Extech Users Manual Model 45118
Contents
1. 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 15 mins if meter keys are not touched the meter automatically shuts down to preserve battery life 8 Lanyard holder 9 Impeller set screw on rear of meter Specifications 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 3 1 meter Min Max wind speed 1 1 to 62 5 MPH Operating temperature 5 to 122 F 15 to 50 C Operating humidity lt 80 RH Power supply Lithium battery type CR 2032 or equivalent Battery life 400 hours approx Weight 3 0z 95g Dimensions Instrument 5 25 x 2 75 x 0 75 133 x 70 x 19mm Vane 1 24mm diameter 2 2 Electrical Specifications return all used batteries and accumulators disposal in the household garbage is prohibited You2. EXTECH a ara cen Mini Thermo Anemomete A ELIR company User Manual Model 45118 INI rmo Anemom r Introduction Meter Description Maintenance Congratulations on your purchase of Extech s 45118 Mini Thermo 1 Vane impeller Battery Replacement Anemometer This meter is shipped fully tested and calibrated and with 2 Precision thermister If the meter will not power up as usual or the display contrast becomes weak proper use will provide years of reliable service 3 LCDdispla and difficult to read replace the lithium battery To do so turn the battery play compartment cover in a CLOCKWISE direction to remove it The battery will Operation 4 POWER and HOLD key be visible in the battery compartment observe the position of the battery and 5 UNITS and MODE key replace the new one in the same position Affix the battery compartment le Select the desired units for air velocity and temperature by momentarily cover by turning it in a COUNTER CLOCKWISE direction Dispose of the pressing the UNITS MODE key from a powered down condition The LCD 6 Battery compartment on lithium battery in accordance with local state or national waste disposal will show temperature units C or F and Air Velocity units Press the rear codes i UNITS MODE key repeatedly until the desired units are displaying When 7 Swivel handle and storage finished press the ON OFF HOLD key momentarily to restart the meter case You as the end user are legally bou
3. can hand over your used batteries accumulators at collection points in your community or wherever batteries accumulators are sold DISPEEF ollow the valid legal stipulations in respect of the disposal of the device at the end of its lifecycle 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 Measurement Range Resolution Accuracy ee Miles per 4 4 to 62 5 MPH 0 2MPH 3 rdg 0 4MPH km hr kilometers 4 8 to 100 6 km h 0 7 km h aatem per hour Knots nautical 4 9 t054 3knots 0 3knots 3 rdg 0 6knots miles per hour m sec meters Q 5010 28 00 m s 0 01m s 8 rdg 0 2m s per second ft min feet per 100 to 5500 ft min 20ft min 3 rdg 40ft min minute Beaufort force 1 to 17 BF 1 0 to 122 F 1 8 F 18 to 50 C 0 1 C 1 C Temperature Measure the area of the duct using the diagrams below for rectangular and circular ducts lf the duct measurements are made in inches divide the inches by 144 to get the ar
4. ea 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 h w A w h A n CFM ft min Air Velocity ft min x Area ft CMM m min Air Velocity m sec x Area m x 60 Copyright 2008 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form V4 2 7 09
5. nd Battery ordinance to 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 airflow enters the meter vane from the rear of the meter opposite side from the front 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 Max operation After a measurement session press and hold the 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 first 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
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