Foxboro SRI990 Electro-Pneumatic Positioner

SRI990 Analog Valve Positioner

The SRI990 is a high-performance analog electro-pneumatic positioner engineered to accurately control pneumatic valve actuators using a 4–20 mA input. Featuring configurable settings via potentiometers and DIP switches, it offers modular expandability, rugged construction, and precise performance across a wide range of industrial applications.

Ideal for:

• Oil and Gas
• Petrochemical/ Chemical
• Power Generation
• Water/ Wastewater
• Pulp and Paper
• Food and Beverage
• Pharmaceutical
• Metals and Mining

Features:

• 2-wire 4-20 mA control signal
• Independent adjustability of zero, span, gain, and damping
• Supports 1:2 or 1:3 split-range control
• Built-in pneumatic amplifier
• Suitable for linear and rotary actuators
• Accepts single or double-acting actuators
• 8mm to 260 mm linear travel range
• 0-95° rotary travel range
• 1.4-6 bar (20-90 psi) supply pressure range
• Compact and lightweight design
• IP65 rated (upgradable to IP66/ NEMA 4X)
• EMC compliant
• ATEX II 2 G Ex ib/ia IIB/IIC T4–T6 Certifications
• Suitable for zone 1 and 2
• Field-adjustments using standard tools

Optional Features:

• 4-20 mA position feedback transmitter
• Inductive or mechanical limit switches
• Gauge manifolds and pneumatic test switches
• Volume booster

Document Downloads:

• SRI990-Data Sheet
• SRI990-User Guide
• SRI990-Tech Sheet