Extech Instruments LT250W User Manual Download Page 13 | Manualshive

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Specifications

7.4

Connectivity Specifications

Connectivity

Bluetooth (with ExView app)

ExView app compatibility

iOS 13.0 and Android 9.0 or higher

Transmission distance

Up to 295.3 ft. (90 m) with no line-of-sight obstruction

#NAS100076; r. AA/78957/78963; en-US

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Summary of Contents for LT250W

Page 1: ...User Manual LT250W Light Meter Bluetooth Connectivity with the ExView Mobile App ...

Page 2: ...Measurement Units 7 5 5 Data Hold Function 7 5 6 LCD Backlight 7 5 7 MAX MIN Readings 7 5 8 Bluetooth Operation 7 6 Maintenance 9 6 1 General Cleaning 9 6 2 Battery Replacement 9 7 Specifications 10 7 1 General Specifications 10 7 2 Measurement Specifications 10 7 3 Environmental Specifications 10 7 4 Connectivity Specifications 11 8 Two year Warranty 12 8 1 Calibration and Repair Services 12 8 2 ...

Page 3: ... auto power off data hold backlit LCD and tripod mount Using the Extech ExView mobile app you can pair your smart devices with the meter using Bluetooth The app and the W Series meters were developed together for seamless integration Download the free app from the App Store iOS or from Google Play Android This quality instrument is designed to provide years of reliable service high accuracy and si...

Page 4: ...en the meter housing or access the sensor module There are no user serviceable components in this device Replace the batteries immediately after the low battery symbol appears If the device is to be stored for a period of months please remove the batteries and store separately Do not store the device in high temperature or humidity environments in flammable or combustible areas or where a strong e...

Page 5: ...ticular installation If this equipment does cause harmful interference to radio or television recep tion which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures 1 Reorient or relocate the receiving antenna 2 Increase the separation between the equipment and receiver 3 Connect the equipment into a...

Page 6: ...ch off With meter powered long press to switch Bluetooth on off Short press to switch the meter off directly from the Bluetooth mode MAX MIN button Short press to cycle through MAX MIN readings MAX MIN memories are cleared each time meter power is cycled Data Hold Backlight button Short press to freeze unfreeze the displayed reading HOLD will display when data hold is active Long press to switch t...

Page 7: ...r on long press the power and H buttons to switch APO on off The APO symbol is displayed when APO is enabled APO is reset each time the meter power is cycled 4 3 Display Symbols 1 Bluetooth active 2 Illuminance measurement 3 Maximum and Minimum reading modes 4 Data Hold 5 Low battery symbol 6 Unit of measure symbols 7 x10 and x100 indicators multiply reading NAS100076 r AA 78957 78963 en US 5 ...

Page 8: ...ng press the power and data hold H buttons The APO symbol will switch off indicating that the function is disabled APO is reset each time the meter s power is cycled Repeat this process to switch APO back on manually 5 3 Taking Measurements 1 Long press the power button to switch the meter on 2 Hold the meter in hand set it face up on a table or desk or mount it on a tripod in the area under test ...

Page 9: ...N button to step through the MAX MIN memories MAX will show when the Maximum reading is displayed and MIN will show when the Minimum reading is displayed The memories are cleared each time the meter power is cycled Press the MAX MIN button again to exit this mode MAX and MIN symbols switch off when you exit 5 8 Bluetooth Operation Long press the Bluetooth button with the meter on to switch Bluetoo...

Page 10: ... pressing and holding the power and H buttons for 2 seconds the APO symbol will switch off This will pre vent the meter from automatically switching off while you are logging data or monitoring readings in real time on your smart device NAS100076 r AA 78957 78963 en US 8 ...

Page 11: ...to clean this device 6 2 Battery Replacement This device is powered by three 3 1 5 V AAA batteries When the low bat tery symbol appears replace the batteries immediately as explained below 1 Switch the meter off and remove the rear battery compartment cover 2 Replace the batteries observing correct polarity Always use batteries of the same type 3 Secure the battery compartment before use Do not di...

Page 12: ... Specifications Accuracy specifications apply for the following conditions Temperature 73 4 9 23 5 Relative Humidity 80 Illuminance ranges Resolution Accuracy of reading 0 to 9999 Lux 10 000 Lux 100 000 Lux 1 Lux 10 Lux 100 Lux 4 8 digits 5 10 digits 5 10 digits Notes The total range is 0 to 199 900 Lux Foot candle Fc readings are converted from Lux measurements Readings above 9999 are accompanied...

Page 13: ...vity Specifications Connectivity Bluetooth with ExView app ExView app compatibility iOS 13 0 and Android 9 0 or higher Transmission distance Up to 295 3 ft 90 m with no line of sight obstruction NAS100076 r AA 78957 78963 en US 11 ...

Page 14: ...we sell We offer NIST traceable calibration for most of our products Contact us for information on calibration and repair availability refer to the contact information below Annual calibrations should be performed to verify meter performance and accuracy Product specifications are subject to change without notice Please visit our website for the most up to date prod uct information www extech com ...

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Page 16: ...ort flir com Copyright 2021 FLIR Systems Inc All rights reserved worldwide Disclaimer Specifications subject to change without further notice Models and accessories subject to regional market considerations License procedures may apply Products described herein may be subject to US Export Regulations Please refer to exportquestions flir com with any questions User Manual ...

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