4
Description of the device
Operating Instructions | symphony 5.3 A – 06/2009
4
Description of the device
4
Description of the device
22
The outer door can only be closed after the glass door
has been latched properly.
4.6 Switchbox with supply interface
All supply connections are installed in the switchbox
at the rear of the device.
A
Gas connection:
Fig.7:
The gas supply line between the device and the
gas supply system is connected using the supplied
connecting hoses.
CO
2
is supplied to the device through a separate con-
necting sleeve [1].
The process gas must be supplied to the device at a
fixed pressure that has been preset within a range of
0.8 - 1.0 bar, this must remain unchanged.
Before the gas is fed into the work space, it flows
through a sterile filter with a separation rate of 99.97 %
for a particle size of 0.3
μ
m (HEPA filter quality).
Label:
Fig.7:
The label [2] contains information about gas
supply, an alarm contact terminal legend, and notes
about the electrical fusing of the device.
RS 232 interface:
Fig.7:
Via the RS 232 interface [3], the incubator can
be connected to the serial interface of a PC. This con-
nection allows the computer-aided acquisition and
documentation of the major operating parameters
(temperature, CO
2
concentration, failure codes, etc.).
Alarm contact:
Fig.7:
The device can be connected to an on-site,
external alarm system (e.g. telephone system, buil-
ding monitoring system, visual or acoustic alarm
system). For this purpose, a potential-free alarm con-
tact [4] is preinstalled in the device.
NOTE!
Alarm contact:
The alarm contact receives only messages
caused by work space atmosphere conditi-
ons (temperature or gas)!
Power supply connection:
Fig.7:
The power supply connection [5] of the device
Fig.7: Supply interfaces
