EPRO PR9268/201-000 (Electric Speed Vibration Sensor, High Temperature Resistant Type)

PR9268/201-000 is a vertical-mounted, high-temperature-resistant, armored cable vibration speed sensor from the German EPRO (Emerson) PR9268 series. It is used for absolute vibration monitoring of the shells of fans, compressors, pumps, gearboxes, etc., with no external power supply. It is compatible with the MMS3000/MMS6000 systems. 

Model disassembly (PR9268/201-000)

PR9268: EPRO electric speed sensor series

20: Vertical installation (20 = vertical, 30 = horizontal)

1: Armored cable 5m (standard length)

-000: HARTING connector, no special options

Core parameters (official manual)

Type: Electric (speed) sensor, self-powered without source

Sensitivity: 28.5 mV/(mm/s) ±5% @ 80Hz

Frequency response: 4Hz - 1000Hz (±3dB)

Amplitude range: 0 - 3mm (peak - peak)

Operating temperature: -20℃ - +200℃ (high-temperature resistant type)

Protection level: IP55

Cable: 5m armored (stainless steel braided), oil-resistant and wear-resistant

Output interface: HARTING connector (-000)

Allowable acceleration: 10g (continuous) / 20g (short-term)

Lateral acceleration: ≤5g

Linearity: <2%

Insulation resistance: >1MΩ

Key features

Passive non-powered: No external power supply required, generates electricity by sensing vibration

High temperature resistance: Maximum +200℃, suitable for boilers / high-temperature fans, etc.

Strong anti-interference: Low impedance output, armored shielding, good EMC performance

Sturdy and durable: Metal enclosure + armored cable, suitable for harsh industrial environments

Typical applications

Power plants: Drawers, supply fans, primary fans, coal mills

Petroleum: Compressors, pumps, gearboxes, steam turbine housings

Metallurgy: Motors, fans, vibrating screens

Cement: Kiln drive, cooling fans

Companion systems

Monitoring system: MMS3000 / MMS6000

Preamplifier: None (passive sensor directly connected to the system)

Installation method: Vertically fixed at the rigid part of the equipment shell

Model comparison (commonly used)

PR9268/201-000: Vertical, 5m armored, 200℃, HARTING

PR9268/301-000: Horizontal, 5m armored, 200℃, HARTING

PR9268/202-000: Vertical, 10m armored, 200℃, HARTING