Thermo Scientific Vanquish DAD: Commands

Thermo Scientific Detectors
Thermo Scientific Vanquish Diode Array Detector

The commands listed below are available for the Vanquish DAD detector. Please note that the display Filter level and detector type determine which commands and properties are displayed.

3DFIELD channel

Command/Property	Description
AcqOn/Off	Use this command to start/stop data acquisition.
BunchWidth	Use this property to specify the range that is averaged when collecting 3D data (similar to the Bandwidth of a UV channel). A higher BunchWidth reduces the required data storage and improves the signal-noise-ratio, but reduces the Optical Resolution. Note: Only integer values are accepted. If you enter a decimal value, Chromeleon automatically rounds to an integer value.
MaxWavelength	Use this property to set the maximum wavelength for recording spectra. Narrows the range in which the 3D field is recorded (also see MinWavelength).
MinWavelength	Use this property to set the minimum wavelength for recording spectra. Narrows the range in which the 3D field is recorded (also see MaxWavelength).
RefBandwidth	Use this property to average several photodiode signals of the reference signal. It is not necessary to select a reference bandwidth unless a reference wavelength is set.
RefWavelength	Use this property to correct the 3D field absorption values. The selected reference wavelength should be in an area of the spectrum where little absorption occurs.
Retention	Indicates the retention time of the signal.

UV channel

Command/Property	Description
AcqOn/Off	Use this command to start/stop data acquisition.
Bandwidth	Use this property to specify the optical bandwidth at which a chromatogram is recorded.
Delta	Indicates the signal slope, that is, the difference between the current value and the value one second ago.
RefBandwidth	Use this property to average several photodiode signals of the reference signal. It is not necessary to select a reference bandwidth unless you enter a RefWavelength.
RefWavelength	Use this property to correct the absorption values of the wavelength that has been selected for the analysis. The selected reference wavelength should be in a quiet area of the spectrum where little absorption occurs.
Retention	Indicates the signal's retention time .
Signal	Indicates the current signal value [mAU] .
Wavelength	Use this property to set the wavelength for recording the signal on the UV channel to the wavelength with the absorbance maxima for the analytes of interest.

Equilibration commands and properties

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

Command/Property	Description
Drift	Provides information about the detector Drift, determined by equilibration.
*.UpperLimit	Use this property to set the upper drift limit [mAU/h]. Set to 0 to turn drift equilibration off.
*.Value	Indicates the current drift value in mAU/h. 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.
DriftEquilibration	Indicates the status/result of the drift measurement.
DriftStatus	Indicates the status/result of the drift measurement.
	N/A	Equilibration has not started.
	Measuring	Equilibration is running, but the amount of data is not yet sufficient to report a result.
	NotReady	Equilibration is running or has finished. The values are within the specified limits.
	Good	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, drift measurement is disabled.
Equilibration	Provides information about the total status of the equilibration: OK or NotOK.
Noise	Provides information about the detector Noise.
*.UpperLimit	Use this property to set the upper noise limit in [mAU]. Set to 0 to turn noise equilibration off.
*.Value	Indicates the current noise. 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.
NoiseEquilibration	Indicates the status/result of the noise measurement: OK or NotOK.
NoiseStatus	Indicates the status/result of the noise measurement. For the available values, see DriftStatus.
StartEquilibration	Use this command start equilibration (noise/drift measurement).

General detector properties (read-only)

Command/Property	Description
Alarm	Indicates whether the detector reports an alarm. The detector will not clear an alarm automatically, manual intervention is required. Call MuteAlarm to mute the audible alarm.
AmbientTemp	Indicates the temperature [°C] outside the optical system.
ChannelIntensity1	Indicates an intensity value.
ChannelIntensity2	Indicates an intensity value.
ChannelIntensity3	Indicates an intensity value.
ChannelIntensity4	Indicates an intensity value.
ChannelIntensity5	Indicates an intensity value.
ChannelIntensity6	Indicates an intensity value.
ChannelIntensity7	Indicates an intensity value.
ChannelIntensity8	Indicates an intensity value.
ChannelIntensity9	Indicates an intensity value.
ChannelIntensity10	Indicates an intensity value.
DriverId	Indicates the unique driver identifier.
DriverManufacturer	Indicates the manufacturer of the driver.
DriverVersion	Indicates the version of the driver.
ExceptionLogClear	Use this command to clear the error log of the device. Note: An error log is created if the firmware has crashed during an operation. The firmware sends all error log entries to the driver at connect time to be reported in the daily audit trail. You get a warning message about the error and are asked to send the affected audit trail to hardware service for inspection if this happens more often, and to use this command to clear the internal logs.
FirmwareVersion	Indicates the firmware version of the module.
FlowCellOperationTime	Indicates the time that the flow cell has been operated.
IlluminatedVolume_Flowcell	Indicates the illuminated volume of the flow cell.
LamphouseTemp	Indicates the lamp house temperature [°C].
LastUVLampChangeDate	Indicates when the UV lamp was replaced last.
Leak	Indicates whether the leak sensor has reported a leak.
LeftDoor	Indicates whether the compartment door is Open or Closed.
MaxPressure_Flowcell	Indicates the pressure limit of the flow cell.
ModelNo	Indicates the model number.
NotReadyCauses	Indicates why the module is not yet ready for the next analysis.
OperatingHours	Indicates the operating hours since the detector was operated for the first time.
OpticalPath_Flowcell	Indicates the optical path length of the flow cell.
PowerOnTime	Indicates the time since the detector was powered-up last.
PreviousUVLampOperation Time	Indicates the operating hours of the previously installed UV lamp.
ProductNumber_Flowcell	Indicates the product number of the flow cell.
Qualification.LastDate	Indicates the date when detector qualification was performed last.
Qualification.LastOperator	Indicates the name of the person who performed the detector qualification.
Ready	Indicates that the module is ready for the next injection.
RightDoor	Indicates whether the compartment door is Open or Closed.
SerialNo	Indicates the serial number of the device.
SerialNo_Flowcell	Indicates the serial number of the flow cell.
SlitChangeCount	Indicates the number of times the slit has been changed.
SpectrographTemp	Indicates the temperature of the spectrograph.
Type_Flowcell	Indicates the flow cell type.
UvLamp_ProductNumber	Indicates the product number of the UV lamp.
UvLamp_SerialNo	Indicates the serial number of the UV lamp.
UVLampIgnitions	Counts the total number of successful UV lamp ignitions.
UVLampIntensity	Indicates the UV lamp intensity at 254 nm in counts per second.
UVLampOnTime	Counts the operating hours of the UV lamp since the lamp was ignited last.
UVLampOperationTime.Value	Indicates the total operating hours of the UV lamp.
WavelengthPeak1Measured	Indicates the measured peak of the first wavelength.
WavelengthPeak1Theoretical	Indicates the theoretical peak of the first wavelength.
WavelengthPeak2Measured	Indicates the measured peak of the second wavelength.
WavelengthPeak2Theoretical	Indicates the theoretical peak of the second wavelength.
WavelengthPeak3Measured	Indicates the measured peak of the third wavelength.
WavelengthPeak3Theoretical	Indicates the theoretical peak of the third wavelength.
WavelengthPeak4Measured	Indicates the measured peak of the fourth wavelength.
WavelengthPeak4Theoretical	Indicates the theoretical peak of the fourth wavelength.
WavelengthPeak5Measured	Indicates the measured peak of the fifth wavelength.
WavelengthPeak5Theoretical	Indicates the theoretical peak of the fifth wavelength.
WavelengthPeak6Measured	Indicates the measured peak of the sixth wavelength.
WavelengthPeak6Theoretical	Indicates the theoretical peak of the sixth wavelength.
WavelengthPeak7Measured	Indicates the measured peak of the seventh wavelength.
WavelengthPeak7Theoretical	Indicates the theoretical peak of the seventh wavelength.

General detector commands

Command	Description
AutoactivateUV_Lamp	Use this property to set the UV lamp. When set to On, the UV lamp is turned on automatically whenever the detector is powered up.
Autozero	Use this command to perform automatic null balancing (= the current detector signal is interpreted as 0).
BuzzerVolume	Use this property to specify the volume of the buzzer.
CalibrationReset	Use this command to reset all calibration settings to factory defaults.
Connect	Use this property to connect the device to the data system, enabling computer control.
Connected	Indicates whether the device is connected to the data system that is under computer control.
Data_Collection_Rate	Enter the rate [Hz] at which Chromeleon collects digital data from the detector.
DemoFileName	Use this property to enter the file name of the demo file (may contain %d, which will be replaced by the sample number).
Disconnect	Use this command to disconnect the device from the data system and enables manual control from the keypad of the device.
LampCover	Indicates whether the lamp cover is attached or not.
LeakSensorMode	Use this property to activate or deactivate leak detection. Enabled (default and recommended): Activates leak detection. A beep alerts you when the leak sensor reports a leak. Disabled: Deactivates leak detection. The leak sensor status is written to the Audit Trail, but no message appears and no beep sounds.
MuteAlarm	Use this property to mutes the audible alarm. The command has no effect if the alarm state is Off.
PeakWidth	Use this property to set the narrowest peak width at half height.
QualificationDone	Use this command when a qualification was done to update the associated information.
Parameter: At	desired wavelength
Parameter: doubleValue	double rounded as int (optional)
Parameter: index	Index (optional)
Parameter: intValue	intValue (optional)
Parameter: String	String
Parameter: strValue	strValue (optional)
Parameter: token	token (optional)
Parameter: Which	Defines which Thermo Scientific sensor has been added.
Reset	Use this command to reset the device to its initial condition, as attained after power-up.
ResponseTime	Use this property to specify the Response Time for the signal. The response time is the time required for the detector signal to rise from 10% to 90% in response to a signal increase. A longer response time reduces the noise. However, if the selected response time is too long, this can result in reduced peak heights and asymmetrical peak shapes. The value calculated by Chromeleon is only a recommended value. You are free to select a different value as appropriate for your application. Tip: The response time multiplied by the data collection rate must not be smaller than 2 or greater than 20.
ServiceDone	Use this command when a service was done to update the associated information.
SetFactoryDefaults	Use this property to restore the Thermo Scientific standard settings.
Shutter	Use this property to specify whether the shutter blocks the light path.
SlitWidth	Use this property to specify the slit width. A wide slit allows more light to fall on the array. A smaller slit results in a higher optical resolution.
UV_Lamp	Use this property to indicate the state of the UV lamp. To turn on the deuterium lamp, set UV_Lamp to On.

UV calibration and validation commands

Command

Description

WavelengthCalibration

Use this command to perform wavelength calibration via the deuterium lamp.

Note:

To ensure that this command is executed correctly, a Wait UV.Ready command is required after this command in the PGM File.

WavelengthValidation

Use this command to perform an internal wavelength validation procedure using the holmium filter.

Note:

To ensure that this command is executed correctly, a Wait UV.Ready command is required after this command in the PGM File.

System Wellness and Predictive Performance commands and properties

Command/Property	Description
LastUVLampChangeDate	Indicates when the UV lamp was replaced last .
Qualification	Provides information about system qualification.
*.Interval	Use this property to specify the interval (in days) when the next system qualification is due.
*.WarningPeriod	Use this property to specify the period during which a warning appears before the next qualification is due.
*.GracePeriod	Use this property to specify the period during which the detector may be operated after the due date for re-qualification.
QualificationDone	Use this command after qualification to update the related system data.
Service	Provides detector service information.
*.LastDate	Indicates the date of the last service .
*.Interval	Use this property to specify the interval (in days) after which a service is due.
*.WarningPeriod	Use this property to specify the period during which a warning appears before the next service is due.
ServiceDone	Use this command after the device has been serviced, select this command to update the related system information.
SlitChangeCount	Indicates the number of times that the slit width has been changed.
UVLampOperationTime	Provides information on the UV lamp's operating time.
*.Limit	Use this property to set the limit for the operating time of the UV lamp. An error message appears when the specified value is reached.
*.Value	Indicates the total operating time of the UV lamp in [h].
*.Warning	Use this property to specify a time limit for issuing a warning with regard to the operation time. A warning appears when the specified value is reached.

Analog output commands and properties

The following commands and properties are available only if the DAC plug-in module is installed and the DAC Board check box is selected in the Properties dialog for the detector (Detector tab page) in the Server Configuration program.

Property	Description
Analog1_Offset Analog2_Offset	Use this property to adjust the zero position of the analog output when it is plotted. The value entered is a percentage of the full-scale analog output. The offset allows the evaluation device to plot the signal if it becomes negative. Note: The output voltage of the analog outputs cannot reach a minimum of exactly 0 V. Therefore, we recommend to set an offset of at least 5 %, even if only positive analog output signals are expected. This will enable you to also measure very small output signals down to 0 precisely.
Analog1_Range Analog2_Range	Use this property to set the voltage range of the analog output signal. The range to use depends on the evaluation device to which the output is connected.
Analog1_Resolution Analog2_Resolution	Use this property to set the resolution of the analog output signal. The resolution to use depends on the value expected for the application.

Further Information

For an overview of the commands for all devices supported by Thermo Fisher Scientific, refer to Thermo Scientific: Commands and Tips.

For installation details, refer to Hardware Installation: Thermo Scientific Devices:

Vanquish - Diode Array Detector.