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biosystems A25 User Manual
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Service manual
100
5.1.1.3. Removing the main cover
a
)
Open the analyzer cover
.
b
)
Remove the two bottom screws that hold the cover to each hinge.
c)
Close the analyzer cover
.
d
)
Block the hinges in this position pushing a metal pin of around 3 mm diameter through their side holes. For this, use
2 screwdrivers or appropriate diameter Allen keys.
e
)
Hold the cover so that it does not fall and remove the 2 upper screws that hold the cover to each hinge.
99
101
Table of Contents
Default Chapter
5
Table of Contents
5
1 Introduction
9
General Description of the Analyzer
9
Operating Arm
10
Dispensing System
10
Reactions Rotor and Reading
11
Electronic System
12
Application Program
12
Functioning of the Analyzer
13
Transport and Reshipment of the Analyzer
13
2 Mechanical Components
15
Instrument Breakdown
15
Description of the Mechanical Components
15
Operating Arm
15
Guide
16
Carriage
17
Y Carriage
18
Z Carriage
20
Dispensing System
21
Thermostated Needle
21
Dispensing Pump
22
Tubes and Containers
24
Container Level Control Scales
25
Racks Tray with Integrated Washing Station
26
Washing Pumps
27
Reactions Rotor with Integrated Optical System
27
Thermostated Rotor and Photometric System
28
Lighting System
31
Back Covers
33
Connectors Cover
33
Switch Cover
33
Electronics Cover
34
Main Cover Hinges
35
Base
35
Housings
36
3 Electronic System and Fluids
38
CPU Board (CIIM00006)
38
Power Supply Board (CIIM00007)
44
Needle Board (CIIM00008)
46
Photometry Board (CIIM00009)
47
Racks Board (CIIM00010)
48
LED Board (CIIM00011)
48
Communications Board (CIIM00019)
49
Interconnection between Boards
49
Boards Interconnection
54
Schematic Liquid Circuit
62
4 Service Program
63
Initialising the Analyser
63
Adjustments
65
Adjustment of the Needle Thermostatation System
65
Adjustment of the Rotor Thermostation System
66
Adjustment of the Positioning of the Operating Arm
67
Adjusting the Maximum Sweep of the Z Axis
67
Adjustment of the Positioning of the Rotor
69
Centering of the Rotor with Regard to the Dispensing Point
69
Centering of the Rotor with Regard to the Optical System
69
Adjustment of the Positioning of the Filter Wheel
70
Adjustment of the Level Control Scales
71
Adjustment of the Level Detection Sensitivity
71
Tests
72
Motor Tests
72
Initialization Test
73
Movement Test
73
Loss Step Test
74
Stress Mode Test
74
Z Axis Security Systems Test
75
Maximum Z Verification Test
75
Diaphragm Pumps and Electrovalves Test
76
Functioning Test
77
Stress Mode Test
77
Needle Self-Centering System Test
77
Needle Level Detection System Test
77
Needle Thermostatation System Test
78
Needle Rotor Thermostatation System Test
79
Photometry Tests
80
Base Line and Integration Times
80
Darkness Counts
82
Repeatability Without Moving the Filter Wheel
82
Stability
83
Repeatability Moving Filter Wheel
83
Absorbance Measurement
84
Reactions Rotor Check
84
Level Control Scales Test
85
Racks and Covers Detection Test
85
PC-Analyzer Communications Channel Test
86
Global Stress Mode of the Analyzer
86
Utilities
87
Disassembly of the Dispensing Needle
87
Fluid System Supply
88
Cleaning of the Dispensing System
89
Changing the Lamp
89
Configuration of the Filter Wheel
90
Demonstration Mode
90
Read/Load Adjustments and Cycles
91
Register
92
Introducing the Analyzer Serial Number
93
Service Reports
93
Language Change
94
Users
94
Monitor
94
User's Program
95
Configuration of the Level of Access to the Analyser
96
Reagent Consumption
97
5 Maintenance and Cleaning
99
Maintenance Operations
99
Housings and Covers
99
Removing the Arm Housing
99
Removing the Front Housing
99
Removing the Main Cover
100
Removing the Back Housing
101
Removing the Main Cover Hinges
102
Operating Arm
102
Fully Removing the Operating Arm
102
Changing the Cable Carrier Chain with the Electrical Hoses and Dispensing Tube
102
Changing an Electrical Hose or the Dispensing Tube
103
Changing the X Motor
104
Changing the y Motor
104
Changing the Z Motor
105
Changing the X Motor Belt
106
Changing the y Motor Belt
107
Changing the Z Motor Belt
107
Changing the Encoder-Spring Unit
108
Changing the Belt Return Pulleys
108
Changing the X Start Photodetector
109
Changing the y Start Photodetector
109
Changing the Z Encoder Photodetector
110
Dispensing System
110
Removing the Thermostated Needle Set
110
Changing the Needle Fan
110
Changing the Needle Peltier Cell
110
Changing the Needle Temperature Sensor
111
Changing the Ceramic Pump
112
Changing the Dispensing Pump Seal
112
Changing the Dispensing Pump Motor
113
Changing the Dispensing Electrovalve
113
Changing the Container Tube Unit
114
Changing the Distilled Water Container Filters
114
Removing the Racks Tray
115
Changing the Washing Electrovalve
115
Changing the Washing Pumps
116
Changing the Load Cell of the Level Control Scales
116
Reactions Rotor and Reading
117
Changing the Rotor Temperature Probe
117
Fully Removing the Rotor
117
Changing the Rotor Peltier Cells
118
Changing the Rotor Cover Detector
119
Changing the Rotor Start Photodetector
119
Changing the Rotor Motor
120
Changing the Rotor Belt
120
Changing the Lamp
121
Changing an Optical Filter
121
Configuration of the Filter Wheel
122
Changing the Filter Wheel Start Photodetector
123
Changing the Filter Wheel Motor
123
Changing the Lenses
123
Changing the Optical Fan
124
Electronic Systems
124
Changing the Microprocessor Board
125
Changing the Power Supply Board
125
Changing the Needle Conditioning Board
125
Changing the Racks Detection Board
126
Changing the Photometric System Board
127
Changing the Front Indicator Board
128
Change the Communications Board
128
8.Changing the Firmware Program
128
Recommended Preventive Maintenance
128
Care and Cleaning
129
General Care of the Analyzer
129
Cleaning the Optical System
129
Cleaning the Dispensing System
130
General Cleaning of the Interior of the Apparatus
130
A I. Technical Specifications
131
A II. Adjustment Margins Tables
135
A III. List of Consumables, Accessories and Spares
136
A IV. List of Required Tools
141
A V. Software Versions
142
5
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biosystems A25 Specifications
General
Brand
biosystems
Model
A25
Category
Measuring Instruments
Language
English
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