Seiko QC-6M4 User Manual

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船舶用親時計
MARINE MASTER CLOCK
ＱＣ－６Ｍ４
このたびはセイコ－船舶用親時計ＱＣ－６Ｍ４をお買い上げいただきまして、
まことにありがとうございました。
この取扱説明書を最後までお読みのうえ、正しくお取り扱いいただきますよう
お願いいたします。
なお、取扱説明書は大切に保管しておいてください。
Thank you so much for purchasing Seiko Marine Master Clock QC-6M4.
Before putting your QC-6M4 to use, please be sure to read this manual
carefully as it has been prepared to assist in the installation, operation and
maintenance of your QC-6M4.
You are recommended to keep this manual for future reference.

Seiko QC-6M4 Specifications

General

Brand	Seiko
Model	QC-6M4
Category	Clock
Language	English

Summary

Attention and Symbols

Manual Usage Restrictions

Notes on copying, changes, and proper use of the manual.

Danger and Caution Symbols

Explains the meaning of danger, caution, and other symbols used.

Pictorial Symbol Guidance

Explains symbols for prohibitions and required actions.

Safety Precautions

Handling Abnormal Situations

Procedures for handling abnormal situations like smoke or unusual odors.

Prohibition of Unauthorized Modifications

Warning against unauthorized disassembly, repair, or modification of the equipment.

Prevent Foreign Object Entry

Instructions to prevent inserting foreign objects into the device.

Power Supply Requirements

Specifies the correct power supply to use for the product.

Earth Terminal Grounding

Importance of grounding the earth terminal for protection against inductive disturbance.

Installation and Wiring

Installing the Master Clock

Instructions for mounting the master clock on a wall or panel.

Wiring to Power Supply and Secondary Clocks

Details on connecting power supply and secondary clocks to the master clock.

Handling Method

Inspection Before Power On

Checks to perform before powering on the device.

Starting Operation and Controls

Details on the operation panel and switches for initial setup.

Initial Operation Procedures

Steps for performing the initial operation and setting up clocks.

Setting Universal Time (UT)

How to input and set the Universal Time (UT) on the device.

Setting Ship Time (LT)

How to input and set the Ship Time (LT) on the device.

Synchronizing 30-Second Clocks

Procedure for synchronizing the hands of 30-second secondary clocks.

Clock Adjustment Display

Displays shown during the clock hand adjustment process.

Normal Operation

Switching UT/LT Display

How to switch between Universal Time (UT) and Ship Time (LT) displays.

0-Second Adjustment (±30 Seconds)

Correcting accumulated clock errors within 30 seconds.

Clock Error Correction Details

Detailed procedures for correcting clock errors when running fast or slow.

LT Adjustment

Step-by-step guide to adjust the Ship Time (LT) display.

Operation of Dimmer

How to adjust the brightness of the LCD display illumination.

Alarm Display

Resumed From Power Failure

Display status when power is resumed after an outage.

Suspension of Output Line

Status display when output lines are suspended due to abnormal conditions.

Abnormal Power Supply

Display when abnormal power supply (voltage drop) is detected.

Connection of Alarm and Logger

Sample Connection Diagram

Illustrates how to connect alarm and logger signals.

Maintenance

Troubleshooting Common Issues

Table listing phenomena, causes, and countermeasures for common issues.

External View and Dimensions

Diagram of Unit Layout

Shows the physical layout, dimensions, and mounting points of the unit.

Specifications

Performance and Accuracy

Details on accuracy, operating temperature, and input/output specs.

Power Supply Details

Information on AC and DC power supply ranges and consumption.

After-Sale Service Contact Information

List of Service Contacts

Contact details for various service centers worldwide.