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Summary of Contents for Extech Instruments 250W Series
- Page 1 User Manual AN250W Anemometer Bluetooth ® Connectivity with the ExView ® Mobile App...
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Page 2: Table Of Contents
Table of contents Introduction................1 Safety ................2 FCC Compliance ..............3 Product Description ............4 Meter Description ............4 Function Buttons ............4 Display Symbols............5 Operation ................6 Powering the Meter ............. 6 Auto Power Off (APO)..........6 Taking Measurements ..........6 Changing Measurement Units ........7 Data Hold Function ............. -
Page 3: Introduction
Introduction Thank you for selecting the Extech AN250W Anemometer. This meter meas- ures air velocity and temperature. The vane, situated at the top of the meter, measures the velocity of moving air and includes a sensor that measure air temperature. The air velocity and temperature readings are shown on the top and bottom rows of the LCD, respectively. -
Page 4: Safety
Safety Please read all safety information before using this device CAUTION • Check for damage to the device’s housing, sensor, display, and battery compartment before use. If obvious damage or abnormalities are noticed, please discontinue use and return the device for service. •... -
Page 5: Fcc Compliance
FCC Compliance This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. -
Page 6: Product Description
Product Description 4.1 Meter Description 1. Vane anemometer with temperature sensor 2. Backlit LCD (detailed below) 3. Function buttons (detailed below) 4. Tripod mount 5. Battery compartment 4.2 Function Buttons Power / Bluetooth button Long press to switch the device on. Short press to switch off. With the meter powered, long press to switch Bluetooth on/off. -
Page 7: Display Symbols
Product Description Unit of Measure button Short press to select air velocity units: m/s, km/h, ft/min, mph, knots. Long press to toggle the temperature units: ℃ / ℉. APO ON/OFF With the meter on, long press the power and (H) buttons to switch APO on/off. -
Page 8: Operation
Operation 5.1 Powering the Meter The meter operates on three (3) 1.5 V (AAA) batteries, installed in the rear compartment. Long press the power button to switch the meter on. Short press the power button to switch the meter off. If the meter does not switch on, check the bat- teries for proper orientation. -
Page 9: Changing Measurement Units
Operation CAUTION Do not touch or otherwise obstruct the sensor area. Do not allow liquids to come in contact with the sensor. Avoid overly dusty environments. Magnetic induction can affect the sensor’s ability to operate correctly. Keep the sensor away from magnetic fields. 5.4 Changing Measurement Units To step through the air velocity units menu, short press the UNIT button. -
Page 10: Bluetooth Operation
Operation 5.8 Bluetooth Operation Long press the Bluetooth button with the meter on, to switch Bluetooth on or off. This communication symbol is shown when Bluetooth is on. The Bluetooth utility allows you to remotely monitor readings on an iOS or An- droid smart device using the Extech ExView mobile app designed for use with this meter. -
Page 11: Maintenance
Maintenance CAUTION Warning: Do not open the housing or sensor module. Service should only be performed by factory personnel, there are no user-serviceable components in this device. 6.1 General Cleaning Wipe the housing with a dry cloth as necessary to clean. Do not use abrasives or solvents to clean this device. -
Page 12: Specifications
Specifications 7.1 General Specifications Display 4 digit (9999) backlit multifunction LCD Over range indication OL is displayed when air velocity or air temperature measurements exceed the specified measurement range Low battery indication Battery symbol appears when batteries are low Reading update rate Two readings per second Sensor types Magnetic induction wind speed sensor and NTC (nega-... -
Page 13: Environmental Specifications
Specifications 7.3 Environmental Specifications For indoor use only Altitude 6562 ft. (2000 m) maximum Pollution degree Operating conditions 32 to 104℉ (0 to 40℃); ≦ 80% RH Storage conditions -4 to 140℉ (-20 to 60℃); ≦ 75% RH Drop-proof rating 3.3 ft. -
Page 14: Two-Year Warranty
Two-year Warranty FLIR Systems, Inc. warrants this Extech brand instrument to be free of defects in parts and workmanship for two years from date of shipment (a six- month limited warranty applies to sensors and cables). To view the full war- ranty text please visit: http://www.extech.com/support/warranties. - Page 16 User Manual last page Website http://www.flir.com Customer support http://support.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.
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