Martin Christ Epsilon 2-6D LSCplus - Manual (Page 19)

Freeze-dryer EPSILON 2-6 LSCplus
2 Layout and mode of operation
Version 10/2012, Rev. 1.6 of 16/12/2014 • sb
19
Translation of the original operating manual
Fig. 11: Freeze-drying phases
NOTE
Please find further information about basic principles, optimum procedures
and applications in the brochure "Smart freeze-drying", which can be
downloaded at www.martinchrist.de [Applications].
Pos: 25 / 010 Unive rsalm odul e/Le erzeil e @ 0\mo d_1 202 116 244 500 _0.d ocx @ 114 @ @ 1
Pos: 26 / 200 Christ /36 0 GT -BA La bor -Pilot (S TANDARDMODULE) /02 0 Aufb au u nd Wirk ungs weise/ 020 -00 20- 002 0 Abla uf ei nes G efrie rtr ockn ungs proz esses @ 25 \mo d_1 404 983 2559 39_ 68. docx @ 18 3075 @ 3 @ 1
2.2.2 Freeze-drying process
The main components of a freeze-dryer are:
• vacuum drying chamber with a temperature control system for adding
thermal energy
• vacuum pump for generating a vacuum inside the drying chamber
• ice condenser for binding the water vapour that is released by the
product.
Pos: 27 / 010 Unive rsalm odul e/Le erzeil e @ 0\mo d_1 202 116 244 500 _0.d ocx @ 114 @ @ 1
Pos: 28 / 200 Christ /36 0 GT -BA La bor -Pilot (S TANDARDMODULE) /02 0 Aufb au u nd Wirk ungs weise/ 020 -00 20- 002 0-0 010 Vorb er eitun g @ 2 5\m od_ 140 498 3256 926 _68 .docx @ 1 8308 9 @ 4 @ 1
2.2.2.1 Preparation
The ice condenser chamber must be clean and dry. Any water residues
from a preceding drying run must be removed.
The media drain valve and the aeration valve must be closed.
In the case of units that are equipped with a pressure control valve
(standard on LSCplus units), the vacuum pump should be warmed up
(“warm-up”) for at least 15 minutes prior to the start of the main drying
phase. Do not subject the vacuum pump to condensable gases until the
operating temperature is reached. In this way, the service life of the
vacuum pump can be extended.
1
2
1 bar
20°C
Vap
our
pres
sure
cur
ve
Va
po
ur
p
re
ss
ur
e
cu
rv
e
fo
r i
ce
=
su
bl
im
at
io
n
pr
es
su
re
c
ur
ve
Triple point
SOLID
LIQUID
GASEOUS
M
e
lt
in
g
p
o
in
t
p
re
ss
u
re
c
u
rv
e
Pressure
(mbar)
Temperature (°C)