Tab Dialog Box:
(Right/Left/Top/Bottom) Pump / Head Type & Limits

This page indicates the installed pump head and allows you to set limits for the Flow Rate and the system pressure. The available options depend on the installed pump.

For the Dionex pumps, Chromeleon displays the installed pump heads automatically. For the Gilson 321 and 322 pumps, select the installed head pump from the drop-down list. The pump head determines the maximum allowed flow rate and pressure.

 

Pump Head Type

Description

 

 

Semi-Preparative
(P680 and HPG-3200P only)

The pump has semipreparative pump heads.

 

 

Analytical
(P680, ISO-3100A, LPG-3400A, DGP-3600A, and HPG-3x00)

The pump has analytical pump heads.

 

 

Micro
(P680, LPG-3x00, DGP-3600M, and HPG-3x00M)

The pump has micro pump heads.

 

 

Analytical Bio
(P680 only)

The pump has biocompatible analytical pump heads.

 

 

Micro Bio
(P680, LPG-3400MB and DGP-3600MB)

The pump has biocompatible micro pump heads.

 

 

32X-H1 (Gilson 321
and 322 only)

The pump is fitted with analytical pump heads
(flow rate: 0.15 to 15 mL/min, up to 600 bar).

 

 

32X-H2 (Gilson 321
and 322 only)

The pump has semipreparative pump heads
(flow rate: 0.30 to 30 mL/min, up to 600 bar).

 

 

 

High Pressure Gradient (P680 and HPG-3x00 only)

This check box is visible only with high-pressure gradient pumps (read-only).

 

Flow

Enter the minimum and maximum flow rates:

 

Option

Description

Range [mL/min]:

Indicates the allowed flow rate range. The supported range depends on the pump type and pump heads.

 

 

Minimum [mL/min]:

Enter a new value to change the lower limit for the flow rate range.

 

 

Maximum [mL/min]:

Enter a new value to change the upper limit for the flow rate range.

 

 

Double flow
(HPG pumps only)

Select this option for pump flow rates outside the normal range. Double flow uses both pump heads together for delivery; thus, the maximum flow rate doubles to 20 ml/min for analytical pumps (HPG-3200A/M/P, HPG-3400A/M) or to 100 mL/min for semipreparative pumps (HPG-3200BX), if the two solvents are mixed in a ratio of 1:1. If the ratio is not 1:1, the maximum flow will be less than double the normal maximum. (For example, a mixing ratio of 2:1 for the analytical pump model results in a maximum flow of 10 + 10/2 = 15 ml/min.)

Using this option increases the pressure ripple, resulting in increased baseline noise.

 

Pressure

Enter the minimum and maximum pressure limits:

 

Option

Description

 

 

Range:

Indicates the allowed pressure range.

 

 

Unit:

Select the pressure unit (MPa, bar, or psi).

 Tip:  

For LPG-3x00 pumps, the selected unit is automatically sent to the pump upon each connect.

 

 

Minimum:

Enter a new value to change the lower pressure limit.

 

 

Maximum:

Enter a new value to change the upper pressure limit.

 

For more installation details, refer to:

 UltiMate 3000 Pumps

 P680 HPLC Pump

 Gilson 321 and 322 Pumps