STS VL2000 Open-Face Wastewater Level Transmitter

Clog-resistant open-face submersible level transmitter for sewage lift stations and wastewater. STS lists 0–100 psi ranges, accuracy to ±0.1% / 0.25% FS, stainless steel or titanium construction, −20 to +80°C operating temperature and 4–20 mA signal. Manufacturer lists CE and FM, with model-specific approvals subject to the actual datasheet.
Model specifications and official evidence
Original STS VL2000 product page, datasheet and published approvals.
Certification note: CE, FM/FM-C, ATEX and IECEx are separate standards. Neither the manufacturer photo nor the general product description proves an exact hazardous-area installation approval; check the ordered nameplate and current certificate annex.
VL2000 open-face wastewater service
Open-face design is selected to reduce sludge accumulation in sewage, but the installed probe still needs compatible material, a stable submerged reference elevation, correct suspension and a retrieval/cleaning plan. Its 0–100 psi family range and 0.1/0.25% FS accuracy options require a specific calibrated span; dissolved solids and density affect pressure-to-level conversion. Match the optional SW2100 anchor only after checking the VL2000 mechanical fit and actual system certification.