Sartorius MA150 Operating Instructions Manual page 25

Features
Number of Drying Programs:
20 programs
Programs are listed according to
program number.
Heating Programs
Two heating programs are available
for performing moisture analysis of
a substance:
– Standard drying
– Gentle drying
Standard drying:
The final temperature needs to be
entered when using the standard
program.
T [°C]
Standardtrocknung
If a target temperature of over 200°C
is entered, the moisture analyzer heats
to the target and then adjusts to 200°C
th
in 5 phases, from the 10 to the 30
minute.
T [°C]
10 30 t [min]
Standardtrocknung
Gentle drying:
Heat up to the target temperature
(maximum 200°C) in a selectable time-
frame between 1 and 20 minutes.
Standby Temperature
– Temperature set to defined value
when the sample chamber is closed
Initial Weight
The target weight (as a guide for
applying a sample to the analyzer –
not as a starting condition) can be
entered by the user. The tolerance
limits of ± 20% are displayed.
Start of Analysis
– With stability after pressing u key:
When
START
line and you press u to confirm,
the initial weight is stored at stability
regardless of whether the cover is
open or closed.
– Without stability after the cover
is closed:
A prompt to close the cover
(a graphic symbol) is displayed once
the initial weight condition is met.
The initial weight is stored without
stability as soon as the sample chamber
is closed.
t [s]
The analysis starts as soon as a 2-second
delay has elapsed after the cover is
closed or the sample chamber is opened
and then closed (applies to both start
th
criteria).
– With stability after cover is closed:
A prompt to close the cover (a graphic
symbol) is displayed once the initial
weight condition is met.
200°C
The initial weight after stability is
stored as soon as the sample chamber
is closed. There is no additional
delay time.
– Interruption of analysis:
You can open and close the cover
at any time without interrupting the
measurement to post-treat samples.
The device status line shows
MEASUREMENT PAUSE/MEASURE-
MENT when you open/close the cover.
The drying and heating algorithms stop
when the cover is open and continue
once it is closed.
is shown in the function
End of Analysis with Shutoff
Parameters
– Fully automatic
– Semi-automatic, absolute
– Semi-automatic, percentage
– Timer mode
– Manual
Fully automatic:
The analysis ends as soon as the weight
loss per 24 s is below an automatically
detected threshold.
Weight
Moisture
Automatic shutoff
Time
Semi-automatic, absolute:
The analysis ends as soon as the weight
loss per 24 s is lower than a user-
defined threshold (set in milligrams).
Semi-automatic, percentage:
The analysis ends as soon as the weight
loss per 24 s is lower than a user-
defined threshold (set in percent). The
percentage is entered by the user.
Timer mode:
The analysis ends as soon as the
specified time has elapsed.
Manual:
Shut-off with the u key.
25