Data Sheet for Product

Page 2 of 4
Siemens Building Technologies, Inc.
Features
Through-the-wall face velocity monitoring for
constant volume fume hoods
Digital display of face velocity in FPM or m/s
APOGEE FLN communications which transmit
FHM status information or receive commands
from the workstation PC
Occupied/unoccupied operating modes via local
switch and networked command
Fume Hood Status LED’s for normal and alarm
conditions
User defined alarm limits
Emergency pushbutton
User definable auxiliary pushbuttons (network
connection)
Local alarm horn with silence switch tamper proof
setup functions
Digital output for remote alarms
User definable digital input (e.g., sash height alert)
Automatic return from power failure
Set-up parameters defined and modified using the
Portable Operators Terminal (Laptop)
Description
The Fume Hood Monitor consists of the following:
An integral thermistor sensor which monitors face
velocity
A Liquid Crystal Display (LCD) which displays face
velocity and operating messages for certain
conditions (e.g., low face velocity, high face
velocity, general failure, user alarm, OFF)
2 LED status lights: green indicating normal
operation, red indicating alarm condition or OFF
Audible alarm buzzer
Wiring terminators for input, FLN communications,
digital input and digital output points
All required tubing and mounting hardware plus
installation, startup and calibration instructions
Laptop connection for calibration
2 auxiliary buttons (host use)