Agilent 1260 Infinity Quaternary LC VL Manual and Quick Reference
35
Introduction
1
Detector
Grating Assembly
The grating separates the light beam into all its component wavelengths and
reflects the light onto mirror #2.
The stepper motor reference position is determined by a plate fitted onto the
motor shaft, interrupting the beam of a photo sensor. The wavelength
calibration of the grating is done at the zero order light position and at
656 nm, which is the emission line of the deuterium lamp.
Beam Splitter Assembly
The beam splitter splits the light beam. One part goes directly to the sample
diode. The other part of the light beam goes to the reference diode.
Photo Diodes Assemblies
Two photo diode assemblies are installed in the optical unit. The sample diode
assembly is located on the left side of the optical unit. The reference diode
assembly is located in the front of the optical unit.
Photo Diode ADC (analog-to-digital converter)
The photo diode current is directly converted to digital data direct photo
current digitalization. The data is transferred to the detector main board . The
photo diode ADC boards are located close to the photo diodes.
Summary of Contents for 1260 Infinity Quaternary LC VL
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