Chapter 1 – Installation of the instrument
UM-22100H-U User manual ATEQ D520 Page 25/122
2.2.2. 6) Pneumatic air supply
The air is supplied through the filter placed on the back
panel of the instrument.
The air supply must absolutely be clean and dry. The presence of dusts, oil or
impurities, causes a risk of improper operation of the instrument despite the filter
supplied.
When the instrument operates in vacuum the entry of debris into the instrument must be
avoided. For this purpose it is highly recommended that an appropriate leak proof filter
is fitted between the test part and the instrument. This filter can be supplied by ATEQ.
The presence of impurities, oil or humidity in the air may cause a deterioration for
which the guarantee will not be valid.
According to the ISO 8573-1 norm concerning the quality levels of compressed
air for measurement instruments in industrial environments:
ATEQ recommends:
• Grain size and concentration CLASS 1 (0,1 µm and 0,1 mg/m
3
)
• Dew point under pressure CLASS 2 (- 40° of dew)
• Maximal concentration in oil CLASS 1 (0,01 mg/m
3
)
ATEQ recommends the installation:
• Of an air drier allowing the obtaining of a dry air with a dew point at less than -
40°,
• Of a 25 microns and 1/100 of a micron double filter.
Optimisation of the operation:
The air supply pressure must be between 400 kPa and 800 kPa (4 and 8 bar) to ensure
a perfect operation of the pneumatic distributors.
In the event of the use of a mechanical regulator, it is necessary to have an air
pressure supply which is at least 100 kPa (1 bar) over the test pressure with a
minimum of 400 kPa (4 bar).
In the event of the use of an electronic regulator, the input pressure must be at
least 10 % over the full scale value of the electronic regulator + 100 kPa (+ 1 bar).
To Next Page
Loading...
Need help?
General
