Caron GASG201 - Manual (Page 8)

Model GASG201 Operations Manual Page 8 of 13
Rev D 01/18/2009
The CO
2
/N
2
gas supply should be 99.5% pure
and should not contain a siphon tube. Gas
pressure to the unit must be regulated to less
than 30 psig. Failure to do so could cause
tubing to burst.
SECTION 2 -- INSTALLATION
The model GASG201 Stand Alone Gas Guard from CARON is designed to allow two
tanks of either CO2 or N2 to be connected to an incubator requiring approximately 15
psig of gas pressure. The unit is designed to automatically switch from the primary tank
to the secondary tank when low gas pressure of approximately 10 psig is detected on
the primary tank. This allows for a continuous supply of CO2 or N2 to an incubator after
the primary tank is empty. In addition, the user is notified of a tank empty scenario via
an audible and visual alarm.
Connecting a CO
2
/N
2
supply
The CO
2
/N
2
gas supplies must be equipped with two stage regulators to ensure that the
incoming gas to the GASG201 is regulated to appropriate levels. The high pressure
stage should have a 0-2000 psig range, and the low pressure gauge should adjust from
0-30 psig. When connecting the gas supplies, adjust each tank output to 20-25 psig. If
the appropriate regulators are not available, contact CARON customer service to
purchase them.
High concentrations of many gases can cause
asphyxiation. The use of monitors and alarms is
recommended for areas where gas can collect.
Model GASG201 is designed to work with N2 or
CO2. Do not connect this unit to a combustible gas
source.