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MODEL 45168CP
Introduction
Thank you for selecting the Extech 45168CP. This instrument measures Wind Speed,
Temperature, RH%, Dew Point, Wet Bulb, and Wind Chill. The built-in 360
also provides wind direction readings. Features include delta ∆T (Air Temp. minus
Dew Point), MAX/AVG wind speed, Auto Power Off, and water resistant housing.
Operation
Opening the Meter
Swivel the meter out from its protective case to a maximum 180 degree angle. Use
a 45 degree angle for tripod use (tripod mount on bottom of meter). Close the
meter when not in use.
Turning the meter ON and OFF
 Press the
button to turn the meter ON
 Press and hold the
button to turn the meter OFF
 Auto Power OFF (APO) turns the meter OFF after 5 minutes of inactivity. To
disable APO: With power OFF, press and hold both buttons until 'n' appears.
 If the meter does not switch ON, please check the battery.
Select the Mode of Operation and the Unit of Measure
 With the meter ON, use the MODE (M) button to step: Wind speed > MAX wind
speed > 10 sec. AVG wind speed > compass > air temperature > wind chill (WCI)
> relative humidity (%RH) > wet bulb (WBT) > dew point (DP) > ∆T.
 In the Air Temperature mode, press the UNIT button to select
 In the Wind Speed mode, use the UNIT button to select unit of measure.
Wind Speed Measurement Notes
Position the meter so that the airflow enters the meter vane from the rear of the
meter. A tripod mount is located on the bottom of the meter for convenience.
Compass and Wind Direction (head/tail/cross) Modes
 Switch the meter ON and select the Compass mode
 Point meter in the direction of travel and read the heading on the LCD.
 Press and hold the UNIT button until 'head-tail-cross' appears at the bottom of
the LCD; the reading will then flash 3 times. Release the UNIT button.
 Point the meter into the wind until there is a steady compass reading. Press and
hold the UNIT button until the compass reading flashes 3 times.
 The head or tail wind value will display. Press UNIT to see the crosswind.
 Press the M button to return to the compass-only mode.
 Note the wind direction indicator (item 2, Meter Description section).
Wind Direction Considerations
The head-tail-crosswind is the relationship between travel direction and wind
direction. When wind direction is fixed and travel direction changes, the wind
resistance changes, for example the wind resistance for A is stronger than B (see
diagram) and C is stronger than D. When calculating head, tail, and crosswind, first
measure the travel direction (compass).
45168CP-mul_V1.4
Compass Calibration
EN
 In compass mode, press and hold the two buttons to
access the 30 sec. timer.
 Rotate the meter twice slowly in the direction shown
in the diagram. Each turn should be 15 seconds in
o
Compass
duration.
 After the two turns, the LCD will show 'END' to confirm the
calibration.
 Calibrate the meter before each use and always after a battery change.
Meter Description
1
Vane impeller (impeller set screw on back)
2
Wind direction indicator
3
Temperature and Humidity sensors
4
LCD Display
5
ON/OFF, M (MODE) button
6
UNIT button
7
Battery compartment (back)
8
Tripod mounting hole
o
o
F or
C.
9
Storage case
10 Lanyard holder
Maintenance
Battery Replacement
Turn the meter off before opening the battery compartment. Using a coin, turn the
battery compartment cover (back) CLOCKWISE to remove it. Once opened, observe
the position of the battery, placing the new one in the same position. Secure the
battery compartment before use. Please dispose of the battery responsibly. Remove
battery if meter is to be stored for a month or longer.
EU users are legally bound by the Battery Ordinance to return all used batteries to
community collection points or wherever batteries / accumulators are sold.
Disposal in household trash or refuse is prohibited.
Disposal: Follow the valid legal stipulations in respect of the disposal of the device at
the end of its lifecycle
Impeller Replacement
 Remove the rear set screw, located to the left of the impeller assembly.
 Twist the impeller assembly counter-clockwise to the OPEN (O) position and
remove it.
 Install impeller by inserting & twisting the new impeller assembly clockwise to
the LOCK (L) position.
 Tighten the set screw.
Copyright © 2015-2020 FLIR Systems, Inc.
All rights reserved including the right of reproduction in whole or in part in any form
www.extech.com
1
CFM Air Volume Measurements
Measure the area of the duct using the diagrams below for rectangular or circular
duct. If the duct measurements are made in inches, divide the inches by 144 to get
the area in square feet. Insert the area value (in square feet) into the equations
below. Note that the air velocity must also be inserted into the cubic equations.
CFM (ft
3
/min) = Air Velocity (ft/min) x Area (ft
CMM (m
3
/min) = Air Velocity (m/sec) x Area (m
Specifications
Measurement
Range
Resolution
MPH (miles per hour)
2.5~44.7 MPH
0.1 MPH
KPH (kilometers per hour)
4.0 to 72.0 km/h
0.1 km/h
KNT (naut. miles/hour)
2.1~38.9 knots
0.1 knots
MPS (meters per second)
1.1~20.0 m/s
0.1 m/s
FPM (feet per minute)
216~3936 ft/min
2 ft/min
BF (Beaufort force)
1~8 BF
1 BF
Temperature
-15~50
o
C (5~122
o
F)
0.1
Relative Humidity
0.1~99.9% RH
0.1% RH
Dew Point Temperature
-20~50
o
C (-4~122
o
F)
0.1
Wet Bulb Temperature
-5~50
o
C (23~122
o
F)
0.1
Compass
0~360
o
Wind Chill
-20~50
o
C (-4~122
o
F)
0.1
Display
LCD with multifunction indicators
Sensors
Sapphire bearing, non-corrosive vane; Precision thermistor for
temperature measurements; Capacitive RH sensor
AVG Mode
10 reading averaging for wind speed mode
MAX Mode
MAX recalls the highest wind speed reading
Response time
Air Temperature and RH: 60 seconds (typical)
Water and Drop Resistant
Water resistant housing to 1m (3') / Drop tested to 2m (6')
Operating conditions
-15 to 50
o
C (5 to 122
o
F) / < 80% RH
Power supply
Lithium battery (CR-2032 or equivalent)
Dimensions / Weight
140 x 45 x 25mm (5.5 x 1.8 x 1.0") folded / 90g (3.2 oz.)
Vane diameter: 24mm (1.0")
Safety Standard
EN 61326-1 (2013)
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 warranty text please visit:
.
http://www.extech.com/support/warranties
2
)
2
) x 60
Accuracy (% of rdg)
± (3% + 0.4 mph)
± (3% + 1.4 km/hr)
± (3% + 0.6 knots)
± (3% + 0.2 m/s)
± (3% + 40 ft/min)
± 1
o
F/C
± 1.0
o
C (± 1.8
o
F)
± 3% (10~90%)
o
F/C
Calculation
o
F/C
Calculation
1
o
± 2
o
o
F/C
± 2%

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Resumen de contenidos para Extech 45168CP

  • Página 1 Two-year Warranty www.extech.com 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 warranty text please visit: http://www.extech.com/support/warranties...
  • Página 2  Gire el medidor dos veces lentamente en la dirección indicada en el diagrama. Cada vuelta debe ser de 15 Agradecemos su compra del 45168CP de Extech. Este instrumento mide velocidad segundos de duración. del viento, temperatura, % de humedad relativa, punto de rocío, bulbo húmedo y PCM (pies /min) = Velocidad del aire (ft./min.) x Área (ft...
  • Página 3: Description De L'appareil

     Installez l'hélice en insérant, puis en tournant l'hélice neuve dans le sens des afficher la valeur du vent latéral. FLIR Systems, Inc. garantit que cet instrument de la marque Extech est exempt de aiguilles d'une montre pour la positionner sur LOCK (L).
  • Página 4  Drehen Sie das Gerät zweimal langsam in die in der Abbildung durch 144, um die Fläche in Quadratfuß zu erhalten. Geben Sie den Flächenwert (in Vielen Dank für den Kauf des Extech 45168CP. Dieses Gerät dient der Messung von angezeigte Richtung. Jede Drehung sollte 15 Sekunden Quadratfuß) in die unten genannte Gleichung ein.
  • Página 5 Garanzia di due anni direzione di marcia cambia, varia la resistenza FLIR Systems, Inc. garantisce che questo strumento di marca Extech è privo di difetti al vento, ad esempio, la resistenza al vento di nei componenti e nella lavorazione per due anni dalla data di spedizione (una A è...
  • Página 6 Se as medições do duto são feitas em polegadas (inch), divida as polegadas por 144  Girar o medidor duas vezes lentamente na direção Obrigado por escolher o Extech 45168CP. Esse instrumento mede a Velocidade do para obter a área em pés (ft) quadrados. Insira o valor da área (em pés quadrados) mostrada no diagrama.