EPRO Shaft Vibration Signal Converter | Emerson PR9350/02-S3

Product Description

Overview

The EPRO PR9350/02-S3 is a proximity probe driver (oscillator/demodulator) from Emerson’s AMS / EPRO PR9350 series. It interfaces with eddy current displacement sensors like the PR6422 and PR6423 series, converting raw probe signals into standardized voltage outputs representing shaft vibration, axial position, or eccentricity.

The S3 variant features a special configuration, offering customized output scaling and installation options, making it ideal for tailored turbomachinery monitoring setups. It is widely used in steam turbines, gas turbines, compressors, pumps, and gearboxes. Moreover, its API 670 compliance guarantees reliable operation in critical machinery protection systems.

Technical Specifications

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

• Model Number: PR9350/02-S3

• Manufacturer: Emerson / EPRO

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

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

• Input: Probe signal from PR642x series

• Output Signal: Standardized voltage (–2 V to –18 V DC proportional to gap)

• Scale Factor: 8 V/mm (203.2 mV/mil) ±5% (S3 variant may include adjusted scaling)

• 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

• Compliance: API 670 compliant, CE marked

• Product Origin: Germany

• Weight: 400 g

FAQ

Q1: Which probes are compatible with PR9350/02-S3?
A1: Compatible with PR6422 and PR6423 eddy current displacement probes.

Q2: What does the “S3” variant mean?
A2: It indicates special configuration for customized output scaling or installation requirements.

Q3: Is this module API 670 compliant?
A3: Yes, it meets API 670 standards for turbomachinery protection.

Q4: How is the PR9350/02-S3 installed?
A4: The module can be mounted on DIN rails or installed in industrial racks and cabinets.

Q5: Can it operate in harsh industrial environments?
A5: Yes, its design ensures reliable operation under demanding conditions.