background image

6

3.  About the instrument

With this air speed meter (or anemometer) you have acquired a preci-
sion instrument of exceptional quality. You also obtain the benefit of
our many years’ experience in measuring physical data on running
paper machine clothing.
All probes have been calibrated in a wind tunnel and are checked to
conform to the required tolerances.

3.1  Names of parts

The instrument is built up out of an electronic
read out unit, a probe with a small propeller that
is installed in a plastic measuring head and a
telescopic grip.

•  The air flow is measured by a small, aerody-

namically optimised propeller which is extre-
mely accurate and reliable.

•  The plastic measuring head is made from

HDPE which ensures low friction with the felt.
Contamination will not stick to the material,
therefore it can be cleaned easily.

Average, minimum and maximum values can be
called up at any time. As the calculation of
these values takes place simultaneously they
can be requested at any time, the test result is
not affected.

Содержание AirSpeed/2

Страница 1: ...Instruction manual Feltest AirSpeed 2...

Страница 2: ...2...

Страница 3: ...2 1 Intended use 4 2 2 Safety precautions 4 3 About the instrument 6 3 1 Names of parts 6 3 2 Working principle 7 4 The measurement 7 4 1 Measuring procedure 7 4 2 Interpretation of the results 9 5 T...

Страница 4: ...Feltest Equipment bv for more information Keep this manual where the operator can easily find it Use the instrument as intended and according to this manual Do not measure the airflow through forming...

Страница 5: ...fety constructions from the paper machine Please note Doing measurements of any kind on running paper machines is dangerous and requires alertness concen tration and common sense The Feltest instrumen...

Страница 6: ...f an electronic read out unit a probe with a small propeller that is installed in a plastic measuring head and a telescopic grip The air flow is measured by a small aerody namically optimised propelle...

Страница 7: ...e air speed through a press felt Find a safe and stable position close to the Uhle box expand the telescopic grip so it will not be necessary to bend over into the machine but most important is to sta...

Страница 8: ...ith which the measuring head is pressed onto the felt Generally spoken the position which gives the highest test results is the best After switching on the instrument averages are calculated over 2 se...

Страница 9: ...several measurements over time with different levels of vacuum one could calculate a relative dynamic permeability This means to meas ure both vacuum and air speed and then calculating the air speed...

Страница 10: ...Display LCD 4 characters Measuring rate 2 values sec Supply Battery 1 x 9 Volt size PP3 Current consumption approx 15 mA Battery life approx 12 hours Case dimensions 80x145x39 mm ABS plastic Case pro...

Страница 11: ...1989 The evaluation procedure of conformity was assured according to the following standards a Emission EN 55022 1994 b Immunity EN 50082 1 1992 This EC Declaration of conformity is based on the test...

Страница 12: ...P O Box 205 NL 6960 AE Eerbeek The Netherlands T 31 313 652 215 F 31 313 654 068 E info feltest com W www feltest com...

Отзывы: