Phcbi MCO-50AIC Instrucciones De Operación página 68

GAS AUTO CHANGER (OPTION)
When the CO density level in the chamber remains unchanged even though the CO
2
is open, the unit assumes the currently connected CO
switches the CO gas supply line to the other one. The behavior in that case is shown in Table 2.
2
1. When there is gas remaining in cylinder A, the unit operates using CO
cylinder A (Situation 1).
2. When the CO
2
gas is not supplied into the unit even though the gas valve in the unit is open (Situation 2).
3. When Situation 2 continues for 2 to 3 minutes, the gas supply line is automatically switched assuming
the gas cylinder to be empty. At this time, the CO
gas supply indicator A is displayed in reverse video and blinks (Situation 3).
4. Press the BUZZER STOP key to stop the CO
blinking (Situation 4).
5. Replace the empty gas cylinder A with a new one immediately after the Situation 4 (Situation 5).
6. When the cylinder B becomes empty, the supply line is again switched to the cylinder A.
Table 2. CO gas supply line automatic switching
2
Situation
CO gas is being
2
1
supplied from cylinder A.
CO density in the
2
chamber does not
2
increase even if CO
2
gas valve is open.
CO gas supply line is
2
3
automatically switched
to cylinder B.
The BUZZER STOP
4
key is pressed.
Empty gas cylinder A is
5
replaced with a new
one.
Notes:
When the BUZZER STOP key is not pressed in the Situation 4 and the CO
ꞏ
without the CO gas cylinder A being replaced in the Situation 5, the switch operation between CO
2
supply lines A and B will be repeated. In this case, replace the both CO
ones immediately, and press the BUZZER STOP key.
The switching of CO
ꞏ
switching of CO gas cylinders may also occur in the situations where the gas tube is clogged, the gas is
2
leaking, the gas pressure has dropped down, or the valve on the gas cylinder is insufficiently open etc.,
even though the CO
68
gas cylinder A is empty, the level of CO
CO gas
2
Supply Cylinder
line A
A
Remaining
A
Empty
B
Empty
B
Empty
B
Remaining
cylinders is determined by an increase of CO
2
gas cylinder being used is not empty.
2
gas cylinder to be empty and automatically
2
density in the unit does not increase because
2
gas empty alarm is activated, the buzzer sounds, and
2
gas empty alarm. The gas supply indicator A stops
2
CO gas supply line indicator
2
Cylinder
A
B
Reverse
video and
Remaining
light on
Reverse
video and
Remaining
light on
Blink
Remaining
Light on
Remaining
Light on
Remaining
gas valve in the unit
2
gas supplied from the CO
2
Message
B
display area
Light on
Light on
Reverse
Err01:
video and CO
(and buzzer sound)
light on
Reverse
video and
light on
Reverse
video and
light on
gas cylinder B gets empty
2
gas cylinders A and B with new
2
density in the chamber. The
2
gas
2
-----
-----
Gas Empty
2
-----
-----
gas
2