NuAire LabGard NU-543-300E, Operation And Maintenance Manual

Page: 23 / 72

OM0284 Page 23 of 72
Rev 2 July/2021
6.1.2 Front Panel
The control system front panel contains the following functions described in detail (see Drawing BCD-16377).
6.1.2.1 Blower Key
The blower key controls the ON/OFF power to the blower. LED above key indicates: Full green for blower on,
Blinking green for blower pending, Blinking full red for blower alarm
6.1.2.2 Hidden Key
The hidden key is located just above the blower LED indicator centered in the airflow symbol. The hidden key
is used for various functions including the blower password 3 key sequence if the option is activated.
6.1.2.3 Fluorescent Light Key
The fluorescent light key controls the on/off power to the fluorescent light.
LED above the key indicates full blue for fluorescent light on, blinking blue during auto timer duration.
6.1.2.4 Ultraviolet (UV) Light Key
The UV light key controls the on/off power to the UV light (if optionally installed).
LED above indicates full yellow for UV light on, blinking yellow during auto timer duration.
6.1.2.5 Outlet Keys
The outlet key controls the ON/OFF power to the outlets.
LED above indicates full blue for outlets on, blinking blue during auto timer duration.
6.1.2.6 Red Alarm LED
The red alarm LED will indicate any alarm condition and remain indicating until the alarm condition is cleared.
A blinking red alarm LED indicates a power interruption has occurred.
6.1.2.7 Audible Alarm Silence Key
The audible alarm silence key allows user interaction to silence a window high audible alarm for cleaning /
loading purposes. The alarm silence may last up to 15 minutes, if the alarm condition still exists, the audible
alarm will again sound.
The audible alarm silence key also is used to exit all FlowGard™ user interaction menus.
6.1.2.8 Arrow Adjustment Keys
The arrow adjustment keys allow user interaction for various functions.
6.1.2.9 ENT Key
The ENT key is used to select item on display or accept and enter current item, function or value.
6.1.2.10 Audible Alarm
The audible alarm is provided per EN 457, tested at one frequency to a loudness of 13 db over the cabinet’s
normal running db level. The audible alarm will activate on all alarm conditions as long as they are present.
The audible alarm will activate for 30 seconds full on, then ring back 2 seconds every 5 seconds thereafter
until the alarm condition is cleared.
6.1.3 Control System Power
After the LabGard® ES NU-543E is plugged into the appropriate facility line power the control system will power up
and display a power on reset message, the last revision of software (for several seconds) and time. 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 along with the display message of power on reset.
Airflow idle XX:XX
GAF3 Version XX:XX
Power on Reset