Eddyfi Technologies|Pulsed eddy current probes

Pulsed Eddy Current Array (PECA) Probe

Name: Pulsed Eddy Current Array (PECA) Probe
Brand: Eddyfi Technologies

Six-channel pulsed eddy current array probe delivers wide-pass coverage for detecting corrosion under insulation and fireproofing on pipes, vessels and sphere legs.

PECA

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Overview

Product overview

The Pulsed Eddy Current Array (PECA) Probe is designed to detect corrosion under insulation (CUI) and corrosion under fireproofing (CUF). Its six-element array covers 457 mm (18 in) in a single pass, supporting inspection of pipes, vessels, sphere legs and other complex structures.

The probe uses pulsed eddy current array testing to inspect through coverings such as fiberglass, plastic wrap, concrete and other non-ferrous materials, as well as stainless steel and aluminum weather jackets. Its specified inspection envelope includes wall thicknesses of 6–25 mm (0.25–1.0 in) and insulation or coating liftoff of 0–102 mm (0–4 in). It can be configured for external diameters from 152 mm (6 in) to flat surfaces, with the diameter including insulation or fireproofing and the weather jacket.

Wide array coverage and Grid-As-U-Go reduce the preparation and gridding associated with typical single-element PEC inspections. With C-scan display, the probe can improve overall inspection productivity by as much as 10 times compared with single-element PEC probes. Applications include detecting corrosion, erosion and other defects to support asset integrity and maintenance programs.

Key Features

Key capabilities

Six-channel array

The six-element PECA design provides 457 mm (18 in) of coverage in a single pass.

Higher inspection productivity

Overall inspection productivity can be as much as 10 times that of single-element PEC probes.

Grid-As-U-Go

Grid-As-U-Go reduces inspection preparation and gridding time compared with typical single-element PEC.

Curved and flat surfaces

The probe can be configured to inspect external diameters from 152 mm (6 in) to flat surfaces.

Inspection through coverings

The probe works through fiberglass, plastic wrap, concrete and other non-ferrous materials within its stated inspection limits.

Weather jacket capability

Specified weather jacket thicknesses are 1 mm (0.04 in) for aluminum and 1.5 mm (0.06 in) for stainless steel.

C-scan display

C-scan display supports rapid inspection with the wide-coverage array.

Specifications

Published technical specifications

Values as published by Eddyfi Technologies. Where models or variants differ, each is listed separately.

GENERAL

Casing: Medium
Number of channels: 6
Total coverage: 457 mm (18 in)
Wall thickness: 6–25 mm (0.25–1.0 in)
Insulation/coating thickness (liftoff): 0–102 mm (0–4 in)
Weather jacket thickness — Aluminum: 1 mm (0.04 in)
Weather jacket thickness — Stainless steel: 1.5 mm (0.06 in)
Outer diameter range: 152 mm (6 in) to flat surfaces [including insulation/fireproofing and weather jacket]
Encoder: 16.04 counts/mm (407.44 counts/in)
Cable: 5 m (16.4 ft)

Performance

Number of elements: 6
Overall inspection productivity compared with single-element PEC: as much as 10 times

Operating conditions & limits

Specified wall thickness range: 6–25 mm (0.25–1.0 in).
Specified insulation/coating thickness (liftoff): 0–102 mm (0–4 in).
Outer diameter range starts at 152 mm (6 in), including insulation/fireproofing and weather jacket, and extends to flat surfaces.
Specified weather jacket thicknesses: aluminum 1 mm (0.04 in); stainless steel 1.5 mm (0.06 in).
The productivity improvement is as much as 10 times compared with single-element PEC, not a guaranteed increase.