Service manual

PN 4237242C
2.3-1
INSTRUMENT DESCRIPTION
FLUIDICS PANEL
2
2.3 FLUIDICS PANEL
Overview
The Fluidics Panel is responsible for receiving, preparing and presenting the sample for
electronic analysis, and preparing for introduction of the next sample.
Whole-blood sample is aspirated through a sample aspirate probe, then transported to the
counting chambers. This is accomplished by the Probe/Wipe Traverse Assembly. A
self-washing mechanism is built into this assembly, relieving the operator of having to wipe
the probe.
Precision dilutions are accomplished using two syringes that make up the Syringe Assembly.
Fluidic operations requiring less precision, such as rinsing and draining, are accomplished
using peristaltic pumps. The peristaltic pumps make up the Peristaltic Pump Assembly. The
baths and the fluidic solenoids, controlling most of the fluidic activity are mounted on the
Diluter Panel. Several individual components that complete the diluter are mounted directly
to the Fluidics Panel.
The Diluter Panel, Probe/Wipe Traverse Assembly, Peristaltic Pump Assembly, Syringe
Assembly and several individual components are mounted to the Fluidics Panel
(Figure 2.3-1).
Figure 2.3-1 Fluidics Panel Components
7242005A
SYRINGE
ASSEMBLY
DILUENT
RESERVOIR
CYCLE
COUNTER
AIR/MIX
SELECT
VALVE
LV9
BATH MIX
SELECT
VALVE
LV12
LYSE
PUMP
PM5
VACUUM
REGULATOR
PROBE/WIPE
TRAVERSE
ASSEMBLY
PERISTALTIC
PUMP
ASSEMBLY
DILUTER
PANEL
C