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Users Manual

I5771

Non-contact Infrared Thermometer

Read this manual thoroughly before use

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Summary of Contents for I5771

Page 1: ...Users Manual I5771 Non contact Infrared Thermometer Read this manual thoroughly before use ...

Page 2: ...es Precise non contact measurements High distance to target ratio D S 12 1 Wide measurement range 50 C to 1350 C 58 F to 2462 F Durable construction Built in laser pointer Automatic data hold C F switchable Emissivity adjustable from 0 1 to 1 0 MAX MIN DIF AVG temperature displays Backlit display Resolution 1000 C F 0 1 C 0 1 F 1000 C F 1 C 1 F High and low alarm Application Food safety and fire i...

Page 3: ...id possible personal injury follow these guidelines 1 Before using the thermometer inspect the case Do not use the thermometer if it appears damaged Look for cracks or missing plastic 2 When the low battery indicator appears replace the battery immediately 3 Do not use the thermometer if it operates abnormally When in doubt have the thermometer serviced 4 Do not operate the thermometer where explo...

Page 4: ...3 Do not leave the thermometer on or near objects of high temperature 3 WAVELENGTH 630nm 670nm As the distance D from the object being measured increases the spot size S of the area measured by the thermometer becomes larger This relationship between distance and spot size is normally expressed as the distance to spot or D S ratio which is shown in FIELD OF VIEW 6 Do not point the laser beam towar...

Page 5: ...ld be to it When accuracy is critical make sure that the object is at least twice as large as the spot size Spot Center Distance 3 36 2 24 1 12 Distance to Spot size 12 1 the following figure At a distance of 12 inches the spot size would be 1 inch in diameter The thermometer will display the average temperature across the spot area ...

Page 6: ...Accuracy specification assumes that the ambient operating temperature is 18 C to 28 C 64 F 82 F and the operating relative humidity is less than 80 Response Time 1 sec Spectral Response 8µm to 14µm Emissivity Adjustable from 0 1 to 1 0 0 95 default value Operating Environment Temperature 0 C to 40 C Relative humidity 10 to 95 RH noncondensing up to 30 C Storage Temperature 20 C to 50 C Weight abou...

Page 7: ... MODE Button 7 Handle 8 Built in M6 Nut 9 Battery Cover 10 Measurement Trigger 11 Button Tip You can fix the thermometer on a suitable support which has a M6 bolt to be mated with the thermometer s built in M6 nut 8 of above figure 1 2 3 4 5 6 9 11 7 10 STRUCTURE 8 ...

Page 8: ...shes when the thermometer is making measurement 4 Emissivity display which shows the present emissivity setting value Tip The symbol means Emissivity 5 Backlight indicator which appears when the backlight is on 6 Temperature unit which applies to both the main display and the bottom display 7 Symbols used to indicate what kind of value is being displayed LCD INSTRUCTION 2 3 4 5 6 7 8 9 7 1 11 10 ...

Page 9: ...erence DIF average AVG high alarm value HAL and low alarm value LAL 9 is high alarm icon and is low alarm icon 10 Low battery indicator Replace the battery immediately when this low battery indicator appears 11 Laser function indicator which appears when the laser function is enabled When this indicator appears the laser pointer will emit laser beam if you pull the trigger BUTTON INSTRUCTIONS ...

Page 10: ...setting emissivity high alarm value HAL or low alarm value LAL press this button to decrease the value to be set 4 MODE Button Each time you pull the trigger to make measurements the thermometer records the maximum MAX minimum MIN the differential DIF between the maximum and the minimum and the average AVG of all readings taken during this pull These data are stored in memory and can be recalled w...

Page 11: ...ll be restored to default values and all the recorded measurement data will be erased from memory release the trigger the last reading is locked until you make new measurement or the thermometer turns off automatically You can press the MODE button to display the maximum MAX average AVG minimum MIN difference DIF low alarm value LAL and high alarm value HAL sequentially on the bottom display The p...

Page 12: ...cating that the last reading is locked 4 The thermometer will turn off automatically if you have not operated the thermometer for about 30 secs Note 1 Make sure that the target surface is larger than the thermometer s spot size The smaller the target surface the closer you should be to it see the FIELD OF VIEW section When accuracy is critical make sure the target is at least twice as large as the...

Page 13: ...measure the surface temperature of the glass instead 3 Steam dust smoke etc can prevent accurate measurement by interfering with the energy emitted from the target Target Area While holding trigger down Setting the High Alarm and Low Alarm 1 After the thermometer has been turned on press and hold down the MODE button until the symbol flashes then release the button 2 Press the MODE button until LA...

Page 14: ...n you press and hold the trigger If the temperature of target surface reaches or is higher than the high alarm value will appear and flash and the buzzer will beep when you press and hold the trigger 6 At any time you can press and hold down the MODE button to exit setting mode Note 1 To read value correctly observe the bottom display carefully to see whether the negative sign and decimal point ap...

Page 15: ...ture of the tape or painted surface Emissivity Values Water Ice Lacquer matt Rubber black 0 92 0 96 0 96 0 98 0 97 0 94 Substance Emissivity Substance Emissivity Asphalt Concrete Cement Sand Earth Cloth black Human skin Lather Charcoal powder Lacquer 0 90 0 98 0 94 0 96 0 90 0 92 0 96 0 98 0 98 0 75 0 80 0 96 0 80 0 95 Mortar Brick Copper oxides Textiles 0 89 0 91 0 93 0 96 0 78 0 82 0 90 Marble P...

Page 16: ...ty setting value 3 When you finish emissivity setting press and hold down the MODE button until the symbol stops flashing The thermometer returns to normal operation MAINTENANCE To Clean the Lens Blow off loose particles using clean compressed air Carefully wipe the surface with a moist cotton swab The swab may be moistened with water Don t use abrasive or solvent To Clean the Case Use soap and wa...

Page 17: ...icated in the following figure Replace the exhausted battery with a new one of the same type Close the battery cover BATTERY REPLACEMENT NOTE 1 This manual is subject to change without notice 2 Our company will not take the other responsibilities for any loss 3 The contents of this manual can not be used as the reason to use the thermometer for any special application Open the battery cover here ...

Page 18: ... intend to dispose of this article then please keep in mind that many of its components consist of valuable materials which can be recycled Please do not discharge it in the garbage bin but check with your local council for recycling facilities in your area 17 ...

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