Description
Monitor flow rate and quality online
Monitor multiple flows with one device? Yes, you can - one UNIO FLOW can process up to 5 notch weirs. Sensors for temperature, conductivity, pH value, oxygen content, turbidity and UV permeability are also available, even in battery mode.
Quick commissioning thanks to standardized notch weir panels
Select the appropriate standardized notch weir or weir box for your application and install the measurement yourself if necessary. No referencing or adjustment is required - set up and read the flow rate - online!
Adaptable to different geometries
Your notch weir or flow cross-section is already in place – no problem. The UNIO FLOW can calculate many shapes of flow cross-sections – you don't need to know any formulas. Specially developed algorithms guarantee a stable measurement signal.
Flexible power supply
To adapt to the desired signal extent and the interval of measurement and transmission, solar systems with online charge level indicator and mains-powered versions are available in addition to the purely battery-powered or rechargeable battery-powered variants.
Online measurement data access
Your measurement data is transmitted via cellular networks and can be viewed online at any time via the web platform on a PC, tablet or smartphone. In addition the platform ensures data storage, logging and remote configuration. No additional software is required.
Alerting and data forwarding
Monitor flow rate and water quality using treshhold values and be alerted via high-priority SMS or email. With our OPC-UA & REST-API interfaces, you can forward pre-processed data to your third-party systems (SCADA, websites, ERP, etc.).
| BASIC version | PRO version | EXTREME version | |
|---|---|---|---|
| Water level / flow measurement | Up to 4 measuring notch weirs or profiles, water level measurement via ultrasonic sensor | Up to 5 measuring notch weirs or profiles Water level measurement via precision level sensors (PT+) or radar sensors | |
| Housing and protection class | Plastic housing 130x250x78mm, IP66/IP68 Optional protective housing made of plastic or stainless steel |
||
| Power supply | Battery 7.2V/94Wh, or dual battery system 12V/84Wh + 3.75V/51Wh, optional solar panel 30W | Battery 7.2V/94Wh, or dual battery system 12V/144Wh + 3.75V/51Wh, solar panel 30W | Dual battery system up to 12V/624Wh + 3.75V/51Wh, solar panel 100W or mains supply |
| Data transmission | Cellular radio 2G/M1/NB1, integrated SIM chip, Bluetooth Low Energy 5.0 | ||
| Interfaces | 4x universal input digital/analog, 1x RS232, 1x RS485, 1x PT100/1000Optional: 1x RS485 galvanically isolated, 1x SDI-12 | ||
| Internal sensors | Input voltage, SOC (state of charge), battery life in days, mobile network strength, humidity and temperature in the device | ||
| Sensor supply | 2x switchable 3.3V (max. 180mA), 1x switchable 5..24V (max. 1.5W), 1x switchable battery voltage 12V/2.5A (EXTREME version only) | ||
| Interfaces | RGB LED, magnetic switch, 1.5" full color display (optional) | ||
| Temperature measurement | Common measurement, accuracy: ±2.0°C | For each measuring weir, accuracy: ±0.1°C | |
| Quality sensors available for | Conductivity, oxygen content, pH value, redox potential, ammonium (NH4-N), nitrate-nitrogen (NO3-N), filterable substances (AFS) | additionally AFS, TS, turbidity, color, TOC, DOC, BOD, COD, NO3-N, NO-3, UV254 | |
* FS = FullScale (set measuring range). e.g: Accuracy 0.1% at FS 10 mWs = 1 cm (valid at 20-25°C).
** depending on which value is greater.
Flow measuring point in a watercourse with a triangular and rectangular notch weir combination. Battery operation for flow and temperature measurement.
Spring shaft with 4 V-notch weirs for separate flow and temperature and combined conductivity measurement.
Seepage system of a dam with redundant flow measurement via ultrasonic and pressure level sensors.
You can now install and setup measuring notch weir applications yourself. The unio FLOW system, including the supplied notch weir panel, is simply installed at a crossing between two water chambers.
Without further referencing or adjustment, the measured flow rate is immediately shown on the optional display of the device and online in the cell.datacenter.
The standardized notch weir panels cover small to large measuring ranges. Customised notch weir shapes and sizes are also available for special applications!
A measuring notch weir creates a backwater (W) through the notch weir plate (1). This water level depends on the geometry of the notch weir orifice and the actual flow rate (Q). The higher the flow rate, the higher the water level (W). This relation is described by the notch weir discharge formula or key curve – this can be used to calculate the flow rate (Q) based on the water level (W).
The water level can be measured via pressure sensors (3) below or via ultrasonic or radar sensors (2) above the water surface.
The unio FLOW system has already stored the key curves for the most common weir and channel geometries – so your measuring applications can be put into operation quickly.
Then get in touch with us directly – we will be happy to advise you!
