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PC Interface Software | 55
The following profile steps will be available in the drop-down
menu:
Wait:
WAIT AT X.X°C SET TEMPERATURE.
Figure 140. Wait Command
Maintains specified chamber temperature indefinitely until the
user clicks the “Program waiting for user -- Click here to
continue” button on the Run screen. The temperature can be
set over the -180°C to +50°C range, with a setting resolution
of 0.1°C.
Wait For:
WAIT AT CHAMBER=X.X°C UNTIL SAMPLE=Y.Y°C.
•
X.X is Chamber set temperature and Y.Y is the Sample
trip temperature.
•
The default Sample trip temperature is 1°C above
Chamber temperature.
Figure 141. Wait For Command
Step maintains specified Chamber temperature and moves to
next step in profile when Sample temperature cools to the
specified temperature. This step should be used when the
starting Sample temperature is greater than the specified
Sample temperature (the Sample is cooling).
IMPORTANT:
Step 1 only permits a Wait or Wait For as
command.
Ramp:
RAMP X.X°C/MIN UNTIL CHAMBER=Y.Y°C (or) RAMP
X.X°C/MIN UNTIL SAMPLE=Y.Y°C.
•
X.X is the ramp rate and Y.Y is the chamber (or sample)
endpoint temperature.
Figure 142. Ramp Command
This step changes Chamber temperature from its current
value to specified temperature (chamber sensor trip point) at
the selected rate (°C/minute). The rate can be set over a
range of 0.1°C/ minute to 99.9°C/minute. The temperature
can be set over a range of -180°C to +50°C (±0.1°C). When
the chamber reaches specified temperature, the control
moves to the next step in the profile. If Sample is selected,
chamber temperature changes at a specified rate until sample
reaches specified temperature.
Note:
The slope of the temperature ramp is determined
automatically, based on the temperature defined and the
chamber temperature at the beginning of the step. Entry of a
sign (+/-) for the temperature ramp rate term is not allowed.
Hold:
HOLD X.X°C FOR Y.Y MINUTES.
•
X.X is the chamber set temperature and Y.Y is the
minutes.
Figure 143. Hold Command
Maintains a specified Chamber temperature for the specified
hold duration before proceeding to the next step. The time
can be set over a range of 1 to 99 minutes, and the
temperature can be set over a range of -180°C to +50°C with
a setting resolution of 0.1°C.
Note:
Chamber and Sample selection are deactivated here.
Jump To:
JUMP TO STEP X.
•
X is the step number.