BINDER MK 115 - Manual (Page 69)

MKF + MKFT (E3.1) 07/2014 page 69/114
10. Bedew protection facility (Operation line 1)
When operating the unit without humidification, the bedew protection condensates the chamber humidity
at the coldest point in order to avoid the samples becoming wet by condensation. Bedew protection is
performed by the evaporator and can be programmed On/Off via operation line 1 in Manual Mode
(HAND) and in Program Mode (AUTO).
Use the bedew protection only if it is necessary to prevent condensation at the charging mate-
rial.
Use the bedew protection only when operating the unit without humidification.
When the bedew protection is enabled (operation line 1 = On) the refrigeration machine keeps operating
within warming-up phases (On = refrigeration machine operating, Off = refrigeration machine off).
•
If possible, use the bedew protection only during warm-up phases. If necessary, you can also
activate it during hold phases.
• Do NOT use the bedew 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 1 = bedew protection
In the program table, the state of opera-
tion line 1 for bedew protection is repre-
sented in the column “Sk”:
On = 0000000
1
Off = 0000000 0
Example:
Operation line 1 is activated in the first
program section and remains active up
to 20 °C / 68°F.
Then the refrigeration machine turns off
automatically.
PGM
08:43:55 15.12.13