Fuel Level Probe Type CS-27/RS/U Measuring range 0÷800 mm H2O Ministry of Transport Type Approval Certificate No. E20 10R-03 25 17 Function The CS-27 Fuel level probe is used to measure fuel level in the tanks of motor vehicles, working-machines and locomotives. The probes have been officially approved by the Ministry of Transport. Structure and Operation The measurement of fuel level with the CS-27 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 and the electronic element, placed inside a steel rod, and aluminum housing. The steel rod is fixed to an aluminum housing which may 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 nonpressurized tank), pressure measuring is related either to atmospheric pressure or pressure inside the tank. Assembly and Usage The CS-27 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). APLISENS S.A., 03-192 Warszawa, ul. Morelowa 7, tel. 022 814-07-77 fax. 022 814-07-78, www.aplisens.pl, e-mail: [email protected]

Technical Specification Measuring range Pipe length L in tank Maximum overload Basic error Hysteresis, replicability Long-term stability Working temperature range Compensation temperature range Output signal Power supply Power voltage fluctuation error Housing protection degree Temperature fluctuation error 0÷800mm H2O (special ver. 0...200÷2000mm H2O) 800mm (special ver. L=200÷2000mm) < 100kPa < 0.16% < 0.05% < 0.1% for two years -25 ÷ 80°C -25 ÷ 40°C 0 ÷ 10V ; 0 ÷ 5V, 0 ÷ 4.5V, 0 ÷ 2.5V 100 ÷ 3800 bit 12 ÷ 36V for output = 0 ÷ 10V 8 ÷ 36V for output = 0 ÷ 5V 8 ÷ 36V for output = 0 ÷ 4.5V 3.3±0,1V...