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RIKEN
PORTABLE COMBINATION GAS DETECTOR
MODEL ‚ q ‚ w • | ‚ T ‚ P ‚ U
Precaution in operation
• EAfter reading this manual well, start to operate this instrument.
• EKeep this manual where to carry out easily
• EWhen take out this manual by use of construction work, be sure to put it
where it was.
• EDo not use this instrument for no other than given purpose.
• EWhen operate this instrument without using this manual or repair it by use of
no other parts than the genuine one, the safety and quality of products could
not be guaranteed. When any accident should take place by those irregular
method, we cannot assume the responsibility for it.
‚ q ‚ w • | ‚ T ‚ P ‚ V
OPERATION MANUAL
MARINE USE
2-7-6 Azusawa Itabashi-k
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: 2 7 2 2 6 3 8 R K N F N E
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: ( 0 3 ) 3 5 5 8 9 1 1 0 G ‡ V
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: i n t o d e p t @ r i k e n k e i k i . c o . j p
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Summarization of Contents
Introduction and Safety Symbols
Hazard Symbol Definitions
Explains hazard symbols (Danger, Warning, Caution, Note) and their meanings.
Safety Precautions
Critical Operational Warnings
Details safety warnings regarding modifications, explosion-proof product use, and measurement environments.
Handling and Environmental Cautions
Lists cautions for handling, water, electrical noise, and environmental changes.
Component Identification
Device Controls and Indicators
Describes the function of each button, LED, and the display on the device.
Device Display Modes
Gas Concentration Display Formats
Explains how gas concentrations are displayed for HC, Oxygen, and Hydrogen Sulfide (Low/High).
Device Operation Procedures
Pre-Operation Checks and Preparation
Details pre-operation checks for the instrument, filter tube, and sampling hose, plus preparation steps.
Sampling Hose Connection Guide
Provides instructions on how to connect the sampling hose to the instrument and filter tube.
Flow Monitor and Zero Point Adjustment
Flow Monitor Operation Check
Explains how to check the flow monitor function to ensure proper suction operation.
Zero Point Calibration Procedure
Details the process for zero point calibration for HC, O2, and H2S gases.
Measurement and Operational Procedures
Operational Safety Guidelines
Outlines critical safety guidelines for operation, including gas hazards and environmental considerations.
Measurement Notes and Tips
Provides important notes regarding high-density gas, volume measurements, zero adjustment, and %LEL readings.
Peak Value and Pump Control
Viewing Peak Measured Values
Explains how to view the peak measured value for HC and H2S, and how to clear it.
Managing Pump Operation
Details how to turn the pump on and off for temporary operation stops or power saving.
Concluding Operation Procedures
Post-Operation Treatment
Describes the steps for proper treatment after operation, including hose winding and air cleaning.
Device Power Off Procedure
Explains the procedure for safely powering off the instrument using the power switch.
Practical Application Examples
Tanker Gas Monitoring Example
Illustrates using the device to monitor gas density inside crude oil tankers.
Gas Measurement Guidance
Provides guidance on measuring O2 in inert gas and interpreting HC and H2S readings.
Alarm System Features
Visual Alarm Indicators
Describes the visual indicators for 1st, 2nd, and Over alarms, including blinking patterns.
Audible and Visual Alarm Actions
Details the behavior of the alarm buzzer and LED lamp for different alarm types.
Trouble Displays and Alarms
Low Flow Alarm Conditions
Explains the "LOW FLOW" alarm, pump stoppage, and how to reset the alarm.
Low Battery Warning
Details the "REPLACE BATT." display, continuous buzzer, and procedure for battery replacement.
System and Sensor Faults
System Failure Alerts
Covers "SYSTEM FAIL" display, continuous buzzer, and inability to operate after failure.
Sensor Failure Alerts
Explains "FAIL SENSOR" display, continuous buzzer, and inability to operate after sensor failure.
Device Functions Overview
Operation Mode Navigation
Explains how to enter different modes like alarm display, data display, and data logger using the MODE key.
Date/Time and LCD Backlight
Setting Device Date and Time
Guides the user through setting the year, month, day, hour, and minute on the device.
LCD Backlight Behavior
Explains when the LCD backlight is active (initial clear, operation, alarm, trouble).
Data Logging Features
Data Logger Functionality
Details the five data logger functions: Interval trend, Alarm trend, Alarm event, Trouble event, and Calibration history.
Maintenance and Upkeep
Battery Replacement Procedure
Provides a step-by-step guide for replacing the device's batteries safely and correctly.
Gas Calibration Procedures
Span Adjustment for Gas Types
Details the process for span calibration of HC, O2, and H2S gases using calibration gas.
Calibration Safety and Handling
Calibration Gas Handling Practices
Explains safe handling of compressed calibration gas cylinders and sampling bags.
Calibration Gas Hazards
Warns against using lighter gas for calibration and directly plugging canned gas.
H2S Calibration Gas Preparation
Using the H2S Gas Checker CK-82
Details the steps for preparing H2S calibration gas using the CK-82 device.
Component Replacement and Checks
Filter Replacement Instructions
Provides instructions on how to replace the cotton filter in the flow monitor.
Sensor Replacement Indicators
Lists the conditions indicating sensor end-of-life and the need for replacement.
Routine Maintenance Checks
Outlines daily checks for components and functions, and recommends regular maintenance.
Storage, Disposal, and Scrap
Long-Term Storage Guidelines
Specifies the recommended temperature, humidity, and environment for storing the instrument.
Product Disposal Procedures
Advises on following local regulations for disposing of the product and its components.
Detection Principles
NDIR Detection Method
Describes the Non-Dispersive Infrared (NDIR) method used for gas detection.
Galvanic Cell Detection Method
Explains the Galvanic Cell method for oxygen measurement.
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