Data Sheet for Product

2
Siemens
Datasheet
A6V10959858_en
Smart Infrasructure
2020-07-30
Features
● Digital display of face velocity in meters per second (mps) or feet per minute (Fpm)
● Digital display of exhaust airflow in cubic meters per hour (m
3
/h), cubic feet per minute (cfm)
and liters per second (l/s)
● Green, yellow and red LED status lights
● Alarm horn with dedicated silence alarm button
● Emergency max push button
Use
The KNX Operating Display Panel (QMX3.P87) is the interface between the fume hood operator
and the control system. It includes a custom designed package for visual and audible indication
of fume hood operating conditions and push-buttons for emergency mode operation, alarm
silence and user defined auxiliary buttons. The panel is mounted on the wall or fume hood in an
easily accessible location. Up to two Operating Display Panels are supported per Fume Hood
Controller.
Functions
Visual Indicators
Meaning
Action
Fume hood is operating efficiently None
Action required Press Key 5 to return to energy efficient
operation, check display for instrucitons
Green LED - Solid Normal operation, no alarms or warnings
present
None
Green LED – Flashing Pending change to Low air volume flow mode
Fume hood is operating in Low airflow mode,
no alarms or warning present
Follow lab safety procedures
Yellow LED - Solid High airflow warning
Low airflow warning
Sash open above maximum operating position
Stabilizing jet fan failure
Follow lab safety procedures for high airflow
warning indication
Follow lab safety procedures for low airflow
warning indication
Close sash to a safe operating position
Follow lab safety procedures for stabilizing jet
fan failure