INFICON SQM-242 Thin Film Deposition Controller Card Operating Manual User Manual
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SQM-242 Operating Manual
Output Connections
The SQM-242 output connection is via a 1/4" Stereo Phone Jack. A standard 1/4"
Stereo Phone Plug is shown below (with outer collar removed to show the
contacts). Output 1 is on the ring, Output 2 is on the tip, and a common ground is
on the sleeve.
Figure 2-4 1/4" Stereo Phone Jack
Connect the SQM-242 output to your evaporation power supply, recorder, or other
equipment as described in the equipment’s operating manual.
CAUTION
Special care must be taken in connecting the SQM-242
card output to the input connector of your equipment.
Failure to understand and follow the equipment
manufacturer’s instructions can result in damage to the
equipment and/or SQM-242 card.
The SQM-242 output is 0 to +/- 10 V (dc). See
of this manual for
instructions on setting the SQM-242 output Full Scale level to match your power
supply. If your equipment needs a 4-20 mA control signal, you must obtain a
voltage-to-current converter.
NOTE: If you are using the SQM-242 as a monitor only, no output connection is
needed.
Ground Connection
The chassis of all control components should be tied to a common earth ground
using a low resistance cable. This is particularly important in high noise E-Beam
systems.
SLEEVE
Chan. 1 (Ring)
Chan. 2 (Tip)
Ground
(Sleeve)