Dionex/LC Packings UltiMate Capillary/Nano HPLC UV DetectorsDionex Detectors
Dionex/LC Packings UltiMate Capillary/Nano HPLC UV Detectors
In addition to the standard commands available for all detectors (see 
Dionex Detectors), the UltiMate detector provides the following control commands (please note that the display Filter level determines which commands and properties are displayed):
|
Command/Property |
Description |
|
Adjust_Calibration |
Performs wavelength calibration by using an internal test.
The command stops the data acquisition. |
|
Enter the rate at which Chromeleon collects digital data from the detector. |
|
|
DemoFileName |
Name of the file that is read in the Demo Mode. |
|
LampType |
Indicates the lamp type: Deuterium or Tungsten (read-only). |
|
TimeConstant |
Time constant. This is the time the detector requires for rising from 0% to 63% in response to a signal step. The constant is used for noise suppression (values: 0.0 s to 4.55 s; depending on the detector type only a predefined scale of values may be available). The time constant is directly associated with the Rise_Time. The following formula applies: 2.2 x TimeConstant = Rise Time.
Most noise is suppressed if the time constant is 4.55 s. However, for the acquisition of narrow peaks a lower response will be more appropriate. |
Tip:
If you perform the Data Collection Rate command, the default Step value is set to the reciprocal value. That is why you have to perform the Step command after the Data Collection Rate command if you need a different step.
The UV_Diagnostic section provides information about the detector operation and service. The entries are read-only:
|
Command/Property |
Description |
|
LampAge |
Reports the total operating hours of the lamp. |
|
LampIgnitions |
Reports the number of lamp starts. |
|
LampNumber |
Indicates the lamp number. (The value is incremented when a new lamp is installed.) |
|
LampOnTime |
Reports how many hours the lamp has been burning since it was turned on. |
|
LastServiceDate |
Reports when the detector was last serviced. (The Dionex Service Engineer enters the date.) |
|
LastServiceCode |
Reports the service code, providing information about the service. (The Dionex Service Engineer sets the code.) |
|
ManufacturingDate |
Reports the detector manufacturing date. |
|
MotorWorkTime |
Reports the total operating hours of the motor. |
For information about how to install the UltiMate UV detector, refer to Hardware Installation 
UltiMate Capillary/Nano HPLC System: Installation.