Binder KB 115 (E4), Operating Instructions Manual

Page: 126 / 149

KB (E4 + E6) 02/2017 page 126/148
Fault description Possible cause Required measures
Heating (continued)
Too low temperature. Chamber
doesn’t heat up.
Heating defective.
Contact BINDER service.
Notification
“Heating active”.
Semiconductor relay defective.
Too low temperature. With op-
tion safety controller class 3.3:
undertemperature safety control-
ler class 3.2 responds Safety controller set-point value
exceeded.
Check setting of temperature set-
point and of the safety controller
class 3.2 set-point. If appropriate,
select suitable value.
Alarm message:
“Safety controller Under-
temperature” Controller defective.
Confirm the alarm (chap. 14.4).
Contact BINDER service.
Safety controller defective.
Too low temperature. Tolerance
range alarm: Having reached the
set-point, the temperature devi-
ates by more than +/- 2 °C from
the set-point for more than 10
minutes,
or the temperature
doesn’t reach the tolerance range
within 3 hours from turning on the
chamber or closing the door.
Chamber door not properly
closed. Confirm the alarm (chap. 14.4).
Completely close chamber door.
Door gasket defective.
Confirm the alarm (chap. 14.4).
Replace door gasket.
Alarm message
“Temp. range”
Controller defective.
Confirm the alarm (chap. 14.4).
Check the controller function. If
appropriate, contact BINDER ser-
vice
Too low temperature. Set-point
temperature is not reached after
specified time.
Chamber door not properly
closed.
Completely close chamber door.
Door gasket defective. Replace door gasket.
Controller not adjusted. Calibrate and adjust controller.
Very long heating-up times. Chamber fully loaded.
Load the chamber less or consider
longer heating-up times.
Refrigerating performance
Temperature set-point tempera-
ture is not reached after specified
time.
Chamber door not properly
closed.
Completely close chamber door..
Door gasket defective. Replace door gasket.
Controller not adjusted. Calibrate and adjust controller.
Low or no refrigerating
performance.
Notification:
“Refrigeration active”
Ambient temperature above
25 °C /
77 °F (chap. 3.4).
Select cooler place of installation.
Compressor not turned on.
Contact BINDER service. Solenoid valves defective.
No or insufficient refrigerant.
Too much external heat load. Reduce heat load.
Controller
Program duration longer than
programmed. Inappropriate tolerances have
been programmed.
For rapid transition phases, do
NOT program tolerance limits in
order to allow maximum heating
speed.
Program stops one section too
early.
Program line is incomplete.
When programming with setting
“ramp”., define the end value of the
desired cycle by adding an addi-
tional section with a section time of
at least one minute.