6 - 5
PN 074-550-P1D
SQC-310 Operating Manual
Frequency reading in
Sensor Information screen
is an incorrect value.
SQC-310 or oscillator is
malfunctioning.
Test the SQC-310 and
oscillator using the oscillator
test mode (see section 6.6 on
page 6-17).
Substitute a known good
SQC-310 (or other QCM).
Substitute a known good
oscillator.
Substitute a PN 760-601-G2
Sensor Emulator or a known
good sensor for the sensor.
Crystal Fail is displayed. Failed crystal, or no crystal in
sensor.
Install a new crystal.
Two crystals were installed or
crystal is upside down.
Remove extra crystal.
Reverse crystal orientation.
Inspect crystal for scratches;
if scratched, replace with
new crystal.
Built-up material at crystal
holder aperture is touching
the crystal.
Clean or replace the crystal
holder. Refer to the sensor
operating manual for
cleaning instructions.
Crystal frequency is not
within the frequency range of
SQC-310.
Use a crystal with starting
frequency appropriate for
SQC-310 frequency range.
Change the Min / Max
Frequency settings in the
System Menu screen.
Oscillator and sensor not
connected to the Sensor
channel(s) set to On in the
Edit Layer screen.
Connect oscillator and
sensor to all active Sensor
channel(s).
Table 6-1 Symptom/Cause/Remedy Chart (continued)
SYMPTOM CAUSE REMEDY