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FlowMaid - Small Open Channel Flow Meter
FlowMaid is a small open channel flow meter, which uses any level sensor to calculate flow from on a selection of 11 flow formulas. Each second, it records level, flow, volume and discrete events. Years of data can be recorded before filling its memory. Data can be downloaded through a USB key, WiFi, Internet or cellular modem. It automatically generates CSV reports of SSO events. The only requirement is to enter the level of the overflow pipe, its diameter, material, and angle. Every event shows start and end time, duration, average flow and volume lost, with daily totals. The relay outputs can be remotely activated or based on events such as high levels or extreme flow.
For an optimum operation time on batteries, the relay output can be used to interrupt the power to the level sensor or other accessories like a cellular modem. Typical battery operation time is 2 years with the lithium battery pack (see picture below), 6 months with a 15-amp rechargeable battery and 2 months with a 5-amp battery.
The user can use one of the following formulas (pictures are in same order): Manning, Manning for open channel, California pipe, Rectangular weir with end contractions, Rectangular weir without end contractions, V-notch (or triangular) weir and Trapezoidal (or Cipolletti) weir or use a standard or polynomial flow formula or a lookup table.
- Instantaneous readout of flow and level
- Available with a Plug and Play pressure sensor kit with fast setup.
- Easy installation
- High levels of accuracy in most condition
- Level and flow history on the Web
- Cellular Wireless or Non-Wireless models available
- Access your level and flow data from the internet 24/7
- Economical, compact solution for level and flow monitoring
- 10 years data storage capacity
- Dynamic logging intervals ensures data is collected as conditions change
- Disconnectable sensor for quick and easy field replacement
- Less Maintenance and Troubleshooting
- On-site sensor operation verification prior to leaving the site
- Information Program
- Billing / Custody Transfer
- Level and flow Studies
- Real time flow analysis
- Low and high level and flow warning systema
- Manning
- Manning for open channel
- California pipe
- Rectangular weir with end contractions
- Rectangular weir without end contractions
- V-notch (or triangular) weir
- Trapezoidal (or Cipolletti) weir
- Standard or polynomial flow formula
- Lookup table
