Biotage PRESSURE+ 48, Руководство пользователя

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5
System Description
Flow Control
The P 48 unit has a two-tier gas delivery system. The
flow control switch (B) enables setting and operation of gas
flow in addition to turning gas flow on and off:
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Adjustable Flow Rate (0 to 15 psi, 0 to 1180 mL/min)
Recommended for sample loading and elution. By turning
the flow control switch (B) to the left to the Adjustable Flow
position, gas is channeled through the Adjustable Flow
regulator (C) and then through a rotometer (A) controlled by
the needle valve positioned at its base. This path through
the rotometer provides very precise and slow flow through
the columns by limiting gas flow from 0 to 1180 mL/min.
IMPORTANT:
As indicated on the label, never turn the
rotometer completely off. Seating the needle valve into its
orifice can damage the unit.
Figure 3. The rotometer (A), flow control switch (B), Adjustable Flow regulator (C), and Maximum Flow regulator (D).
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Maximum Flow Rate (0 to 100 psi)
Recommended for column washing, drying, etc. By
turning the flow control switch (B) to the right to the
Maximum Flow position, gas is introduced at the pressure
set on the Maximum Flow regulator (D). The pressure
range for this regulator is 0 to 100 psi and should be
used when processing very viscous or dirty samples.
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Turn Off the Gas
By turning the flow control switch (B) to the OFF
position, no gas will flow through the manifold.
IMPORTANT: The unit should always be in the OFF position
during compression and decompression cycles and when
not in use. Always shut off the external gas supply when the
unit is not in use.