Siemens SITRANS LH100 Hydrostatic Level Transmitter (7MF1572-1HA10)
The Siemens 7MF1572-1HA10 is an industrial-grade, submersible hydrostatic level probe from the high-accuracy SITRANS LH100 series. Engineered to measure hydrostatic liquid levels with exceptional stability, this pressure transmitter converts the pressure exerted by a liquid column directly into a standard 4 to 20 mA loop-powered output. Housed in a slim, corrosion-resistant 316L stainless steel enclosure, it is designed to be lowered directly to the bottom of deep wells, storage tanks, and reservoirs, providing highly accurate, continuous level monitoring even under demanding environmental conditions.
Key Features
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Submersible Hydrostatic Measurement: Utilizes a high-precision ceramic sensor diaphragm to measure the hydrostatic pressure of the surrounding liquid, translating it directly into accurate depth readouts.
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Corrosion-Resistant Housing: Crafted entirely from premium 316L stainless steel (1.4404) with a slim 23.4mm diameter, allowing it to fit into narrow boreholes, stilling wells, and pipes.
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Integrated Venting System: Outfitted with a heavy-duty submersible cable containing an internal atmospheric ventilation tube to automatically compensate for barometric pressure variations.
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Robust Ceramic Sensor Diaphragm: Features a resilient piezoresistive ceramic cell that delivers high overload resistance and immunity to harsh chemical or abrasive particulate wear.
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High Ingress Protection: Rated at IP68 for permanent submersion down to its maximum rated cable depth without fluid ingress or signal degradation.
Technical Specifications
| Feature | Specification |
| Model / Reference | 7MF1572-1HA10 |
| Brand / Family | Siemens / SITRANS LH100 |
| Product Type | Hydrostatic Level Transmitter (Submersible Probe) |
| Output Signal | 4 to 20 mA (2-Wire Loop Powered) |
| Measuring Range | 0 to 10 mH2O (Standard Water Column) |
| Cable Length | 20 meters (PE / PUR Shielded Cable with Vent Tube) |
| Housing Material | Stainless Steel 316L (1.4404) |
| Sensor Diaphragm | Ceramic ($Al_2O_3$, 96%) |
| Accuracy | $le$ 0.3% of full scale value (Typical) |
| Ingress Protection | IP68 |
| Certifications | CE, EAC, UKCA, Safe for drinking water applications |
Applications
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Water Supply & Boreholes: Monitoring water levels in deep municipal wells, groundwater tables, and drinking water reservoirs.
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Wastewater & Rainwater Management: Tracking levels in storm water retention basins, open channels, and wastewater lift stations.
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Industrial Tank Gauging: Continuous level transmitter operations within unpressurized chemical storage tanks and process water reservoirs.
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Environmental & River Monitoring: Providing reliable level diagnostics for rivers, lakes, flood defense basins, and open channels.
