Binder MK 115, Operating Manual

Page: 119 / 159

MK / MKT (E5) 03/2019 page 119/158
Fault description Possible cause Required measures
Refrigerating performance
No or low refrigerating perfor-
mance.
Ambient temperature > 25 °C /
77°F (chap. 3.4).
Select cooler place of installation.
Compressor not turned on.
Contact BINDER service. Electro-valves defective.
No or not enough refrigerant.
No refrigerating performance;
notification “Preheat phase” on
the controller display.
MK 56: Main power switch (1)
turned on less than 1 hour
before operating the chamber.
Turn on the main power switch (1) at
least one hour before operating the
chamber.
MK / MKT 115, 240, 720: Main
power switch (1) and/or rear
power switch (12) turned on
less than 1 hour before operat-
ing the chamber.
Turn on the main power switch (1)
and/or the rear power switch (12) at
least one hour before operating the
chamber.
Condensation
Condensation at the samples.
Heating-up phase without anti-
condensation protection. Use the anti-condensation protection
(chap. 18).
Condensation or icing at the sides
of the inner chamber.
Set-point for a long time below
ambient temperature, icing in
the preheating chamber.
Defrost the chamber.
Condensation at the samples or
at the sides of the inner chamber;
notification “Preheat phase” on
the controller display.
MK 56: Main power switch (1)
turned on less than 1 hour
before operating the chamber.
Turn on the main power switch (1) at
least one hour before operating the
chamber.
MK / MKT 115, 240, 720: Main
power switch (1) and/or rear
power switch (12) turned on
less than 1 hour before operat-
ing the chamber.
Turn on the main power switch (1)
and/or the rear power switch (12) at
least one hour before operating the
chamber.
Controller
No chamber function
(dark display).
Display in standby mode. Press on touchscreen.
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).
Menu functions not available.
Menu functions not available
with current authorization level.
Log in with the required higher au-
thorization or contact BINDER ser-
vice to obtain an activation code.
No access to controller Password incorrect. Contact BINDER service.
Chart recorder function: meas-
ured-value memory cleared, in-
formation lost. New setting of storage rate or
scaling (minimum and/or max-
imum) (chap. 16.2). Change the storage rate or scaling
ONLY if the previously registered
data are no longer required.
Controller does not equilibrate to
setpoints entered in Fixed value
operation mode
Controller is not in Fixed value
operation mode. Change to Fixed value operation
mode.
Controller does not equilibrate to
program set-points.
Controller is not in program
operation mode, or program
delay time is running.
Start the program again. If appropri-
ate, wait for the program delay time.
Program duration longer than
programmed. Tolerances have been pro-
grammed.
For rapid transition phases, do NOT
program tolerance limits in order to
permit maximum heating, speed.