B12B05

The B12B05 is an ultra-low-noise, high-sensitivity uniaxial IEPE accelerometer designed specifically for low-frequency, low-amplitude measurement. A compact high-sensitivity shear sensing element and a dedicated low-noise ASIC give a high signal-to-noise ratio at low frequencies, and with 10,000 mV/g sensitivity and a ±0.5 g range it is the 10 V/g, ±0.5 g member of the family, with the highest sensitivity for the faintest low-frequency motion. Typical uses include micro-vibration surveys of laboratories, cleanrooms and precision-equipment sites, ground-borne vibration from traffic and construction, and ultra-low-level structural monitoring.

Spectral noise is just 0.1 µg/√Hz at 100 Hz and 0.5 µg/√Hz at 10 Hz, with a ≥ 10 s discharge time constant holding the ±5% response down to 0.7 Hz. The laser-welded HEX 26.1 × 25.6 mm stainless-steel housing is sealed to IP68 with a top M5 connector (10-32 optional) and an M5 stud thread with a 10-32 version available on the base.

Ultra-low noise floor

A dedicated low-noise ASIC and high-sensitivity element give spectral noise of 0.5 / 0.1 / 0.07 µg/√Hz at 10 / 100 / 1000 Hz and 0.000004 g rms broadband resolution, so sub-micro-g motion in buildings, foundations and precision facilities is resolved cleanly.

Built for low frequency

10,000 mV/g output with a ≥ 10 s discharge time constant and a ±5% response from 0.7 Hz, plus 0.5 – 900 Hz at ±10%. IEPE-compatible two-wire interface with 2–20 mA excitation and 8–12 V bias runs into any standard DAQ or monitoring system.

Sealed stainless housing

Laser-welded HEX 26.1 × 25.6 mm stainless-steel housing sealed to IP68, weighing 144 g, rated to 40 g rms vibration and 100 g pk shock and −40 to +85 °C. Top connector with M5 or 10-32 options and a M5 × 4 (10-32 opt.) stud mount at 3.0 N·m.

Key specifications