Extech AN25 Manual

Extech Måleudstyr AN25

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User Manual - Model AnemometerAN25 - Hygro Thermo-
AN25-en-GB_V1.4 3/17
Introduction
Thank you for selecting the Extech Model Hygro Thermo AN25 -
Anemometer. Please visit our website (www.extech.com) to check for
the latest versi tomer Careon of this User Guide or to contact Cus .
Operation
Switching the Meter ON/OFF
• Press the POWER to switch button the meter ON
• Press and hold POWER for approx. 3 seconds to switch OFF
• The meter’s Auto Power OFF feature turns the meter OFF after 15
minutes of inactivity
Changing the Air Velocity Units
With the meter in air flow measurement mode press HOLD for approx. 3
seconds to change air flow units from m/s, KMH, M/H, FPM, BFT, KNT
and then back to m/s. See Specifications for icon definitions.
Change odes and Temperature unitsM
• Press MODE button to select the desired mode: WNCL (wind-chill),
TEMP, RH, ) ) ) HI (heat index , DP (dew point , wet bulbWB ( , WBGT (wet
bulb globe), and back to m/s.
• From any temperature mode press the HOLD button to change
temperature . units (°C / °F)
MAX/AVG Mode
• With the meter ON press the POWER button. The MAX icon will
display on the LCD with the highest reading. (maximum)
• Press POWER again. The AVG (average) icon will display on the LCD.
Press the POWER button to step through the averaging time
selections (5sec, 10sec, and to 13sec). After selecting the averaging
time the meter will begin averaging readings.
• To exit the MAX/AVG mode, repeatedly press the POWER button until
MAX and AVG icons switch OFF.
Data Hold
• Press the HOLD button to freeze the displayed reading. The HOLD icon
will appear on the display.
• Press LD HO button again to return to normal operating mode.
Auto Power OFF
• The meter will power OFF after about 15 minutes of inactivity.
• To disable Auto Power OFF: With the meter switched OFF, press the
HOLD and POWER buttons until the meter switches ON.
• The 'n' icon will be displayed on the LCD and the meter will return to
normal operating mode.
• Now the meter will not switch OFF until the user manually switches it
OFF. Note that on the next cycle of power, the meter will revert to the
Auto Power OFF mode.
Error Messages
Er1: Sensor Error (replace unit); Er2: Measurement out of range
Important Note: If the meter is placed source of electricity the near a
electrical signal may affect the meter’s displayed reading.
Meter Description
1 Vane impeller
2 Relative Humidity & Temperature sensors
3 LCD display
4 POWER button
5 HOLD button
6 MODE button
7 Battery compartment (on rear)
8 Tripod mounting hole
9 Impeller set screw (on side)
Specifications
Measurements
Range
Resolution
Accuracy
m/s (meters per second)
0.40 to 25 m/s
0.1 m/s
± (3%FS)
FPM (feet per minute)
80 to 999 ft/min
0.1 ft/min
1000 to 4922 ft/min
1 ft/min
KMH (kilometers per hour)
1.4 to 90.0 km/hr
0.1 km/hr
M/H (miles per hour)
0.9 to 55.9 mph
0.1 mph
BFT (beaufort)
0 10 to
1 BFT
± 1 BFT
KNT (knots)
0.8 to 48.6 knots
0.1 knots
± (3%FS)
Temp./WNCL (Wind- chill)
-15 to 50
o
C (5 to 122
o
F)
0.1
o
C/F
± 1
o
C (± 1.8
o
F)
RH (relative humidity)
5 to 95% RH
0.1% RH
± 3% RH *
WB (wet bulb)
-15 to 50
o
C (5 to 122
o
F)
0.1
o
C/F
Calculation
D P (dew point)
-75 to 50oC (- 103 to 122oF)
0.1oC/F
HI (heat index)
-35 to 205oC (- 31 to 401oF)
0.1oC/F
WBGT (wet bulb globe)
- 29 to 54oC (-20 to 130o
F )
0.1oC/F
*@25oC 10-90%RH otherwise ±5%RH
General Specifications
Display
28 x 14mm (1.1 x 0.5”) LCD with low battery &
multifunction indicators
Max/Avg/ Hold Modes
Max shows highest reading; AVG averages readings;
Data Hold freezes the display
Operating conditions
0 to 50oC (32 to 122oF ) / < 80% RH
Power supply
Lithium battery (CR- 2032 or equivalent)
Dimensions/weight
152 x 40 x 18mm (6.0 x 1.6 x 0.7”); 60g (2.1 oz.)
Battery Replacement
The meter has a low battery ind Important: Turn the meter icator (BAT).
off before opening the battery compartment Using a coin, t. urn the
battery compartment cover CLOCKWISE to remove it. Once C -OUNTER
opened, e position of the battery the new one in the observe th , placing
same position. Secure the battery co ispose of mpartment cover and d
the lithium battery in accordance with local, state, or national disposal
codes.
Never dispose of used batteries or rechargeable batteries
in household waste.
As consumers, users are legally required to take used
batteries to appropriate collection sites, the retail store
where the batteries were purchased, or wherever
batteries are sold.
Disposal: Do not dispose of this instrument in household waste. The
user is obligated to take end of life devices to a designated collection - -
point for the disposal of electrical and electronic equipment.
Impeller Replacement
The replacement part number for the impeller kit is AN25-V (two
impellers are supplied). Loosen and remove the impeller set screw (9)
and then, from the back of the meter, turn the impeller counter-
clockwise to remove. Insert new impeller and turn it clockwise to lock
it. Insert and tighten the impeller set screw to complete the
replacement.
Copyright 2017© -2013 FLIR Systems, Inc.
All rights reserved including the right of reproduction in whole or in part in any form
ISO- 9001 Certified
www.extech.com

Produkt Specifikationer

Mærke: Extech
Kategori: Måleudstyr
Model: AN25

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