Nakakita Temperature Controller & Temperature Indicator

Manufacturer

Nakakita Seisakusho Co., Ltd.

Country of Origin

Japan

Product Type

Marine Temperature Controller & Temperature Indicator

Marine Application

Engine Room Temperature Monitoring & Process Temperature Indication

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Product Introduction

The Nakakita Temperature Controller is a reliable marine monitoring instrument designed for continuous temperature measurement and indication onboard ships. Manufactured by Nakakita Seisakusho Japan, these instruments are widely installed in engine rooms, machinery spaces, and control stations to monitor critical operating temperatures.

Temperature monitoring is one of the most important functions in marine engineering. Excessive temperatures can lead to equipment damage, reduced efficiency, lubrication breakdown, overheating, and unexpected machinery failures.

The Nakakita Temperature Controller provides accurate and continuous indication of temperature values, enabling engineers to maintain safe operating conditions and optimize machinery performance.

Original Product Image

The image above shows actual Nakakita Temperature Controllers / Indicators supplied by SM MARINE SERVICE™. These units feature large analog displays with temperature scales for easy monitoring and quick visual interpretation.

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What Is a Nakakita Temperature Controller?

A Nakakita Temperature Controller is a marine instrumentation device designed to receive temperature signals from sensors and display the measured value on an analog indicator.

Its primary functions include:

• Continuous temperature monitoring
• Visual temperature indication
• Process monitoring
• Engine protection
• Alarm support
• Machinery performance monitoring

These instruments are commonly installed on bridge consoles, engine control rooms, and local machinery monitoring panels.

Nakakita Temperature Monitoring Images

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How the Nakakita Temperature Controller Works

The system receives input signals from temperature sensing elements installed in machinery systems.

The process generally follows these steps:

1. Temperature sensor detects process temperature.
2. Sensor transmits signal to the controller.
3. Controller processes the signal.
4. Analog pointer displays temperature value.
5. Operators continuously monitor the reading.
6. Abnormal temperatures can trigger alarms through connected systems.

This simple but highly effective method provides continuous temperature supervision.

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Main Features

Continuous Temperature Indication

Provides real-time monitoring of operating temperatures.

Large Analog Display

Easy reading from a distance.

Reliable Marine Construction

Designed for marine engine room environments.

High Accuracy

Provides stable and dependable temperature indication.

Long Service Life

Built for continuous shipboard operation.

Easy Installation

Suitable for retrofit and replacement projects.

Japanese Engineering Quality

Well-known for reliability and durability.

Product Images

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Main Components

1. Indicator Assembly

The front display section.

Functions

• Temperature indication
• Visual monitoring
• Pointer movement

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2. Measuring Mechanism

Converts sensor signals into indicator movement.

Functions

• Signal processing
• Scale positioning

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3. Temperature Scale

Provides calibrated temperature readings.

Functions

• Reading interpretation
• Process monitoring

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4. Electrical Terminal Block

Provides electrical connections.

Functions

• Sensor input
• Signal transmission

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5. Protective Housing

Protects internal components.

Functions

• Environmental protection
• Mechanical durability

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Marine Applications

The Nakakita Temperature Controller is commonly installed on:

Main Engine Systems

• Jacket Cooling Water
• Lubricating Oil Systems
• Bearing Temperature Monitoring

Auxiliary Engines

• Generator Engines
• Cooling Systems

Boiler Systems

• Feed Water Monitoring
• Heating Systems

Engine Room Equipment

• Heat Exchangers
• Pumps
• Purifiers
• Compressors

Vessel Types

• Container Ships
• Bulk Carriers
• Tankers
• Offshore Vessels
• Ro-Ro Ships
• General Cargo Ships

Marine Installation Images

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Common Problems & Troubleshooting

No Temperature Reading

Possible Causes

• Sensor failure
• Broken wiring
• Power supply issue

Corrective Actions

• Check sensor continuity
• Inspect wiring
• Verify signal input

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Incorrect Temperature Indication

Possible Causes

• Calibration drift
• Sensor deterioration
• Mechanical wear

Corrective Actions

• Verify calibration
• Replace sensor
• Inspect mechanism

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Pointer Stuck

Possible Causes

• Internal mechanical damage
• Foreign particles
• Excessive vibration

Corrective Actions

• Inspect mechanism
• Clean internal components
• Repair or replace damaged parts

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Fluctuating Readings

Possible Causes

• Loose connections
• Faulty transmitter
• Electrical interference

Corrective Actions

• Tighten wiring
• Test transmitter
• Check grounding

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Maintenance Tips

Daily Checks

• Verify normal readings
• Inspect display condition

Weekly Checks

• Inspect wiring connections
• Verify sensor operation

Monthly Checks

• Compare readings with reference instruments
• Inspect pointer movement

Quarterly Maintenance

• Check terminal connections
• Clean display window

Annual Maintenance

• Calibration verification
• Functional testing
• Sensor inspection

Maintenance Images

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Why Ships Still Use Nakakita Temperature Controllers

The Nakakita Temperature Controller remains widely used because:

• Proven Japanese engineering
• Simple operation
• High reliability
• Long service life
• Easy maintenance
• Accurate temperature monitoring
• Excellent spare parts availability

Many vessels continue operating Nakakita indicators for decades due to their durability and dependable performance.

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Frequently Asked Questions (FAQ)

What is the purpose of a Nakakita Temperature Controller?

It continuously monitors and displays temperature values from marine machinery systems.

Where is it commonly installed?

Main engines, auxiliary engines, boilers, cooling systems, and engine room control panels.

Does it require calibration?

Yes. Periodic calibration verification is recommended.

Can it be used with temperature transmitters?

Yes. Many configurations are designed to work with marine temperature transmitters and sensors.

Is it suitable for retrofit projects?

Yes. Nakakita controllers are commonly used as replacement units in existing systems.

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Short Product Description

The Nakakita Temperature Controller & Temperature Indicator is a high-quality marine temperature monitoring instrument manufactured in Japan. Designed for continuous temperature indication of engines, cooling systems, lubricating oil systems, and auxiliary machinery, it provides accurate monitoring, reliable performance, and long service life. Its robust marine construction makes it a trusted solution for shipboard temperature supervision.

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Assembly Details

Complete Assembly Includes

1. Indicator Unit

• Analog display
• Temperature scale
• Pointer mechanism

2. Measuring Mechanism

• Signal conversion assembly
• Calibration components

3. Electrical Terminal Assembly

• Input terminals
• Wiring connections

4. Housing Assembly

• Protective enclosure
• Front viewing window

5. Mounting Hardware

• Brackets
• Fasteners

6. Sensor Interface

• Temperature signal connections
• Terminal block assembly

7. Calibration Components

• Internal adjustment mechanisms
• Accuracy settings

SM MARINE SERVICE™

Marine Automation & Navigation Equipment Supplier

Available Condition:

• New Equipment
• Used Equipment
• Refurbished Equipment
• Reconditioned Equipment

Stock Location:

• Bangladesh
• China

Services:

• Worldwide Shipping
• Technical Support
• Spare Parts Supply
• Marine Equipment Sourcing

Contact Information

SM MARINE SERVICE™
Samir Market, DT Road, Pahartali, beside CDA Market, Chattogram, Bangladesh

Mobile / WhatsApp / Viber: +88 01818 929292

Email: info@smmarineservice.com

Website: www.smmarineservice.com

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