Caron 7403-33 - Manual (Page 15)

7400 Series Operations Manual Rev A 07/25/14 Page 15 of 83
High concentrations of carbon dioxide can
cause asphyxiation. The use of CO
2
monitors
and alarms is recommended for areas where
CO
2
can collect.
The CO
2
gas supply should be 99% pure and
should not contain a siphon tube. Gas pressure
to the unit must be regulated to 15-20PSI.
Failure to do so could cause tubing to burst.
Use only distilled or deionized water with a
resistivity between 50K
-CM and 1M-CM and
a pH of greater than 6.5. Using water outside
this range will void your warranty.
Do not use water that contains chloramines.
Chloramines can damage internal rubber
gaskets resulting in leaks.
Fill water pan (also HUMD305, HUMD306)
A water pan is used to provide elevated humidity levels inside the incubator. This
feature is standard on 7400 models (and optional for the others). Using the handles
provided, remove the empty water pan from the bottom of the incubator. Fill with 5 to 6
liters of water. Re-insert water pan back into the incubator.
Connecting a CO
2
supply
The CO
2
supply should be 99% and not have si phon tubes. CO
2
pressure should be
regulated to 15-20 psi. CO
2
tank regulators REGL101 can be purchased through
CARON customer service. Once the cylinder regulator is installed, connect the outlet of
the regulator to the hose barb fitting using the tubing and clamps provided. An inline
HEPA filter is provided to remove any contaminants in the CO2 gas supply. Check the
connections closely for leaks.