24
Melting point
B-540
5 Operation
Press ENTER to transmit the MAXPOINT temperature.
By pressing START, the unit will heat up to the previously
selected SETPOINT. The display will show the temperature
gradient graphically.
The user is informed acoustically that the SETPOINT has been
reached. At the same time, the graphic will change. The samples
are introduced into the sample holder.
By pressing the START key again, the temperature program is
started between SETPOINT and MAXPOINT and the display
changes to the detection phase.
(If Auto-Start had been switched off, refer to 5.9).
The samples are viewed through the magnifying glass as
required. The melting point is retained by pressing SAMPLE
keys 1/2/3. Every pressing of the SAMPLE keys is acknowledged
with a beep and confirmed with an indication on the screen. A
maximum of three modifications of condition per sample may
be transmitted to the memory. If keys are pressed more than
3x, the last three temperature values will be retained.
When the preselected MAXPOINT has been reached, the
unit will cool down automatically to the previously used SET-
POINT. The temperature program may be stopped before
reaching the MAXPOINT temperature by pressing STOP. Even
in this case, the unit will cool down to the previously selected
SETPOINT and display the values obtained.
The melting point thus determined is 25°C too high for a more
accurate determination (see chapter 5.5.5).
By pressing MENU, the determination can be repeated.
By pressing STOP, the unit will cool down to ambient tempe-
rature.
TEMPERATURE
:
25.0°C
SETPOINT
:
100°C
GRADIENT
:
2.0°C
MAXPOINT
:
120°C
PRESS START
TEMPERATURE
25.0 °C
SP 136 °C
TEMPERATURE
:
135.6 °C
GR
2.0 °C
MP 145 °C
TEMPERATURE
:
135.6 °C
GR
2.0 °C
MP 145 °C
M SAMP1 SAMP2 SAMP3
A XXX.X
XXX.X
XXX.X °C
N XXX.X
XXX.X
XXX.X °C
XXX.X
XXX.X
XXX.X °C
