SmartLine STF800 – Flange Mount
SmartLine® ST800 Flange Mount Pressure Transmitters may be installed directly onto a tank flange and are offered with a variety of tank connections.
SmartLine® ST800 Flange Mount Pressure Transmitters may be installed directly onto a tank flange and are offered with a variety of tank connections.
ST800 Flange Mount Pressure Transmitters are ideal for critical applications such as natural gas custody transfer and energy and material balances, where accuracy and stability are of utmost importance. Four ranges of the transmitters are available with the variety range and span.
Directly mounts to a tank flange (no impulse line needed).
Offers flexibility: supports flush and extended diaphragm flange connections.
Uses piezoresistive sensor technology for very stable and accurate level measurements.
Automatic static‑pressure & temperature compensation, which corrects for tank pressure and temperature variations.
Accuracy: up to 0.0375% of span standard, 0.025% optional.
Very long-term stability: up to 0.01% of URL per year (for up to 15 years).
High rangeability: up to 100:1, enabling flexible span selection.
Fast response: as low as 90 ms.
Overpressure protection is built in.
4–20 mA analog output.
Supports HART v7, Honeywell Digitally Enhanced (DE), and FOUNDATION™ Fieldbus.
External zero / span / configuration capability.
Polarity‑insensitive electrical connections for easier & safer wiring.
Comprehensive on‑board diagnostics for device health.
Integral dual-seal design (safety): meets ANSI/NFPA 70‑202 and ISA 12.27.0.
SIL (Functional Safety) capable: SIL 2 / SIL 3 versions.
Optional Plugged Impulse Line Detection (PILD) feature.
Barrier diaphragm materials: 316L stainless steel, Hastelloy C-276, Monel 400.
Process head materials: 316 SS, carbon steel, also Hastelloy / Monel depending on variant.
Gasket ring materials: 316/316L, Monel, Hastelloy, with gasket options PTFE, Viton, graphite.
Fill fluids: Silicone Oil 200, CTFE, NEOBEE M‑20, or Silicone 704.
Enclosure: Powder-coated aluminum (IP66 / IP67), or optional stainless steel.
Multiple local display options (alphanumeric or graphic).
Local buttons (or module) for zero / span / configuration.
Modular design (electronic module, meter body, and display are field-replaceable).
Available with a 15-year warranty (depends on model / region).