Hitech Instruments Mark II G1010 Oxygen Analyser – Complete Marine Oxygen Monitoring System Guide, Maintenance, Calibration & Troubleshooting
Hitech Instruments Mark II G1010 Oxygen Analyser
Manufacturer
Hitech Instruments Ltd.
Country of Origin
United Kingdom (England)
Product Type
Digital Oxygen Analyser
Marine Application
Inert Gas Systems, Cargo Tank Monitoring, Gas Measurement & Safety Monitoring Systems
Product Introduction
The Hitech Instruments Mark II G1010 Oxygen Analyser is a high-precision oxygen monitoring instrument widely used onboard tankers, chemical carriers, LNG vessels, offshore platforms, and industrial process systems.
Designed and manufactured in the United Kingdom, the G1010 provides continuous oxygen concentration measurement in gas streams where accurate oxygen monitoring is critical for safety and operational efficiency.
On tanker vessels, oxygen analyzers play an essential role in monitoring inert gas systems. Maintaining oxygen content below prescribed limits helps prevent the formation of explosive atmospheres inside cargo tanks.
The Mark II G1010 is recognized for its reliability, accuracy, simple calibration procedures, and suitability for harsh marine environments.
Original Product Image
The image above shows actual Hitech Instruments Mark II G1010 Oxygen Analysers available from SM MARINE SERVICE™.
What Is the Hitech G1010 Oxygen Analyser?
The G1010 Oxygen Analyser is an electronic instrument designed to continuously measure oxygen concentration within a sampled gas stream.
It helps marine operators:
- Monitor inert gas quality
- Verify cargo tank safety
- Detect oxygen ingress
- Prevent explosive atmospheres
- Improve operational safety
- Meet international safety regulations
The analyzer provides continuous digital indication of oxygen concentration and activates alarms when preset limits are exceeded.
Hitech G1010 Oxygen Analyser Images
Working Principle
The G1010 continuously samples gas from the monitored system.
Operating Sequence
- Gas sample enters the analyzer.
- Oxygen sensor measures oxygen concentration.
- Signal is processed by internal electronics.
- Oxygen percentage is displayed on the screen.
- Alarm thresholds are monitored continuously.
- High oxygen conditions activate alarm outputs.
- Operators take corrective action if required.
This allows continuous monitoring of oxygen content within inert gas systems and cargo spaces.
Main Features
High Accuracy Measurement
Provides precise oxygen concentration readings.
Continuous Monitoring
24-hour real-time oxygen measurement.
Digital Display
Easy-to-read oxygen concentration display.
Dual Alarm System
Alarm 1 and Alarm 2 outputs for safety protection.
User-Friendly Calibration
Simple calibration procedures.
Marine Approved Design
Suitable for shipboard installation.
Reliable Sensor Technology
Long operational life with stable measurement performance.
Additional Product Images
Main Components
1. Display Module
Provides oxygen concentration readings.
Functions
- Digital indication
- Alarm display
- Parameter settings
2. Oxygen Sensor
Measures oxygen concentration.
Functions
- Oxygen detection
- Signal generation
3. Alarm Circuit
Provides warning outputs.
Functions
- High oxygen alarm
- System fault alarm
4. Calibration Circuit
Allows analyzer adjustment.
Functions
- Zero calibration
- Span calibration
5. Power Supply Section
Supplies operating power.
Functions
- Instrument operation
- Signal processing
Marine Applications
The G1010 Oxygen Analyser is commonly used in:
Oil Tankers
- Cargo tank inert gas monitoring
- Oxygen content verification
Chemical Tankers
- Hazardous cargo monitoring
- Safety verification
LNG & LPG Vessels
- Gas atmosphere monitoring
Offshore Platforms
- Process gas analysis
- Safety monitoring
Engine Room Systems
- Process monitoring
- Safety applications
Marine Installation Images
Importance in Inert Gas Systems
International tanker regulations require oxygen concentration inside cargo tanks to remain below safe limits.
The G1010 assists operators by:
- Monitoring oxygen continuously
- Detecting oxygen ingress
- Verifying inert gas effectiveness
- Preventing explosive conditions
- Supporting regulatory compliance
This makes the analyzer a critical safety device aboard tanker vessels.
Common Problems & Troubleshooting
No Display
Possible Causes
- Power supply failure
- Internal fuse issue
- Wiring fault
Corrective Actions
- Verify power supply
- Check fuses
- Inspect wiring
Unstable Oxygen Reading
Possible Causes
- Sensor aging
- Moisture contamination
- Sample flow problems
Corrective Actions
- Inspect sensor
- Verify sample flow
- Check moisture traps
Calibration Failure
Possible Causes
- Sensor degradation
- Incorrect calibration gas
- Internal circuit issue
Corrective Actions
- Verify calibration gas
- Replace sensor if necessary
- Inspect electronics
Alarm Continuously Active
Possible Causes
- High oxygen concentration
- Incorrect alarm settings
- Sensor fault
Corrective Actions
- Verify actual oxygen level
- Check settings
- Test sensor operation
Alarm Functions
Alarm 1
Early warning alarm.
Alarm 2
High oxygen alarm.
Sensor Fault Alarm
Indicates analyzer malfunction.
Calibration Error Alarm
Indicates calibration failure.
Maintenance Tips
Daily Checks
- Verify displayed readings
- Check alarm status
Weekly Checks
- Inspect sample lines
- Verify gas flow
Monthly Checks
- Functional alarm testing
- Visual inspection
Quarterly Maintenance
- Sensor performance verification
- Calibration check
Annual Maintenance
- Complete calibration
- Sensor replacement if required
- Full functional testing
Maintenance Images
Why Ships Still Use the G1010 Oxygen Analyser
The Mark II G1010 remains widely used because:
- Proven reliability
- Accurate oxygen measurement
- Simple operation
- Easy calibration
- Long service life
- Suitable for marine environments
- Worldwide support availability
Many vessels continue using the G1010 due to its dependable performance and robust construction.
Frequently Asked Questions (FAQ)
What does the G1010 measure?
It measures oxygen concentration in gas streams.
Where is the G1010 commonly used?
In inert gas systems, cargo tanks, offshore installations, and industrial process systems.
Why is oxygen monitoring important?
It helps prevent explosive atmospheres and improves operational safety.
Does the analyzer require calibration?
Yes. Regular calibration is necessary to maintain accuracy.
Can the oxygen sensor be replaced?
Yes. Oxygen sensors are consumable components and may require periodic replacement.
Short Product Description
The Hitech Instruments Mark II G1010 Oxygen Analyser is a UK-manufactured oxygen monitoring system designed for marine and industrial applications. It continuously measures oxygen concentration, provides alarm outputs, and supports inert gas system safety. Known for accuracy, reliability, and ease of maintenance, the G1010 remains a trusted oxygen monitoring solution for tanker fleets worldwide.
Assembly Details
Complete G1010 Oxygen Analyser Assembly Includes
1. Main Display Unit
- Digital oxygen display
- User interface controls
2. Oxygen Sensor Assembly
- Oxygen sensing element
- Sensor housing
3. Sample Gas System
- Gas inlet connections
- Sample flow control
4. Alarm Circuit Module
- Alarm 1 output
- Alarm 2 output
5. Calibration Section
- Zero adjustment
- Span adjustment
6. Power Supply Assembly
- Internal power regulation
- Protection circuitry
7. Terminal Connection Board
- Signal wiring
- Alarm outputs
- Power connections
8. Mounting Hardware
- Panel mounting assembly
- Fastening accessories
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Contact Information
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