Abacus
4
Service Manual
1
TABLE OF CONTENTS
Contents
1.
INTRODUCTION ........................................................................................................................................ 3
1.1.
N
AME AND SERIAL NUMBER
................................................................................................................... 3
1.2.
I
NTENDED USE
........................................................................................................................................ 3
1.3.
I
NTEGRATED SOFTWARE
......................................................................................................................... 3
2.
FUNCTIONAL DESCRIPTION ................................................................................................................ 4
2.1.
M
AIN ELECTRONIC PARTS OF THE ANALYZERS
....................................................................................... 4
2.1.1.
Counting chamber with electrodes and measuring aperture ........................................................ 5
2.1.2.
HGB Head .................................................................................................................................... 5
2.1.3.
Cell counter Amplifier Board ........................................................................................................ 6
2.1.4.
Control and Measurement Board (COMB) with Dimm-PC core .................................................. 7
2.1.5.
Dimm-PC* Module ....................................................................................................................... 8
2.1.6.
Configuration and ID E
2
PROM board (IDEPROM) .................................................................... 8
2.1.7.
Pneumatic and Power Board (PPB) ............................................................................................. 9
2.1.8.
Optical boards for stepper motors ................................................................................................ 9
2.1.9.
Valve boards ................................................................................................................................10
2.1.10.
Pressure Sensor ...........................................................................................................................11
2.1.11.
Digital Reagent Sensor Board .....................................................................................................11
2.1.12.
Graphic LCD Display and Keyboard Controller with integrated High VoltageModule .............12
2.1.13.
Keypad .........................................................................................................................................13
2.1.14.
External Power Supply ................................................................................................................14
2.2.
M
AIN MECHANIC AND FLUIDIC PARTS OF THE
A
NALYZER
.....................................................................15
2.2.1.
Sample rotor ................................................................................................................................16
2.2.2.
Sampling needle ...........................................................................................................................16
2.2.3.
Wash head ....................................................................................................................................16
2.2.4.
H&V moving unit .........................................................................................................................17
2.2.5.
Main Dilutor ................................................................................................................................18
2.2.6.
Micro Dilutor ...............................................................................................................................19
2.2.7.
Puffer reservoir ............................................................................................................................19
2.2.8.
Pump ............................................................................................................................................19
2.3.
A
SSEMBLED
A
NALYZER
........................................................................................................................20
2.3.1.
Abacus 4
.......................................................................................................................................20
3.
OPERATION OF THE FLUIDIC SYSTEM ............................................................................................24
3.1.
F
LOW DIAGRAM OF MEASUREMENT
.......................................................................................................25
3.2.
I
NITIALIZATION OF THE
F
LUIDIC
S
YSTEM
..............................................................................................28
3.3.
S
AMPLING PROCESS
...............................................................................................................................28
3.4.
L
YSE
EO
D
ILUTING PROCESS
.................................................................................................................30
3.5.
D
ILUTING
P
ROCESS
...............................................................................................................................31
3.6.
L
YSING PROCESS
...................................................................................................................................32
3.7.
C
OUNTING PROCESS
..............................................................................................................................33
3.8.
C
HAMBER DRAINING PROCESS
...............................................................................................................34
3.9.
C
LEANING PROCESS
...............................................................................................................................35
3.10.
S
HUTDOWN PROCESS
.............................................................................................................................35
4.
ADJUSTMENT ...........................................................................................................................................36
4.1.
M
ECHANICAL SETTINGS
........................................................................................................................36
4.1.1.
Opto wheel setting .......................................................................................................................36
4.1.2.
Sampling needle setting ...............................................................................................................37
4.2.
H
ARDWARE SETTINGS
...........................................................................................................................37
4.2.1.
Amplifier offset setting .................................................................................................................37
5.
CHECKING THE PROPER OPERATION .............................................................................................38
5.1.
S
ELF TEST OF
A
BACUS
4 ........................................................................................................................38
5.1.1.
Self test Screens ...........................................................................................................................38
5.1.2.
Normal range of Self Test parameters Abacus 4 .........................
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