Contents III
6.2
Safety Precautions................................................................................................6-1
6.3
Circuit boards........................................................................................................6-2
6.4
Layout of the Boards.............................................................................................6-4
6.5
Detaching and Assembling Circuit Boards ...........................................................6-4
6.6
Function of the Boards .........................................................................................6-5
6.6.1
Control Framework ..................................................................................6-5
6.6.2
Main Board ..............................................................................................6-5
6.6.3
Drive Board..............................................................................................6-6
6.6.4
Pre-amp Board ........................................................................................6-7
6.6.5
AD Conversion Board..............................................................................6-7
6.6.6
Reagent Refrigeration Board...................................................................6-8
6.6.7
Level Detection Board .............................................................................6-8
6.6.8
Reaction Disk Temperature Sampling Board...........................................6-9
6.6.9
Three Probes Connection Board.............................................................6-9
6.6.10
ISE Power Board ...................................................................................6-9
6.6.11
Heater Voltage Selecting Board.............................................................6-9
6.7
On Board LED Indication......................................................................................6-9
6.8
Power Supply Unit .............................................................................................. 6-11
6.8.1
Features of Power Supply Unit..............................................................6-12
6.8.2
Protective Function of Power Supply Unit .............................................6-13
6.8.3
Block Diagram .......................................................................................6-13
6.9
Connection Diagram...........................................................................................6-14
7
Service and Maintenance................................................................................................7-1
7.1
Preparation ...........................................................................................................7-1
7.1.1
Tools.........................................................................................................7-2
7.1.2
Wash Solution..........................................................................................7-2
7.1.3
Others ......................................................................................................7-2
7.2
Daily Maintenance ................................................................................................7-3
7.2.1
Checking Remaining Deionized Water....................................................7-3
7.2.2
Emptying Waste Tank ..............................................................................7-3
7.2.3
Checking Connection of Deionized Water...............................................7-4
7.2.4
Checking Connection of Waste Water.....................................................7-4
7.2.5
Checking Syringe.....................................................................................7-4
7.2.6
Checking/Cleaning Sample Probe...........................................................7-5
7.2.7
Checking/Cleaning Mixing Bar ................................................................7-6
7.2.8
Checking Printer/Printing Paper ..............................................................7-6
7.2.9
Checking ISE Unit (Optional)...................................................................7-6
7.3
Weekly Maintenance ............................................................................................7-8
7.3.1
Cleaning Sample Probe...........................................................................7-8
7.3.2
Cleaning Mixing Bar.................................................................................7-9
7.3.3
Cleaning Sample/Reagent Compartment..............................................7-10
7.3.4
Cleaning Panel of Analyzing Unit .......................................................... 7-11
7.3.5
Washing Deionized Water Tank............................................................. 7-11
7.3.6
Washing Waste Tank .............................................................................7-12
7.4
Monthly Maintenance..........................................................................................7-13
7.4.1
Cleaning Wash pool of Probe................................................................7-13
7.4.2
Cleaning Wash pool of Mixing Bar.........................................................7-14
7.4.3
Cleaning Sample/Reagent Rotor...........................................................7-15
7.5
Three-month Maintenance .................................................................................7-15
7.5.1
Washing Dust Screen............................................................................7-15
7.5.2
Replacing Filter Assemby......................................................................7-17
7.6
Irregular Maintenance.........................................................................................7-18
7.6.1
Checking photoelectric system performance.........................................7-18
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