Thermo Scientific Dionex UltiMate 3000 Series Operating Instructions Manual page 124

UltiMate 3000 Series:
NCS-3500RS and NCP-3200RS
2. On the Control menu, select Diagnostics, and then select Viscosity Measurement; as
an alternative, on the tabset panel, in the NC Pump group, click More Options, and
in the Viscosity Measurement group, click Start. A wizard guides you through the
procedure. The procedure takes about 15 minutes.
Tip: During viscosity measurement, a nanoViper capillary needs to be
connected to the flow meter outlet. A nanoViper capillary with an
appropriate inner diameter (0.25 x 155 mm I.D. x L) is provided in the
accessories kit of the module. Dispose of any liquid that appears at the free
end of the capillary in an appropriate manner or absorb the liquid with a
tissue.
3. Viscosity Measurement includes also diagnostics. Thus, the last wizard page can show
the following results:
♦ Passed
Viscosity measurement has been successful. Click Apply to save the viscosity to the
pump. This value will be used until you save a new value or enter a different value in
Chromeleon (for example, in the Commands dialog box or on the control panel for
the module).
♦ Limited or Failed
The viscosity measurement has been passed only with limitations or failed. Follow
the instructions provided by the wizard and repeat the procedure.
4. Write down the viscosity value if you want to use it later again (see further down) or if
you want to add it to the viscosity list in Chromeleon (→ page 116).
Changing the viscosity value stored in the pump
If you change to a different solvent for which the viscosity has already been established as
described earlier, follow the steps below to overwrite the value stored in the pump:
1. In Chromeleon, open the Commands dialog box for the NC pump (→ page 89).
2. Select %A_Viscosity (or %B_Viscosity) and type the value as a number in the input
box. This value will be used until you establish and save a new value or enter a
different value in Chromeleon.
Adding a viscosity value to the list in Chromeleon
If you change solvents frequently, you can add the viscosity to the viscosity list in
Chromeleon:
1. Open the Properties dialog for the module in the Server Configuration program
(→ page 53).
2. Click the Viscosities tab page.
Page 116 Operating Instructions