Waters 1500-Series, Operator'S Manual

Page: 62 / 188

3-12 Installing Options and Accessories
Installing dual GM150 gradient mixers
To install the dual GM150 gradient mixers in the 1515 pump:
1. Acquire two mixers (part number WAT055847).
2. Remove the mounting screws and the mixer clamps from their positions
on the upper left-hand corner of the chassis face.
3. Put the mixers inside the mounting clamps, as shown in configuration 2
of the figure “1525 pump showing different mixer configurations (labeled
1, 2, and 3)” on page 3-10 , using hole pairs 2 and 4.
Tip:
To position the two new mixers inside the mounting clamps, orient
the mixers horizontally, top to bottom, so that their inlets and outlets
face forward.
4. Firmly tighten the mounting screws.
5. Cut an appropriate length of 0.009-inch diameter tubing (part number
WAT026973 in the startup kit) and attach one end to the pressure
transducer outlet and the other end to the bottom mixer inlet using a
compression screw and ferrule on each end.
6. Cut one 9.25-cm minimum length of 0.009-inch diameter tubing (part
number WAT026973 in the startup kit), bend it to form a U-tube, and
place a compression screw and ferrule on each end.
7. Connect the outlet of the bottom mixer to the inlet of the top mixer with
the U-tube.
8. Cut another length of 0.009-inch diameter tubing. Connect one end to
the top mixer outlet and the other end to the reference valve inlet using
a compression screw and ferrule on each end.
To install the dual GM150 gradient mixers in the 1525 pump:
1. Acquire one additional mixer (part number WAT055847).
2. Loosen the compression screws on the inlet and outlet tubing of the
mixer.
3. Move the tubing enough to allow repositioning of the mounting clamps.
4. Loosen the compression screw on the outlet tubing.
5. Remove the mounting screws, the mixer, and mounting clamps.