Siemens ADVIA 2120, Operator'S Manual, Page: 13 / 477

Welcome to the ADVIA 2120/2120i Hematology System 1-9
•
A low-angle scatter signal corresponding to light scattered at angles between
2
°
and 3
°
A B C D E G I
F H J
A
Laser Diode Driver
Board
B
Laser Diode
C Sample Stream
D
Hi-NA Lens
E Beam Splitter
F
Absorption Detector
G
Asymetrical Dark Stop
H Low Angle Scatter
Detector
I Beam Divider
J
High Angle Scatter
Detector
Hemoglobin Colorimeter Assembly
B
A C
A
Lamp Assembly
B
Hgb Reaction Chamber
C
UFC Assembly
The hemoglobin colorimeter assembly straddles the UFC block (
C
) at the top.
The colorimeter contains a light source (
A
) set at 3.5 Vdc and a 565 nm or 546 nm
interference filter, according to the HGB method selected.
The hemoglobin reaction chamber (
B
) is built into the UFC assembly.
Hemoglobin concentration is calculated using baseline and sample readings taken
at specific intervals during the hemoglobin sample analysis period.