3-15PSI Standard Pneumatic Signal Unit

Feature & Principle

This is the traditional industry standard pneumatic analog signal. 3PSI corresponds to 0% measurement value and 15PSI corresponds to 100% full scale. Air pressure changes proportionally with measured variable to drive pneumatic valve positioners and pneumatic indicators.

Specifications

Model: 3-15PSI Type: Pneumatic standard signal range Span: 12PSI Zero point: 3PSI Full scale: 15PSI Medium: Clean dry instrument air Application: Pneumatic transmitter, I/P converter, valve positioner Certification: ISA standard

Components & Diagnostics

I/P converter, pneumatic relay, air filter regulator, signal tubing. Common faults: air leakage, signal drift, blocked tubing, unstable air supply.

Product Brief

3-15PSI pneumatic signal standard, widely matched with control valves and old-style field instruments in chemical and petrochemical plants.