Absolute Pressure Transmitter – SmartLine STA700
SmartLine® ST700 Absolute Pressure Transmitters are targeted at applications requiring robust performance in vacuum applications.This includes low-pressure measurement in vacuum distillation columns.
SmartLine® ST700 Absolute Pressure Transmitters are targeted at applications requiring robust performance in vacuum applications.This includes low-pressure measurement in vacuum distillation columns.
The ST700 Absolute Pressure Transmitters are available in two variants – In-line and Dual Head – in the following ranges:
STA722/STA725/STA72L/STA72S – 0 to 780 mmHga (0 to 1,040 mbara)
STA740/STA745/STA74L/STA74S – 0 to 500 psia (0 to 35 bara)
STA77L/STA77S – 0 to 3000 psia – (0 to 210 bara)
SmartLine transmitters deliver superior reliability and an unmatched user experience. Discover the value of SmartLine for all your projects
Uses piezoresistive sensor technology with on-chip static pressure and temperature compensation.
High stability and long-term performance.
Standard accuracy: 0.055% of span, optional down to 0.04%.
Long-term stability up to 0.02% of full scale (URL) per year over 10 years.
Fast response time: can be as low as 100 ms.
Rangeability (turndown): 100:1, giving wide flexibility.
Various models:
STA722 / STA72L: 0 to 780 mmHgA (≈ 0–1,040 mbarA)
STA740 / STA74L: 0 to 500 psia (≈ 0–35 barA)
STA77L / STA77S: 0 to 3,000 psia (≈ 0–210 barA)
Integral dual-seal design for safety per ANSI/NFPA 70-202 and ISA 12.27.0.
Modular design: meter body, electronics, and display can be replaced / upgraded separately.
Available extended 4-year warranty.
Supports HART (v7), Honeywell Digitally Enhanced (DE), and FOUNDATION™ Fieldbus.
External zero, span, and configuration adjustment.
Polarity-insensitive electrical connections for easier and safer installation.
Rich on-board diagnostics to monitor device health, performance, and alerts.
Functional-safety capable: SIL 2 / SIL 3 versions.
Alphanumeric LCD display (field‑installable / modular).
Multiple language support, configurable screens, zero/span menu via buttons.
Fully compatible with Honeywell Experion PKS control system.
Hazard-area approvals: some models support ATEX, IECEx, etc.
Ideal for vacuum / low‑pressure applications (e.g., vacuum distillation columns).
Leak-detection use: absolute pressure measurement is independent of atmospheric changes.
Suitable for high-accuracy control loops, data acquisition, and process monitoring.