Hitachi 902 User manual

SERVICE MANUAL

FOR

MODEL 902 AUTOMATIC

ANALYZER

- i -

MODEL 902 AUTOMATIC ANALYZER

CONTENTS

1. PRODUCT SPECIFICATIONS................................................................................. 1-1

2. TROUBLESHOOTING ............................................................................................. 2-1

3. FLOW PATH DIAGRAMS ........................................................................................ 3-1

4. BLOCK DIAGRAMS................................................................................................. 4-1

5. ISE ........................................................................................................................... 5-1

6. SWITCH SETTING................................................................................................... 6-1

7. EXPLANATION OF FUNCTION............................................................................... 7-1

8. MOTORS, DETECTORS AND FUSES .................................................................... 8-1

9. ANALYTICAL METHODS......................................................................................... 9-1

10. CIRCUIT DIAGRAMS............................................................................................... 10-1

11. CROSS WIRING REFERENCE ............................................................................... 11-1

12. INSTALLATION........................................................................................................ 12-1

13. MAINTENANCE AND INSPECTION ........................................................................ 13-1

14. ADJUSTMENT SPECIFICATIONS........................................................................... 14-1

15. OEM......................................................................................................................... 15-1

16. SYSTEM INTERFACE.............................................................................................. 16-1

1 - 0

1.PRODUCT SPECIFICATIONS

1.1 Overall System.........................................................................................................1-1

1.2 Sampling System.....................................................................................................1-2

1.3 Reagent System.......................................................................................................1-3

1.4 Reaction System......................................................................................................1-4

1.5 Photometic System..................................................................................................1-5

1.6 ISE (option)..............................................................................................................1-5

1.7 Installation Conditions..............................................................................................1-6

1.8 User Interface...........................................................................................................1-6

1.9 Dionized Water........................................................................................................1-6

1.10 Analytical Methods...................................................................................................1-7

1.11 Accuracy Methods....................................................................................................1-7

1.12 Data Storage............................................................................................................1-7

1.13 System Interface......................................................................................................1-8

1.14Options for Analyzer.................................................................................................1-8

1 - 1

1.PRODUCT SPECIFICATIONS

1.1 Overall System

Configuration :Console type automatic analyzer, with analytical and operation units

integrated

Principle :Discrete type, random access, single-line multi-analysis system;

entire reaction monitoring system

Analytical methods :Colorimetry (absorbance measurement), ion selective electrode

method (ISE; option)

Throughput :Colorimetry ;200 tests/hr (Photometry only max. 300 tests/hr

inclusive of ISE)

No. of analysis items:Colorimetry ;36

ISE ;3 (Na, K, Cl)

Serum indexes ;3

Calculation items;8

Reaction time :10 minutes max.; 3, 4, 5, 10 minutes for concentration calculation

(same as Model 7070/7170)

Measurable samples :Serum (or blood plasma) and urine; one sample kind per channel

Application :Emergency (stat) and routine analyses

Test item selection :Via entry from operation panel, entry from system interface, entry

from no. of items settable (11 kinds)

1 - 2

1.2 Sampling System

Sample container :Hitachi standard sample cup

Sample tube ;diameter 13 to 17 mm

length 75 to 100 mm

Sample disk :60 positions

Outer row;35 positions (routine and stat samples)

(with free adapter, barcode reader attachable)

Inner row;25 positions (standard + control samples (22),

rinse solutions (3))

Detergents :3 kinds

(W1;for sample probe rinsing) HITERGENT

(W2;for sample carryover evasion) ISE RINSE SOLUTION

(W3;for sample carryover evasion) HICARRYNON

Sampling mechanism :Pipetter driven by stepping motor

2 to 50 µL of sample/test (in 0.1 µL steps)

Pipetting mode :Normal ;prescribed volume discharged at cell

bottom

Aqueous sample;system water solution for sample probe

internal rinsing usable as STD-1

Sample pre-dilution not performed

Insufficient sample detection:Resistance detection method

Sample ID :Barcode reader (option)

Following code shemes are usable in combination; CODE 39,

CODE 128, INTERLEAVED 2 OF 5, NW7 (Modulas 10,

Modulas 16)

Automatic rerun :Auto rerun function not provided

Stat sample analysis :Routine sample analysis interruptible for stat sample analysis

Sample carryover :Sample carryover evasion function available; 2 kinds of

detergents settable on sample disk inner row

Sample conveyance :Can be sampled directly from belt-line

1 - 3

1.3 Reagent System

Reagent disk :One disk, 40 positions

(20 positions each on inner and outer rows)

Reagent cooling :Cooling water circulating system (3 to 15°C) (option for China-

destined instrument)

Reagent bottle :50 mL, 20 mL (adapter necessary)

(without barcode, concentrated reagent unusable)

Detergents :HITERGENT (50 mL); position 40 (fixed)

(for addition to reaction bath)

Detergent 1;for reagent probe, stirring rod rinsing, reagent

probe carryover evasion, reaction cell carryover

evasion

Detergent 2;for reagent probe carryover evasion, reaction cell

carryover evasion

(settable on reagent disk inner row)

ISE reagent :Internal standard solution(position 37 (fixed))

Diluent (position 38 (fixed))

Pipetting mechanism :Pipetter driven by stepping motor; 20 to 350 µL/test (in 1 µL

steps)

Reagent addition timing:3 steps (0, 1.5 and 5 minutes); throughput is maintained even

when adding 3 reagents.

Carryover evasion :Rinsing for carryover evasion possible; throughput may decrease

by specifying carryover evasion.

1 -4

1.4 Reaction System

Reaction disk :Turntable type disk (10-minute reaction per rotation)

Reaction cell :Optical path length 6 mm (area 6 ×5 mm)

No. of reaction cells :48

Reaction cell control :One rotation + one pitch feed (18 seconds)

Sample pipetting position:One position (fixed)

Reagent pipetting position:One position (fixed)

Reaction temperature :37 ±0.1°C (warm water circulating system)

Stirring :By means of stirring rod rotation

Timing for stirring; after each addition of R1,R2,R3

Stirring possible for a minimum volume of 100 µL

Stirring position :One position (fixed)

Reacting solution volume:Minimum;250 µL (minimum required volume for photometry)

Maximum;500 µL (temperature control, rinsing upper limit)

Photometric position :One position (fixed)

Cell rinsing :After completion of photometry (rinsing 3 times; rinsing with

detergent not performed)

Carryover evasion :Rinsing for carryover evasion possible; throughput may decrease

by specifying cell carryover evasion

1 - 5

1.5 Photometric System

Photometer :Multiwavelength photometer (absorptiometry)

Wavelengths :12 wavelengths

(340, 376, 415, 450, 480, 505, 546, 570, 600, 660, 700, 800 nm)

Monochromator :Grating

Detector :Photodiode

Linearity :Up to 2.5 Abs (10 mm cell conversion)

Photometric method:Direct photometry of reaction cell (at one or two wavelengths)

Correction :Cell blank correction prior to analysis

(passed cell blank measurement alone)

1.6 ISE (option)

Electrodes :Flow cell type, liquid-membrane ISE cartridge

Reference electrode flow path:1 MKCL, liquid flow path

Measuring temperature :36°C ±2°C (warm water circulating system)

System :Indirect (dilution) potentiometry, 50-times dilution

Measuring cycle :36 sec/sample (18 sec for sample, 18 sec for internal

standard solution)

Measured items :Na, K, Cl

Measurable samples :Serum and urine

Linearity :Na;10 to 250 mmol/L

K;1 to 100 mmol/L

Cl;10 to 250 mmol/L

Reagent bottle :Internal standard solution ;50 mL max.

Diluent ;50 mL max.

Reference electrode solution;500 mL max.

1 - 6

1.7 Installation Conditions

Power requirement :230 V, 50/60 Hz, less than 1.5 kVA

Deionized water consumption:Less than 15 L/hr

Waste liquid drain :2 systems (for concentrated and diluted liquids)

Ambient temperature/humidity: Temperature;18 to 30°C

Humidity ;20 to 80% (non-condensing)

Analyzer dimensions :720 W ×720 D ×1085 H mm

Analyzer weight :Within 200 kg

BTU :1300 kcal/hr max.

Noise (mean) in operation :< 55 dB

1.8 User Interface

Application :Routine analysis for Asia version

Display :Backlighted LCD; 256 ×128 dots, graphic

Keyboard :Touch screen keys (72 keys)

Printer :Thermal roll-paper printer (20 digits)

Multi-language

compatibility :Display;Japanese/English/Chinese/German/Spanish applicable

Printer;English alone

1.9 Deionised Water

Pressure :0.5 to 3.5 kgf/cm2

Conductivity:1 µs/cm or less, germ-free

1 - 7

1.10Analytical Methods

Assay modes :One-point

One-point end (+ prozone check)

Two-point rate

Two-point end (+ prozone check)

Three-point two-item

One-point rate two-item

Rate A (+ sample blank correction)

Rate A (+ serum indexes)

Rate B two-item (same wavelength)

Rate B two-item (different wavelengths)

ISE

Data alarms :Based on Model 7070/7170

Standard solution :22 kinds max. (positions to be shared with control sera)

Calibration types :Linear (2-point linear)

K factor

4 parameter LOGIT-LOG

5 parameter LOGIT-LOG

Spline

Segmented line

Calibration method :At startup only; all points (FULL) and reagent-blank-corrected

calibration

Calculation channels :For 8 channels

Test-to-test compensation :For 8 channels

1.11Accuracy Control

Control serum :5 kinds max. (positions shared with standard solutions)

1.12Data Storage

Routine sample data :400 samples (in data disk)

Stat sample data :50 samples (in data disk)

Control sample data :5 kinds ×30 (in SRAM)

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