Extech 45118 Handleiding

Extech Meetapparatuur 45118

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45118 en 4.- -US_v 7 8/21
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
oF
±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. Afx 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
Copyright 2021 Teledyne FLIR ©LLC
All rights reserved including the right of reproduction in whole or in part in any form
www.extech.com

Product specificaties

Merk: Extech
Categorie: Meetapparatuur
Model: 45118

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