Labconco Paramoun Ductless Enclosures 69636 Series, 6' Widths - Manual (Page 18)

Chapter 3: Getting Started
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Initial Safety-First ™ Vapor Sensor Warm Up Period
The Safety-First
™
Vapor Sensor includes a 5V, 0.28W integrated heater and
any detectable gas that accumulates during shipment must be driven off the
organic sensor over an initial 10-30 minute warm up period with the blower
activated. Refer to the Diagnostic Program Screen for Organic Sensor on
page 32 in Chapter 5 to view the display of the millivolt levels of the Vapor
Sensor. With new filters installed, the Organic Sensor should read between
1300-1500 millivolts after the initial 10-30 minute warm up period with the
blower running. All filters should be changed upon completion of work once
the Organic Sensor sees an increase of 400-500 millivolts with the display
indicating “Replace Filters.”
Reset or Change the Airflow Face Velocity
(If Necessary)
The face velocity for the Paramount Ductless Enclosure has been preset at the
factory between 75-80 fpm. Important Note: Transport, altitude, and
temperature differences may require a reset of the “Calibration” of the
“Pressure Sensor” as outlined in Chapter 5: Using the Ductless Enclosure.
When “Calibration” of the “Pressure Sensor” is reset, it is best to try the
previously calibrated values of motor speed and airflow face velocity and
then confirm the average face velocity through the enclosure sash opening.
Adjust the motor speed and airflow face velocity as necessary after
confirmation. Average face velocity measurements are made using a
calibrated thermal anemometer and taking an average across the sash opening
at 5" directly below the sash handle.
Additionally, the same “Calibration” menu in Chapter 5 should be used to
change the face velocity to another value. For most applications, 75-80 fpm
is ideal. However, there are some requirements for 100 fpm. Furthermore,
the face velocity alarm has been preset at the factory at 60 fpm. If needed,
follow the “Calibration” menu for the “Airflow Alarm” in Chapter 5 and
adjust the alarm value between 10-20 fpm below the actual face velocity.
The Paramount Ductless Enclosure has been set up to accept the Smart-
Flow™ feedback system. The Smart-Flow feature adjusts the motor speed
automatically for filter pressure drop, barometric pressure, and room
temperature, and maintains constant airflow velocity at the calibrated value.
Note: At altitudes above or below 900 feet, the Paramount must be
recalibrated to account for significant pressure changes that will have an
effect on face velocity. Face velocity measurements are always made using a
calibrated thermal anemometer and taking an average across the sash
opening. Follow the “Calibration” menu for “Pressure Sensor” as outlined in
Chapter 5: Using the Ductless Enclosure for recalibration of face velocity.