22
Melting point
B-540
5 Operation
5.7.2 Melting point determination with unknown
melting point
If the user has no information about the location of the melting
point of his substance it can be found out by means of a
previous fast determination. For that purpose, it is recommen-
ded to select the SETPOINT as low as possible and the
temperature GRADIENT as high as possible. Here, the MAX-
POINT should be selected to ensure that it is definitely above
the melting point. A fast determination can only be started
from the main menu.
A sample designation is dispensable. The SETPOINT, GRADIENT
and MAXPOINT must be defined. By way of example, a melting
point is to be determined which is between the ambient
temperature and 300°C. For this, it is sufficient to determine
the approximate melting point with one capillary only.
Establishing the SETPOINT
(with unknown melting point)
Press ENTER until the cursor is on the SETPOINT field.
Increase or reduce the value until the number 0 is in the first
digit.
Press NEXT until the cursor is on the second digit.
Increase or reduce the value until the number 3 is in the second
digit.
Press NEXT until the cursor is on the third digit.
Increase or reduce the value until the number 0 is in the third
digit.
ENTER to transmit the SETPOINT temperature.
The cursor will jump to the next line.
TEMPERATURE
:
25.0°C
SETPOINT
:
100°C
GRADIENT
:
2.0°C
MAXPOINT
:
120°C
