Extech 45118 Manual

Extech Måling 45118

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USER MANUAL

Model 4511 Mini Thermo-Anemometer 8

Introduction

Congratulations on your purchase of Extech’s 45118 Mini Thermo-

Anemometer. This meter is shipped fully tested and calibrated and,

with proper use, will provide years of reliable service

Operation

1. Select the desired units for air velocity and temperature by

momentarily pressing the UNITS/MODE key from a powered

down condition. The LCD will show temperature units (oC or oF)

and Air Velocity units. Press the UNITS/MODE key repeatedly

until the desired units are displaying. When nished, press the

ON/OFF/HOLD key momentarily to restart the meter with the

desired units.

2. Power the meter by pressing the ON/OFF/HOLD key

momentarily. The Dual Display will illuminate. The top (larger)

display indicates air speed and the lower display indicates

temperature.

3. Position the meter so that the measured airow enters the meter

vane from the of the meter (opposite side from the front rear

panel logo, part number, etc.).

4. Activate Data Hold (to freeze the most recent display), by

pressing and holding the ON/OFF/HOLD key while taking

measurements. To return to normal operation, release the key

and restart the meter.

5. : After a measurement session, press and hold the Max operation

UNITS / MODE key until the MAX icon appears on the lower left-

hand side of the LCD. Both the Air Velocity and Temperature

indication will represent the highest readings measured since the

meter was last powered.

6. Average mode operation: Normally the meter averages

readings every 2 seconds. To select 5, 10 or 13 second

averaging, rst press and hold the UNITS/MODE key until the

MAX icon appears. Next, press the key again momentarily and

the AVG icon will appear. The 13 second average mode is

selected. Now press the key again and the number 5 will appear.

Leave it there if an average of 5 seconds is desired. Press the

key once more for a 10 second average mode. To return to

normal operation press the UNITS/MODE key repeatedly until all

lower left-hand icons disappear.

7. Wind chill indicator: Press and hold the UNITS/MODE key until

the MAX icon appears. Press the key repeatedly until the WCI

icon appears. The temperature display will now factor in the wind

chill. To return to normal operation, press the UNITS/MODE key

again and the WCI icon will disappear.

8. AUTO POWER OFF: After approx. mins, if meter keys are not 15

touched, the meter automatically shuts down to preserve battery

life.

Meter Description

1. Vane impeller

2. Precision thermister

3. LCD display

4. POWER and HOLD key

5. UNITS and MODE key

6. Battery compartment (on

rear)

7. Swivel handle and

storage case

8. Lanyard holder

9. Impeller set screw (on rear of meter)

Specications

Display Dual LCD with multifunction indicators

Measurements Knots, km/h, MPH, ft/min, m/sec, Beaufort

force, windchill, and temperature (C/F)

Wind-speed Moving 2 second average with 2 second gust

detect

Sensor Sapphire bearing, non-corrosive vane for air

velocity and precision thermistor for

temperature

Average Mode Choice of 5, 10, or 13 second average

readings

Max Display Push button highest reading recall

Data hold Freeze most recent display

Sample time 1 reading per second

Water-resistant To 1 meter) 3’ (

Min/Max wind-speed 1.1 to 62.5 MPH

Operating temperature 5 to 122oF (-15 to 50oC)

Operating humidity < 80% RH

Power supp Lithium battery type CR-2032 or equivalent ly

Battery life 400 hours approx.

Weight 3 oz (95 g)

Dimensions Instrument: 5.25 x 2.75 x 0.75”(133 x 70 x

19mm Vane: 24mm) diameter ) 1’(

Measurement

Range

Resolution

Accuracy

MPH (Miles per

hour)

2.5 to 44.7 MPH

0.2 MPH

± (3%rdg +0.4MPH)

km/hr

(kilometers per

hour)

4.0 to 72.0 km/h

0.7 km/h

± (3%rdg +1.4km/h)

Knots (nautical

miles per hour)

2.1 to 38.9 knots

0.3 knots

± (3%rdg +0.6knots)

m/sec (meters

per second)

1.1 to 20.0 m/s

0.1 m/s

± (3%rdg +0.2m/s)

ft/min (feet per

minute)

216 to 3936 ft/min

20ft/min

± (3%rdg +40ft/min)

Beaufort force

1 to 8 BF

1 BF

± 1

Temperature

0 to 122 oF

0.1

±1.8oF

-18 to 50oC

0.1oC

±1oC

Maintenance

Battery Replacement

If the meter will not power up as usual or the display contrast

becomes weak and dicult to read, replace the lithium battery. To

do so, turn the battery compartment cover in a CLOCKWISE

direction to remove it. The battery will be visible in the battery

compartment, observe the position of the battery and replace the

new one in the same position. Afx the battery compartment cover

by turning it in a COUNTER-CLOCKWISE direction. Dispose of the

lithium battery in accordance with local, state, or national waste

disposal codes.

Vane Impeller Replacement

NOTE: The anemometer is very accurate at low and mid-range air

speeds. Constant use at very high speeds may damage the

impeller’s bearing and reduce over-all accuracy.

1. To replace the impeller, remove the set screw next to the

impeller assembly (on the rear of the meter). Twist the impeller

assembly counter-clockwise to the "O" (open) position and

remove it.

2. Install the new impeller by inserting and twisting the new

impeller assembly clockwise then tighten the set screw.

CFM Measurements

Measure the area of the duct using the diagrams below for

rectangular and circular ducts (If the duct measurements are made

in inches, divide the inches by 144 to get the area in square feet).

Plug the area value (in square feet) in the cubic equations below.

Note that the air velocity must be plugged into the cubic equations

also.

CFM (ft3/min) = Air Velocity (ft/min) x Area (ft2)

CMM (m3/min) = Air Velocity (m/sec) x Area (m2) x 60

Two-year Warranty

Teledyne FLIR LLC warrants this Extech brand instrument to be free of defects in parts

and workmanship for from date of shipment (a six-month limited warranty two years

applies to sensors and cables). To view the full warranty text please visit:

http://www.extech.com/support/warranties.

Calibration and Repair Services

Teledyne FLIR offers calibration and repair servicesLLC for the Extech brand products

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- -date product information: . to www.extech.com

Contact Customer Support

Customer Support Telephone List: https://support.flir.com/contact

Calibration, Repair, and Returns: repair@extech.com

Technical Support: https://support.flir.com

www.extech.com

Produkt Specifikationer

Mærke:	Extech
Kategori:	Måling
Model:	45118

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