Component Explanation
13
3.2
Probes and Components
Fig. 2: S-tube probe
S-tube probe for measuring the air speed (see
chapter 6.2) and the airflow (see chapter 6.3).
Insert the plug of the S-tube probe into jack 11
(Fig. 1) of the Wöhler DC 410
FLOW
.
Connect the overpressure hose (turned against
the flow) of the S-tube probe to the overpres-
sure socket (+) (Fig. 1, part 9) and the
underpressure hose to the underpressure
socket (-) (fig. 1, part 10).
Fig. 3: Capillary tube
Capillary tube for the 4 PA test. Two capillary tubes
are necessary.
