Bayer HealthCare Rapidlab 800 - Manual (Page 39)

1Ć17 Learning About the System
Figure 1Ć9.ā 860 Measurement Module Components
Lactate Sensor
pH Sensor
Reference Sensor
Spring-Loaded Latch
Measurement
Module Tubing
Preheater
pO
2
Sensor
pCO
2
Sensor
Sample Ground/
Temperature Sensor
Glucose Sensor
K+ Sensor
Ca++ Sensor
Cl – Sensor
Na+ Sensor
Release Tab
Contact Assembly
Measurement
Block
COĆox Module Measurement Components
The CO-ox module is connected to the base model, which supplies power to the
module. The 844, 854, and 864 systems analyze samples for tHb and FO
2
Hb; the
845, 855, and 865 systems anlayze samples for tHb, FO
2
Hb, FHHb, FMetHb, and
FCOHb. The measurement components spectrophotometrically measure tHb and
its derivatives. Most of the measurement components are enclosed in the CO-ox
module. The sample chamber is visible when the CO-ox cover is raised.
Optics Module and Lamp
The lamp provides the light to illuminate the sample. The optics module includes
lenses and filters, fiber optic coupler, and polychromator. The lenses and filters
focus the light from the lamp to the fiber optic coupler. The fiber optic coupler
transports the light to the sample chamber. The polychromator, which consists of
coupling lenses, entrance slit, mirrors, and diode array, disperses the light that
passes through the sample chamber into a spectrum and measures the light
intensity at several wavelengths.