"Preconditions" Category  

Depending on the connected instrumentation, thousands of Preconditions variables exist. They allow you to display the device settings before a sample run in the Audit Trails. (For more information about Audit Trails, refer to Data Management  Audit Trails.) The Preconditions are displayed if you selected Preconditions only or Preconditions and Run on the View or context menu.

The list below contains some of the variables that are typically available during data acquisition with a P680 pump or a UVD 340 detector.

P680

 

Variable

Formula

Description

Average (Pump_Pressure)

precond.Pump_Pressure.
Average

Status of averaging (also, see Average)

Equate (%A)

precond.Pump.%A.Equate

Name of eluent component A (components B, C and D accordingly)

Flow

precond.Pump.Flow

Flow rate

Lower Limit (Pressure)

precond.Pump.Pressure.
LowerLimit

Lower pressure limit (see Pressure.Lower/UpperLimit)

Step (Pump_Pressure)

precond.Pump_Pressure.
Step

Step for each channel (also, see Step)

Upper Limit (Pressure)

precond.Pump.Pressure.
UpperLimit

Upper pressure limit (see Pressure.Lower/UpperLimit)

Value (Pump.%A)

precond.Pump.%A.Value

Percentage of the component in the solvent (partial flow): %B, %C, %D (in the same way for components B, C, and D)

Value (Pump.%A_Level)

precond.Pump.%A_Level

Value for the %A, %B, %C, %D_Levels (in the same way for the components B, C, and D)

Value (PumpWasteLevel)

precond.Pump.WasteLevel

Value for the WasteLevel (in the same way for the components B, C, and D)

 

UVD340

 

Variable

Formula

Description

Average

precond.Average

Status of averaging: enabled or disabled (see Average)

Bandwidth

precond.BandWidth

Bandwidth (for each UV channel)

Bunch Width

precond.3DFIELD.Bunch
Width

Bunch Width of the diode bundle (3D-field only)

LampIntensity

precond.LampIntensity

LampIntensity [counts/s]

MaxAutoStep

AUDIT.MaxAutoStep

Maximum value for Step = Auto (see MaxAutoStep)

Max. Wavelength (3DFIELD)

precond.3DFIELD.Max
Wavelength

Maximum wavelength of the 3D Field

Min. Wavelength (3DFIELD)

precond.3DFIELD.Min
Wavelength

Min. wavelength of the 3D field

Ref Wavelength

precond.RefWavelength

RefWavelength (Reference Wavelength) (for each UV channel)

Ref Bandwidth

precond.RefBandwidth

RefBandwidth (Reference Bandwidth) (for each UV channel)

Step

precond.Step

Step

Wavelength

precond.Wavelength

Wavelength (for each UV channel)

 

For an overview of the different report variable categories, including links to the lists for the respective categories, refer to Report Categories.