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Specifications

7

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-
tive temperature coefficient) sensor

Meter power

Three (3) 1.5 V (AAA) batteries

Dimensions

6.4 x 2.2 x 1.1 in. (163 x 55 x 28 mm)

Weight

4.2 oz. (118 g)

7.2

Measurement Specifications

Accuracy specifications apply for the following conditions: Temperature:
73.4

± 9

(23

± 5

); Relative Humidity:

80 %

Air Velocity ranges

Resolution

Accuracy (% of reading)

1.5 to 30 m/s (meters per second)

5.4 to 108 km/h (kilometres per hour)

2.9 to 58 knots

3.3 to 67 mph (miles per hour)

295.2 to 5905 ft/min (feet per minute)

1 to 12 Beaufort scale (bft)

0.1 m/s

0.1 km/h

0.1 knots

0.1 mph

0.1 ft/min*

1 bft

*up to 999.9

± (5% + 0.5 digits) m/s

± (5% + 15 digits) km/h

± (5% + 10 digits) knots

± (5% + 10 digits) mph

± (5% + 180 digits) ft/min

± 1 bft

Note: m/s is the standard unit. All other units are calculated from the m/s value.

Air Temperature range

Resolution

Accuracy

14 to 122

(-10 to 50

)

0.2

(0.1

)

± 4

(± 2

)

#NAS100075; r. AA/78827/78827; en-US

10

Summary of Contents for 250W Series

Page 1: ...User Manual AN250W Anemometer 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 AVG Readings 7 5 8 Bluetooth Operation 8 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 11 7 4 Connectivity Specifications 11 8 Two year Warranty 12 8 1 Calibration and Repair Services 12 8 2 ...

Page 3: ... The meter includes Bluetooth connectivity MAX AVG memory selectable units of measure auto power off data hold backlit LCD and a 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 q...

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: ...ress to switch off With the meter powered long press to switch Bluetooth on off Short press to switch the meter off directly from the Bluetooth mode MAX AVG button Short press to cycle through MAX AVG readings MAX AVG 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 p...

Page 7: ...itch 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 Maximum reading 2 Average reading 3 Data Hold mode 4 Low battery symbol 5 Air Velocity measurement and units 6 Temperature reading and units 7 Bluetooth active 8 Auto Power Off APO symbol 9 Beaufort scale abbreviation 10 Beaufort measurement scale 1 to 12 NAS100075...

Page 8: ...wer 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 with the vane positioned in the flow of air Allow the air to enter the vane from the back of the meter T...

Page 9: ...Data Hold Function Short press the Data Hold H button to freeze unfreeze the displayed read ings While Data Hold is active HOLD will appear on the LCD 5 6 LCD Backlight Long press the backlight button to switch the display backlight on or off Excessive use of the backlight will shorten battery life 5 7 MAX AVG Readings When the device is switched on it begins tracking the highest MAX and average A...

Page 10: ... Download the mobile app from the App Store for iOS devices or from Google Play for Android devices Instructions for mobile app use are available from the ExView product page on the Extech website link below http www extech com Switch APO off when using Bluetooth by pressing and holding the power and H buttons for 2 seconds the APO symbol will switch off This will pre vent the meter from automatic...

Page 11: ...an 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 dispose ...

Page 12: ...t 4 2 oz 118 g 7 2 Measurement Specifications Accuracy specifications apply for the following conditions Temperature 73 4 9 23 5 Relative Humidity 80 Air Velocity ranges Resolution Accuracy of reading 1 5 to 30 m s meters per second 5 4 to 108 km h kilometres per hour 2 9 to 58 knots 3 3 to 67 mph miles per hour 295 2 to 5905 ft min feet per minute 1 to 12 Beaufort scale bft 0 1 m s 0 1 km h 0 1 k...

Page 13: ...ns 32 to 104 0 to 40 80 RH Storage conditions 4 to 140 20 to 60 75 RH Drop proof rating 3 3 ft 1 m 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 NAS100075 r AA 78827 78827 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 ...

Page 15: ......

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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