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6.2.8 AP472S... Vane wind speed measurement probes complete with SICRAM module
The AP472 S1 and AP472 S2 vane probes measure the incident wind speed and flow rate. The
probe AP472 S1 measures also the temperature using a thermocouple of type K. On request, they
can be fitted with a telescopic rod that eases measurements in areas difficult to reach (for example
vents). The probes' speed and temperature measurement ranges are outlined in the table below:
AP472 S1
AP472 S2
Greater diameters are suitable for flow measurements in the presence of turbulence with medium-
low air speeds (i.e. at the exit of the ducts). Lower diameters are suitable in applications where the
probe surface must be much slower than the duct cross section within which the measurement is
carried out, i.e. ventilation ducts.
Calibrations
The AP472 S1 and AP472 S2 probes are calibrated in the factory; no calibration is required by the
user.
Operation
Where present, extend the telescopic rod to the necessary length paying attention to the cable so
that it can slide freely and without strain .
Introduce the probe in the air flow being measured, maintaining the arrow at the top of the probe
parallel to the flow as indicated in the following figure.
HD32.1
Speed (m/s)
Temperature (°C)
0.6...25
0.5...20
-25...+80
-25...+80
- 79 -
Temperature
Diameter
sensor
(mm)
Thermocouple
K
----
100
60
V2.1
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