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CB / CB-UL, CBF / CBF-UL (E7) 07/2021 Page 34/197
4.2 Permadry™ water pan
The Permadry™ system developed by BINDER is an effective and easy to handle system that ensures
high humidity inside the chamber without any condensation forming on the inner surfaces. The Permadry™
water pan consists of two pans in which the outer one is heated and the inner one cooled. With the slight
difference of temperature caused by that cooling, the central pan is the specific point for condensation of
the surplus humidity. Therefore, all other inner surfaces remain dry.
Incubator size 56 Incubator size 170 Incubator size 260
Figure 9: Permadry™ water pan
• Put the Permadry™ water pan on the bottom of the inner chamber in a way that both notches lock into
place.
• The front side of the Permadry™ water pan for incubators size 170 / 220 is marked “FRONT”.
Figure 10: Letters “FRONT” indicating the front of the Permadry™ water pan
for incubators size 170 / 220
• Please make sure that the Permadry™ water pan has firm contact to the inner chamber bottom and
rests tightly on it (notches locked into place).
• Fill only the outer pan with distilled, sterilized water up to the filling level marking on the edge of the inner
pan.
Maximum filling quantity of the outer pan: incubator size 56: approx. 0.7 liters, incubator size 170:
approx. 1.3 liters, incubator size 260: approx. 2.0 liters.
Figure 11: Filling height line of the outer basin for incubators size
170 / 220
• We recommend cleaning and refilling the pans 2 to 3 times a week. For evacuation, remove the
Permadry™ water pan.
• We recommend using distilled, sterile water to achieve optimum growth results. Any corrosive damage
that may arise following the use of water of different quality or by additives is excluded from the liability
agreement.
• If required, you can add microbiologically inhibiting substances such as copper chips, copper sulfate or
ethylene diamine tetra-vinegar acid (EDTA) in a concentration of 1 to 5 mmol/l.
Empty the Permadry™ water pan before moving the chamber. In case of the contents spilling, immediately
shut down the chamber and dry it carefully and completely.
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