6 - 9
PN 074-550-P1D
SQC-310 Operating Manual
Rate, Thickness, and
Frequency readings are
noisy.
Excessive cable length
between oscillator and
crystal.
In-vacuum cable length
should not exceed 78.1 cm
(30.75 in.).
Use the 15.2 cm (6 in.) cable
between oscillator and
feedthrough.
Electrical noise is being
picked up by cables
connected to SQC-310.
Locate the sensor, oscillator
cables, source output cables,
I/O cables, communications
cable, and line cord at least
30.5 cm (1 ft.) away from high
voltage / high power cables
and other sources of
electrical noise.
Inadequate system
grounding.
Ground wires or straps
should be short with large
surface area to minimize
impedance to ground.
Ground wires or straps
should connect to an
appropriate earth ground
(refer to section 1.2.3 on
page 1-3).
Table 6-1 Symptom/Cause/Remedy Chart (continued)
SYMPTOM CAUSE REMEDY
To Next Page
Loading...
