Loading ...
Loading ...
Loading ...
MKF / MKFT (E5) 06/2020 page 120/176
When turning off the chamber following prolonged refrigerating below +5 °C / 41 °F, there is danger of
overflowing due to uncontrolled defrosting of icing on the evaporator.
NOTICE
Danger of overflowing due to uncontrolled defrosting of icing on the evaporator.
Damage to the surroundings of the chamber.
After several days of refrigerating below +5 °C / 41 °F:
∅ Do NOT directly turn off the chamber.
Manually defrost the chamber (see description above).
Then, shut down the chamber at the main power switch (1) and close the tap of the
water supply.
19. Anti-condensation protection via operation line
When operating the chamber without humidification, the anti-condensation protection condensates the
chamber humidity at the coldest point in order to avoid the samples becoming wet from condensation.
Anti-condensation protection is performed by the evaporator and can be programmed On/Off via opera-
tion line “Anti-condensation” in Fixed value and program modes.
Use the anti-condensation protection only if absolutely necessary to prevent condensation on
the charging material.
Use the anti-condensation protection only when operating the chamber without humidification.
When the anti-condensation protection is enabled the refrigeration machine keeps operating within warm-
ing-up phases (On = refrigeration machine operating, Off = refrigeration machine off).
• If possible, use the anti-condensation protection only during warm-up phases. If necessary, you
can also activate it during hold phases.
• Do NOT use the anti-condensation protection above a temperature set-point of +20 °C / 68°F
maximum.
To obtain optimal warming results without condensation on the samples, program a heating gradient of
approx. 0.5 °C/min.
Example:
W/°C
t/min.
00
01
02
03
-40
-20
0
20
40
60
80
120
180
380
04
ON
OFF
t/min.
Minimum
tolerance
Maximum
tolerance
Operation line “Anti-condensation”
Depending on size, material, and shape of the charging material and on the heating-up rate, condensa-
tion may form despite the activated anti-condensation protection. This condensation is, however, reduced
compared to the state without anti-condensation protection.
Loading ...
Loading ...
Loading ...