Optical Balance - Agilent Technologies Infinity 1260 User Manual

Optical Balance

Optical Balance
When the sample and reference cells both contain the same liquids an equal
amount of light should fall on each light receiving diode, the diode balance will
equal 0. If this balance of light needs to be corrected the optical balance
procedure can be used.
Diode balance is calculated as follows:
Where:
• diode
• diode
Optical balance adjustment is a manual procedure where the position of the
light beam falling on the light receiving diode is adjusted using the zero glass
adjustment screw.
The detector will become not-ready when the diode balance value falls outside the range -
N O T E
0.5 to + 0.5.
Both sample and reference cell must be purged with the same solvent before optical
N O T E
balance is performed. Prior to performing this procedure, the system must be well
equilibrated.
Agilent 1260 Infinity RID User Manual
= signal proportional to the amount of light falling on diode
1
= signal proportional to the amount of light falling on diode
2
8
Test Functions
Optical Balance
1
2
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