Piezoresistive level probe CS-26/RS/U

for fuelanalogdigital output

The CS-26 Fuel level probe is used to measure fuel level in the tanks of motor vehicles, workingmachines and locomotives. The probes have been officially approved by the Ministry of Transport. Structure and Operation The measurement of fuel level with the CS-26 probe is performed with the use of a simple relation between the height of liquid column and the produced hydrostatic pressure. The probe is composed of two parts: the sensing element, placed inside a steel rod, and the electronic element, located inside aluminum housing which can be sealed. The measuring element is a piezoresistive sensor, separated from the medium by a separating membrane. Pressure measuring is performed at the membrane of the submerged probe (5 mm above tank bottom). Depending on the type of tank (pressurized or non-pressurized tank), pressure measuring is related either to atmospheric pressure or pressure inside the tank. Assembly and Usage The CS-26 probe is mounted to the tank cover. A detailed description of assembly is presented in Technical Documentation. The probe is designed to be connected to the following recording devices: - analog input data recorder – current or voltage (current or voltage analog output probe). - recorder or PC computer equipped with a serial RS-232C port (digital output probe).