2 operation – INFICON SQM-242 Thin Film Deposition Controller Card Operating Manual User Manual
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SQM-242 Operating Manual
5.2 Operation
Send All. . . . . . . . . . . . . . . . . . . . . . Sends all of the stored parameters to the
SQM-242 card(s) in preparation for a Read 
command. Normally you will click Send All to 
initialize the card, then make individual 
Sensor and Output setting changes as 
needed. Current settings are stored in an INI 
file in the application directory on exit from 
the program. 
Show Sensors / Show Outputs . . . Toggles the card reading area between
displaying individual sensor readings, and 
the average of all sensors assigned to an 
output. 
Read/Stop . . . . . . . . . . . . . . . . . . . . Starts and stops the SQM-242 card(s) from
measuring and controlling deposition. When 
the card is stopped, all outputs are set to 
zero. 
Mode . . . . . . . . . . . . . . . . . . . . . . . . Alternates between reading sensors and
simulating sensor readings. Simulate mode 
is useful for training purposes, since no 
sensors (or even an SQM-242 card!) need to 
be installed. 
In Simulate mode, sensors will not indicate a 
rate reading until the output power reaches at 
least 50%. Also, we introduce some noise 
into the readings in Simulate to better mimic 
an actual deposition process. 
Init . . . . . . . . . . . . . . . . . . . . . . . . . . Enter card initialization values, then press
the Init button to send the values to the 
SQM-242 card(s). This must be done before 
sending any other settings. The values will 
be saved on exit from the program. 
Zero . . . . . . . . . . . . . . . . . . . . . . . . . Sets the thickness reading of the selected
sensor to zero. You can select a specific 
sensor to zero all sensors on a card, or all 
sensors on all cards using the Card/Sensor 
dropdown boxes. First select the sensor to 
be zeroed, then click Zero.
