Erbessd Instruments PHANTOM Wireless Condition Monitoring

Machine health monitoring that runs while the plant runs

ERBESSD INSTRUMENTS has spent more than four decades building vibration analysis hardware and software, and PHANTOM is its wireless condition monitoring line. Battery-powered sensors mount to the asset, measure it while it runs, and transmit over Bluetooth BLE 5.0 to a gateway, as often as once a minute, or once a day, on whatever interval the machine warrants.

Triaxial vibration is where the line starts, because vibration catches the largest number of mechanical faults earliest: imbalance, misalignment, bearing wear, looseness and resonance all show in the spectrum well before they show anywhere else. One gateway handles up to 250 sensors and holds 10,000 recordings on board, so a dropped network connection costs you latency and nothing more. Erbessd is ISO 9001 certified, with facilities in Mexico, the United States, Canada, England and India.

PHANTOM Gen 4 wireless triaxial vibration sensor

Data sheets:

• PHANTOM Gen 4 datasheet
• ATEX certification
• IECEx certification

The Gen 4 measures vibration on all three axes and returns waveform, FFT spectrum and RMS velocity. It threads onto a standard 1/4-28 UNF stud or magnet base, weighs 185 g at 47 x 33 mm, and carries an IP69 rating in an ABS and stainless housing rated from -40 °C to 80 °C.

Two versions cover opposite problems. The high-range EPH-V83 reads 0 Hz to 8 kHz across ±15 / ±30 / ±60 g, for assets with strong broadband vibration. The high-sensitivity EPH-V82 reads 0 Hz to 4 kHz across ±4 / ±8 / ±16 g at 500 mV/g, for slow or quiet machines where the signal you're after is small. Which one goes on the machine is a conversation worth having before the order, and it is one we have with you.

Sensing resolution is 460 µg on both, with a spectral noise floor from 20 µg/√Hz. That figure decides whether an early bearing defect shows up in the spectrum or sits underneath the sensor's own background — which matters more than a headline bandwidth number.

The Gen 4 holds ATEX and IECEx certification for gas and dust atmospheres, so it can go on assets in classified areas. One CR2477 lithium cell is rated for 65,000 measurements. The sensor drops to 6-9 µA in standby when no gateway is in range, and wakes on its own to report when vibration crosses the threshold you set.

• Triaxial vibration, 0 Hz to 8 kHz
• 460 µg sensing resolution
• IP69 · ATEX and IECEx certified
• 65,000 measurements per battery
• Bluetooth BLE 5.0, 100 m line of sight
• Reports as often as every minute