Eppendorf Galaxy CO2 Sensor User Manual
Page 88
Equipment options
Galaxy
®
170 R/170 S CO
2
Incubators
English (EN)
88
To minimize the thermal gradient within the chamber, the instrument you place inside the chamber should
be placed on the bottom shelf. The heat dissipated by the equipment should be as low as possible to
minimize thermal disturbance to the chamber. Some shakers, stirrers etc., have been specifically designed
to give a low heat output for use in incubators. The maximum heat that can be dissipated within the
chamber is variable, depending on the difference between the ambient and programmed temperatures. If
the heat dissipated is too great, the chamber will tend to overheat. If this happens, the control parameters
can be adjusted to compensate.
To connect to the socket (see Fig. 12-8 on p. 89) inside the chamber, a power cable with a matching IP66
plug is supplied. This power cable should be fitted by a qualified person to the equipment or device to be
used inside the chamber. If the cable cannot be fitted, contact your distributor, giving details of the
connectors required, so they can supply a suitable lead.
NOTICE! Risk of material damage
Working with electrical power inside a humid environment (where the incubator is
humidified) can cause damage. The following precautions should be observed:
The instrument or equipment, and its external connections, to be used inside the chamber
should be specified as suitable for use in a humid environment, and at 37 °C (see also
“Using Powered Equipment within the Chamber”). If in doubt, consult with the
manufacturer of the equipment.
Always ensure the connections are properly and securely made.
Be sure to switch OFF the green illuminated switch on the front left of the incubator before
connecting or disconnecting equipment inside the chamber, if equipped with optional IP66
socket.
The Sealing Cap must always be in place when the socket is not in use.
Both the incubator and the IP66 enclosure must be plugged into an electrical supply
protected by an RCD device. Any device chosen must be a self-resetting type which will
automatically reconnect power to the incubator as soon as power is restored following a
power failure.
If the incubator is to be used humidified, the normal RH level is ~ 95 %, so any electrically
powered equipment or device to be used inside the chamber must be designed for use in a
humid atmosphere. Consult the manufacturer of the equipment to ensure that it is suitable.
Any heat-generating equipment used inside the chamber will naturally affect the temperature
performance of the incubator. For this reason, if you plan to use equipment which may
generate heat in the chamber, we recommend equipping the incubator with the optional
cooling system (see