Water & Effluent Treatment
Biogas Digester & Flare Stack
Monitor digestion, gas handling, and flare-system operating conditions.
Measures: Gas flow · Pressure · Temperature · H2S · Foam & level viewing
Pressure Gauges
Measures internal digester pressure, crucial for safety and process efficiency.
Miljoco P4098LY-SS Industrial GaugeMiljoco P4098LY-SS 4 in industrial pressure gauge with 316 SS wetted parts and stainless case: ±1% (Grade 1A), dry or glycerine/silicone filled.
Miljoco P6098LY-SS Industrial GaugeMiljoco P6098LY-SS 6 in industrial pressure gauge with 316 SS wetted parts: ±1% (Grade 1A), dry or glycerine/silicone filled, easy to read from a distance.
Miljoco P4520L Process GaugeMiljoco P4520L 4.5 in process gauge with solid-front polypropylene case and stainless wetted parts: ±0.5% (Grade 2A), dry or liquid filled, for corrosive areas.
Weiss LF442Z Liquid Filled Pressure Gauge, Zytel Nylon CaseWeiss LF442Z 4 in liquid-filled pressure gauge in a Zytel nylon case with 316 SS internals: ±1% (Grade 1A), vacuum to 10,000 psi.
Weiss NF602 Dry Pressure Gauge, Stainless Steel CaseWeiss NF602 6 in dry pressure gauge with 304 SS case and 316 SS internals: ±0.5% (Grade 2A), vacuum to 15,000 psi, tempered glass window.
Weiss NF402 Series 4" Industrial Gauge with 304 SS Stainless Steel CaseWeiss NF402 4 in dry (non-filled) industrial pressure gauge with 304 SS case and 316 SS internals: ±1% accuracy, ranges to 10,000 psi.
Gas Flow Meters
Measures biogas flow from the digester to the flare, optimizing flare operation and efficiency.
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.
Flow Conditioner
Conditions biogas flow before measurement, ensuring accurate readings for flare management.
Flow Switches
Detects biogas flow to the flare, verifying operation and preventing uncombusted gas release.
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.
Differential Pressure Switches
Monitors pressure differences in gas lines, indicating blockages or flow issues for safety.
Temperature Sensors & Transmitters
Measures biogas temperature for process control and to ensure optimal flare combustion.
Flanged Magnetic Flowmeters
Measure raw sludge and digestate flow to optimize digester loading and monitor output.
Dwyer FMG490 Series Magmeter w/Remote Display and Pulse & Optional 4 to 20 mA OutputFMG490 flanged electromagnetic flowmeter, 3 to 12 in, with a remote display for meters in pits or awkward spots: ±0.75% of reading, pulse and optional 4-20 mA.
Dwyer FMG480 Series Magmeter with Integrated Display, Pulse & 4 to 20 mA OutputFMG480 flanged electromagnetic flowmeter for water and conductive liquids, 3 to 12 in: ±0.75% of reading, integrated display, pulse and optional 4-20 mA, IP68.
Differential Pressure Transmitters
Measures pressure differentials in the flare system, indicating flow and combustion efficiency.
Methane Detectors
Detects methane near the digester and flare, ensuring safety and preventing gas leaks.
Dynament Low Power Dual-Gas Methane/Carbon Dioxide Infrared sensorsLow‑Power Dual‑Gas IR Sensor; Battery Friendly, CH₄/CO₂
Dynament Standard Series - Hydrocarbon Infrared SensorsStandard IR Hydrocarbon Sensor; 4-20mA output, Measures CH₄ from 0‑100%v
Dynament Dual-Gas Methane/Carbon Dioxide Infrared sensorsDual‑Gas IR Sensor; Measures CH₄ + CO₂ Simultaneously
Dynament Platinum Series - Hydrocarbon Infrared Gas SensorsPlatinum IR Hydrocarbon Sensor; Measures CH₄ from 0‑100%v
Dynament FGD10A Flameproof Fixed Gas DetectorsEx d gas detector with 3 alarm relays; non-intrusive mag-pen menu; detects hydrocarbons, hydrogen, or toxic gases.
Dynament FGD10B Flameproof Fixed Gas DetectorsEx d gas detector in IP65 aluminium / SS housing; accepts plug-in handheld configurator; detects hydrocarbons, hydrogen, or toxic gases.
H2S Analysis
Electrochemical H2S analysers measure hydrogen sulphide in the biogas before and after the H2S scrubber, so the scrubber is working before the gas reaches engines or boilers.
Digester Viewing & Foam Monitoring
A process camera with its own lighting looks into the digester through a single flanged nozzle, so operators can watch the liquid and foam level from the control room and dose antifoam before foam reaches the gas outlet.
Application data from the DwyerOmega Application Navigator ↗. Ronsor can help adapt it to your site.
Application stories
Visual Monitoring and Foam Control in Vessels
Bioprocess foaming occurs throughout a cell culture and must be constantly monitored to prevent filter...
Anaerobic Digestion/Biogas Systems
Digester gas consists of methane, CO2 and other trace elements and requires mass flow measurement to properly...