Maritime & Power Generation Applications
Why measuring water in fuel and lubricants matters for ships and engines

Even small amounts of water in marine or power plant fuels and lubrication oils can damage engines, reduce combustion efficiency, and increase maintenance costs. Whether you're using MGO, HFO, or biofuels, undetected water introduces risks of instability, corrosion, or microbial growth. In lube oil systems, it can result in wear and degradation of moving parts.
Inline water content measurement enables operators to:
Sensor features:
Water contamination is not always visible or caught by lab sampling. Real-time inline monitoring ensures early detection before problems arise.
Inline water content measurement enables operators to:
- Ensure quality during bunkering and detect contamination
- Prevent high water levels in day tanks and lube systems
- Monitor fuel and oil compatibility, especially with biofuels
- Avoid long-term engine and equipment damage
Sensor features:
- Inline installation for real-time data
- Output via 4–20 mA or Modbus
- Compatible with marine fuels, biofuels, lube oils (ISO VG), and blends
- Integrates seamlessly into IPCO Power fuel treatment systems
Water contamination is not always visible or caught by lab sampling. Real-time inline monitoring ensures early detection before problems arise.
Water detection systems play a critical role in multiple marine and power applications:
Fuel Monitoring:
Lubrication Systems:
Hydraulic Systems:
Separator Efficiency:
Fuel Monitoring:
- Detecting water in fuel during bunkering operations to ensure quality
- Monitoring fuel tanks for water ingress, especially in heavy fuel oil (HFO) systems
Lubrication Systems:
- Ensuring lubrication oils (ISO VG types) are free from water contamination, critical for engine reliability
- Preventing water ingress in propulsion systems, gearboxes, and generator sets
Hydraulic Systems:
- Monitoring hydraulic circuits to prevent damage from water contamination in gear oils
Separator Efficiency:
- Verifying the effectiveness of centrifuges and separators in removing water from oil
Expected Accuracy of the ZT-100 Watercut Meter
When correctly installed with proper stream conditioning, the ZT-100 delivers highly precise measurements across a wide range of water content levels:
When correctly installed with proper stream conditioning, the ZT-100 delivers highly precise measurements across a wide range of water content levels:
- ± 0.01% up to 5% water cut
- ± 0.1% up to 5% and 10% water cut
- ± 0.2% between 10% and 25% water cut
- ± 0.5% between 25% and 50% water cut
- ± 1% between 50% and 100% water cut