Chapter 2
SQM-242 CoDep
2-6
2.4 File Menu
Open:
Selects a setup (.DAT) file to be used for thin film deposition.
Save As:
Saves the current setup to disk. It can replace the information in the current
file or be saved under a different name. Multiple setups can be saved as different files.
This is convenient for storing different configurations, materials, rates, etc.
Exit:
Exits the SQM-242 program. Before closing the program, you are prompted to
save changes. Select Yes to overwrite the current setup (.DAT) file, no to abandon any
changes, or Cancel to return to the program.
2.5 View Menu: Readings
Selecting the View menu, then Readings, displays a grid of all sensor and analog
inputs. It also provides a convenient place to view the overall input/output configuration
of your system.
Unlike the main screen, which may show the average of several sensors assigned to an
output, this screen displays raw input readings. The size of the grid is adjusted to
display only the components installed in your system.
In the sensor grid, the Life column displays the % life remaining for each sensor, based
on the sensor Min/Max values entered in the Setup screen.
In the analog input grid, two readings are displayed. Volts shows the measured voltage
on the analog input, while Units displays the reading in the units displayed on the main
screen (i.e. CFM). The next section explains how to define analog input units.
The last column shows the function assigned to each input – output control, setpoint
monitor, or unassigned. If an input is assigned to a control loop, that output is listed.
An input assigned as a setpoint monitor (see the next section) shows Monitor. If an
input is assigned as both a control input and a setpoint monitor, only the control function
is listed. Unassigned inputs show None.
