Automatic Co 2 Cylinder Changeover - Sanyo MCO-19M Service Manual

AUTOMATIC CO
An automatic CO cylinder changeover system (MCO-21GC) is available as an optional accessory. This
2
system switches the gas supply lines when one CO
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
1. Connect 2 gas tubes to connecting ports A/B for CO
located on the left back of the Incubator. (Refer to page 9).
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.
2. Connect a CO gas cylinder equipped with a gas pressure regulator to each gas tube. Refer to page 16
2
for information on connecting the gas cylinders. ("Gas cylinder A" is the CO2 gas cylinder connected to
the connecting port A for CO
connecting port B for N
3. Open the valves of both gas cylinders.
4. The current CO
2
("A" and "B" will be displayed only when the MCO-21GC is installed. Nothing will be displayed if
MCO-21GC is not installed.)
T e m p 3 7 . 0
1
2
３７.０
3
4
S t a t u s
5
O K
6
7
5. The MCO-21GC detects that there is no more CO
chamber does not increase for a while even after opening the CO
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.
When CO gas supply line switches
2
automatically (Only when MCO-21GC
is installed)
●To silence the buzzer, press the BUZZER Key. The alarm condition is cleared and normal operation
continues.
67
CYLINDER CHANGEOVER
2
gas pipe, and "gas cylinder B" is the CO2 gas cylinder connected to the
2
/O gas pipe.)
2 2
gas supply line is displayed on the Top Display.
o
C C O 2
Message display field
Err01: CO
displayed.
gas cylinder becomes empty.
2
gas pipe. Connecting ports for CO
2
Current CO gas supply line
2
5 . 0 % A B O 2
５.０
gas in a cylinder when the CO
2
gas valve in the Incubator. It switches
2
The character for gas supply line
that is empty blinks.
Gas Empty is
2
The gas supply line that is
currently being used is displayed
in reverse video.
- 174 -
gas pipes are
2
5 . 0 % A B
５ .
５.０
density in the
2
Display of gas supply