Dedicated Water Level Data Loggers
Data Logger Configured with Water Level Sensor


6541-11/C Precision Water Level Recorder

Float-operated instruments can be the most accurate way to monitor the level of a water surface. The 6541-11/C consists of a optical shaft encoder packaged with a 120K RAM Unidata Micrologger. This recorder can achieve an operating accuracy and resolution of 0.2mm over a full scale range of 0 to 65.5 meters. The 500 mm circumference pulley is normally connected to the water surface by a float system. As the water level changes this rotates the input shaft on which is mounted an optical encoder. The encoder is continuously monitored and the instrument tracks any water level changes. These changes update the LCD screen and are recorded by the Micrologger or the unit can be configured as a SDI-12 sensor. Also included on the Micrologger are two analog and one digital channel for inputting other sensors such as water quality or a tipping bucket rain gauge. The Shaft Encoder electronics and Micrologger are housed in a Nema 4 enclosure with a 9 VDC battery pack which will power the instrument for more than 1 year. Specifications