Siemens 707147 Liquid Level Probe, Wobble Stick

Siemens 707147 Wobble Stick is an industrial liquid level sensing probe designed to detect the presence or level of conductive liquids using a flexible electrode rod, commonly used in tanks and process systems to provide reliable level control and alarm signaling. Manufacturer: Siemens Country of manufacture: Germany Part number: 707147 Type: Liquid level probe (wobble stick / flexible electrode type) Function: Liquid level detection for conductive fluids Sensing method: Electrical conductivity via immersed probe Probe design: Flexible stainless steel rod (wobble stick style) Probe length: Approx. 300–400 mm Mounting: Threaded process connection (top-mounted) Thread type: Likely NPT or BSP (exact size to be verified, approx. 1 in typical) Housing: Industrial plastic or polymer head (orange/black) Electrical connection: Terminal block inside housing Operating voltage: Typically low-voltage control circuit (varies by controller used) Output type: Switch signal via external controller/relay Material (probe): Stainless steel Material (housing): Industrial-grade thermoplastic Seal material: Oil- and water-resistant elastomer Temperature range: Typically -10 °C to +80 °C (application dependent) Pressure rating: Suitable for tank applications (low to moderate pressure) Applications: Tank level control, sump monitoring, wastewater systems, industrial liquid handling Compatibility: Used with Siemens level controllers or relay units Installation: Vertical mounting into tank or vessel Sensitivity: Depends on liquid conductivity Key feature: Flexible probe design allows movement (“wobble”) and reliable detection in turbulent conditions Maintenance: Periodic cleaning recommended to prevent buildup affecting conductivity detection