Next generation high resolution level monitoring
LIDoTT® is a next generation water level sensor. It integrates ultrasonic level, pressure depth and temperature sensors into one compact device. LIDoTT® delivers high-quality data throughout normal dry-weather operating and either wet-weather or blockage induced surcharge conditions.
LIDoTT® is a unique, UK and Worldwide, patent-pending design. On rising and falling water levels, LIDoTT® seamlessly transitions from ultrasonic level measurement to pressure depth measurement and back again – delivering continuous data.
As a water level sensor, LIDoTT® is cost efficient and therefore ideal for widespread deployment. It can be positioned in sewer networks, in domestic sewer manholes and throughout other water courses.
LIDoTT® is simple to install and ultra-low maintenance by design. It requires no external atmospheric breather for its pressure-sensor.
The enclosure is moulded from a carefully selected, resilient, naturally self-cleaning plastic polymer and is submersible. LIDoTT® is safe to use in all environments being
ATEX and IECEx certified Zone 0.
When the sewer network is stressed during storm weather events or by blockages, the LIDoTT® water level sensor automatically switches sensor mode from ultrasonic (level) to pressure (depth) as the liquid level rises, seamlessly delivering high-quality network management data. This transition is transparent to the external datalogging device which needs only a single recording channel.
Ultrasonic level sensor
The LIDoTT® sensor reliably detects subtle changes in “normal” operating conditions – accurately delivering, for example, small silt-induced variations in Depth of flow.
“In Air” Temperature sensor
Primarily used to calibrate distance measurement for changes in air density, temperature can optionally be delivered to the datalogger as a measured parameter.
With its 10m H2O operating range, the pressure sensor deals with exceptional Depth measurement. LIDoTT® delivers seamless transition from Level measurement – using its Ultrasonic sensor, to Depth measurement – using its Pressure sensor. The pressure-sensor is activated and measures rising depth before the Ultrasonic sensor blanking distance (dead-band) is reached.
As the liquid level rises, the ultrasonic sensor is in charge. Once the level reaches the bottom of the pressure sensor, pressure reading starts and a calibration sequence begins.
By the time the level enters the ultrasonic dead-band, the calibration sequence is complete and the calibrated pressure sensor takes over, delivering continuous, accurate depth data.
The LIDoTT® Sensor communicates using a number of serial protocols including Modbus and will connect to many compatible data loggers.
ULTRASONIC LEVEL SENSOR
Type: Piezo-ceramic, temperature-compensated
Range: 0.000 – 1.500m
Accuracy: +/- 2mm
Type: High Precision CMOS Temperature device
Type: Isolated Silicon Diaphragm
Accuracy: ±0.2% FS
Operating temperature: -20°C to +60°C.
Connectors: IP68 Mil – Spec.
Dimensions: 200mm(h) x 125mm(d) x 115mm(w)
ATEX Zone 0 certified CML 20ATEX2039X
IECEx Zone 0 certified IECEx CML 20.0019X
II 1 G, Ex ia IIB T4 Ga. Ta= -20°C to +60°C
UK and Worldwide patents pending
We are specialists in the design, manufacture and installation of ultrasonic wastewater flow and level monitoring equipment for the water industry. At Detectronic, we provide a range of wastewater management services to help you. Any of our products and services can be combined to create a package that’s tailored to your business and your end goals.