Gas Flow Meters
Gas Flow Meters measure air/gas flow in aeration basins to optimize oxygen supply and efficiency.
FCI ST Series ST102AA Dual Point averaging Air Flow Meter for large line sizesFCI ST102AA thermal mass flow meter with two sensing points that average air flow across large ducts and pipes; no moving parts.
ST100A Flow MeterFCI ST100A thermal mass flow meter for process gases, with 4-20 mA, pulse, HART, FOUNDATION Fieldbus, PROFIBUS or Modbus outputs.
ST80 Flow MeterFCI ST80 thermal mass flow meter for industrial air and gas, with a wide choice of sensors (including wet gas) and process connections.
ST75 Flow MeterFCI ST75 in-line thermal mass flow meter for air and gases in 1/4 to 2 in lines, with 100:1 turndown and no moving parts.
ST51 Flow MeterFCI ST51/ST51A insertion thermal mass flow meter for biogas, digester and landfill gas, methane, natural gas and air, in 2.5 to 24 in pipes.
ST50 Flow MeterFCI ST50 insertion thermal mass flow meter for air, compressed air and nitrogen in 2.5 to 24 in pipes, with 4-20 mA flow and temperature outputs.
Flow Switches
Flow switches detect liquid or gas flow presence in aeration systems, ensuring proper operation and preventing damage.
Dwyer Series TDFS2 Thermal Dispersion Flow Switch (Non-Mechanical, Low Pressure Drop, Large Pipes)Measure Flow Above or Below User Set Flow Rate; Normally-Open & Normally-Closed NPN Outputs; LED Indication
FS10i Flow MeterFCI FS10i compact thermal mass flow meter for air and compressed air, with a 4-20 mA output, a programmable alarm relay and a SIL 2 rating.
FCI FS10A Analyzer Flow Switch + MonitorLow‑Flow Switch & Monitor for Analyzer Lines; ±2 % Setpoint
FLT93 Thermal Dispersion SwitchFCI FLT93 heavy-duty thermal dispersion flow and level switch with no moving parts, for liquids, gases and interfaces in process plants.
Flow Conditioner
Flow conditioners improve flow profile accuracy for gas flow meters, enhancing aeration control efficiency.
Flow Meters
Flow Meters monitor wastewater and air flow rates for effective treatment, ensuring optimal aeration and process control.
Water Quality Sensing
Water Quality Sensing measures dissolved oxygen and pH to maintain optimal conditions for biological treatment in aeration.
Level Transmitters
Level Transmitters monitor wastewater levels in aeration tanks, preventing overflows and ensuring consistent treatment volume.
Float Switches
Float switches detect liquid levels in aeration basins and sumps, preventing overflows or dry-running of pumps.
Dwyer Series-L6 Compact Flotect® Level Switch – Magnetic Actuation for Liquid ControlCompact liquid level switch; SPDT; installs in-wall; up to 2000 psig
Dwyer Series-L4 Magnetic Float Switch for Tank Level Control – No Moving PartsMagnetic float switch; leak‑proof body; SPDT; detects tank high/low level
Dwyer Series F6-F7 Vertical Level Switches for Water, Oil & ChemicalsDwyer F6/F7 vertical float level switches for water, oils and chemicals: hermetically sealed reed switch, many float materials, up to 750 psig and 149 °C.
Dwyer F6/F7 Horizontal Mount Level Switch, Multi-MaterialOpen/Closed circuits; Water, oils & chemicals compatible; Through wall mounting
Application data from the DwyerOmega Application Navigator ↗. Ronsor can help adapt it to your site.





