U41 ACFM® diver-deployed subsea system

USD 105,860.00
In stock
  • High-quality subsea, true ACFM inspections
  • Single frequency and without Array capabilities
  • Connect up to 3 probes simultaneously, 450m umbilical

Lead Time: 4 months (Standard/typical lead time)



U41D diver subsea kit. Incl. subsea bottle, topside unit, 20m interface umb., 5m PC Eth. cable, ferritic test block and transp. case. Requires Assist Pro Diver software subscription, sold separately.
More Information
ACFM connectors 3x Sensu 2
ACFM frequency 5 KHz, 50 KHz
Acquisition modes Clock
Cooling Sealed and fanless
Critical Zone Inspection (Curved Scaning) Yes
Depth rating Bottle: 300 m
High temperature inspections No
Paperless Reporting Yes
Rapid Coverage Yes
Remote control availability Yes
Rope access applications No
Umbilical length Up to 450m (1485 ft)
Automatic screenshot with defect entry Yes
Communications Ethernet (Topside Unit)
Compliance IEC 61010-1, IEC 61326-1, IEC 60945, IEC 60533, IEC 61010-1, IEC 60945, IEC 60533, CE, ICES-001, AS/NZS CISPR 22
Data readback on PC software Yes
Defect table (for reporting) Yes
Digitizing 16-bit resolution
Optional PC software available Yes
Probe recognition and setup (ChipID) Yes
Support custom application and probes Yes
Topside unit - type Topside unit D
Dimensions (W x D x H) 156×156×430 mm (6.2×6.2×17 in) (Bottle)
IP rating Bottle: IP68
Operating humidity 0-100%
Operating temperature 0°C to 45°C (32°F to 113°F)
Supported Technologies/Techniques ACFM
Storage temperature -20°C to 60°C (-4°F to 140°F)
Volume 4.3L (262.40 in3) (Bottle)
Weight (without batteries) 9.7kg (21.34lbs) in air / 5.5kg (12.1lbs) in water (Bottle)


  • Detection and sizing of subsea surface-breaking cracks
  • Diver-deployed from fixed platform, vessel or from saturation bell
  • Subsea ferritic or austenitic weld inspection in tight locations
  • Faster, less operator-dependant compared to MPI

"The U41 is the only true ACFM equipment for subsea structural welds and comes in a package which proved to speed up inspections substantially. You can now attach several probes at the same time and the new electronics allow much faster scans while maintaining very good data quality."

- ACFM Level II Operator 

U41 ACFM® diver-deployed subsea system
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