Page 12 of 24 MEL-TEMP M8160 Issue 1.5
7.2. Principles of Operation.
7.2.1. During operation the various parameters of the sample analysis are shown on the liquid
crystal display, and all the stages of the process are indicated by the L.E.D. illumination
or audible warning. The principles of the operation are as follows:-
Guided
by knowledge of the expected melting temperatures of the sample, a ‘Set
Point’ is established and its value keyed in.
The oven temperature is driven to meet the ‘Set Point’ at maximum rate.
After a short delay for the oven temperature to stabilize at the ‘Set Point’, the ramp
is activated and the temperature now increases linearly at the much slower ramp
rate, during which time the melt analysis takes place.
The melting of the sample is observed and the temperatures registered via the
MEL-TEMP keypad at the appropriate time.
Melt temperature information is now available for review on the display until further
melts overwrite existing data or the MEL-TEMP is turned off at the mains electrical
supply.
The oven temperature may now be directed to a new ‘Set Point’ if required for the
next analysis.
