Dionex Detectors

In addition to the General Device Commands, Chromeleon supports the following standard commands for representing the recorded data. The commands are available for most detectors (even if they supply analog signals, for example, via the UCI Universal Chromatography Interface). However, note that some detectors automatically calculate the Average, Step and MaxAutoStep parameters, so that users do not have to make these settings.

Standard Commands

Command	Description
AcqOn/Off	Start/stop data acquisition.
Autozero	Automatic autozero.
Average	Average all measured values over the Step interval.
Delta	Indicates the signal's slope, that is, the difference between the current value and the value one second ago; this is useful for Triggers.
Lamp/UV_Lamp/Vis_Lamp	Turns the UV or Vis lamp on or off.
MaxAutoStep	Sets the maximum step if Step = Auto.
Step	Step width adjustment
Wavelength	Sets the wavelength.

For information about special commands and properties available for individual detectors, refer to:

UltiMate 3000 Series/ICS-Series Variable Wavelength Detectors

UltiMate 3000 Series DAD and MWD Detectors

UltiMate 3000 Series VWD, DAD, and MWD: pH and Conductivity Monitor

UltiMate 3000 Series Fluorescence Detectors

UltiMate 3000 Series Electrochemical Detector

ESA Coulochem Electrochemical Detector

ESA Corona (plus/ultra/ultra RS) CAD Detector

PDA/PDA-100/PDA-3000 Detectors

UVD 170/340 UV/PDA Detectors

AD20/AD25 Absorbance Detectors

UVD-3000 UV Detector

LC Packings UltiMate Capillary/Nano HPLC UV Detector

RF2000 Fluorescence Detector

CD20/CD25/CD25A, ED40/ED50/ED50A, and IC20/IC25/IC25A Electrochemical Detectors

CD Conductivity Detector

ED Electrochemical Detector

Please note: The Shodex RI-101 Refractive Index Detector is available from Dionex; refer to Commands and Tips for Third-Party Devices Shodex RI-101 Refractive Index Detector.