Dionex Pumps
Dionex DP/SP Pumps

In addition to the standard pump commands (see  Dionex Pumps), the DP/SP pumps support the following commands and properties (please note that the display Filter level determines which commands and properties are displayed):

 

Command/Property

Description

CamRevolutionsLeft
CamRevolutionsRight

Indicates the number of revolutions of the camshaft of the left or right pump block.

Degasser

Turns the integrated vacuum degassing module on or off. The degassing module normally remains on at all times.

HeadType

Indicates the head type of the pump: Analytical or Semi-Prep (read-only).

Leak

Indicates the status of the main leak sensor: OK or Leak (read-only).

MaximumFlowRamp

Upper limit for the flow rate acceleration:
(0.1 to 10,000.00 ml/minē).

ModelVariant

Indicates the variant: Isocratic or Gradient (read-only).

Motor

Indicates whether the pump is delivering: On or Off (read-only).

RearSealLeakCounter

Indicates the number of drops that passed the piston seal in the past hour.

RearSealLeakLimit

Specifies the leak detection threshold for the rear seal wash system. If the limit is reached, a message is displayed in the Audit Trail.

RearSealWashPump

Indicates whether the peristaltic pump of the rear seal wash system is running (Active) or not running (Idle) (read-only).

RearSealWashSystem

Turns the rear seal wash system on (Interval or Automatic) or Off.

Interval activates rear-seal washing for 5 minutes every hour. During this time, the drop sensor on the liquid reservoir is not active, i.e., the pistons seals are not monitored for tightness. Automatic periodically activates rear-seal washing once per hour until the drop sensor has counted 50 drops. During this time, the drop sensor is active, i.e., the piston seals are monitored for tightness.

Off turns off the rear-seal wash system.

WorkLoadLeft

Indicates the workload of the left pump block in MJ (read-only).

WorkLoadRight

Indicates the workload of the right pump block in MJ (read-only).

ER Controller Commands (RFIC-ER systems only)

The controller commands are described in  Dionex ER Controller.

Equilibration Commands and Properties

 

 Tip:

Use the equilibration commands and properties only for the SmartStartup feature.

 

Equilibration

Reports the equilibration status (OK or Not OK).

Ripple.UpperLimit

Sets the upper limit for the ripple of the pressure signal in [%]. The upper limit can be any value between 1.0% and 5.0%. The default setting is 3.0%.

Ripple.Value

Reports the actual value. The value is calculated as soon as at least a one-minute segment was measured. It is updated with each new recorded segment and averaged over the last 5 minutes.

If the average pressure is below 10 bar, the ripple measurement is started again.

The value of the property does not change after the measurement and is displayed under Preconditions.

RippleStatus

Reports the ripple equilibration status of the pump pressure (read-only).

N/A

Equilibration has not started.

Measuring

Equilibration is running, but the amount of data is not yet sufficient to report a result.

Good

Equilibration is running or has finished. The values are within the specified limits.

NotReady

Equilibration is running. The current data is outside the specified limits.

Failed

Equilibration is completed. The result is outside the specified limits.

NotTested

The limit was set to 0, thus disabling ripple checking.

StartEquilibration

Starts equilibration. For more information, refer to How to ...:  Equilibrating the Chromatography System.