EMERSON EZ1080 Eddy Current Sensor Modules: EZ1080-RM-00-100

Technical Dossier

Product Details And Specifications

EMERSON EZ1080 Series: Comprehensive Module Range and Technical Overview

The EMERSON EZ1080 eddy current sensor series is a precision proximity and vibration measurement platform deployed across global heavy industry installations, including petrochemical refineries, nuclear power stations, offshore platforms, and rotating machinery protection systems. Based on the Bently Nevada eddy current sensing principle — now integrated under the EMERSON Automation Solutions portfolio — the EZ1080 series provides non-contact displacement measurement for shaft vibration, axial position, differential expansion, and eccentricity monitoring. Its installed base spans critical turbomachinery in facilities operated by ExxonMobil, Shell, SABIC, and comparable tier-1 industrial operators. The series is fully compatible with Bently Nevada 3500 Series machinery protection racks and interfaces with System 1 condition monitoring software, making it a foundational component in continuous online machinery health monitoring architectures.

The Evolution of EZ1080 Architecture

The EZ1080 series traces its lineage to the Bently Nevada 7200 and 3300 series eddy current transducer systems, which established the industry standard for non-contact shaft sensing in the 1970s–1990s. As EMERSON acquired Bently Nevada in 2002, the product roadmap was consolidated under unified signal conditioning and rack-mount architectures. The EZ1080 represents the rationalized, field-replaceable remote mount variant designed for installations where the driver/monitor electronics must be separated from the probe tip by extension cable — a topology common in high-temperature or high-vibration environments where direct-mount electronics are impractical.

Architecturally, the EZ1080 system consists of three interdependent components: the probe (tip assembly), the extension cable, and the proximitor/driver module. The EZ1080-RM-00-100 designates the remote-mount driver module configured for a 100 mm (approximately 4-inch) nominal gap range, operating on the standard Bently Nevada -24 VDC supply rail. Compatibility is maintained with 3500/42M, 3500/44M, 3500/46M, and 3500/50M monitor modules. Legacy 7200 series installations can be retrofitted using EZ1080 components with appropriate signal conditioning adapters. As the broader EZ1080 platform has entered a mature/end-of-active-production lifecycle, long-term maintenance support — including tested surplus and refurbished units — is the primary procurement pathway for most operators.

EZ1080 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified models within the EMERSON EZ1080 eddy current sensor ecosystem, classified by functional role:

Remote Mount Driver / Proximitor Modules

• EZ1080-RM-00-100: Remote mount proximitor, 100 mm range, standard -24 VDC, rack or field enclosure mount
• EZ1080-RM-00-050: Remote mount proximitor, 50 mm range, optimized for short-gap shaft sensing applications
• EZ1080-RM-00-200: Remote mount proximitor, 200 mm extended range, used in large-bore turbine axial position monitoring
• EZ1080-RM-01-100: Remote mount proximitor, 100 mm range, enhanced EMI shielding variant for high-interference environments
• EZ1080-RM-02-100: Remote mount proximitor, 100 mm range, high-temperature rated housing (-50°C to +85°C)

Probe Tip Assemblies

• EZ1080-A1-B0-C0: 5 mm diameter probe tip, standard stainless steel, 1 m integral cable
• EZ1080-A1-B0-C1: 5 mm diameter probe tip, stainless steel, 3 m integral cable
• EZ1080-A2-B0-C0: 8 mm diameter probe tip, standard configuration, 1 m integral cable
• EZ1080-A2-B1-C0: 8 mm diameter probe tip, armored cable, 1 m, for high-vibration routing
• EZ1080-A3-B0-C0: 11 mm diameter probe tip, large-target sensing, 1 m integral cable
• EZ1080-A3-B0-C1: 11 mm diameter probe tip, 3 m integral cable, standard stainless steel

Extension Cables

• EZ1080-EC-01-005: Extension cable, 5 m, standard coaxial, connects probe to remote driver
• EZ1080-EC-01-009: Extension cable, 9 m, standard coaxial, for increased probe-to-driver separation
• EZ1080-EC-02-005: Extension cable, 5 m, armored coaxial, for conduit-routed installations
• EZ1080-EC-02-009: Extension cable, 9 m, armored coaxial, high-mechanical-protection variant

Mounting & Accessory Hardware

• EZ1080-MK-01: Standard probe mounting bracket kit, carbon steel, adjustable radial positioning
• EZ1080-MK-02: Stainless steel probe mounting bracket kit, for corrosive or washdown environments
• EZ1080-TRM-01: Field termination and junction box for remote mount driver, IP65 rated

Sourcing Hard-to-Find & Obsolete EZ1080 Parts

The EZ1080 series has entered a mature lifecycle phase. EMERSON / Bently Nevada no longer lists all variants as actively manufactured, and lead times through OEM distribution channels are extended or indefinite for many sub-models. DriveKNMS maintains a dedicated inventory of tested surplus, refurbished, and new-old-stock EZ1080 components to support operators who cannot justify a full system migration to the current Bently Nevada SCOUT or 3500 Series replacement platforms.

DriveKNMS sources EZ1080 units from decommissioned plant inventories, authorized surplus channels, and direct factory overstock. Each unit is individually logged with traceability documentation. For operators running 3500 Series racks with EZ1080 probes and drivers, DriveKNMS can supply matched probe-cable-driver sets to maintain system calibration integrity. Emergency same-day quotation is available for unplanned outage scenarios.

Quality Control for the EZ1080 Range

Eddy current sensor systems require functional verification at the system level — probe, extension cable, and driver must be tested as a matched set to confirm gap-versus-voltage linearity. DriveKNMS applies the following test protocol to all EZ1080 units prior to dispatch:

• Gap linearity sweep: Each probe-driver pair is tested across the full nominal gap range using a calibrated non-ferrous target plate. Output voltage linearity is verified against the published Bently Nevada sensitivity specification (typically 7.87 V/mm ± 0.5%).
• Cable continuity and impedance check: Extension cables are tested for center conductor continuity, shield integrity, and characteristic impedance to confirm signal transmission fidelity.
• Driver supply current verification: Remote mount driver modules are powered at -24 VDC and supply current draw is measured to confirm internal oscillator circuit health.
• Output noise floor measurement: AC noise on the DC output signal is measured to confirm it is within the Bently Nevada specification for the relevant monitor module input.
• Thermal cycling (refurbished units): Refurbished drivers undergo a 4-hour thermal soak at 70°C followed by ambient cool-down before final electrical verification.

All test results are documented and shipped with each unit. Certificate of conformance is available on request.