Class II Biological Safety Cabinets
2.1.4.4. Filter Life Display
Using this option, the user can select whether the filter life is displayed or not.
Filter life is calculated based on the filter hour meter (F/H/M). The filter life display will count down according
to the amount of hours left in the filter hour meter with respect to filter life expectancy of 10,000 hours. When
the filter is changed, the F/H/M must be reset (please see section 2.1.4.8 to reset the F/H/M). Please note that
the life of the filter is dependent on multiple factors which include environmental air cleanliness. A dirty /
dusty environment will load the filter fast.
2.1.4.5. Set Language
Using this option, the user can select the language of messages displayed on the LCD.
2.1.4.6. Reset B/H/M
This option is used to reset the blower hour meter. The blower hour meter indicates how long the blower has
been in operation. There is no maximum value in blower hour meter. The counter value can be checked in the
diagnostic mode. The value can also provide some help in setting up maintenance schedule.
2.1.4.7. Reset UV/H/M (If UV is present)
This option is used to reset the UV lamp hour meter. The UV lamp hour meter indicates how long the UV lamp
has been in operation. Maximum counter is set at 2,000 hours (100%). The counter value can be checked while
in the diagnostic mode. Please reset the UV lamp hour meter after each UV lamp replacement.
2.1.4.8. Reset F/H/M
This option is used to reset the filter hour meter. The filter hour meter indicates how long the filter has been in
operation. Maximum counter is set at 10,000 hours (100%). The counter value can be checked while in the
diagnostic mode. Please reset the filter hour meter after each filter replacement.
2.1.4.9. Reset Default
User can reset default settings by choosing this option. The features being reset are warm up period (3
minutes), post-purge period (0 minute), UV timer (60 minutes) if present, measurement unit (metric), airflow
monitor (enabled), ADMIN PIN (0009), filter life display (disabled) and FAN PIN (0000).
Note that the calibration settings cannot be reset as it may cause the BSC to operate in an unsafe manner. The
hour meters cannot be reset using this function either.
2.1.4.10. Airflow Out Temp
Using this option, the user can select whether or not to display the airflow when the ambient temperature is
out of the optimum temperature range, below 18
o
C (65
o
F) or above 30
o
C (86
o
F).
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