Emerson PR9351/00 | Turbomachinery Monitoring Signal Converter

Product Description

Overview

The EPRO PR9351/00 is a proximity probe driver (oscillator/demodulator) from Emerson’s AMS / EPRO sensor family, specifically engineered to interface with eddy current displacement sensors such as the PR6422 and PR6423 series. It converts raw probe signals into standardized voltage outputs, accurately representing shaft vibration, position, and eccentricity.

Designed for turbomachinery applications, this module ensures highly reliable signal conditioning and seamless integration with monitoring platforms including VM600 and AMS 6500. Moreover, its API 670 compliance guarantees suitability for critical machinery protection systems.

Technical Specifications

• Product Type: Proximity Probe Driver (Oscillator/Demodulator)

• Model Number: PR9351/00

• Manufacturer: Emerson / EPRO

• Compatible Probes: PR6422, PR6423 (8 mm, 5 mm, etc.)

• Measurement Principle: Eddy current displacement (non-contact)

• Input: Probe signal from PR642x series

• Output Signal: Standardized voltage, typically –2 V to –18 V DC proportional to gap

• Scale Factor: 8 V/mm (203.2 mV/mil) ±5%

• Linear Measurement Range: 2 mm (80 mils) typical

• Deviation from Best Fit Line (DSL): ±0.025 mm (±1 mil)

• Power Supply: 24 V DC nominal (18–30 V DC), max. 50 mA

• Frequency Response: Up to 10 kHz

• Operating Temperature Range: –25 °C to +85 °C

• Storage Temperature Range: –40 °C to +100 °C

• Protection Class: IP20 (module housing)

• Mounting: DIN rail or rack installation

• Applications: Shaft vibration, axial position, eccentricity monitoring

• Compliance: API 670 compliant, CE marked

FAQ

Q1: Which probes are compatible with the PR9351/00 module?
A1: The module works with PR6422 and PR6423 eddy current probes of various diameters.

Q2: What type of output does this driver provide?
A2: It provides a standardized voltage signal proportional to the probe’s measured gap.

Q3: Can it operate in harsh industrial environments?
A3: Yes, it features robust construction and reliable operation in industrial conditions.

Q4: What monitoring systems is it compatible with?
A4: It integrates seamlessly with Emerson VM600, AMS 6500, and other condition monitoring systems.

Q5: Is this module API 670 compliant?
A5: Yes, it meets API 670 standards for turbomachinery protection.