Data Sheet for Product

3
Siemens Industry, Inc.
A6V10959882_en
Smart Infrastructure
2020-07-30
Visual Indicators
Meaning
Action
Information
Switches between display pages:
● alarm condition
● real (average) value for exhaust volume
● setpoint value for exhaust volume
● real (average) value for face velocity
● setpoint value for face velocity
● real (average) pressure value
None
Manual Mode
Keeps fume hood in occupied state
None
Green Leaf
Green LED
● Fume hood is operating efficiently
Red LED
● Action required
Press Green leaf button to return to energy efficient operation
Fume Hood Light
Turns on the fume hood light
None
Audible
Information
Meaning
Action
Constant buzz High airflow alarm
Low airflow alarm
Emergency purge
Airflow measuring or sash measuring device failure
Fire
Follow lab safety procedures
Long buzz Sash open above maximum operating position Close sash to safe operating position
Short buzz Pending change to Low air volume flow mode Follow lab safety procedures
Five buzz/minute Sash opening alert Close fume hood sash to reduce fume hood exhaust
Technical design
Mechanical design
The unit always communicates as a KNX PL-Link device. Up to two operator display units can
be connected to the same controller.
The operator display unit features an optional battery charging circuit to charge the battery
during normal operation.
The operating and display unit can perform the following functions without a controller:
● Monitoring of the communication to the controller. The green and yellow LEDs go off in the
event of communication failure. The red alarm LED is activated.
● Emergency alarm flashing in the event of power failure (with a separately connected 9V
rechargeable NiMH battery).
Note: Do not replace with a standard 9V battery, leakage or corrosion will occur.