Memmert INCO 246/246 med CO2 Incubators (Generation 2003) - Manual (Page 37)

37
Operation and control
CO
2
IN 1 IN 2 OUT
After the setpoint temperature has been reached,
the CO
2
concentration is displayed in %, depending
on the setting.
IN 1
indicates that gas bottle 1
is active.
Is displayed if the CO
2
concentration exceeds the
defined setpoint by at least 1 % for more than 3
minutes. If the concentration is higher, the CO
2
display and the icon flash.
In this case you should open the door for 30 sec.
and wait to see if the controller steadily adjusts
to the setpoint. If the error occurs again, contact
Customer Service.
This monitoring function only starts to work
once the CO
2
setpoint has been reached.
CO2 empt is displayed if gas bottle 1 and/or 2 is/are
empty. In this case, you should connect new gas
bottles (see page 28 ).
The pressure in the gas bottles is a constant
approx. 57 bar at 20 °C ambient temperature. It
is not possible to determine how full the bottle
is through the pressure, since the pressure only
drops immediately before the bottle is com-
pletely empty.
The CO
2
supply is automatically interrupted when
the outer doors are opened. door open is indicated
in the text display.
on
off
2
e m p t y
is displayed if the N
2
supply is interrupted. In this
case, check if the N
2
bottle is correctly connected
and if the valve is open.
If that does not solve the problem, you should con-
nect a new gas bottle (see page 25 ).
Automatic switch-over of CO
2
gas bottles (only for models with comfort or premium
modules)
The automatic switch-over of gas bottles guarantees an uninterrupted supply with CO
2
gas
when two independent supply systems are connected.
► Gas bottle 1 is always the main supply bottle.
► Gas bottle 2 is always the reserve bottle.
Operation is only possible with one bottle. In this case it must be connected to IN1 (see also
Fig. 4 on page 13 ).