Intended Purpose - TESTO 425 Instruction Manual

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2. Intended purpose

2. Intended purpose
This chapter gives the areas of application for which the
product is intended.
Use the product only for those applications for which it was
designed. Ask Testo if you are in any doubt.
testo 425 is a compact instrument for measuring flow
velocities and temperatures by means of a permanently
connected flow/temperature probe (hot wire probe).
The product was designed for the following tasks/
applications:
· Measuring volumetric flow rates in ducts
· Measuring flow velocities in rooms
· Measuring the temperature of flows
The product should not be used in the following areas:
· Areas at risk of explosion.
· Diagnostic measurements for medical purposes