Bio-Rad ChromLab™ Software - Manual (Page 66)

2 | The NGC Instrument
64 | NGC Chromatography Systems and ChromLab Software
Mixer LEDs
The mixer module is fitted with LEDs.
 A left green LED indicates the flow is from system pump A.
 A right green LED indicates the flow is from system pump B.
 Both LEDs light when both pumps are running.
 Blinking green LEDs indicate the line to plumb using the Point-to-Plumb
feature.
Detectors
All NGC systems include a detector module that contains a conductivity monitor
and either a single-wavelength UV detector or a multi-wavelength UV/Vis detector.
The single-wavelength UV detector and conductivity module can be replaced with a
multi-wavelength UV/Vis detector and conductivity module and vice versa. Some
configurations include a pH detector module. The pH detector module can be
added as an upgrade to systems that do not offer it as a standard module.
UV Detectors and Conductivity Monitor
The UV detectors measure the UV absorbance of biomolecules as they elute
through the column. The conductivity monitor measures the ionic strength (salt
concentration) of buffers.