Surveillance of storm water drains

Claire Group’s solutions for the surveillance of storm water drains

Developing equipment specifically designed for the control of storm water drains

The Claire Group range of sewerage system products includes various solutions designed to meet the regulatory criteria for storm water drains. These instruments, developed by Ijinus, range from the traditional rain gauge to the highly specific overflow detector, along with level, velocity and flow sensors and loggers.

Compact and self-powered, these systems can be installed in all types of infrastructure of any size, powered by electricity or not.

Focus on solutions

Overflow logger and sensor

This capacitive overflow sensor is a wired device that measures overflow from the sewerage system into the natural environment. It also logs the number and duration of overflow episodes.

COMPLIANT WITH REGULATIONS

Suitable for the overflow measurement required by law when more than 2,000 inhabitants are connected to the same pumping station or stormwater overflow.
SPECIFIC DIAGNOSIS

Compatible with occasional measurement campaigns for monitoring the sewerage system.
INNOVATIVE TECHNOLOGY GUARANTEES RELIABILITY

CapAir® technology (capacitive measurement with air referential) allowing reliable and unparalleled detection of overflows in wastewater networks in the most difficult conditions.

Our solutions for storm water drain surveillance

Innovative solutions for sanitation network performance

Really simple to set up and install, the RG20 or RG25, paired with a datalogger, can be used equally well in temporary or permanent rainfall monitoring programmes. The rain gauge is connected to a logger which records the local data by radio, or on a remote supervision tool. This ‘tipping bucket’ rain gauge consists of a funnel collector with two calibrated containers designed to prevent the rain from splashing internally or externally, as recommended by the WMO (World Meteorological Organization). The data can be logged either by time stamping the bucket tips, or based on cumulative rainfall, and the device can be programmed to issue alerts.

The wireless LNU is an acoustic imaging level sensor designed to measure water levels in difficult environments. This multi-purpose sensor, recognised for the precision of its measurements, can be coupled with a physical-chemical sensor or used with samplers. An all-in-one, self-powered system, it measures and logs data before transmitting it to a supervision platform. The LNU is simple to install, use and maintain. It can be securely programmed via radio without any physical interaction on the sensor or direct contact with water, making it easy to maintain.

The UB-V sensor is a Doppler sensor that measures the optimal flow velocity. It can precisely measure even very low velocities from a level of 35 mm, even in water with low content of suspended particles. Particularly well-suited to the permanent diagnosis of sewerage systems,the UB-V has a very long working life and is very easy to install.

The VLI sensor is a high-precision, multi-purpose height and velocity sensor. Fitted with a Doppler numerical velocity sensor and coupled with a pressure level sensor, it can measure velocities from a water height of 25 mm, facilitating the operation and monitoring of the sewerage system. This extremely compact device also offers extremely precise measurements. It is a multi-purpose tool that communicates with other sensors via a datalogger, to produce cross-measurements. The ‘Overflow’ technology fitted on the device can verify the relevance of velocity measurements in storm drains to augment the sensor’s autonomy.