PR9268/202-100 | Emerson EPRO Electrodynamic Velocity Sensor

PR9268/202-100 is a passive, self-powered electrodynamic seismic velocity transducer from Emerson EPRO for absolute casing vibration measurement on bearing pedestals, turbine casings, pump and fan housings within Turbine Supervisory Instrumentation (TSI) and machinery protection systems. This vertical mount variant is fitted with factory pre-assembled MIL connector and 10-meter stainless steel armored cable, ready for direct field installation without additional cable wiring.

Adopting seismic electromagnetic induction principle, PR9268/202-100 outputs AC voltage proportional to casing vibration velocity and requires no external excitation power. Widely used in power, oil & gas and petrochemical industries, it is commonly combined with PR6426 eddy current probes to realize full monitoring of shaft relative vibration and casing absolute vibration for turbo machinery.

Key Features

• Self-powered passive electrodynamic velocity pickup, no external power supply required
• Vertical mounting configuration for Z-axis absolute casing vibration measurement
• MIL connector + factory pre-installed 10m stainless steel armored shielded cable
• Sensitivity: 17.5 mV/mm/s (±5% @80Hz, 20°C, 100kΩ load)
• Frequency response: 14 Hz ~ 1000 Hz, natural frequency 14Hz ±7%
• Max continuous acceleration 10g; intermittent peak acceleration up to 20g
• Low transverse sensitivity <0.1 at 80Hz, suppress cross-axis measurement interference
• Rugged stainless steel housing, IP55 protection grade, dust and splash resistant
• Sensor operating temperature: -20℃ ~ +100℃; armored cable -40℃ ~ +180℃
• M8×1 mounting stud for direct bolt-on installation on bearing housings
• Amplitude linearity <2%, low long-term drift and excellent repeatability for safety trip interlock
• Compatible with EPRO MMS6000, MMS6100 monitoring racks and Emerson AMS 6500 system
• API 670 compliant for critical rotating machinery protection

Technical Specifications

Model: PR9268/202-100 Brand: EPRO (Emerson) Sensor Type: Electrodynamic seismic velocity transducer (passive self-powered) Mount Orientation: Vertical Z-axis casing vibration Cable Version: -100 = MIL connector with factory 10m armored integrated cable Measurement Principle: Electromagnetic induction, self-generating AC voltage Sensitivity: 17.5 mV/mm/s ±5% Frequency Response: 14 Hz ~ 1000 Hz Natural Frequency: 14 Hz ±7% @ 20°C Max Vibration Amplitude: 500 μm peak-to-peak Amplitude Linearity: <2% Continuous Acceleration: 10g peak Intermittent Acceleration: 20g peak Transverse Acceleration Limit: 2g Transverse Sensitivity: <0.1 @80Hz Sensor Operating Temperature: -20℃ ~ +100℃ Cable Operating Temperature: -40℃ ~ +180℃ Housing Material: Stainless steel Mount Thread: M8×1 mm Protection Grade: IP55 Internal Resistance: 1723Ω ±2% Inductance: ≤90 mH Output Signal: AC voltage proportional to casing vibration velocity Recommended Load: ≥100 kΩ input impedance for monitoring unit Measured Parameter: Absolute bearing housing vibration velocity (mm/s)

Applications

• Power generation: Steam turbine, gas turbine, generator bearing housing vertical absolute vibration monitoring
• Oil & gas: Centrifugal compressors, expanders and large process pump casing vibration protection
• Petrochemical: Critical rotating equipment condition monitoring, vibration alarm and safety trip protection
• Heavy industry: Large fans, blowers and hydro turbine casing vibration measurement
• TSI machinery protection system: Combined with PR6426 eddy current probes to realize complete rotor and casing monitoring

Why Choose PR9268/202-100

EPRO PR9268 series velocity transducers are industry-standard casing vibration sensors for turbo machinery TSI systems. PR9268/202-100 vertical MIL connector variant comes with factory pre-fitted 10m armored cable, saving field cable assembly work and reducing wiring errors on site.

As a passive self-powered transducer, it eliminates measurement failure risks caused by sensor power loss. The sturdy stainless steel housing and armored cable resist abrasion, oil and dust in harsh plant environments. We supply original new PR9268/202-100 velocity sensors with inspection report and factory calibration certificate, global air & sea shipping available. We also accept inquiries for other PR9268 variants with different orientation and cable suffix codes. Contact us for datasheet, dimension drawing and formal quotation.

Embedded SEO Keywords

PR9268/202-100, EPRO PR9268/202-100, Emerson PR9268 velocity sensor, PR9268 electrodynamic seismic pickup, vertical casing vibration sensor, PR9268/202-100 MIL connector 10m cable, turbine bearing housing vibration transducer, PR9268/202-100 original stock, self-powered velocity sensor, EPRO TSI casing vibration sensor

FAQ

Q: What does PR9268/202-100 measure?

A: It measures absolute vertical casing vibration velocity of bearing housings and machine casings for turbo machinery TSI protection.

Q: What do /202 and -100 mean?

A: /202 = vertical mounting with MIL connector configuration; -100 = factory pre-installed 10 meters armored cable, ready for field wiring.

Q: Does PR9268/202-100 require external power supply?

A: No, it is passive self-powered electrodynamic velocity sensor; mechanical vibration generates the AC output signal.

Q: What systems can PR9268/202-100 connect to?

A: Compatible with EPRO MMS6000, MMS6100 series monitors and Emerson AMS 6500 machinery health systems.

Q: What is the difference between PR9268/202-000 and PR9268/202-100?

A: PR9268/202-000: MIL connector, no factory pre-installed cable, field cable assembly required. PR9268/202-100: MIL connector with factory 10m armored integrated cable, plug-and-install.

PR6426/000-010+CON021

Our products are widely used in CNC mechanical metallurgy, petroleum and natural gas, and petrochemical industries,Chemical industry, paper and printing, textile printing and dyeing, machinery, electronic manufacturing, automobile manufacturing,Plastic machinery, electricity, water conservancy, water treatment/environmental protection, municipal engineering, boiler heating, energy, power transmission and distribution.The quoted price is not the actual price. Please contact the shopkeeper before placing the order to confirm the price and delivery time!!!

Recommended other models：

PR6426/010-140+CON021 | Emerson EPRO Eddy Current Probe & Proximitor Assembly
PR6426/010-010+CON021/916-160 | Emerson EPRO Eddy Current Probe & Proximitor Assembly
PR6426/000-010+CON021 | Emerson EPRO Eddy Current Probe & Proximitor Assembly
PR6425/010-130+CON021 EPRO High Temp Eddy Current Sensor Kit |16mm 13m Armored Cable
PR6424/010-141 EPRO Eddy Current Probe | 14.1m Cable Vibration Probe
PR6424/010-120+CON021 EPRO Eddy Current Sensor Kit | 12m Cable Probe & Conditioner

Contact information:+86 15359213550

1. A-B Rockwell
2. FOXBORO
3. TRNEX
4. OVATION Westinghouse
5. SCHNEIDER
6. GE FANUC Fanuc
7. SIEMENS
8. REXROTH INDRAMA
9. ABB
10. HONEYWELL
11. BENTLY NEVADA
12. YOKOGAWA Yokogawa
13. ICS TRIPLEX
14. BACHMANN
15. Emerson
16. EPRO
17. HIMA Black Horse and other imported industrial components!

Related models：

contact information:

Email: changxin2025@gmail.com
Contact phone number: 15359213550