Routine maintenance schedule – Labconco XVS Ventilation Stations 4865060 User Manual
Page 32
Chapter 6: Maintaining your XPert or XVS Enclosure
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Routine Maintenance Schedule
Weekly
• Clean the enclosure interior appropriate for the application.
• Operate the exhaust system, noting the airflow velocity through the
enclosure using a source of visible smoke. Airflow alarms are
recommended for constant monitoring.
Monthly (or more often as required)
• Determine the actual face velocity through the sash opening of the
enclosure where the average reading should be at the specified
velocity. (Use calibrated thermal anemometer or other approved
apparatus). Airflow alarms are recommended for constant
monitoring.
• Using a cloth and glass cleaner, clean the exterior surfaces of the
enclosure, particularly the front of the enclosure, to remove any
accumulated dust.
• The enclosure rear baffle should be checked for any blockage to
ensure that the enclosure is maintaining proper airflow.
• All weekly activities.
Annually
• Replace the fluorescent lamps on accessory light kit.
• Have the enclosure validated by a qualified certification technician.
See Validating the Vented Enclosure in Chapter 3.
• All monthly activities.
Guardian™ 500 Airflow Monitor Kit No. 3944700
or 3944701
The Guardian 500 Airflow Monitor is designed to continuously monitor airflow
through enclosures and fume hoods. This permanently installed device provides both
visual and audible alarms to alert the user of abnormal airflow conditions. A green
light on the front of the monitor indicates normal flow conditions. When flow
conditions lower than the set point are encountered, a flashing red light is activated
along with an audible alarm. To temporarily mute the audible alarm, press and
release the test/reset button. The Guardian 500 Airflow Monitor has a built-in sensor,
3 relay inputs and 1 relay output. The relay inputs can be configured for night
setback, external alarm, and sash high alarm. The night setback features disables the
alarm. The relay output is configured for Low Air Alarm.