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BMPTECH
CP-Probe BCP-CPEL-001
Sensors

CP-Probe BCP-CPEL-001

Electrochemical potential probe for subsea cathodic protection inspection, in Delrin to 300 m or 6AL-4V titanium to 4,500 m.

The CP-Probe is BMPTECH's subsea electrochemical potential measurement system, developed for cathodic protection inspection integrated with ROVs.

Datasheet: PT EN

The CP-Probe, internally designated CPEL METER model BCP-CPEL-001, is a subsea electrochemical potential measurement system developed and manufactured by BMPTECH for cathodic protection (CP) inspection of submerged structures. The package combines a remote voltmeter, graphic display, charger and interchangeable contact or proximity probe tips, covering different measurement geometries in the field. The reading stage uses a 24-bit analog-to-digital converter and high-stability components, delivering up to 6 digits of resolution for reliable protection potential surveys. The probe comes in two constructions: a Delrin (POM) housing, for operation down to 300 meters, and a machined 6AL-4V titanium housing, which takes the equipment to 4,500 meters. Its compact form factor is designed for integration into small ROVs, and the electronics engineering, firmware and manufacturing are developed in-house at BMPTECH, enabling calibration, maintenance and adaptation of the unit throughout its full life cycle. A 6800 mAh lithium battery provides up to 36 hours of continuous operation, and data is transmitted to the surface over RS232, RS422 or RS485 for integration with broader inspection systems.

Applications

  • Cathodic protection inspection of pipelines, risers and submerged structures
  • Field electrochemical potential surveys offshore integrated with ROVs
  • Verification of cathodic protection systems on platforms and subsea equipment
  • Integration into subsea inspection systems on compact ROVs

Key features

  • 24-bit analog-to-digital converter with high-stability components, delivering up to 6 digits of resolution in potential measurement
  • Interchangeable contact or proximity probe tips for different inspection geometries and conditions
  • Two constructions: Delrin (POM) for depths to 300 meters, and 6AL-4V titanium for depths to 4,500 meters
  • 6800 mAh lithium battery providing up to 36 hours of continuous operation
  • High-contrast OLED display with wide viewing angle for local readout
  • Surface transmission over RS232, RS422 or RS485 for straightforward integration with inspection systems
  • Compact form factor designed for integration into small ROVs
CP-Probe charger with OLED display showing battery level, connected to the probe by the blue cable
Charger with OLED display. Charge level and battery voltage are read on the equipment itself, before mobilizing, instead of by counting hours since the last recharge.
CP-Probe proximity tip, in a light-colored body, uncoupled beside the probe body
Proximity tip, uncoupled. Tips are interchangeable: contact and proximity share the same probe, and the swap follows the geometry of the structure being measured.

Specifications

ModelBCP-CPEL-001 (CPEL Meter)
BatteryLithium 6800 mAh, over 36 h runtime
DisplayOLED 1.3"
CommunicationRS232 / RS422 / RS485
Power supply12 to 48 VDC
Power consumptionApproximately 120 mA
InsulationGreater than 200 MΩ
Housing materialDelrin (POM) or 6AL-4V titanium, depending on version
DepthUp to 300 m in Delrin, up to 4,500 m in 6AL-4V titanium
Reference electrodeAg/AgCl half-cell

Specifications subject to change without notice. Contact us for the full datasheet.

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