
9 | Troubleshooting and Error Messages
INFICON
44 / 67
074-733-P1A IMM-200 Operating Manual
SYMPTOM
CAUSE
REMEDY
d. Check for thermally
induced electrical shorts or
open conditions.
c. Using an ohmmeter or
DMM, check for electrical
continuity in the sensor
cable, connector, contact
springs, connecting wire
inside sensor, and
feedthroughs.
d. Using an ohmmeter or
DMM, check for electrical
continuity in the sensor
cable, connector, contact
springs, connecting wire
inside sensor, and
feedthroughs.
3. The crystal does not
oscillate or oscillates
intermittently (both in
vacuum and in air).
a. There is intermittent or
poor electrical contact (the
contacts are oxidized).
b. The leaf spring has lost
retentivity (ceramic
retainer, center insulator).
c. There is RF interference
from the sputtering power
supply.
d. The cables are not
connected or are
connected to the wrong
input.
a. Use an ohmmeter or
DMM to check electrical
continuity. Replace the
ceramic retainer.
b. Bend the leaves to
approximately 45
o
. Refer to
the appropriate sensor
manual.
c. Verify earth ground. The
ground strap should be
adequate for RF ground
(solid copper strap with a
5:1 length:width ratio is
recommended). Change
the location of IMM-200
and move the oscillator
cabling away from RF
power lines. Connect the
IMM-200 power supply to a
different power line.
d. Verify that there are
proper connections.
Содержание IMM-200
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