STS ATM.1ST/N19 Slim Precision Level Transmitter
Precision 19 mm-class submersible level transmitter with nominal 1–250 mH₂O ranges, accuracy options to ±0.05% FS, stainless steel housing, POM nose cone and operating temperature −5 to +80°C. Voltage and 4–20 mA options. This ordinary ATM.1ST/N19 family does not automatically inherit ATM.1ST/N/Ex hazardous-area approval.
Model documentation and certification
Original STS ATM.1ST/N19 model page, datasheet and available certificates →
Engineering verification: These are manufacturer family-level facts, not an exhaustive enumeration of mechanical and electrical order codes. A complete system safety rating requires the ordered nameplate and corresponding certificate schedule; no blanket ATEX/IECEx approval is asserted.
ATM.1ST/N19 slim probe selection
This nominal 19 mm-class probe can be attractive in small wells, but actual fit should be checked at the connector, tip, suspension and cable—not just at the pressure cell. Select the 1–250 mH₂O family option that covers maximum head with suitable error margin and evaluate the ±0.05% FS option at typical water levels. A POM nose cone, stainless housing and electrical output variants require compatibility checks for water chemistry and host acquisition. Ambient/process temperature and gauge vent routing determine long-term deployment suitability. The maker calls the image illustrative; do not transfer /N/Ex approval to standard /N19.