PR9268/302-000 EPRO / Honeywell Bearing Vibration Velocity Sensor

Model Interpretation

PR9268: EPRO Piezoelectric Absolute Vibration (Piston Vibration) Sensor Series

302:

30 = Sensitivity 20 mV/mm/s

2 = Outlet Type, Standard Configuration of Housing

000: No special customization, standard version Working principle

Piezoelectric + built-in amplification circuit, measures the absolute vibration (vibration velocity) of the bearing housing.

No preamplifier is required. It directly outputs a 4-20mA standard signal, compatible with TSI systems and DCS.

Core technical parameters

Measured physical quantity: Vibration velocity

Standard sensitivity: 20 mV/mm/s

Frequency response: 10Hz - 1kHz

Range: 0 - 50 mm/s (common configuration range)

Output signal: 4 - 20mA active output

Power supply: 18 - 30VDC (typical 24VDC)

Installation method: Base thread fixation / Magnetic suction optional

Operating temperature: -30℃ ～ +85℃

Protection level: IP67

Cable: Built-in oil-resistant shielded cable, strong anti-interference

Application scope

Specifically used for: Fans, pumps, gearboxes, compressors, small steam turbines, bearing pad vibration monitoring

And eddy current probes (for measuring shaft vibration):

PR6423/6424 + CON021: Measuring shaft vibration and axial displacement

PR9268/302-000: Measuring bearing seat vibration

Commonly used matching combinations

Vibration sensor: PR9268/302-000

Monitoring card: MMS3120/022-000

Communication gateway: MMS6823R

Back-end: DCS receives 4 - 20mA signals

Installation points

Install vertically / horizontally on the bearing housing

Cables should be away from power cables and frequency converter lines

Single-ended shield layer grounded inside the cabinet to avoid circulating interference