Next Advance PC77-MAG - Manual (Page 5)

3
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.
Operator’s Manual for the Pressure Injection Cell
The sample tube protrudes from the base for easy
insertion and removal.
REPLACING THE TOP
Confirm that the black O-ring is seated in
its groove. Slip the top onto the base, rotate
the top 60 degrees clockwise, and then
tighten the three bolts using a hex wrench.
Use a hex wrench to tighten the three bolts.
INSERTING A CAPILLARY
Loosen the nut covering the white ferrule
using a wrench. Slide the capillary through
the small hole in the ferrule, until it reaches
the bottom of the sample tube. Tighten the
nut, thereby squeezing the ferrule tightly
around the capillary.
To remove the capillary, loosen the nut and
slide the capillary out.
INJECTING A SAMPLE
First point the knob on the 3-way valve
towards the stainless steel tubing connected
to the gas tank. Then, while looking away
from the gas tank gages and with your hand
covering them (in case they explode when the
pressure is turned on) open the gas tank
valve. Adjust the pressure regulator to the
SETTING UP YOUR PRESSURE
INJECTION CELL
Setting up the Pressure Injection Cell
consists of attaching it to 1/8 inch (outside
diameter) thick walled stainless steel tubing
(not supplied with the PC77 Pressure
Injection Cell). First, slide the tubing through
the inlet nut until it hits a stop. Finger tighten
the nut and then tighten it with a wrench for
1-1/4 turns. Connect the other end of the
tubing to a pressurized gas tank. It is now set
up.
USING YOUR PRESSURE
INJECTION CELL
OVERVIEW
Using the pressure injection cell requires
removing the top, inserting your sample,
replacing the top, and then inserting a
capillary. Next, inject the sample using
pressurized gas to force the sample through
the capillary. After the injection, close the gas
tank valve and open the 3-way valve to
release the pressure.
REMOVING THE TOP
With the valves at the pressure source
turned off and the 3-way valve opened to
release any pressure inside the cell, loosen the
three bolts securing the top, 2 turns each.
Rotate the top counterclockwise by 60
degrees so that the hexagonal sides are even.
Then lift off the top.
INSERTING THE SAMPLE
Place the sample tube in the main hole of
the base. The tube should not be capped. If
the cap is hinged, you must cut off the hinge
(with scissors). There is a recess in the top so
the tube can protrude from the base, but a
hinged cap will not fit in the recess.