INSTRUCTIONS FOR USE DA 270, DA 370, DA 280, DA 380
UM_EN_DA270_DA280_DA370_DA380_m2015_2019-04_ver1.9 10 / 67
Air
Supply of at least
55 l/min
. of air at the pressure of
0,45 až 0,8 MPa
, oilless, clean and dry must be ensured. Recommended
values for moisture limit (dew point not more than -
20 ° C at atmospheric pressure), oil pollution limit (Max. 0.5 mg/m3),
limit of pollution for particles (no more than 100 particles per cubic m
eter for particles sizes of 1 µm to 5 µm).
Suction (in the event of the version of the spittoon block with big and small aspirator)
Static vacuum must be within the range of min. 0,005 MPa (50 mbar) to max. 0,02 MPa (200 mbar), measured at installed
position. When the static vacuum is higher than 0,02 MPa, a suction calibration (regulating) valve should be introduced in
the suction branch to restrict the max. vacuum to 0,02 MPa. The said regulating valve does not form an integral part of the
dental unit. The suction unit must produce the flowrate of at least 450 l/min., measured at the installed position.
Waste
The waste /drain/ branch must have continuous slope of min.
1%
with minimum flowrate of 10 l/min. and must be free of
sharp bends and conditions that might cause backlow.
Do not use the same waste branch with another dental unit or
a basin!
It is allowed to use tubes made of polypropylene or cured polyethylene.
Note
If the regulations of the country in which the installation is carried out require an amalgam catcher, the dental
unit with the spittoon block without the amalgam catcher must be connected to an external amalgam catcher.
Installation of the external amalgam catcher must be carried out according to the instructions of its
manufacturer.
5.2 Electrical Requirements
Recommended mains fuse rating
Recommended rating of the fuse of the supply main is 16A (in the event of circuit breaker
– circuit breaker with switching-
off characteristic of C type). No other items of equipment should be connected to the supply main in question!
Maximum power input of the dental unit is 1550 VA. The supply main must comply with the respective national standard.
Recommendation
Unless the national standard stipulates otherwise, the manufacturer recommends to use current protective switch with the
sensitivity of 30mA and instantaneous time of switching-off.
Pre-installation requirement having been met, assembly and installation of the dental unit is carried out and it is connected
to the media.
Mutual interference
Dental unit during its operation does not affect the operation of other electronic devices near it
5.3 Unit operational requirements
Parameter
Value from
Value to
Ambient temperature range
+15 °C
+40 °C
Relative humidity range
30%
75 % non-condensing humidity
Atmospheric pressure range
700 hPa
1060 hPa
Altitude
≤ 3000 m
