PIE 422PLUS T/C and milliamp Loop Diagnostic Calibrator

PIE 422PLUS T/C and milliamp Loop Diagnostic Calibrator

The PIE 422PLUS is a flagship “Two Calibrators in One” instrument engineered to deliver elite operational performance for characterizing thermal and current stimulus in rigorous industrial audits. By addressing the requirement for surgical accuracy in complex loop troubleshooting, this device effectively reveals signal nuances across 14 thermocouple types (including J, K, T, E, R, S, B, N, G, C, D, L, U, and P) and 0 to 24 mA loops. The metrological architecture of the 422PLUS ensures absolute reliability, providing high-fidelity oversight with patented loop diagnostic technology to identify ground faults and current leakage while simultaneously powering 2-wire transmitters for exhaustive validation of process control loops.

Built for industrial longevity and professional-grade calibration validation, the PIE 422PLUS is a high-trust solution for managing stimulus in heat treating and manufacturing audits, meeting AMS 2750 Field Test Instrument requirements. Its technical sophistication is centered on an internal cold junction thermistor accurate to ±0.05°C and an isothermal mass design, establishing it as a professional-grade metrology asset for certifying system accuracy tests (SAT). Providing the repeatable results and rigorous verification necessary for professional-grade diagnostics, this unit features a backlit display and automatic output stepping, serving as the definitive tool for technicians requiring a robust, multifunction platform for precision T/C and milliamp characterization.

Technical Specifications & Metrological Data

• Signal Fidelity: Dual-function characterization of 14 thermocouple types and 0.000 to 24.000 mA loops.
• Metrological Precision: High-stability cold junction compensation accurate to ±0.05°C (NIST traceable).
• Diagnostic Intelligence: Patented technology for identifying ground faults and loop current leakage.
• Power Intelligence: Integrated 24V supply to power transmitters with a built-in 250 ohm HART resistor.
• Operational Logic: EZ-DIAL and EZ-CHECK functions for rapid 0.1° resolution adjustment and 3-point recall.
• Automation Suit: Programmable automatic stepping (up to 21 steps) with user-selectable soak times.
• Durability Metrics: Protected by a blue rubber boot and rugged switches for harsh field-site deployment.