TESTO REXS, Руководство пользователя

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6 Setting up and installation
26
Fig. 6.1: Direct connection of the testo REXS to the DUT
Layout 2: Connection of a DUT with dilution air supply or simple
resonance pipe
Application and specification

appropriate backpressure upstream of the DUT to 200 mbar . In this layout a higher back
pressure may result in pulsation and/or aerosol flow oscillation. The soot size distribution
and concentration may shif
t

Tee and an additional pipe (B) disposed and, if required, a supply for the dilution air

adapted for applications with constant flow rate of the REXS or under applications of
necessary dilution air
Recommended length
A: Up to 100 cm
B: Approx. 2 or 3 times the length A
C: When using an exhaust filter with tunnel keep the tube short or use a vertical exhaust
pipe close to the outlet.