Labconco XPert Nano Enclosures 38876 Series - Manual (Page 19)

Chapter 3: Getting Started
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Connecting the Electrical Supply Source to the
Nano Enclosure
Simply connect the 115V power cord supplied to the IEC electrical supply plug on
the back of the enclosure. If using at 50 Hz operations, blower performance
maximum airflow will be reduced by 17%.
The same procedure applies for the 230V except it is shipped without a plug.
Install the appropriate plug for your electrical specifications per local codes. All
models use less than 5 amps.
All wiring for the XPert Nano Enclosure should be performed by a licensed
electrician and conform to local codes.
Do not use any detachable power cord that is not adequately rated
for the unit.
Ne pas utliser un fil électrique amovible qui n’est pas du tension
nominale de l’appareil.
Set the Face Velocity with the Speed Control Adjustment
Adjustment of the speed control gives the correct face velocity and is located behind
the front panel. The face velocity should be adjusted from 60 to 100 fpm. (Consult
your Safety Officer for airflow recommendations for your application). Containment is
maximized at a setting within this range. Working at the lowest face velocity
permissible for the application will give the least turbulent, quietest operation. Face
velocity measurements are made using an anemometer. An electric anemometer can be
obtained from your laboratory supply dealer.
To determine the actual face velocity at the sash opening, airflow velocity readings
are taken. This should be done across the sash opening of the enclosure in
accordance with the Industrial Ventilation Manual. (See Appendix E) The
“average face velocity” is achieved by taking readings in two rows across the
enclosure with the readings 6" from the ends and evenly spaced every 12"; the first
row is 3" down from the upper sash foil and the second row is 3" up from the work
surface. Refer to Chapter 2 for proper airflow volumes for your particular model.
The XPert enclosures have been tested at Labconco’s airflow test facility per
ASHRAE 110-1995. All enclosures achieve an “as manufactured rating” of less than
0.05 part per million (ppm) at 4 liters per minute (lpm); AM <0.05 (Consult
Labconco for individual ratings). For “field use” ASHRAE testing contact Labconco
for a certified on-site contractor. For particulate powder validation, Labconco
performed containment testing to validate the enclosures for sodium naproxen
powders. The XPert enclosures demonstrated excellent containment when used by an
operator using excellent technique and good containment when used by an operator
using marginal technique. While no enclosure can compensate for improper
technique, these tests confirm that the XPert Nano Enclosures provide a safe working
environment.
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