Inficon SQC-310 User Manual

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PN 074-550-P1D
SQC-310 Operating Manual
6.6 Persistent Crystal Fail Indication
OSC-100A oscillators have a test feature to help isolate persistent crystal fail
problems (see Figure 6-2). To activate the test feature, press the Push to Test
button using a small, pointed object, such as a pen or small screwdriver. This
connects the internal test crystal to the circuit instead of the normal Sensor
connector. If SQC-310 and the oscillator are functioning correctly, the Sensor
Information will display a Frequency of approximately 5.5 MHz while this button
is depressed. Once the Push to Test button is released, the oscillator returns to
normal operation and the internal test crystal is no longer in use.
If the Sensor Information screen displays a Frequency of approximately 5.5 MHz
while the Push To Test button is depressed, the problem has been isolated to be
in the path between the oscillator and the sensor head. If the Sensor Information
screen continues to display Frequency of zero while the Push To Test button is
depressed, the problem is either the programming of the sensor selection, in the
electronics of the oscillator, or SQC-310.
Figure 6-2 OSC-100A oscillator

Inficon SQC-310 Specifications

General

Brand	Inficon
Model	SQC-310
Category	Controller
Language	English