Reliable Measurement Solutions for Marine VOCs Monitoring

As IMO emission regulations continue to tighten, VOC control has become a standard requirement in marine environmental protection systems. Ensuring safe, stable, and compliant operation of VOC treatment units—such as RTO systems, adsorption–desorption units, and condensation recovery equipment—requires accurate and reliable measurement across the entire process.

Micro Sensor provides precise measurement of pressure, flow, temperature, and level to support effective VOC treatment, even in harsh marine environments characterized by salt spray, vibration, high humidity, and wide temperature fluctuations. Designed for long-term offshore operation, these instruments enable stable system control and help optimize treatment efficiency.

Certified to CCS, DNV, ABS, ATEX, IECEx, CE, EAC, and RoHS standards, Micro Sensor’s measurement solutions are trusted worldwide to support safer operations and more sustainable shipping.

Pressure Measurement

In marine VOC treatment systems, pressure monitoring is critical to adsorption efficiency, combustion performance, and overall system safety.

⭐ High-Accuracy, High-Reliability Pressure Transmitters

Measuring range: –100kPa～100MPa

Accuracy options: ±0.075%FS / ±0.05%FS / ±0.5%FS / ±0.1%FS

Output signals: 4–20mA / 0–10V DC / HART / RS485 / Bluetooth

Vibration resistance: up to 20g, 20Hz–500 Hz

IP rating: IP65 / IP67

Certifications: CCS, ABS, BV, DNV, KR, LR, NK, RS, ATEX, IECEx, CSA, NEPSI, PCEC, EAC, PAC, CE, RoHS

Application Value

In addition, pressure switches are commonly used for interlocking protection at critical points. With fast response and compact design, they serve as the final safeguard for system safety.

Level Measurement

Marine VOC treatment systems require reliable level monitoring in units such as condensate tanks, spray liquid systems, and cooling water reservoirs. Our level measurement portfolio covers multiple measurement technologies, enabling optimal selection for different installation conditions and process requirements.

⭐ Submersible Level Transmitters

Measuring range: 0–200m

Accuracy: ±0.075%FS / ±0.05%FS / ±0.25%FS / ±0.1%FS

Output: 4–20mA / Modbus

IP rating: up to IP68

Operating temperature: –20℃ to 80℃ (marine liquid environments)

⭐ Radar Level Transmitters

Measuring range: 0–150m

Accuracy: up to ±2mm

Excellent resistance to vapor and condensation interference

Application Value

・Real-time condensate level control

・Stable level regulation in spray towers

・Overflow protection and dry-run protection

Temperature Measurement

The oxidation reactions and adsorption–desorption cycles in VOC treatment systems require precise temperature control and long-term stability.

⭐ RTD / Thermocouple Temperature Transmitters

Temperature range: –200℃ to 1600℃

Accuracy: up to ±0.1%FS

Outputs: 4–20mA / HART / mV / Ω

Vibration resistance: up to 10g, 10Hz–1000Hz

Protection rating: up to IP67

Certifications: CCS, ABS, DNV, CE, RoHS, etc.

Application Value

Flow Measurement

Different stages of marine VOC treatment systems impose distinct requirements on flow measurement, depending on the process medium, flow range, and required accuracy. To meet these diverse needs, Micro Sensor offers a range of flow measurement technologies—including electromagnetic, insertion, Coriolis mass, and vortex flowmeters—suitable for flue gas, process gases, liquids, and steam.

⭐ Electromagnetic Flowmeters

Designed for conductive liquids such as cooling water, condensate, and spray media

・Nominal diameters: DN3–DN2400
・Accuracy: up to ±0.2%
・Outputs: HART / RS485 / 1–5V / Profibus-DP/PA / frequency, pulse, relay
・IP rating: up to IP68
・Certifications: CCS, ATEX, EAC, PCEC, CNEX, SIL, CE

Application Value

Flow monitoring in condensation recovery systems

Stable control of spray circulation

Enhanced condensation efficiency

⭐ Coriolis Mass Flowmeters

・Ideal for high-accuracy measurement of VOCs, fuel gas, and desorption gases

・Accuracy: up to ±0.15%FS

・Simultaneous measurement outputs for mass flow, density, and temperature

・Low sensitivity to variations in viscosity and temperature

・Suitable for complex VOCs mixtures

Application Value

・Precise control of desorption gas flow to optimize regeneration efficiency

・Stable fuel gas supply for enhanced RTO combustion performance

・Density-based diagnostics for automatic compensation of media variations

・Enhanced overall energy efficiency, especially in marine VOC systems with highly variable operating conditions and unstable media composition

⭐ Vortex Flowmeters

Suitable for versatile flow measurement of steam, compressed air, and selected gases and liquids.

・Accuracy: up to ±1%

・Wide turndown ratio

・No moving parts, excellent vibration resistance

・Operating temperature: –40℃ to 550℃ (varies by configuration)

Appliation Value

・Steam flow monitoring in VOCs regeneration systems

・Combustion air and process gas flow regulation

・Air and steam balance control in auxiliary power systems

Renowned for their robust construction, durability, and low maintenance, vortex flowmeters are especially well suited for continuous measurement during extended marine operations.