Useful Equations And Conversions; Cubic Equations - Extech Instruments 45118 Manual De Instrucciones

7. CALIBRATION / REPAIR SERVICES
Extech offers complete repair and calibration services for all of the products we sell. For
periodic calibration, NIST certification or repair of any Extech product, call customer
service for details on services available. Extech recommends that calibration be performed
on an annual basis to insure calibration integrity.
8. WARRANTY
EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and
workmanship for one year from date of shipment (a six month limited warranty applies on sensors and
cables). If it should become necessary to return the instrument for service during or beyond the warranty
period, contact the Customer Service Department at (781) 890-7440 for authorization. A Return
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This warranty does not apply to defects resulting from action of the user such as misuse, improper wiring,
operation outside of specification, improper maintenance or repair, or unauthorized modification. Extech
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The warranty set forth above is inclusive and no other warranty, whether written or oral, is expressed or
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including the right of reproduction in whole or in part in any form.

USEFUL EQUATIONS AND CONVERSIONS

Area equations:

Cubic equations:

3
CFM (ft /min) = Air Velocity (ft/min) x Area (ft
3
CMM (m /min) = Air Velocity (m/sec) x Area (m
4
2
)
2
) x 60
45118es Ver. 2.1 05/03