INFICON SQM-242 Thin Film Deposition Controller Card Software Operating Manual - Manual (Page 53)

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SQS-242 Operating Manual
3.5.4.3 Analog Tab
Figure 3-20 Analog tab
The SAM-242 analog input card measures DC voltages in the +/-10 volt range.
These voltages may represent temperature, flow, or any other process variable.
The analog tab allows you to modify the display to show values in the desired units,
using a linear (y = mx + b) transformation.
For example, assume you have a temperature transmitter that sends 0V at 0 C and
1V at 100 C. To display temperature in F, set the Gain to 180, Offset to 32, and
Units to DegF. The SQM-242 will display setpoints and measurements associated
with the analog input in degrees F.
To leave the analog input display in Volts, set Gain = 1 and Offset = 0.
Name: A meaningful name assigned to each analog input. For clear display, keep
the name to less than 8 characters.
Gain: The gain term for transforming voltage to measured units. This is the m term
in y = mx + b.
Offset: The offset term for transforming voltage to measured units. This is the b
term in y = mx + b.
Units: The units that you wish to display for the analog input.