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AUTOMATIC CO
2
CYLINDER CHANGEOVER
An automatic switcher for the CO
2
gas supply lines (MCO-21GC) is available as an optional accessory.
This kit switches the gas supply lines when one CO
2
gas cylinder becomes empty.
Note: The installation of the MCO-21GC must be performed only by qualified service personnel.
Install the MCO-21GC and then perform the following procedure
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1. Connect the CO
2
gas pipes to ports A and B. Connecting ports for CO
2
gas pipes are located on the
left back of the Incubator. (Refer to page 8).㩷㩷
Note: Only port A can be used when the MCO-21GC is not installed. There will be 2 ports, ports A and B,
after the MCO-21GC is installed.㩷
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2. Connect a CO
2
gas cylinder equipped with a gas pressure regulator to each gas pipe. Refer to page 14
for information on connecting the gas cylinders. (“Gas cylinder A” is the CO2 gas cylinder connected to
the CO
2
gas pipe connected to port A, and “gas cylinder B” is the CO2 gas cylinder connected to the CO
2
gas pipe connected to port B.)
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3.
Open the valves of both gas cylinders.
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4. The current CO
2
gas supply line is displayed on the Top Display.
(“A” and “B” will be displayed only when the MCO-21GC is installed. Nothing will be displayed if
MCO-21GC is not installed.)
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5. 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. It switches
the gas supply line when it detects that there is no more gas. At that time, the following indications of
switching the gas cylinder are provided.㩷
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Message display field Display of gas supply
When CO
2
gas supply line switches
automatically (Only when MCO-21GC
is installed)
Err01: CO
2
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Gas Empty is
displayed.
The character for gas supply line
that is empty will flash
The gas supply line that is
currently being used is displayed
in reverse video.
䃂To silence the buzzer, press the BUZZER Key. The alarm condition is cleared and normal operation
continues.
Current CO
2
gas supply line
1
T e
m p 3 7 . 0
o
C C O 2 5 . 0 %
A B
2
3
4
5
S t a t u s
6
O K
7
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