10
3.2 Probes and Components
S-tube probe for measuring the flow speed (see chapter 6.5)
and the airflow (see chapter 6.2).
• Insert the plug of the S-tube probe into jack 11 (Fig. 1) of
the PC 410.
• Connect the overpressure hose (turned against the flow) of
the S-tube probe to the overpressure socket (+) (Fig. 1, part
9) and the underpressure hose to the underpressure socket
(-) (fig. 1, part 10).
Fig. 2: S-tube probe
Flexible capillary
For the 4 PA test two flexible capillaries are needed.
Fig. 3: Capillary tube