Waters ACQUITY CM-30S, Обзор и руководство по обслуживанию, Страница: 44 / 146

2 Preparing and operating the CM-30S
44 October 7, 2014, 715004178 Rev. B
To assemble new fittings:
1. Insert the end of a tube into the hexagonal end of the compression screw.
2. Insert the tube into the larger end of the ferrule.
3. Insert the tube into the fitting body.
4. Rotate the compression screw, clockwise, into the fitting body until the
screw is finger-tight.
5. Using a permanent marker, mark the compression screw at the 12
o’clock position.
6. Mark the fitting body at the 9 o’clock position.
7. Ensure the tubing makes contact with the bottom of the fitting body,
and use the 1/4-inch open-end wrench to rotate the compression screw
clockwise 3/4-turn until the two marks line up.
Installing dual-threaded, finger-tight fittings
Dual-threaded, finger-tight fittings seal against leaks at system pressures as
high as 124,106 kPa (1241 bar, 18,000 psi). You can tighten the fittings
without using tools.
To install dual-threaded, finger-tight fittings:
1. Loosen the cap nut from the dual-threaded, finger-tight fitting.
Dual-threaded, finger-tight fitting with cap nut:
2. Ensure that the tubing protrudes beyond the PEEK
®
ferrule.
Dual-threaded,
finger-tight fitting
Ferrule
Cap nut
Tubing