Current position > News detail
『ADS Flow Meter: Open Channel Wastewater and Urban Sewer Level Loggers』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
ADS Flow Meter for Open Channel Wastewater and Urban Sewer Level Loggers: What Silver Automation Instruments Supplies
Quick Answer: Silver Automation Instruments supplies open channel flow meters and submersible level loggers for wastewater and sewer networks. These devices replace legacy ADS type meters with 4-20 mA HART, Modbus RTU, battery logging, and IP68 sensors. Send us your channel dimensions, flow range, and power supply and we return a fixed quote within 24 hours.
Open Channel Wastewater Flow Measurement Without Guesswork
Most wastewater engineers know this problem. A flume or weir works for a few months. Then grease, rags, or grit change the level reading. The flow total drifts. A city crew opens the manhole and finds the logger flooded. That is the moment when a cheap sensor becomes expensive.
Silver Instruments builds open channel flow meters for Parshall flumes, Palmer-Bowlus flumes, V-notch weirs, and rectangular weirs. The transmitter measures level with a non-contact ultrasonic sensor or a submerged pressure transmitter. The built-in flow table converts level to flow. You get a live totalizer on the LCD and a 4-20 mA HART signal for SCADA or a pump station PLC.
Urban Sewer Level Loggers That Survive Real Conditions
The urban sewer is worse than a clean water channel. Methane, hydrogen sulfide, humidity, and solids are normal. Silver Instruments uses a sealed IP68 submersible level sensor with a 316L stainless steel body and a vented cable. The logger sits inside the manhole and runs on a lithium battery for up to two years. You can also power it from a 10-30 V DC supply or a small solar panel.
In practice, most engineers skip the data retrieval plan. They install the logger, close the manhole, and forget the cable. That is why we supply Bluetooth and Modbus RTU options. A technician can stand at the roadside, connect a phone or laptop, and download the data without entering a confined space. Because sewer networks in Southeast Asia and Latin America often lack stable AC power, the battery logger matters. Sample intervals run from one second to one hour. At a 15 minute interval the logger runs close to two years.
Key Parameters Engineers Ask About
Input and output signals often decide the purchase. Our open channel flow meter supports 4-20 mA HART, RS485 Modbus RTU, and two relay outputs. The relay can trigger a sampler when flow exceeds a set point. The level input accepts an ultrasonic sensor from 0.25 m to 10 m or a pressure sensor from 0.5 m to 20 m. Accuracy is ±0.25 percent of reading for the pressure version and ±1 mm for the ultrasonic version. Power supply is 10-30 V DC for the transmitter. The sewer logger accepts a 3.6 V lithium battery, 12 V DC, or 24 V DC. The enclosure rating is IP68 for the sensor and IP65 for the logger. W
Here is the thing. A specification sheet only helps when the application details are clear. We usually ask for the flume type, channel width, maximum level, minimum level, and the signal destination. Those five answers decide the sensor span, cable length, and output option.
Common Installations We Support
A water utility in Metro Manila needed a level logger for a combined sewer overflow outfall. The existing ADS type meter was obsolete and spare parts cost more than a new unit. Silver Instruments supplied a submersible pressure logger with Modbus RTU and a vented cable. It has run for 14 months without a false high level alarm.
An industrial park in Binh Duong, Vietnam required open channel flow measurement for treated wastewater discharge. The customer used a Parshall flume with a maximum flow of 1,200 m³/h. We supplied an ultrasonic open channel meter with a 4-20 mA HART output. The local integrator connected it to a PLC and the provincial environment department approved the daily flow reports.
How to Specify an Open Channel Flow Meter or Sewer Logger
Send us the channel type, maximum level, flow range, pipe size, power supply, and output needed. For a sewer logger also send the manhole depth, sample interval, and data download method. We return a fixed quote with a clear datasheet, not a generic brochure.
You can reach Silver Automation Instruments at Tel +86-25-68650347 or WhatsApp +86-25-52155837. For WeChat use +86 15365082610. We respond during Asia business hours and can schedule a call for your time zone.
FAQ
Can Silver Instruments replace an ADS open channel flow meter?
Yes. We supply ultrasonic and pressure based open channel flow meters that match standard flume and weir installations. You keep the existing flume and replace the sensor and transmitter.
What signals do your sewer level loggers support?
Standard options are 4-20 mA HART, RS485 Modbus RTU, Bluetooth, and USB. SDI-12 is available on request for environmental monitoring stations.
Which sensor works best for raw wastewater with grease and solids?
A non-contact ultrasonic sensor works best for grease and solids. If foam or turbulence is constant use a submersible pressure sensor with a sealed diaphragm and a stilling well.
Can the logger run on battery inside a manhole?
Yes. The internal lithium battery runs up to two years at a 15 minute sample interval. We can add a small solar panel for longer logging or frequent data upload.
Do you calibrate the open channel flow meter before shipping?
Yes. We program the flume type, dimensions, units, and output range at the factory. You only need to mount the sensor and connect the cables.