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MKF / MKFT (E5) 06/2020 page 117/176
In climatic operation (with humidity) the preset temperature and humidity values must be situ-
ated within range A in order to achieve optimum regulation.
In the short-term (max. 24 hours), set points in the discontinuous range (range B) can also be
targeted.
On the edges of the control range (ranges A + B) the regulatory accuracies of ± 2.5 % r.H.
cannot be guaranteed.
With temperature and humidity set-points outside ranges A and B, humidification control is
automatically turned off. Humidity keeps being measured by the sensor and displayed, but
may deviate in case of condensation.
The chamber is equipped with a door heating system to prevent condensation in the door area.
Operating the chamber at humidity values > 70 % r.h. for a long period may lead to corrosion on the
housing.
NOTICE
Danger of corrosion on the housing due to condensation by excess humidity.
Damage to the chamber.
Dry the chamber completely before shut-down:
• Set the humidity to 0 % r.h. The humidity system must be activated.
• Set the temperature set point to 60 °C / 140 °F (Manual mode). Let the chamber op-
erate for approx. 2 hours with closed door. Remove the access port plugs.
• Only then, shut down the chamber
at the main power switch (1) and close the water
supply tap.
Having turned off the chamber by the main power switch (1), always close the water supply
tap.
If you operate the chamber at high humidity and then immediately turn off the chamber, the internal
wastewater collector may overflow due to the condensate. This may lead to the emergence of water at
the chamber.
NOTICE
Danger of water emerging at the chamber due to the overflow of the internal
wastewater tank by condensate.
Damage to the surroundings of the chamber.
∅ Following high humidity operation, do NOT directly turn off the chamber.
Pump off the condensate before shut-down:
•
Set the humidity to 0 % r.h. The humidity system must be activated. Operate the
chamber for at least 2 hours.
•
Only then, shut down the chamber at the main power switch (1) and close the water
supply tap.
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