Plumbing Connections - Gilson VERITY 1741 User Manual

Plumbing Connections

This section describes how to make inlet and outlet tubing connections and uses tubing and
fittings supplied with the flow cell. The 1/8" flow cells are supplied with FEP tubing oD 1/8" and
the 1/16" flow cells are supplied with PEEK tubing oD 1/16".
Inlet/Outlet Tubing Preparation
cut the supplied tubing into two pieces. one is used for the column outlet to detector flow cell
inlet and the other is used for the detector flow cell outlet.
Inlet Tubing Connection
1. Put the fitting(s) supplied with the flow cell on one end of one piece of the cut tubing. Use
only nuts and ferrules made of PEEK or KEL-F.
● For 1/16" flow cells, put a PEEK one-piece nut on one end of the tubing.
● For 1/8" flow cells, put a KEL-F ferrule 1/8" and a PEEK nut 1/8" on one end of the tubing.
The ferrule tip should point to the nut.
2. connect the tubing to the lower flow cell
inlet. The column outlet must be connected
to the lower flow cell inlet to allow liquid
to flow upward. If connected otherwise, it
may result in problematic degassing of the
cell. Finger tighten the fitting.
If placing the detector in direct sunlight,
penetration of stray light to the flow
NOTE
cell may occur. In such case, protect the
ends of the inlet tubing with dark plastic
tubing.
3. connect the other end of the tubing to the
column outlet (fitting not supplied).
Figure 9
One-piece Nut for
1/16" Flow Cells
Figure 10
Nut and Ferrule for
1/8" Flow Cells
VERITY® 1741 UV-VIS DETEcToR | USER'S GUIDE 13