Supply Connections; Fig. 9 Supply Connections - Kendro HERAcell 240 Operating Instructions Manual

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HERAcell 240 CO Incubator Operating Instructions
2
5. System Description
5.5

Supply Connections

All supply connections are mounted on the circuit ca-
binet on the rear of the unit.
Gas Connection:
The gas supply between the unit and the gas supply
system is established using the connecting hose pro-
vided. CO is supplied to the unit via the connection
2
piece [2] on the sterile filter [1] at a predefined, unal-
terable pressure set between 0.8 (min.) and 1.0
(max.) bar.
Before entering the sample chamber, the gas flows
through the sterile filter [1] which provides a degree of
separation of 99.998 % based on a particle size of 0.3
µm (HEPA filter quality).
Nameplate:
The nameplate [3] contains information concerning
the supply connections.
RS 232 Interface:
The RS 232 interface [4] can be used to connect the
incubator to the serial port on a PC. This connection
provides computer-aided acquisition and documenta-
tion of the most important operational parameters
(temperature, CO concentration, error codes, etc.).
2
The interface protocol is detailed in Section 6.5.
Alarm Contact:
The unit can be connected to the customer's own,
external reporting system (e.g., telephone system, fa-
cilities control system, optical or audible alarm). A ze-
ro-potential alarm contact [5] has been installed on the
unit for this purpose and a connector is included in the
accessories package.
Power Cord:
The power cord [6] uses a standard grounded plug.
The power cord connector also contains a two-fuse
holder.
Version: 03.2001 / 50065640
Figure 9
Fig. 9, Supply connections
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