– 18 –
Connecting to the suction unit
When using a dental chair suction unit, insert the end of
the mask system vacuum hose into the large suction cup
without an adapter or to the saliva ejector of the small
suction cup using the white adapter. If you need both
suction cups for the treatment, please contact your chair
manufacturer and order an additional suction cup/t-
piece or order a nitrous evacuator from Baldus medizin-
technik GmbH (see Accessories).
now insert the included power supply cable into a 230
V socket.
Before operating the unit for the first time, perform a
gas type check, inspect the safety mechanisms (refer to
Section 6) and use a leak detection spray to ensure gas
tightness!
Fig. 18: Connecting the hose
to the mixed gas outlet
Suction unit
White adapter
for saliva ejector of the
small suction cup
6. SAFETY AND REgULAR cONTROLS
6.1 General safety information
By using double masks, you minimise the risk of ambient
air contamination.
Before the first sedation, carry out
a gas type check and inspect the
safety mechanisms!
the operator is responsible for storing the gas cylin-
ders and units safely. Use with certified medical gases
only. observe the fire safety regulations and the or-
dinance on Hazardous Substances (Gefahrstoffverord-
nung). the gas types must be checked after installing
the mixer and accessories to rule out any mix up in the
gas types. to check the gas types, open just the oxy-
gen cylinder and set a total flow (e.g. 5 l/min.), ensur-
ing that the n
2
o concentration is 0%; the n
2
o cylinder
must be kept closed. only oxygen should now flow if
everything has been connected correctly. If no gas is
flowing, do not use the nitrous oxide sedation under
any circumstances and contact the Service team im-
mediately.
Caution: the control valves are hot; the
service partner must let them cool down before
maintenance/replacement.
ensure that the high-pressure valves of the gas cylinders
are always opened slowly. Quick opening may cause the
pressure reducers to malfunction or lead to defects in
the mixer. Before any treatment, ensure there is suffi-
cient pressure in the gas cylinders to complete the pa-
tient’s treatment without a gas running out (refer to the
fill level calculation below). If the pressure gauges on the
pressure reducers show less than 50 bar of oxygen (o
2
)
or 30 bar of nitrous oxide (n
2
o) (with 10-litre cylinders),
do not perform any further treatments with nitrous ox-
ide. Also observe the cylinder pressure during the treat-
ment. for a decentralised nitrous oxide system, order at
least two 10-litre oxygen cylinders and one 10-litre ni-
