42
AUTOMATIC CO
2
CYLINDER CHANGEOVER
The MCO-21GC detects that there is no more CO
2
gas in a cylinder when the CO
2
density in the chamber
does not increase for a while even after opening the CO
2
gas valve in the incubator. The supply line may
also be switched for other reasons even though there is gas left in the cylinder: blocking or restricting of
gas tube, reduction of CO
2
gas pressure, or improper opening of CO
2
gas cylinder. Always check the gas
quantity in the cylinder before disconnecting it.
Following shows the procedure to change the CO
2
gas supply line manually. (Only when MCO-21GC is
installed.)
(Example: Change of CO
2
gas cylinder from B to A)
Operation
Key
operated
Indication after operation
CO
2
gas supply
line indicator
A B
1
(Gas cylinder B is currently
used.)
CO
2
gas supply line indicator B
is ON.
2
Press CO
2
gas supply line
switching key once.
(Pressing the key again
selects gas cylinder B)
The CO
2
gas supply line
indicator B changes OFF,
The CO
2
gas supply line
indicator A changes ON.
3
(Gas cylinder A is currently
used.)
CO
2
gas supply line indicator A
is ON.
: indicator ON
: indicator OFF
