Eno Scientific WS 131 Flow Meter
Features
- Flow meter housings are available in 5 sizes
- Data can be displayed and logged by the Well Sounder 2010 PRO
- Includes the total flow, flow rate and recovery rate functions
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The Eno Scientific WS 131 features a simple design consisting of a PVC housing and an electronic sensor module that easily attaches to the housing using a hand-tightened ring nut. Once the sensor is installed, it transmits electrical pulses that are generated as water moves past the paddle wheel. The amount of water volume that passes through the pipe can be interpreted by an Eno Scientific water level meter like the Well Sounder 2010 Pro. During inactivity, the sensor can be removed and replaced with an inexpensive plug with the same kind of hand-tightened ring nut concept.
Design
Flow meter housings are available in various sizes. The 1", 1.5" and 2" housings are in-line tees made with Type 1 PVC with sockets for schedule 40 PVC pipes, and compatible with common PVC piping and adhesives. The 3" and 4" housings are saddle tees made of Type 1 PVC which clamps onto schedule 40 PCV pipes. The paddle wheel is made of a tough polyethylene material and is the only object subject to wear in the entire system. In the case of highly abrasive water flow, the paddle wheel may experience wear with time but is easily replaced without tools.
Mechanics
The electronic flow sensor operates off a 5-24 VDC power supply and provides an output voltage on the signal line, which switches between Vin and ground as the paddle wheel turns. Data collection is configurable by either plugging a ready-to-plug cable into the Well Sounder 2010 Pro, or with three-wire leads for connection to other data logging devices. An accessory splitter is necessary for the Well Sounder to monitor and log data from both the flow meter and the probe.
- Materials
- Housings: Type 1 PVC
- Paddle Wheel: HDPE
- O-Ring: Buna N
- Axle: Tungsten Carbide
- Plumbing & Physical
- Pipe Size: Schedule 40 PVC
- Test Pressure: 240 psi
- Temperature: 32 – 140° F (0 – 60° C)
- Dimensions
- 1" Housing: 5.75 x 4.5 x 2.4″
- 1.5" Housing: 6.25 x 5.25 x 2.4″
- 2" Housing: 7.11 x 5.75 x 3″
- 3" Housing: 5.0 x 5.5 x 6.5″
- 4" Housing: 5.0 x 6.5 x 7.5″
- Clearance for Sensor Removal: 3.5”
- Electrical
- Power: 5 – 24V at 500 uA max
- Output Signal: Pull-to-ground (+V – 0V)
- Pulse Width: ~5mS
- Frequency: 0.3 – 200 Hz
- (1) Flow meter
In The News
Climate Change and Microplastics: Monitoring Lake Champlain
Most people go to Lake Champlain for its exceptional views and thrilling boating, but it’s also home to a wide variety of interesting aquatic research projects. From studying microplastics to thermal dynamics of the lake, Timothy Mihuc, director of the Lake Champlain Research Institute (LCRI) at the State University of New York at Plattsburgh (SUNY Plattsburgh), has spent his career studying aquatic ecosystems. 
 
 As an aquatic biologist, he’s the main investigator on Lake Champlain’s research studies while also managing their grants, employees, and their hands-on buoy work. 
 
 Over the years, LCRI has received a number of environmental grants that aid in its monitoring research.
Read MoreCurrent Monitoring after the Francis Scott Key Bridge Collapse
On March 26th, according to The Baltimore Sun , a 984-foot, 112,000-ton Dali lost propulsion and collided with a support column of the Francis Scott Key Bridge, collapsing the structure. Soon after the event, search and rescue, salvage crews, and other emergency responders were mobilized after the collision. 
 
As salvage efforts progressed in early April, NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS) responded to a request for real-time tidal currents data and deployed a current monitoring buoy—CURBY (Currents Real-time BuoY)—into the Patapsco River north of the Francis Scott Key Bridge.
Read MoreSoundscapes of the Solar Eclipse: Citizen Science Supporting National Research
On April 8, 2024, millions of people around the world had their eyes glued to the sky to witness a historic cosmic event. The total solar eclipse captured the headlines and the minds of many who became eager to gaze at the heavens as the sky went dark for a few minutes. However, not everyone used their sense of sight during the eclipse, some were listening to the sounds of the natural world around them as the light faded from above. 
 
 The Eclipse Soundscape Project is a NASA-funded citizen science project that focuses on studying how the annular solar eclipse on October 14, 2023, and the April 8, 2024 total solar eclipse impacted life on Earth. 
 
 The project revisits an initiative from the 1930s that showed animals and insects are affected by solar eclipses.
Read More