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Medical Gas Supply System
No.
Description
6
Right Bank Running
Icon
7
Left Bank Empty
Icon
8
Right Bank Empty
Icon
9
MENU Zone
3.4.2
The controller screen alarm condition will
change as shown in figure 17.
Figure 17 - Left Bank Low, Right Bank Running.
Alarm Output Conditions
Alarm Description
Normal
Change Cylinders
Change Cylinders Immediately
Low line pressure
High line pressure
3.4.3
Press [Left Arrow] to check the low bank lock
out safety feature. The running bank will not change to
the empty side while the bank is showing low cylinder
pressure. At this situation the left select icon background
is gray. It can't be pushed to change over.
icon
Condition
On
Off
On
Off
On
Off
Home Page
Alarm Page
Setting page
Service page
Condition
Off
On
Off
Off
Off
Figure 18 - Change Bank Lock Out, Low Cylinders.
3.4.4
Open 1 cylinder on the left hand bank to re-
pressurise. All conditions should return to normal as
per figure 19.
Figure 19 - Normal, Right Bank Running.
Alarm Output Conditions
Alarm Description
Normal
Change Cylinders
Change Cylinders Immediately
Pressure Fault
High line pressure
3.4.5
With the right bank now set as duty (Press
[Right Arrow] to select if necessary). Ensure all right
hand cylinders are closed, then slowly drain the pressure
from the test point (shown in figure 1, item 17) until the
cylinder contents pressure is below the bank changeover
point (typically 10 bar for 4 bar, 20 bar for 8 & 11 bar
supply). Stop draining the pressure once the running
bank has changed to the left hand side.
3.4.6
The controller screen and output alarm
conditions will change as shown in figure 20.
19
Condition
On
Off
Off
Off
Off
4109992485.00
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