B09A54T

The B09A54T is an industrial-grade uniaxial IEPE accelerometer with a built-in temperature sensor, so one unit and one cable deliver both vibration and temperature from each monitoring point. Built on a piezoelectric ceramic shear sensing element with a wide-bandwidth response, it has 500 mV/g sensitivity and a ±10 g range and is the high-sensitivity member of the pair, with 500 mV/g and a response down to 0.5 Hz for slow-turning machinery and low-level vibration. Typical uses include wind-turbine main bearings and tower monitoring, slow-speed rail and heavy-machinery drivetrains, large fans, mills and other low-rpm rotating equipment.

High-grade piezoelectric ceramics deliver long-term output stability. The two-wire IEPE circuit takes constant-current excitation and returns a low-impedance voltage signal on the same pair, while a double-shielded construction isolates the signal ground from the housing (≥ 10⁸ Ω) to keep ground loops out of long plant cable runs. The laser-welded HEX 22 × 52.1 mm stainless-steel housing is sealed to IP68 for corrosion resistance, with a MIL-C-5015 3-pin connector and an M5 / M6 stud mount.

Vibration and temperature, one sensor

A built-in temperature sensor outputs 10 mV/°C (500 mV at 0 °C, ±1 °C) over −40 to +120 °C on the third connector pin, so bearing and gearbox temperature trends ride alongside the vibration channel with no second sensor or cable.

Isolated industrial build

Double-shielded construction isolates the signal ground from the housing (≥ 10⁸ Ω), and the laser-welded HEX 22 × 52.1 mm stainless-steel housing is sealed to IP68 and rated to 400 g rms vibration and 1,000 g pk shock, for years of service on turbines, rail vehicles and heavy machinery.

Two-wire IEPE electronics

Constant-current excitation (2–20 mA) and low-impedance voltage output on a single pair, with 10–14 V bias. Spectral noise of 0.48 µg/√Hz at 100 Hz and 0.00002 g rms broadband resolution, with a ±3 dB response of 0.1 – 10k Hz and resonance ≥ 27 kHz.

Key specifications