This document describes an isolated linearized RTD input module that amplifies, protects, filters, and isolates analog input. The module can linearize a wide variety of 2 and 3-wire RTDs and generate an output of 0 to +5V. It is suitable for industrial signal conditioning, isolation, filtering, and linearization applications.
The 5B34 is a single‑channel signal‑conditioning module that amplifies, protects, filters, linearizes and isolates two‑ and three‑wire RTDs, providing a 0‑to‑+5 V output. It offers 1500 V rms isolation, 240 V rms input protection and can be hot‑swapped in a backplane without disrupting system power.
The handbook includes functional block diagrams, pin configurations, mechanical dimensions, environmental limits and detailed electrical specifications such as accuracy, bandwidth and sensor excitation currents. It also notes compliance with hazardous‑area standards (FM, CSA) and EMI/EMC directives.
| Input Protection | 240 V rms maximum |
|---|---|
| Common‑Mode Voltage | 1500 V rms maximum |
| Dimensions | 2.275" × 2.375" × 0.595" (57.8 mm × 59.1 mm × 15.1 mm) |
| Bandwidth | Input 0.1 Hz–10 Hz, Output 100 kHz |
| Sensor Excitation Current | 0.25 mA – 1.0 mA |
Yes, the 5B34 modules are mix‑and‑match and hot‑swappable without disturbing system power.
The module can withstand up to 240 V rms at the input screw‑terminals.
The 5B34 provides continuous isolation of up to 1500 V rms.