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Hitachi 902 User Manual

Hitachi 902
427 pages
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SERVICE MANUAL
FOR
MODEL 902 AUTOMATIC
ANALYZER
Copyright Hitachi, Ltd. 1997. All rights reserved. Printed in Japan. Part No. 713-9039 KN-K (H-LT)

Table of Contents

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Hitachi 902 Specifications

General IconGeneral
Photometric Range0 - 3.0 Abs
Light SourceHalogen lamp
TypeAutomated Chemistry Analyzer
Wavelengths800 nm
MethodISE
Wavelength340-800 nm
Sample Volume2 μL
Operating Temperature15-30°C
Power Supply200-240V, 50/60Hz
Assay TypesISE

Summary

PRODUCT SPECIFICATIONS

Overall System

Provides a high-level overview of the analyzer's configuration, principle, and capabilities.

Sampling System

Details the components and processes involved in sample handling and aspiration.

Installation Conditions

Specifies power requirements, environmental conditions, and physical dimensions.

TROUBLESHOOTING

Alarm Code Table

Comprehensive list of alarm codes, categories, and associated names.

Motor Control Alarms

Details alarms related to motor operations and their check procedures.

Parameter Check

Outlines the process and details for checking analytical parameters.

Data Alarm

Explains data alarm registration flow, codes, and specific alarms.

FLOW PATH DIAGRAMS

Carry-over Evasion Function

Describes the function and methods for preventing sample carry-over.

ISE

Functional Specifications of Model 902 ISE

Details measurable samples, throughput, data accuracy, and concentration ranges.

EXPLANATION OF FUNCTIONS

Timing Charts

Provides detailed timing charts for various operational sequences.

Measurement

Explains the measurement process, including ADC timing and hardware configuration.

Maintenance Functions

Details essential maintenance procedures like Reset, Wash, and Mechanism Checks.

MOTORS, DETECTORS AND FUSES

Fuse List

Details the fuses used on the ACDIST and DRV boards, including rating and connected load.

Analytical Methods

Analytical Method Table

Lists various analytical methods with their photometric point settings and liquid volumes.

Types of Calibration

Describes different calibration curve types, standard solutions, and compatible assays.

Photometry Assay Concentration Calculation

Explains the calculation methods for photometry assay concentration.

INSTALLATION

Analyzer unit unpack manual

Provides instructions for unpacking the analyzer unit from its packaging.

902 Layout and Installation Conditions

Details the instrument layout, required space, and environmental conditions.

Wiring and Piping

Details the process of connecting power, water supply, and drain tubes.

Operation after Turning On Power

Guides the user through initial operations after powering on the instrument.

Adjustment and Check of Each Part

Details the adjustment procedures for probes, mechanisms, and water volumes.

Installation Manual

Provides detailed procedures for installing the product program and screen information.

MAINTENANCE AND INSPECTION

Maintenance and Inspection

Lists periodic cleaning, inspection, and parts replacement schedules.

ADJUSTMENT SPECIFICATIONS

Electrical Adjustments

Details DC power supply, LOG AMP, ADC timing, and reaction bath temperature adjustments.

Adjustment/Disassembly/Reassembly of Mechanisms

Provides step-by-step instructions for adjusting and disassembling various instrument mechanisms.

SYSTEM INTERFACE

Communication Functions

Lists host communication functions for test selecting and measurement result data.

Data Transmission Control Procedure

Details procedures for establishing data links, responses, and data transfer.

Status Transition

Provides matrices and diagrams illustrating status transitions during communication.

Text Configuration Table

Shows text configurations corresponding to frame contents and sample information.

Error Check Function

Explains how the analyzer checks received text for abnormal characters and outputs alarms.

Hardware Specifications

Lists hardware specifications for interfaces, PC boards, and signals.

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