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Sitescan D-50

Sonatest Sitescan Flaw Detectors have always meant highly reliable, technician focused flaw detection equipment and this model builds on that tradition.

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Sitescan D-50


The Sitescan D-50 offers the end user an entry level broadband flaw detector in the popular and portable casing of the established D-Series; with a full VGA display, a 50nS (Spike) 200V, a Pulser 0.5dB gain resolution and an optional rubber boot.

Typical applications are Weld Fabrication, Corrosion Detection, Forgings & Castings and general UT inspection.


Reliable, Rugged & Robust

An instrument's ability to perform in harsh environments with proven reliability is an important aspect of flaw detector ownership and this is enhanced by the Sitescan D-50's outstanding battery performance, which is up to 10.5 hours from full charge. The Sitescan D-50's enclosure is constructed using automotive grade impact resistant materials and offers excellent water resistance. Environmental testing has confirmed the instrument is fully functioning at temperatures above 55°C. The Sitescan D-50 has a colour transflective VGA display, providing high visibility in any lighting conditions. Maxi,u, readability is achieved through adjustable brightness and the choice of 9 colour palettes, including a black-on-white LCD emulation mode.

Advanced Defect Sizing Tools as Standard

Weld an pipe inspection are major applications for the Sitescan D-50 which is equipped with the latest software tools for defect sizing. The use of integrated sizing software reduces analysis time and speeds inspection. Multiple standard sizing techniques are essential for service companies working to different customer standards, especially as service work becomes more international and operators are required to work to different codes.

Sizing Techniques and Software Options include:

  • DAC (Standard)
  • Split DAC & DGS/AVG (Option)
  • TCG (Option)
  • Backwall Echo Attenuation (BEA) Option (requires TCG)
  • AWS (Option)
  • AVG/DGS (Option)
  • API (Option)
  • Interface Trigger (Option)
  • Corrosion Software (Option)

UT-Lity Lite Data Management Software

Ut-Lity Lite software provides everything you need to manage your inspection data. The Standard (Lite) version is FREE with every instrument and give you the ability to view, move and manage Calibrations, A-Scans, B-Scans and Thickness Logs both on the instrument and on your PC. With UT-Lity Lite you can also create customised inspection report templates, cut-n-paste information to other applications and create printable pdf documents.

  • Load, store, manage files both on the PC and on a connected flaw detector
  • Save, analyse, colour code and export thickness logging data to spreadsheets/asset management software
  • Update the Flaw Detector and Firmware as and when updates become available on our website

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Test Range1mm (0.4in) to 10,000mm (394in)
Velocity1000 - 10,000m/s continuously variable
Probe Zero0 to 1000μs
Delay0-10,000m (400in) in steel at 5930m/s (19455f/s)
Gain0 to 110dB adjustable in 0.5, 1, 2, 6, 10, 14 and 20dB steps
Test ModesPulse echo and transmit/receive
Pulser200V fixed. 50nS square wave. Rise/Fall times <15nS into 50R load
Damping50 and 400 Ohm damping selectable
P.R.F.Adjustable 5Hz to 1kHz. External sync also available
Screen Update Rate60Hz
RectificationRF, Full wave, +ve half-wave and -ve half-wave
Frequency Range1.0MHz to 14MHz (-3db)
System LinearityVertical = 0.5% Full Screen Height (FSH). Horizontal +-0.2% Trace Full Screen Width (FSW)
Reject (Selectable)Up to 80% Linear reject (removes baseline noise without affecting indication amplitude)
orUp to 50% Suppressive reject (increase zero offset and reduces amplitude of all echoes) LED Warning when active.
UnitsMetric (mm), Imperial (in)
DisplayColor Transflective VGA (640 x 480) TFT. Display area: 116.16 x 87.2 mm (4.57 x 3.43 in). A-Scan Area: 400 x 510 pixels (normal), 460 x 620 (FS). Colors: 9 color options with variable brightness
Gate MonitorTwo independent gates for measurement and monitoring. Start and width fully adjustable over the entire range of the instrument. Levels adjustable from 0% to 100%, positive or negative triggering on each gate with audible & visual alarms. Gate resolution is 5nS
ZoomExpands range and delay to cover the area set by Gate 1 start & width controls
AGCAutomatic Gain Control automatically sets the signal in Gate 1 to a level between 10% and 90% FSH, tolerance between 5% and 20%.
Measurement Modes
Mode 1Signal monitor, Gate alarms can be active but no measurements are displayed
Mode 2Depth and amplitude of first signal in gate
Mode 3Echo-Echo distance measurements
Mode 4Trigonometric display of beam-path, surface distance (including X-offset) and depth of indication from the inspection surface together with echo amplitude. Curved surface correction can be applied for convex and concave surfaces. Half-skip can be indicated on screen
Mode 5Gate to Gate distance measurement
Mode 6Flank to Flank
Mode 7Beam Angle, calculated from beampath, hole radius and hole centre depth
Measurement DisplayLive display and updates on screen at 10 times per second. Large display of a single measurement available
Waveform Smoothing Select from:i) None (both min and max values are displayed in the A-Scan)
ii) Fill (Min values set to baseline value, produces a solid A-Scan)
iii) Smooth (min values ignored, produces a clear outline
Auto-CalProvides automatic calculation of velocity and probe zero from 2 reference echoes. Automatic calibration with two echoes
Reference WaveformDisplays a previously stored A-log in a color different from the active display: enabling a quick visual check of the differences
ClockBuilt in, battery-backed RTC keeps time and date. Visible on the status line, always stored with Panels, A-logs etc.
Internal Memory4GByte storage available for A-scans, panels, T-logs, B-logs etc. 450,000 Panels, 200,000 A-Logs, 300,000 B-Charts, 440,000 T-Logs
Active Peak MemoryRetains all A-scans on screen for echo-dynamic pattern analysis, with the active A-scan displayed in a separate color
NotesAlphanumeric labelling for panel stores, A-logs, B-logs etc.
Display FreezeHold the current waveform on screen for off-line processing
Help KeyShows software and hardware information
Language SupportMultiple languages are selectable from a list including: English, French, Spanish, Russian, Chinese (Modern). Others are available on request
Encoder ConnectionLemo min 4-pin connector
Video OutputFactory Option
Proportional OutputsAvailable on 500S
External SyncAvailable on 500S
USB ConnectionInternal storage shown as Memory Device
Transducer SocketsBNC or LEMO (factory option)
PowerBattery life for SS500 is 13.5 hours and for D-50 it is 10.5 hours.
Charger100-240VAC, 50-60Hz
EnvironmentalCase sealed to IP67
TemperatureOperating -10°C to 55°C (14°F - 131°F). Storage -40°C to 75oC (-40°F - 167°F)
SizeH 172mm x W 238mm x D 70mm (6.77in x 9.37in x 2.75in)
Weight1.7 kg (3.7lbs) with battery
Warranty2 year
Extended WarrantySonacover - extended 5 year warranty, including 4 calibrations
Calibration StandardISO 22232-1:2020 (Detailed Specification available on request)
StandardsVibration to 514.5-5 Proc 1 Annex C Fig 6 Shock 516.5 Proc 1 15g/6ms Explosive atmospheres - MIL-STD 810G Methos 511.5, Procedure I

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Product CodeDescription
D50 KITSitescan D-50 Digital Flaw Detector BNC
Battery, Charger, Charger mains cable
User Guide
Certificate of Instrument Calibration & Conformity
Carry Bag
UT-Lity and USB cable
Display Window Cover
Ultrasonic Couplant

Accessories & Spares

Product CodeDescription
800208CH700 Battery Charger
242173D-Series Battery Pack
195167D-Series Storm Case
195194D-Series Storm Case - Eco
195123D-Series Protective Sleeve
195163D-Series Carry Bag
165027RCA Video OutPut Cable
165028USB Type A Male Cable Assy
152120Cable DFD to PC
165040Proportional O/P lead
145221Masterscan Replacement Screen Cover
145324Masterscan Screen Cover
MPS-701EUFlaw Detector Mains Pack
MPS-701UKFlaw Detector Mains Pack
MPS-701USFlaw Detector Mains Pack
192025US Mains Lead Plug
192026UK Mains Lead Plug
192027Euro Mains Lead Plug
136168BNC to BNC 50 Ohm
136169BNC Female to LEMO Male
136171Lemo (M) to Lemo 00 (F)
152018BNC (M) to LEMO (F) Adaptor
KMA KIT 1Stand Support Pack
KMA-01Magnetic Mt'g Bracket Assy
KMA-03hook Mt'g Bracket Assy

UT-Lity Pro (Advanced User Software)

UT-Lity Pro is the "professional" version and works in conjunction with the Corrosion Software option, providing the end user with the ability to create and manage inspection plans, location notes, historical thickness readings and other asset management information as required.

  • Set up inspection plan (gris) templates, notes and labels
  • Import previous readings into an inspection plan
  • Export inspection plan data to spreadsheets and plant maintenance databases

Flaw Detector Software Options

Product CodeDescription
SW-APIAPI Software
SW-AWSAWS Software
SW-BEABEA Software
SW-CORROSIONT-Log + B-Chart Software
SW-DGSDGS Software
SW-IFTIFT Software
SW-SPDACSplit DAC Software
SW-TCGTCG Software
UTILITY PROUT-Lity Pro Software

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Brochure & Specification

Type Title Date Size
PDF file icon Sitescan 500s and D-50 (Feb 2024) 08/23 Download 4.28 MB

Li-Ion Battery Information

Software Updates

UTLity Software UpdatesJuly 2016v1.4.1018MDownload

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