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MK / MKT (E5) 08/2020 page 118/162
22.3 Simple troubleshooting
Defects and shortcomings can compromise the operational safety of the chamber and can lead to risks and
damage to equipment and persons. If there are is a technical fault or shortcoming, take the chamber out of
operation and inform BINDER Service. If you are not sure whether there is a technical fault, proceed ac-
cording to the following list. If you cannot clearly identify an error or there is a technical fault, please contact
BINDER Service.
Only qualified service personnel authorized by BINDER must perform repair.
Repaired chambers must comply with the BINDER quality standards.
Fault description
Possible cause
Required measures
General
Chamber without function.
No power supply.
Check connection to power supply.
Check whether the chamber is
turned on at the main power switch.
Wrong voltage.
Check power supply for correct volt-
age (chap. 4.4).
Main power switch (1) not
turned on
Turn on the main power switch (1).
MK/MKT 115, 240, 720: Rear
power switch (12) not turned
on.
Turn on the rear power switch (12).
Chamber fuse has responded.
Check chamber fuse and replace it
if appropriate. If it responds again,
contact BINDER service.
Controller defective.
Contact BINDER service.
Nominal temperature ex-
ceeded by 20 °C due to cham-
ber failure. Over temperature
protective device (class 1) re-
sponds.
Heating
Chamber heating permanently,
set-point not maintained.
Semiconductor relay defec-
tive.
Contact BINDER service.
Pt100 sensor defective.
Controller defective.
Controller not adjusted.
Calibrate and adjust controller.
Chamber doesn’t heat up.
Heating element defective.
Contact BINDER service.
Semiconductor relay defective
Chamber doesn’t heat up when
turned on.
Safety controller responds.
Inner chamber temperature
has reached the safety con-
troller setpoint. Safety control-
ler set too low.
Acknowledge the alarm on the con-
troller. Check temperature setpoint
setting. If appropriate, select suita-
ble safety controller setpoint (chap.
12.2).
Safety controller (chap. 12.2)
defective.
Contact BINDER service.
Safety controller class 2 re-
sponds
Limit temperature reached.
Acknowledge the alarm on the con-
troller. Disconnect the chamber from
the power supply and let it cool
down. Detect cause and remove it.
Start up the chamber and check
control functions. If appropriate, se-
lect suitable limit value.
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