Shel lab SCO10A, Руководство по установке и эксплуатации

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38 | P a g e
OPERATION
M
UTING THE
A
UDIBLE
CO
2
A
LARM
Audible and visual deviation alarms activate if the incubation chamber CO
2
concentration deviates by 1% above or below the CO
2
setpoint. The low deviation
audible alarm has a delay of 15 minutes to prevent the low alarm from sounding
each time the doors are opened, causing a short-lived drop in CO
2
concentration.
To mute a CO
2
deviation alarm:
Press and hold either the Up or Down arrow button on the
CO
2
Control until the amber Mute LED illuminates and the
audible alarm shuts off.
•
The audible alarm will remain muted for the duration
of the current CO
2
deviation.
•
The visual alarm indicator will remain illuminated.
•
Any new deviation of ±1% or greater will reactivate
the audible alarm.
Low and No Gas Alarms Timeline
N
O
G
AS
S
UPPLY
A
LARM
(NGS)
A second alarm activates if the Low Gas deviation indicator light is illuminated for longer
than 20 minutes.
•
The letters “ngS” will appear in the CO
2
display indicating No Gas Supply .
•
The alarm will remain active, even if the incubator is turned off and back on.
•
The NGS alarm remains on until CO
2
is restored to the chamber. It may take 2 or more
minutes of CO
2
injections to establish a concentration high enough to deactivate the alarm.
Low Gas Alarm Muted
No Gas Supply