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Using the BAPPU Anemometer air movements or draughts as well
as power characteristics of exhaust pumps in laboratories may be
seized.
Because of the unique combination of BAPPU measurements
furthermore the cosyness* in office rooms may conveniently
examined. (*As requierd in german laws and safety ordonnances.)
The device has to be connected via BAPPU`s serial
interface and is automatically switched on by the
activities on the interface. The lighting of a red luminescent
diode marks readiness for use.
The connection of a special adaptor facilitates the
simultaneous data transfer to BAPPU and from BAPPU
to a PC so that long term recordings may be carried out
without problems.
As already known from BAPPU standard unit in general
great importance was attached to a simple and
practically orientated operation.
Caused by the increasing use of air conditions or aerators in offices
and administration espacially in this sector the seize of air
movements has become more and more important.
Beside the “stand alone“ recording of draught values in traditional
working areas first the combination of the measurements temperature,
rel. humitdity and air velocity as realized in the BAPPU
conception facilitates their assessment and classifying in analyses
as requierd by health protection ordonnances*. (*In germany)
In dependency to the factors temperature and humidity draught may
be felt as unpleasant even if air velocity is low. The BAPPUanemometer
therefore has been developed for the recording of
even very modest air velocities. (Range 0,0 m/sec - 5 m/sec).
To guaranty a most simple and convenient operation the measuring
feeler of the anemometer was designed as a ball. This permtits air
velocity measurements almost indipendently from the direction of
the air stream.
The measuring-section “air velocity” embraces 4 single measurements.
Beside the seize of current values 3 averages over 3 minutes
may be ascertained in different altitudes, corresponding to the most
draught-sensitive areas of the human body (ankle, pelvis and neck) .
The operation of measurments as well as all other functions
(”Hold”, “Function”...) correspond to the proceeding when working
with the basic BAPPU device.
To carry out air velocity measurements conveniently a stopwatch
was integrated to check the run of the requierd 3
minutes for the singele measurements. “Run” is on
display until the necessary duration is over.
Beside the recorded air velocity value the
parameter “temperature in °C” (measured in the air stream by a
seperate feeler) which is necessary for the assessement of the
measurement, is represented on the instruments display.
All recorded data is clearly shown on the display and confrontated
to their thresholds as determined in health and safety regulations.
These thresholds may be entered by the user himself based on
the requierments published in national laws. The result of the
examination is represented on the display (value in recommended
range, value tolerable, value non conform) and
supported by the lighting of a luminescent diode in traffic colours.
To be able to execute averages over a 3 minutes duration or longterm
recordings with the additional PC software BAPPU-Time the
anemometer has been equipped with a tripod-fastener on the
instruments back side.
A table stand is part of
the delivery.
In case of an afterwards
supplementation
of a BAPPU
device with a thermo-
anemometer
the transport case
will be modified as
represented in the
illustration.
Illustr.: BAPPU,
anemometer
and equipment
in shockresistant
ABS transportation
case
Overview
Operation
BAPPU-anemometer
Adding the BAPPU anemometer integrates a further measuring
section into the BAPPU-conception. Air velocity may now be
measured reliable within orientational measurements.
The immediat assessement of recordings by comparison to user
edited thresholds on the display is carried out in the same manner
as already known from the basic device measurements.