Ultrasonic open channel flow meters designed for sewage treatment applications provide accurate, non-contact flow measurement of wastewater in channels and pipes. These meters are resistant to fouling and debris, ensuring stable performance over time. Bulk purchasers benefit from easy installation, low maintenance, and compatibility with standard output signals like 4-20mA and Modbus.

Ultrasonic Open Channel Flow Meter for Sewage Treatment

Measure sewage flow reliably — even in dirty, variable open channels. Gallop’s ultrasonic open channel flow meter is engineered for municipal wastewater plants, pump stations, stormwater monitoring and industrial effluent channels. Designed to reduce site visits, simplify integration with SCADA and lower total cost of ownership while delivering accurate flow data for compliance and process control.

Why buyers choose Gallop for sewage open channel flow measurement

• Designed for harsh sewage conditions. Non-contact ultrasonic sensing avoids clogging and wear common with submerged or wetted sensors.

• High accuracy across low flows and fluctuating depths. Stable readings in slow, turbulent, or partially filled channels.

• Easy integration with existing control systems. Native outputs: 4–20mA, RS485/Modbus, optional HART; Modbus register maps and wiring diagrams included.

• Low maintenance & long service intervals. Removable transducer covers, self-cleaning coatings and remote diagnostics reduce O&M time.

• Compliance & traceability for reporting. Calibration certificates and optional on-site commissioning available.

Key product benefits (pain points we solve)

• Problem: Sensors foul / require constant cleaning.
  Solution: Gallop’s non-contact transducer and optional anti-fouling shield minimize buildup. Cleaning cycles extended, fewer site visits.

• Problem: Poor accuracy at low flow / irregular channels.
  Solution: Advanced signal processing and automatic profile compensation maintain ±1–2% of reading (application dependent) across wide depth ranges.

• Problem: Hard to integrate into SCADA / PLC.
  Solution: Out-of-the-box 4–20mA and Modbus RS485 support, Modbus register map, and cable termination diagrams make commissioning fast.

• Problem: Long procurement cycles and unclear lead times.
  Solution: Standard configurable units available from stock; Gallop provides clear lead times, MOQ info and fast quotation for projects.

Typical applications

• Municipal sewage treatment plant inflow/outflow monitoring

• Combined Sewer Overflow (CSO) and stormwater monitoring

• Sewage pump station flow monitoring

• Industrial effluent & wastewater discharge compliance

• Agricultural/irrigation drainage monitoring where open channels are used

Typical technical specifications (configurable)

Use these specs on product pages and datasheets. Final specs will depend on model and site conditions — Gallop provides tailored quotes after site review.

Installation & commissioning — what procurement teams need to know

• Site survey: Gallop recommends a short site survey (photos + simple measurements) to confirm channel geometry and optimum sensor placement. For large projects we offer remote assessment or on-site engineering.

• Mounting options: Bracket mount for flumes/weirs, side-wall mount for natural channels, and pole/bridge mounts for stormwater channels.

• Wiring & integration: Supplied with wiring diagram for 4–20mA, RS485/Modbus and pulse outputs. We provide Modbus register map and sample PLC code snippets on request.

• Calibration & acceptance test: Factory pre-calibrated; on-site calibration and acceptance tests available as an add-on. Calibration certificates supplied.

• Typical lead time: Standard models: 2–4 weeks; customized or certified units: depending on scope — Gallop will confirm in quote.

Maintenance & support

• Remote diagnostics: Real-time status via Modbus; error codes and signal quality indicators help reduce unnecessary site visits.

• Service intervals: Typical visual inspection every 6–12 months; cleaning only if heavy fouling is present.

• Spare parts & upgrades: Transducer assemblies, mounting brackets and cables available worldwide. Firmware updates via service port.

• Warranty & service plans: 12–24 month warranty options; extended maintenance & commissioning plans available.

Frequently Asked Questions (FAQ) 

Q: Will this work in a Parshall flume with high solids content?
A: Yes. Non-contact ultrasonic measurement is tolerant of solids in the flow. For heavy solids/floating debris we recommend anti-fouling shields and periodic inspections — Gallop can advise the optimal transducer and mounting.

Q: Which outputs are supported for SCADA integration?
A: Standard: isolated 4–20mA and RS485 Modbus RTU. Optional: HART, Modbus TCP (Ethernet), and pulse outputs. Full Modbus register map provided.

Q: What accuracy can we expect for sewage applications?
A: Typical field accuracy is ±1%–±3% of measured value depending on channel geometry and flow conditions. Gallop provides site assessment to estimate expected performance before purchase.

Q: How often does the sensor need cleaning?
A: Many installations run months between cleanings. Frequency depends on solids and biological growth. Gallop units include self-diagnostics to flag when cleaning is beneficial.

Q: Do you provide calibration certificates?
A: Yes — factory calibration certificates are standard; on-site calibration and third-party verification are available for projects that require them.

Q: Lead time and MOQ?
A: Standard configurable units commonly ship in 2–4 weeks. MOQ: typically 1 unit; bulk/project quotes available with prioritized lead times. Exact timing provided in formal quotation.

Q: Can you supply drawings for procurement and installation?
A: Yes — datasheets, dimensional drawings, mounting details and wiring diagrams are included with every quote.