Memmert TTC Temperature test chamber additional accessories (Generation 2003) - Manual (Page 6)

6
Supplement to Operating Instructions CTC/TTC
2. Compressed air dehumidification
With 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 down to 10 % relative humidity even at 10 ºC:
Humidity
rh
%
˚C
100
90
80
70
60
50
40
30
20
10
0
0 10 20 30 40 50 60 70 80 90 100
Extended working range
Temperature in
With a suitable pressure hose, connect the
chamber to an external compressed air
supply (max. 5 bar) at the rear of the
appliance (see picture).
Only oil-free compressed air may be
used.
If 10 % humidity is not attained at 10 °C,
the compressed air is not, or not suf-
ficiently, pre-dehumidified. In this case, it
is possible to dehumidify the compressed
air before it is fed into the chamber via a
maintenance unit connected upstream,
available from MEMMERT. Several cham-
bers can be connected to this mainte-
nance unit.
Compressed air
connection
(max. 5 bar)
Compressed air
connection
(max. 5 bar)