The 3B32 isolated process current input module is designed for industrial signal isolation and filtering.
The 3B32 is a single‑channel signal‑conditioning module that interfaces, amplifies and filters a process‑current input while delivering simultaneous precision voltage (‑10 V to +10 V) and current (4‑20 mA) outputs. It features up to +1500 V peak isolation, input protection up to 220 V rms, and can be hot‑swapped in the field.
The handbook includes functional block diagrams, pin‑out descriptions, mechanical dimensions, and a full set of electrical specifications such as input resistance, noise performance, common‑mode rejection, and temperature stability. Various models (‑00, ‑01, ‑02, Custom) allow externally programmable ranges via an optional AC1310 ranging card.
| Input Resistance (Module) | 15 MΩ |
|---|---|
| Input Noise (0.1‑10 Hz) | 0.2 µV rms |
| Output Rise Time (10‑90 %) | 200 ms |
| Common‑Mode Voltage Isolation | +1500 V peak |
| Common‑Mode Rejection (50/60 Hz) | 160 dB |
| Input Protection | Continuous 220 V rms maximum |
| Current Output Protection | 130 V rms continuous |
| Voltage Output Range | -10 V to +10 V |
| Accuracy (Voltage Output) | ±0.1 % of span |
| Stability vs Temperature | ±25 ppm/°C |
| Mechanical Dimensions | 3.15" x 3.395" x 0.775" (80.0 mm x 86.2 mm x 19.7 mm) |
The input resistance of the module is 15 MΩ.
It provides up to +1500 V peak isolation between input and output.
The voltage output accuracy is ±0.1 % of span.