OM0280
Page 22 of 63
Rev 3 July/2021
6.1.3
Aeromax™
Control System Power
After the LabGard® ES NU-540E is plugged into the appropriate facility line power the control system will power
up.
The control panel will also indicate the power up status by blinking the red alarm LED. Pressing any key will
acknowledge the power up status and turn off the blinking red alarm LED.
If a power interruption occurs, all control system functions, calibrations and parameters will be maintained and
continue upon restoration of power. Just as the initial power up, the red alarm LED will blink to indicate power up
status.
6.1.4
Standby Mode
When the BSC is not in use any of the function keys except the blower that initiates run mode may be turned on
and off in standby mode.
6.1.5
Run Mode
Any time the blower run key is pressed with the sliding window at its correct operational height, the RUN MODE
screen will be initiated. The Run Mode will start with the
PresurFlow™
entering and approximate 3 minute warm
up period. The
PresurFlow™
LED indicators will blink and indicate the following sequence:
•
1
st
minute
–
Left and right Red LED’s will blink
•
2
nd
minute
–
Left and right Green LED’s will blink
•
3
rd
minute
–
Center 3 Green LED’s will blink
Once the warm up period is complete, only one LED will indicate cabinet airflow status.
During the warm up period the aseptic cleaning process may begin. If the sliding window is raised, an audible and
visual alarm will occur, but may be silenced by pressing the alarm silence key.
6.1.6
Nite Care Mode
The NU-540E may be configured to allow the DC ECM motor to continue to run at a lower rate with the sliding
window closed allowing the workzone interior to be continually HEPA filtered. If the Nite Care mode is configured,
the blower must be on (green LED above blower key will blink) and the window closed for it to be activated. Once
activated, blower LED indicator will blink fast and the
PresurFlow™
will indicate 3 Green LED indicators will blink.
In addition, the fluorescent light will be disabled. The UV light may be turned on if installed.
6.1.7
Standby/Run Mode Alarms
If present, standby/run mode alarms will be both visual and audible, the red alarm LED oval will turn on. Audible
alarms will produce an alarm tone for 30 seconds, then ring back for 2 seconds of every 5 seconds. Pressing the
alarm silence key will silence the audible alarm for 15 minutes initially then will start the ring back function again
.
The list below represents alarm types and their respective priority from the highest to lowest priority.
1)
New Firmware Loaded
2)
Internal Board Failure
3)
Power on Reset
4)
Airflow Pressure Alarm
5)
Blower RPM Failure
6)
Window High
7)
Window Low
8)
Replace UV Light
Note:
The above messages are described in greater detail in section 8.
Summary of Contents for LabGard NU-540-300E
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