Dionex UltiMate 3000 Series, Operating Instructions Manual

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UltiMate 3000 Series:
SD, RS, and BM Pumps
Operating Instructions Page 47
4.2 General Precautions for Connecting Capillaries
When you connect capillaries to the pump, observe the following general precautions:

When you connect capillaries, make sure that the connectors are free from contaminants.
Even minute particles may cause damage to the system

Different fitting systems are used in an UltiMate 3000 system. Therefore, install the
capillaries and fittings only at the positions for which they are intended.

Use only the capillaries shipped with the pump and original spare capillaries from
Dionex.

Dionex recommends using Viper capillary connections whenever possible. When using
Viper capillaries, observe the information in the instructions shipped with the capillary.

Depending on the fitting connection, also observe the following:

Viper fitting connections
Loosen and tighten the knurled screws of the viper capillaries only with your hand
(do not use tools). First, tighten the screw hand-tight. If the connection leaks, tighten
the screw a little more. If leakage still exists, replace the Viper capillary.
Capillaries with Viper fitting connections can be reused also for a different
connection.

Conventional fitting connections (non-Viper)
Do not overtighten these fitting connections. (The torque should not exceed 3 Nm for
steel capillaries or 1.6 Nm for titanium capillaries.) If you observe leakage on the
connection, tighten a little further.
If leakage still exists, first consider cleaning the connection port with a cleaning swab
(part no. 6040.0006). Replace the capillary and/or fitting if this does not eliminate the
problem.
Reuse used fittings and ferrules only for the same capillary connection. This is to
avoid increased dead volume or damage to the system and leakage.