- -
50
AP471
S1,
AP471
S2,
AP471
S3
,
AP471
S4,
AP471S5
AND
AP471S6
H
OT
W
IRE
P
ROBES FOR MEASUREMENT OF AIR VELOCITY EQUIPPED WITH
SICRAM
MODULE
The AP471 S1 and AP471 S3 probes measure incident air flows up to 40m/s. The AP471 S2,
AP471 S4, AP471 S5 and AP471 S6 probes are fitted with an omnidirectional sensor allowing
measurement of speeds up to 5m/s in any direction of the air flow incident on the probe. The AP471
S4 probe is fitted with support base and sensor protection, the AP471 S5 is identical to the AP471
S4, but instead of a base it is provided with a telescopic rod. The wind speed measurement is com-
pensated for according to temperature within the range of 0…+80°C. The probes AP471S1, AP471
S2, and AP471S3 measure the environment temperature in the range of -30°C…+110°C; AP471
S4, AP471S5 and AP471 S6 probes in the range 0°C…+80°C.
AP471 S1
AP471 S3
Zero Command
The AP471S… modules are fac-
tory calibrated and do not re-
quire any calibration by the user.
Before carrying out a measure-
ment, you have to adjust the
“zero” point of the probe. This
means that, failing the wind, ve-
locity and flow values provided
by the probe, at a temperature
next to that of the airstream to
be measured, shall correspond to
zero.
The AP471 S1, S2 and S3 probes are fitted with a cylindrical protection screen that can slide longi-
tudinally over a groove. The screen has two end-of-travel positions that block it in measurement
condition (completely low) or rest condition (completely high). To reduce the space occupied when
SPEED SENSOR
LINE OF STREAM DIRECTION
COMPENSATION SENSOR
AMBIENT
SENSOR
TEMPERATURE
CYLINDRICAL SLEEVE
