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SKU:PR6423/001-121
PR6423/001-121 Emerson EPRO | 8mm Eddy Current Proximity Sensor
Manufacturer: Emerson
Product No.: PR6423/001-121
Product Type: Eddy Current Sensor
Product Origin: USA
Payment:T/T, Western Union
Weight: 100g
Shipping port: Xiamen
Warranty: 12 months
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Description
Product Overview
The Emerson EPRO PR6423/001-121 is an 8mm non-contact eddy current proximity sensor engineered for critical turbomachinery protection and vibration monitoring. Designed to measure dynamic radial and axial shaft displacement, position, eccentricity, and rotational speed, it is widely deployed on steam, gas, and hydro turbines, as well as heavy industrial compressors, gearboxes, pumps, and fans. Featuring an M10x1 threaded case (35mm length), a 5.0-meter unarmored PTFE cable with open wire ends, and an IP66-rated stainless steel body, the PR6423/001-121 delivers precise, high-reliability measurements in harsh industrial environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Catalog Number | PR6423/001-121 |
| Manufacturer / Product Family | Emerson EPRO / PR6423 Series |
| Sensor Tip Diameter & Case Thread | 8 mm Tip Diameter | M10x1 Case Threads |
| Case Length (Option A) | 35 mm (A = 1) |
| Adapter Plug (Option B) | Without Adapter Plug (B = 1) |
| Cable Length & Armor (Option C) | 5.0 meters (C = 2) | Unarmored Cable |
| Cable End Termination (Option D) | Open Wire End (D = 1) |
| Linear Measurement Range | 2 mm (80 mils) | Initial Air Gap: 0.5 mm (20 mils) |
| Incremental Scale Factor (ISF) | 8 V/mm (203.2 mV/mil) ± 5% (0 to 45°C) |
| Deviation from Straight Line (DSL) | ± 0.025 mm (± 1 mil) (0 to 45°C) |
| Target Material & Min. Shaft Dia. | 42CrMo4 (AISI/SAE 4140) Ferromagnetic Steel | Min. Shaft Dia. 25 mm (0.79") |
| Enclosure Rating & Construction Materials | IP66 (IEC 60529) | PEEK Tip, Stainless Steel Case, PTFE Cable |
| Operating Temperature Range | Sensor & 1m Cable: -35 to +180°C | Cable & Connector: -35 to +150°C |
| Hazardous Area Certifications | ATEX, IEC-Ex, CSA (Intrinsic Safety 'ia' & Non-sparking 'nA') |
| Approximate Product Weight | 100 grams (3.53 oz) (Sensor with 1m cable base) |
Key Hardware & Operational Features
- Turbomachinery Condition Monitoring: Delivers continuous, high-precision measurement of radial vibration, axial thrust position, phase reference (keyphasor), and eccentricity across critical rotating assets.
- Rugged Industrial Construction: Built with a chemical-resistant PEEK sensor tip, stainless steel threaded body, and high-temperature PTFE cable insulation rated up to 180°C.
- Configured Ordering Options: Features the PR6423 standard configuration with a 35mm case length, unarmored 5.0m integral cable, and open lead wire terminations.
- Hazardous Location Compliance: Fully certified under ATEX, IECEx, and CSA standards for Intrinsic Safety (ia) and Non-sparking (nA) environments (T6/T4/T3 thermal classes).
Installation & Field Wiring Guidelines
1. Sensor Mounting: Thread the M10x1 body into the bracket and set a 0.5 mm air gap facing a 42CrMo4 steel shaft (min. 25 mm dia.).
2. Field Wiring: Route the 5.0m PTFE cable away from high noise lines and connect open ends directly to the signal transmitter terminals.
Frequently Asked Questions (FAQs)
Q1: What is the linear range of PR6423/001-121?
A1: It features a 2 mm (80 mils) linear range with an 8 V/mm (203.2 mV/mil) scale factor.
Q2: What cable options does PR6423/001-121 feature?
A2: It includes a 5.0m unarmored PTFE cable with open wire ends and no adapter plug.
Q3: What certifications apply to PR6423/001-121?
A3: It carries ATEX, IECEx, and CSA approvals for Intrinsic Safety and Non-sparking areas.
Additional Specifications
Scalar (V/f)
Vector
AC-powered
Buying Guide
- Confirm the exact model, part number, and specifications before ordering.
- Ensure compatibility with your current machinery or control systems.
- Reach out via sale@etowonauto.com or +8617859788089 for technical assistance.
- Review delivery options, lead times, and shipping requirements.
- Follow manufacturer instructions and best practices during installation.
Shipping And Return
In-stock items are typically dispatched the same business day. For products not currently in stock, dispatch times may vary based on availability. International shipping is available, and shipping costs are calculated according to destination, weight, and carrier selection.
Returns are accepted within 30 days of receipt, provided items are unused and in original condition. Return shipping costs are the responsibility of the customer. Please contact us before returning any item to receive return authorization.
For more details, please review our Shipping & Return Policy.

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