Handling Alarms - Thermo Scientific 1500 A2 Series Operating Manual

Section 4
Operation
Alarms (continued)

Handling Alarms

4-16 Model 1500 Series A2
Figure 4-24. Main Screen after two Cycles of Alarm Ticker Message
The "Health status" icon has changed to show the audible alarm is
snoozed. To the right of the "Health status" icon is a countdown timer
showing the snooze time remaining, that is, the time period after which
the audible alarm is resumed.
When the issue causing the alarm has been resolved, for example, when
the user moves the front window to the appropriate position, the audible
and visual alarms automatically disappear, and the screen display returns to
the healthy state.
Events that produce alarms include:
Information Displayed on Screen
ER01:Inflow low
ER02:Inflow high
ER03:Downflow low
ER04:Downflow high
ER05:Inflow pressure error
ER06:Downflow pressure error
ER07:NVRAM error
ER09:Window switch error
ER10:Communication error
ER11:Frequency error
ER12:Window not at correct position
To handle the problem, proceed as follows:
• Inspect the small blue alarm counter in the red "Health Status Alarm"
icon to find out how many alarms you have to handle.
Alarm Type
Inflow alarm low
Inflow alarm high
Downflow alarm low
Downflow alarm high
Inflow pressure error:
Downflow pressure error
NVRAM Error
Faulty window position switch
Communication error
FAN frequency error
Window not at the correct position
Thermo Scientific