TELEVAC CC-10 - Troubleshooting; Error Message List

CC-10
INSTRUMENT MANUAL
Phone:(215) 947-2500 fax:(215) 947-7464 e-mail:sales@televac.com web site:www.televac.com
CC-10 MANUAL REV D
Page 38 of 40
Y
TELEVA
10.0 E rr o r m e ss a g e li s t
Error display
Malfunction
Treatment
ErrA
Atmosphere adjustment is tried at
inadequate pressure (perhaps in
vacuum)
Make sure the gauge is at
atmosphere before adjustment
ErrU
Zero adjustment is tried at
insufficient vacuum
Perform the zero adjustment in
sufficient vacuum
Erro
Crystal sensor oscillation error
Needs crystal sensor replacement.
Contact service agent.
AdEr
A/D converter error
Needs electronics repair. Contact
service agent
CALE
A/D converter calibration error
Needs electronics repair. Contact
service agent
`
EE Error
(scroll display)`
EEPROM error
Needs electronics repair. Contact
service agent
11.0 T r oub l e s hoo t i ng
Symptom
Possible Cause
Treatment
No display appears
Power failure
Check connector. Check power (24
VDC) supply
Pressure reading is
unstable
Contamination in the
sensor
Sensor cleaning
Pressure reading and HV
LED are blinking
Cold cathode sensor
is not ignited
(possibly the
pressure is low
when power is
turned on)
In low pressures cold cathode
sensor tend to take a little long time
to ignite. Wait until the pressure
reading appears.
Pressure display does not
decrease under 7.5E-3 Torr
Crystal zero is
shifted
Perform manual zero adjustment
when the pressure is below 4E-5
Torr