Accessories Manual

10
Additional accessories
HPP constant climate chamber with compressed air
dehumidifi cation
In this special variation, the temperature-humidity working area of the appliance is ex-
tended by the use of external compressed air. This makes it possible to dehumidify the air
in the appliance even at 10
º
C down to 10 % relative humidity:
Temperature-humidity working range Memmert HPP
with compressed air dehumidification
0
10
20
30
40
50
60
70
80
90
100
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75
Temperature °C
Humidity % rH
extended range
In order to do
this, connect a suitable
pressure hose at the rear of the chamber (see
picture) to an external compressed air supply
(max. 5 bar).
Only oil-free compressed air may be
used.
If 10 % humidity is not attained at 10
º
C,
the compressed air is not, or not sufficiently,
pre-dehumidified. In this case it is possible to
dehumidify the compressed air before it is fed
into the chamber via a maintenance unit con-
nected upstream, available from MEMMERT.
Several chambers can be connected to this
maintenance unit.
compressed air
connection
(max. 5 bar)