Press it again to turn on the laser pointer When the laser is ON the laser icon will appear in the LCD 3 Press ...

Страница 5: ...ge value In the AVG mode all of the readings in the current measurement session are averaged and the value is displayed HAL High Alarm setting The temperature that when exceeded causes the audible visual alarm to trip LAL Low Alarm setting The temperature that when exceeded high to low causes the audible visual alarm to trip High and Low Alarm Feature The Model 42540a has an alarm feature whereas ...

Страница 6: ...ust to the temperature of the surface it is covering 4 Measurements through transparent surfaces such as glass may not be accurate 5 Steam dust smoke etc can obscure measurements 6 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 7 To find a hot spot aim the meter outside the area of int...

Страница 7: ...r a flat black finish For the Model 42540a 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 0 90 to 0 98 Cloth black 0 98 Concrete 0 94 Skin human 0 98 Cement 0 9...

Страница 8: ...ter 932 o F 500 o C 2 5 of reading 5 o 932 o F 500 o C Note Accuracy is specified for the following ambient temperature range 64 to 82 F 18 to 28 C Emissivity Adjustable from 0 1 to 1 00 0 95 default value Field of View D S Approx 16 1 ratio D distance S spot Laser power Less than 1mW Spectral response 6 to 14 µm wavelength General Specifications Display 4 digit backlit LCD display with function i...

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