Next Advance PC1000-MAG - Manual (Page 5)

5
Operator’s Manual for the Pressure Injection Cell
BE SAFE. ALWAYS MAKE SURE THAT THERE IS NO PRESSURE IN THE CELL BEFORE
LOOSENING THE BOLTS, AND THAT THE BOLTS ARE SECURELY FASTENED BEFORE
APPLYING PRESSURE TO THE CELL. USERS MUST ALWAYS WEAR PROTECTIVE
APPAREL, INCLUDING EYEWEAR AND MUST BE TRAINED IN WORKING WITH HIGH
PRESSURE.
Photograph of a 1 ml tube with a hinged cap
(left) and of a 1 ml tube with the hinge cut off
and the bottom placed in an adapter
composed of soft tubing (right).
The central hole in the base of the
pressure injection cell is sized so that
1.5 or 2 ml sample tubes will protrude
above the surface, making placement
and retrieval easy. A (surprisingly)
simple adapter will enable 1 ml
microcentrifuge tubes to protrude, too.
The adapter is a piece of soft tubing
(1/4 inch inside diameter, 3/8 inch
outside diameter). As with any tube
with a hinged cap, first cut off the hinge
so that the top of the tube will fit in the
recess in the top of the pressure
injection cell. Next, slide the adapter
onto the bottom of the 1 ml sample
tube, as shown in the figure below.
STIRPLATE OPERATION
(PC1000-MAG model only)
Operation of the stirplate is
straightforward. The power supply
should be plugged in to the jack at the
rear. The speed control knob is on the
left. Clockwise rotation increases the
speed. The power switch is on the right.
MAINTENANCE
Periodically, the Teflon ferrule
should be replaced. Simply remove the
nut covering the ferrule, remove the
ferrule, place a new ferrule, tapered side
down into the fitting, and replace the
nut. Your pressure injection cell comes
with 10 ferrules (plus one installed in
the top). Additional ferrules can be
purchased directly from
Chromatography Research
Supplies (part number 214204, 1/8” to
0.4mm PTFE ferrules), at
www.chromres.com
DISCONNECTING AND
RECONNECTING THE UNIT
Before you disconnect the pressure
injection cell, mark lines on the nut and
the valve, close the valves by the
pressure source, and release any
pressure inside the cell by opening the
3-way valve. When you reconnect the
unit, you can use the same ferrule and
tubing. Simply tighten the nut slightly
more than last time. You should feel the
wrench get very hard to turn once you
go beyond the nut’s previous position.