Flow and Water Quality Monitoring for an RO System in Indonesia
Project Overview
A reverse osmosis system in Indonesia experienced unstable raw water quality, frequent membrane fouling, and increasing maintenance costs.
The project required continuous monitoring of flow and critical water quality parameters to support stable operation and consistent purified water quality.
Application Challenges
The main requirements included:
- Continuous flow, pH, conductivity, and TDS monitoring
- Faster detection of changing raw water conditions
- Reduced membrane fouling and cleaning requirements
- Reliable operation in an outdoor, humid environment
- Integration with the RO control panel
Solution Provided
The project adopted:
- 10 SUP-LDG-A100 electromagnetic flowmeters
- 5 SUP-PH6.5 pH controllers
- 5 SUP-TDS210-B conductivity and TDS meters
- 5 SUP-EC8.0 conductivity instruments
The recorded flow application conditions included:
- Medium: RO water
- Pipeline size: Approximately 1.25 inches (DN32)
- Pressure: Approximately 43.5 psi (0.3 MPa)
- Flow range: Approximately 6–62 gpm (1.4–14 m³/h)
- Installation points: Inlet and outlet pipelines
- Communication: 4–20 mA and RS485
- Environment: Outdoor and humid
The instruments support continuous online measurement, Modbus communication, and connection to the RO control panel. Supmea also provided model-selection assistance, online installation guidance, and volume-order support.
Results and Benefits
According to the project records and customer feedback, the solution delivered:
- Flow measurement accuracy of ±0.5%
- 30% faster response to conductivity and TDS fluctuations
- 20% reduction in membrane-cleaning frequency
- 15% reduction in operating costs
- 99.5% monitoring-system uptime
- 18% improvement in overall RO process efficiency
- Manual inspection frequency reduced from daily to weekly
The integrated monitoring system enables operators to identify water quality changes and adjust the RO process more quickly.
Supmea instrumentation, available through BayMeters, provides coordinated flow and water quality monitoring for RO systems requiring stable operation and reliable control-system integration.