Product Overview

The Emerson EPRO PR6423/010-000 is an 8mm eddy current sensor. This non-contact probe is designed for critical turbomachinery applications. You can use the PR6423/010-000 for steam, gas, and hydro turbines. It also works well for compressors, gearboxes, pumps, and fans. The sensor measures radial and axial shaft dynamic displacement. Additionally, it monitors position, eccentricity, and speed. Rugged construction with PEEK tip and stainless steel case ensures long-term reliability.

Technical Specifications

The PR6423/010-000 delivers precision measurements for machinery protection. Below are the core technical details.

General Specifications:

• Model Number: PR6423/010-000.

• Manufacturer: Emerson EPRO.

• Tip Diameter: 8mm.

• Case Threads: M10x1.

• Armored Cable: Yes.

• Adapter Plug: Included (B=0).

• Cable Length: 4.0 meters (C=0).

• Cable End: Lemo (D=0).

Performance Specifications:

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

• Initial Air Gap: 0.5 mm (20 mils).

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

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

Temperature Range for Specifications:

• 0 to 45°C (+32 to +113°F).

Measuring Target Specifications

The PR6423/010-000 requires specific target conditions for optimal performance.

Minimum Shaft Diameter:

• 25 mm (0.79 inches).

Target Material (Standard):

• 42CrMo4 (AISI/SAE 4140) ferromagnetic steel.

Target Material (Optional):

• Other materials available upon request.

Environmental Specifications

The PR6423/010-000 withstands harsh industrial environments.

Protection Class:

• IP66 per IEC 60529.

Operating Temperature Range:

• Sensor incl. 1m Cable: -35 to +180°C (-31 to 356°F).

• Cable & Connector: -35 to +150°C (-31 to 302°F).

Materials of Construction

The PR6423/010-000 uses high-quality materials for durability.

Sensor Tip:

• PEEK (Polyether Ether Ketone).

Case:

• Stainless Steel.

Cable:

• PTFE (Polytetrafluoroethylene).

Connector:

• Brass, nickel-plated.

Weight:

• Sensor with 1m Cable: Approx. 100 grams (3.53 oz).

Compliance and Certifications

The PR6423/010-000 meets international standards for safety and performance.

CE Directives:

• 2014/30/EU (EN 61326-1).

• 2014/34/EU (ATEX).

• 2011/65/EU (RoHS).

ATEX Standards:

• EN 60079-0.

• EN 60079-11.

IEC-Ex Standards:

• IEC 60079-0.

• IEC 60079-11.

• IEC 60079-26.

CSA Standards:

• CAN/CSA-C22.2 NO. 0-M91, NO. 157-92, NO. 213-M1987.

• CAN/CSA-E60079-15-02 (R2006), NO. 25-1966, NO. 61010-1-04.

UL Standards:

• ANSI/UL Standard 913-2004, 1604-1995.

• UL 60079-15 2002, UL 61010-1.

Hazardous Area Approvals

The PR6423/010-000 is approved for use in explosive atmospheres.

Intrinsic Safety (ia):

• ATEX / IEC-Ex / CSA approved.

• Area classification depends on converter.

• Refer to converter documentation for details.

Sensor Temperature Classification:

• T6: Ta ≤ 64°C.

• T4: Ta ≤ 114°C.

• T3: Ta ≤ 160°C.

Non-Sparking (nA):

• ATEX / IEC-Ex / CSA approved.

• Area classification depends on converter.

Sensor Temperature Classification:

• T6: Ta ≤ 64°C.

• T4: Ta ≤ 114°C.

• T3: Ta ≤ 160°C.

Ordering Information Breakdown

The PR6423/010-000 follows a specific ordering code structure.

Model Base:

• PR6423/01: 8mm eddy current sensor.

Case Thread (A):

• 0: 25mm adapter plug included.

Cable Length (C):

• 0: 4.0 meters.

Cable End (D):

• 0: Lemo connector.

Comparison with PR6423/010-010

The PR6423/010-000 differs from the PR6423/010-010 in cable length.

• PR6423/010-000: 4.0 meter cable (C=0).

• PR6423/010-010: 5.0 meter cable (C=1).

All other specifications remain identical between both models.

Key Features

The PR6423/010-000 offers several advantages for machinery protection.

• Non-contact measurement eliminates mechanical wear.

• High temperature rating up to 180°C at sensor tip.

• IP66 protection for wash-down environments.

• ATEX and IECEx certified for hazardous areas.

• Compatible with standard EPRO converters.

• Suitable for API 670 compliant monitoring systems.

• Armored cable provides additional mechanical protection.

Installation Guidelines

Install the PR6423/010-000 according to standard proximity probe practices. Ensure the target shaft diameter meets the minimum 25 mm requirement. Set the initial air gap to approximately 0.5 mm (20 mils). Use the M10x1 threads for mounting in the probe holder. Connect the Lemo connector to the appropriate EPRO converter. Route the armored cable away from high-voltage sources. Do not exceed the specified temperature limits. For hazardous area installations, follow the converter documentation for classification.

What is in the Box

Please inspect all items upon delivery.

• Emerson EPRO PR6423/010-000 eddy current sensor.

• Integral armored cable (4.0 meters) with Lemo connector.

• M10x1 mounting threads with 25mm adapter plug.

• Anti-static protective bag.

Frequently Asked Questions (FAQ)

1. What is the difference between PR6423/010-000 and PR6423/010-010?
The PR6423/010-000 has a 4.0 meter cable length. The PR6423/010-010 has a 5.0 meter cable. All other specifications are identical.

2. What is the linear measurement range of this sensor?
The PR6423/010-000 has a linear measurement range of 2 mm (80 mils). The initial air gap is 0.5 mm (20 mils).

3. Can I use this sensor in a hazardous area?
Yes. The PR6423/010-000 has ATEX, IEC-Ex, and CSA approvals for intrinsic safety (ia) and non-sparking (nA) installations.

4. What is the maximum operating temperature for this probe?
The sensor tip withstands -35 to +180°C. However, the cable and connector are limited to -35 to +150°C for the PR6423/010-000.

5. What type of connector does this sensor use?
The PR6423/010-000 uses a Lemo connector at the cable end. The adapter plug uses a 25mm fitting for converter connection.