ATT ENERGY SAVING SYSTEM SAF(V)ER

The ATT - Advanced Technology Transfer Pty Ltd SAF(V)ER Air Flow Safety and Energy Saving Electronic By-Pass Damper System is fitted to the ATT EXCEL Series fume cupboards to achieve face and discharge velocities to comply with Australian / New Zealand Standard AS/NZS2243.8:2005. The system always maintains a minimum discharge velocity of 10 m/sec as described in Paragraph 3.2.7.5:

(Discharge Velocity. The fume discharge should be at a minimum velocity of 10 m/s to minimise downwash on the leeward side of the stack for wind velocities below 5 m/s.)

With the constant outlet velocity the fumes will be diluted at all times will the same volume of air. As the sash position is lowered, air is introduced from outside, either roof, plant room or above the ceiling of the laboratory reduce the amount of conditioned air removed from the laboratory. The installation in the roof space helps to reduce heat built up during summer by sucking hot air out of the ceiling cavity resulting in a further reduction in the air conditioner load. The electronic by-pass damper system ensures that the concentration level of fumes will not change while moving the sash as required by State Authorities.

The Comparison between the ATT By-pass Damper System and the Variable Speed Fan System proves the advantage of the ATT development.

Ask for a copy of our newest CD " SAFETY and Energy Saving Fume Cupboard Systems". In a Video Clip the differences are clearly demonstrated.

This airflow control system does not create electronic noise nor is it sensitive to it. Electronic noise can influence readouts of sophisticated laboratory equipment, can disturb radio communication and can cause computer breakdowns.

The Airflow Safety and Energy Saving Electronic By-Pass Damper System can provide as option an analog voltage output from 1 to 10 volts and different frequencies depending on the momentary sash position. The airflow safety system can as an option communicate with the ATT SAF(V)ER /1 System, which can transmit the received sash position data to the central computer system for further control options as air conditioning control or other maintenance tasks.