Flush Mount Pressure Transmitters – SmartLine ST700

Smartline ST700 Flush Mount Pressure Transmitter for direct insertion in processes with the use of a 1” sleeve, welded into the process line. It is primarily used for pressure measurement in the head box of pulp and paper plants.

The Flush Mount Pressure Transmitter, is available in ranges from 0-1 to 0-100 psig and can be installed in a variety of hazardous locations. The flush mounting capability eliminates the possibility of clogging while the insertion design makes the transmitter change out rapid and trouble-free.

  • The cost-effective transmitter provides:
  • Reference accuracy = 0.065%
  • 100 ms response time
  • Stability = +/-0.025% per year

Design / Installation

Flush-mount (insertion) design: installed via a 1″ sleeve welded into the process line.

Eliminates clogging risk because the diaphragm is flush with the process wall.

Allows rapid, trouble-free transmitter replacement.

Performance

Reference accuracy: 0.065% of span.

Process Solutions

Response time: ~100 ms.

Stability: ±0.025% per year.

Rangeability (turndown): up to 100:1.

Sensor / Compensation

High-performance piezoresistive sensor.

Automatic temperature compensation.

Safety & Diagnostics

Dual-seal (integral) design conforming to ANSI/NFPA 70202 and ISA 12.27.0.

Built-in diagnostics to predict failures and reduce downtime.

Overpressure protection.

SIL 2 / SIL 3 capable (functional safety).

Output / Communication

4–20 mA analog.

Digital protocols: HART, FOUNDATION™ Fieldbus, and Honeywell’s Digitally Enhanced (DE).

External configuration: zero, span, and other settings can be adjusted externally.

Mechanical / Materials

Modular design: field-replaceable electronics, meter-body, and display.

Alphanumeric display.

Dualseal materials and process head materials: 316L stainless steel (and optionally other alloys).

Designed for hazardous locations.

Environmental / Reliability

Overpressure rating / protection ensures robustness.

Long-term reliability: modular parts and stable sensor reduce maintenance.

Tested for communication and system integration (e.g. Experion PKS compatibility).

Features

  • Especially suited for pulp and paper industry, e.g., in the head box, where clogging is a concern.
  • Suitable for applications with hazardous environments due to its rugged design.
  • Modular design simplifies maintenance and spare-part management.
  • SmartLine family supports advanced diagnostics to help reduce unplanned shutdowns.