BINDER VD 23 - Manual (Page 94)

VDL (E2.1) 04/2014 page 94/107
Fault description
Possible cause Required measures
Heating (continued)
Chamber heating permanently,
set-point not held.
Controller defective.
Contact BINDER Service. Pt 100 sensor defective.
Semiconductor relay defective
Controller not adjusted.
Calibrate and adjust controller.
Deviations from the indicated
heating-up times.
Oven fully loaded.
Charge the oven less or consider
longer heating-up times.
Deviations from the temperature
set-point in equilibrated state.
Invalid calibration
Use the delivered expansion racks
only. Do NOT change between
aluminum and stainless steel racks
Wrong temperature value
measured during calibration.
Reference temperature sensor
has insufficient contact to expan-
sion rack.
Fix the reference temperature sen-
sor with thermal conductive paste
or adhesive aluminum tape.
Leakage current when using a
thermo element not electrically
insulated
Mount a thermo element electrically
insulated from the rack.
Vacuum
Vacuum not held.
Door gasket defective. Replace door gasket,
Safety glass panel defective. Replace safety glass panel.
Gaskets of small flange connec-
tions (universal eccentric ring)
defective.
Replace gaskets of small flange
connections.
Inner tube connection leaky. Contact BINDER Service.
Controller
No indication on the controller
display after turning on the ov-
en.
Oven not connected to com-
pressed air supply.
Connect the oven to the com-
pressed air supply before start-up.
Program doesn’t run correctly
after it is started.
Pressure > 125 ± 25 mbar / 3.69
±0.74 inHg).
A vacuum of 125 ± 25 mbar / 3.69
±0.74 inHg) or below is needed for
heating release. Only then start the
program.
Program duration longer than
programmed.
Inappropriate tolerances have
been programmed.
For rapid transition phases, do NOT
program tolerance limits in order to
permit maximum heating speed.
Program stops one section too
early.
Program line is incomplete.
When programming, define the end
value of the desired cycle by adding
an additional section with a section
time of at least one minute (with
setting “ramp”).
Programs have been deleted.
Change from 2 programs to 1
program or vice-versa
When changing, ensure that the
programs are no longer needed.
The controller returns to Normal
Display from any level.
No button was pressed for more
than 120 sec.
Repeat entries, enter the values
rapidly.
Message RANGE ERROR CH1
in Normal Display in Display 2
Sensor rupture between sensor
and controller
Contact BINDER Service.
Ramp temperature transitions
are only realized as steps.
Set-point programming type set
to “Step” in the User level (chap.
10).
Set the set-point programming type
to setting “Ramp” in the User level
(chap. 10).
Only qualified service personnel authorized by BINDER must perform repair.
Repaired units must comply with the BINDER quality standards.