Service manual

PN 4237242C

2.3-5

INSTRUMENT DESCRIPTION

FLUIDICS PANEL

Figure 2.3-3 Probe-Wipe Traverse Assembly

Peristaltic Pump Assembly

The Peristaltic Pump Assembly is located on the lower left side of the instrument and consists

of a plate holding four peristaltic pumps and their associated tubing. See Figure 2.3-4.

Table 2.3-2 gives each pump’s location and function. The green and blue filters are also found

on this assembly. The green filter, a 0.45-µ fluid barrier, is found in the air lines. It blocks

fluid that might get into the line, from going any further. The blue filter, a 10-µ filter, is in the

fluid lines. The blue filter blocks particulate and air bubbles.

Figure 2.3-4 Peristaltic Pump Assembly

PROBE

MOTOR

TRAVERSE

HOUSING

SAMPLE

ASPIRATE

PROBE

PROBE/

OPTO SENSOR

CARD

TRAVERSE

MOTOR

SPRING BELT

TENSIONER

7242006A

7242007A

PM1

(AIR/MIX)

PM2

(DILUENT)

PM3

(RINSE)

PM4

(WASTE)

GREEN

AIR FILTER

(0.45µ)

BLUE

FLUID FILTER

(10µ)