Labconco FilterMatPortable Exhausters 3970024 - Manual (Page 24)

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Chapter 3: Getting Started
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Connect the Electrical Supply
Source to the FilterMate
115V
Simply connect the 115V power cord supplied to the IEC electrical
supply plug on the back of the unit. If using 50 Hz operation,
blower performance maximum airflow will be reduced by 17%.
Refer to Chapter 2 for setting up the building electrical supply.
Locate the switched auxiliary outlet on the back for plugging in the
airflow monitor. This convenience allows the airflow monitor to
be powered by the FilterMate at all times.
230V
The above procedure applies for the 230V except it is shipped
without a plug. Install the appropriate plug for your electrical
specifications per local codes.
Set the Face Velocity with the
Speed Control Adjustment
Adjustment of the speed control gives the correct face velocity
when the FilterMate is connected to a Protector XVS Ventilation
Station or XPert Balance Enclosure. The face velocity should be
adjusted from 60 to 100 fpm. (Consult your Safety Officer).
Containment of contaminants is maximized at a setting within this
range. Face velocity measurements are made using an
anemometer. An inexpensive anemometer can be obtained from
your laboratory supply dealer. Face velocity measurements should
be taken in accordance with the Industrial Ventilation Manual.
More details are provided in the Protector XVS Ventilation Station
and XPert Balance Enclosure Users Manual. Locate the speed
control adjustment on the back of the FilterMate and temporarily
remove the hole plug. See Figure 3-5. Using a small Phillips
screwdriver, adjust the speed control to give the required face
velocity. The face velocity is increased by turning the speed
control counter clockwise and clockwise to decrease face velocity.
Weighing procedures usually require face velocities between 60-80
fpm. Working at the lowest face velocity appropriate for the
application will give the quietest operation.