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Place the propeller in the adapter on the side of the cone.
The arrow on the propeller
„ For a suction measurement, the arrow points towards the cone.
„ For a blowing measurement, the arrow points away from the cone.
CALCULATION OF THE AIR FLOW
+
HOLD
SET
+
SET
The instrument displays the air flow measurement directly in the chosen unit.
must point in the direction of the air flow:
VELOC → FLOW IN → FLOW OUT → FLOW CUST
„ In for an incoming ow measurement with a cone (blowing),
„ out for an outgoing ow measurement with a cone (suction),
„ CUSt for use without a cone. It is in this case necessary to enter
MAX
AVG
MIN
AIR UNIT
USE
the area of the ventilation register using the Data Logger Transfer
software. The instrument will calculate the product of the area
of the ventilation register times the measured air speed in order
to display the air ow across the whole surface.
m
/s → m
/h → l/s → CFPM
3
3
5
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