This document introduces the features of the 3B30 / 3B31 series modules, including interfaces, amplifiers, filters, etc., which are suitable for industrial signal conditioning, isolation and filtering applications.
The 3B30 and 3B31 are narrow‑bandwidth (3 Hz) single‑channel signal‑conditioning modules that amplify, isolate, filter and protect analog input voltages while providing simultaneous precision voltage (0‑+10 V) and current (4‑20 mA) outputs. They are mix‑and‑match, hot‑swappable plug‑in modules designed for industrial signal conditioning, isolation and filtering.
Key specifications include input ranges from –10 V to +10 V (customizable), output voltage range –10 V to +10 V, output current range 4 mA to 20 mA, accuracy of ±0.1 % at +25 °C, isolation voltage of +1500 V peak, input bandwidth 0.1 Hz–10 Hz and output bandwidth 100 kHz. The modules operate over –25 °C to +85 °C and feature ESD protection and a universal pin‑out.
| Input range (3B30‑00) | -10 V to +10 V |
|---|---|
| Output voltage range | -10 V to +10 V |
| Output current range | 4 mA to 20 mA |
| Accuracy (voltage output) | ±0.1 % (at +25 °C) |
| Isolation voltage | +1500 V peak |
| Operating temperature range | -25 °C to +85 °C |
| Input bandwidth | 0.1 Hz to 10 Hz |
| Output bandwidth | 100 kHz |
The modules provide +1500 V peak isolation between input and output.
Yes, they are mix‑and‑match and hot‑swappable, allowing field replacement under full power without disrupting wiring.
The voltage output accuracy is ±0.1 % at +25 °C.