Fume cupboard standard BS EN 14175-2:2003 recommends:-
- An air flow indicator shall be incorporated to show unambiguously the correct functioning of the fume cupboard’s air flow
- Means should be provided to easily check or self-check the correct functioning of the air flow indicator
- Audible and visual alarms shall warn the operator of incorrect operation of the fume cupboard. The audible alarm may be silenced once alarmed
LABAIR is a product that meets the requirements of fume cupboard standard EN 14175, electro-magnetic standard EN 61326, and RoHS Directive CE12
Fascia Panel
Panel in white, dark grey or silver plastic - 210 x 90 x 10 deep - IP55 embedded ‘O’ ring sealed
Mounting vertical or horizontal options
Logo sticker - crystal domed stating either AXAIR or custom printed design
Control sticker with either black or white background
LEDs in green and red indicate whether sash face air speed is High, Normal, or Low
LEDs in orange indicate Sash High, Calibration Mode, Fan Run, and Light On
Buttons for Fan Run, Cupboard Light and Audible Alarm Mute
Button test procedure to confirm that all alarm features are operational
Printed Circuit Board
Electronics operate at 12Vdc via a 230Vac/12Vdc power supply; battery back-up is optional
Settings for alarm delay, system purge, and re-calibration
Connection points for power supply, air speed sensor, fan relay, cupboard light, sash high
Protection in an IP55 surface box, or IP55 sealed to a service panel cut-out.
Model
LABAIR-A for basic air speed monitoring and alarm feature
LABAIR-C for additional control of air speed at the sash face utilising PID output to an inverter fan drive or damper electronics
LABAIR-AD & CD to digitally display the air speed at the sash face
LABAIR-J as a smaller and very basic alarm for light duty e.g. school fume cupboards
Operation
LABAIR models are factory calibrated to provide an alarm signal when the sash face air speed falls below 0,5m/s. They can be re-calibrated in-situ for other air speeds if required.
