Memmert HCP 108, Operating Instructions Manual

Page: 30 / 48

HCP page 30
40°C
34°C
ASF alarm
ASF activated ASF activated
40°C
34°C
ASF-alarm
ASF activated ASF activated
33°C
15°C
°C
27°C
ASF set to
+/-3°C in
SETUP
13 Active humidity control (%rh) 13 Active humidity control (%rh)
Active humidity control ensures that the set humidity is reached rapidly without the use ofwater dishes.
During the heating-up phase the humidity control is initially de-activated. Humidification and
dehumidification control starts to operate approx. 5 minutes after the set temperature has been reached.
The setpoint can be adjusted between 20% rh and 95% rh. The humidity setpoint can be set or altered
during the stabilisation phase. Humidification operates by passing water vapour through a dosing pump
into the working chamber. In order to prevent bacteria formation the steam is first heated to approx.
140°C. De-humidification consists of the supply of dry air through sterile filter.
If no humidity is required in the chamber, humidity control can be de-activated by the setting
OFF
.
is indicated if the humidity exceeds the selected setpoint for longer than
30 minutes. The humidity indication then flashes as well as the symbol
. In this case open the door for 30 sec and wait whether the controller
controls in a stable manner on the setpoint. If the fault is repeated, contact
customer service.
(Note: this monitor function becomes activated only after the humidity
setpoint has been reached for the first time)
is indicated when the water container is empty.
Humidification is interrupted automatically when the outer door is opened.
The text display shows
DOOR open
.
Setpoint changed = ASF de-activated automatically Setpoint changed = ASF de-activated automatically
If the temperature setpoint is altered, the automatic temperature monitor is automatically de-activated
temporarily (see in the example the setpoint is changed from 37°C to 30°C) until the tolerance margin of
the new temperature setpoint is reached (see in the example below: the ASF is re-activated at 30°C, +/-
3°C).