VACUUBRAND PC 3012 VARIO User Manual
Page 53
Documents are only to be used and distributed completely and unchanged. It is strictly the users’ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999164 / 19/05/2009
Fault
Possible cause
Remedy
❑ Warning triangle and
pump symbol are flash-
ing, six blips*.
➨ NT VARIO / VARIO-B pump
and VMS** (Vacuum Manage-
ment System) connected?
✔ Remove VMS. Restart con-
troller.
➨ Fault at the NT VARIO /
VARIO-B pump?
✔ Check pump, restart control-
ler.
❑ Clock symbol is flashing. ➨ Preselected process time is
over?
✔ Confirm by pressing key
START/STOP.
❑ Venting valve does not
respond, valve symbol is
displayed.
➨ Venting valve contaminated? ✔ Clean valve.
❑ Operation mode ”Vac
control”: Control stops,
”arrow up” is flashing.
➨ Preset maximum pressure
exceeded?
✔ Confirm by pressing key
START/STOP. Adapt maxi-
mum pressure value if nec-
essary.
❑ Operation mode ”Pump
down”: Control stops, ”ar-
row down” is flashing.
➨ Pressure below preset mini-
mum pressure?
✔ Confirm by pressing key
START/STOP. Adapt mini-
mum pressure value if nec-
essary.
❑ Controller does not
respond when pressing
keys (except ON/OFF).
PC symbol is displayed.
➨ Controller in remote mode?
✔ Control CVC 3000 via in-
terface or switch off remote
mode.
❑ Controller does not
respond when operat-
ing any keys. No change
after switching off/on.
✔ Contact local distributor.
❑ Pump does not start or
stops immediately. Warn-
ing triangle and pump
symbol are flashing.
➨ Pump has been exposed to
condensate?
✔ Allow pump to run for some
minutes at maximum speed
with atmospheric pressure at
the inlet.
➨ Overpressure in the exhaust
line?
✔ Open exhaust line, ensure a
free (pressureless) outlet line.
❑ Pump does not achieve
ultimate vacuum or nor-
mal pumping speed.
➨ Wrong setting at controller?
✔ Select operation mode ”Pump
down” with speed set to ”HI”
and check again.
➨ Centring ring not correctly po-
sitioned or leak in the pipeline
or vacuum system?
✔ Check pump directly - con-
nect CVC 3000 directly at
pump inlet - then check con-
nection, pipeline and vacuum
system if necessary.
➨ Long, narrow line?
✔ Use lines with larger di-
ameter, length as short as
possible.
➨ Pump has been exposed to
condensate?
✔ Allow pump to run for some
minutes at maximum speed
with atmospheric pressure at
the inlet.
➨ Deposits have been formed
inside the pump?
✔ Clean and inspect the pump
heads.