The 3B18 is a wideband (20 kHz) single-channel signal conditioning module that interfaces, amplifies, and filters signals from balanced 4-arm full-bridge strain-gage bridges. The module provides simultaneous precision voltage and current outputs. The module circuitry can withstand 130v rms at the input screw- terminals. All 3B18 series modules are mix-and-match and Hot Swappable.
The 3B18 is a wide‑band (20 kHz) single‑channel signal‑conditioning module that interfaces, amplifies, and filters signals from balanced 4‑arm full‑bridge strain‑gage bridges. It provides simultaneous precision voltage (0‑+10 V) and current (4‑20 mA) outputs, with user‑selectable bandwidth between 20 kHz and 100 Hz and input protection up to 130 V rms.
The module is hot‑swappable, mix‑and‑match, and can be calibrated via front‑panel zero and span adjustments. Various models (3B18‑00, 3B18‑01, 3B18‑02, 3B18‑Custom) support different input ranges, and optional AC1310 ranging cards allow custom scaling. Mechanical dimensions are 3.15" × 3.395" × 0.775" and it operates over –28 °C to +85 °C.
| Bandwidth | 20 kHz (user‑selectable to 100 Hz) |
|---|---|
| Input Resistance | 100 MΩ |
| Input Bias Current | +25 nA |
| Input Protection Voltage | 130 V rms continuous |
| Output Rise Time | 24 µs (10 %‑90 %) |
| Operating Temperature Range | -28 °C to +85 °C |
| Mechanical Dimensions | 3.15" × 3.395" × 0.775" (80 mm × 86.2 mm × 19.7 mm) |
The module can withstand up to 130 V rms continuous at the input terminals.
It provides simultaneous precision voltage output (0 to +10 V) and current output (4 to 20 mA).
Bandwidth is user‑selectable between 20 kHz and 100 Hz via front‑panel switches and optional AC1310 ranging card.