User`s manual

36 Chapter 5: Software Description
Calorimetry Sciences Corp.
CSC 5300 N-ITC III 37
User’s Manual
commands are described below.
Experiment • Settings
The Experiment Settings
command opens the settings
dialog box (Figure 5-6). Also
appears on the toolbar as .
The PID Control portion of
the settings screen controls
the N-ITC III temperature set
points and PID loop variables.
The user should not change
any of the parameters in this
area with the exception of
the Temperature Set variable,
which shows the current
operating temperature of the
N-ITC III.
The Instrument Control
section contains settings for
the calibration and buret control. The Injection rate (ms) setting controls the speed of the
buret stepper motor during the injection in terms of milliseconds per step. The number of
steps corresponds to the injection volume and syringe size according to the relationship:
The duration of the injection is the number of steps multiplied by the injection rate
setting. For example, if a 100 µL syringe is used to make an injection of 5 µL, and the
injection rate setting is 35, the duration of the injection is:
Figure 5-6: The Settings Dialog Box.
7000 x
Size
Syringe
VolumeInjection
Steps =
Equation 5-1