T/LL140 series fuel level sensor The Model T/LL140 series is a range of highly advanced sensors for measuring the contents of a fuel tank. Their main feature is that they auto-recalibrate when the fuel is at the full level and the sensor’s electronics negate the effects of changes in the fuel’s dielectric constant caused by the use of different fuels or percentage of additives being used. Additionally, the probe has the facility to fit fuel feed and return pipes (max 10mm) within the standard SAE 5 holes flange interface. Another useful facility is that the user can cut the sensor probe to length to suit the tank depth. A low level alarm switches when the fuel drops below a predetermined level (default is 1/8th of the tank), but the alarm point can be optionally specified anywhere between 0-100%. Specification Dimensions: Probe length: Min 200mm, Max 1000mm (Min 8”, Max 40”) Electrical: Supply voltage: System frequency: Accuracy: 12 or 24Vdc nominal 8kHz ±2.0% of immersion depth @ 20ºC Outputs: Resistive: Voltage: PWM: Alarm: Warning Output Load: One from: 10-180Ω, 240-33Ω or 3-180Ω (Emulated resistive output) Selectable: 0-5V, 5-0V or any voltage range in between these limits (ascending or descending) As specified. (Max vout load 15mA) Switch to ground at 1/8 tank depth - max load 100mA. Optionally adjustable between empty and full. 100mA max. Construction: Housing: Sensor tube: Internal insulators: 30% glass filled Nylon 6 Stainless steel 316 PTFE Supply current: Connections: 8mA@12Vdc + output load 500mm long flying leads which can be optionally fitted with any specified receptacle Internal sensor: Wetted seals: Epoxy resin coated FR4 fibre glass PTFE Sealing: Shock: Weight: EMC: IP67 50g 6.3mS 300g (1M long unit) Type approval in accordance with EN ISO 13766:2006 Fluid Types: Fuels compatible with materials of construction Environmental Ratings: Temperature - operating: - storage: Max tank pressure: Vibration: Errors and omissions excepted. Contec GmbH Industrieausrüstungen Wege zur sauberen Lösung