Product Description
Technical Specification
Instruction ManualData Sheet

FD800 Bench Top Flaw Detectors

The bench-top FD800 flaw detector range combines state-of-the-art flaw detection with advanced material thickness capabilities.

Designed for use in the laboratory these gauges are the tool you need for all your flaw detecting needs.

The Elcometer FD800 Bench Top Flaw Detector is available in two models: FD800DL and FD800DL+.

The time corrected gain (TCG) feature  automatically compensates for sound attenuation through a material, further increasing the performance of the gauge.

Within the grid batching of the FD800DL+ the user has the capability to enter 'OBSTRUCT' on to the grid for easy identification of inaccessible locations to measure.

The FD800DL+ has a 6Gb internal memory and an external SD slot which allows up to 64Gb with full data logging via RS232 data output to ElcoMaster® data management software.


FD800 Flaw Detection


  • Blanview sunlight readable QVGA TFT colour display
  • Sizing Toolkits: DAC, AWS, TCG, DGS
  • Pulse Repetition Frequency: 8 to 333 Hz, adjustable
  • Screen Refresh Rate: 60Hz
  • Detection: Z-Cross, Flank & Peak
  • Automatic: probe zero, probe recognition, and temperature compensation
  • Measurement: Variety of modes to address a number of applications
  • Large data storage: 6Gb internal & up to 64Gb external SD slot
  • Multiple formats: Alpha numeric grid and sequential with auto identifier
  • Up to 12 hours of battery life
  • Download to ElcoMaster® data management software



Pulsed Echo (P-E) Measurement Mode Echo Echo (E-E) Measurement Mode Pulsed Echo Temp Comp (PETP) Measurement Mode Pulsed Echo Coating Thickness (PECT) Measurement Mode Echo Echo Verify (EEV) Measurement Mode Coating Thickness (CT) Measurement Mode Automatic Gain Control (ACG) B-Scan A-Scan

 Distance Amplitude Correction (DAC) American Weld Standard (AWS) AVG/DGS Time Corrected Gain (TCG)    

FD800 Bench Top Flaw Detectors
FD800 Bench Top Flaw Detector in TRIG ModeFD800 Bench Top Flaw Detector in TCG ModeFD800 Bench Top Flaw Detector in AWS Mode

Technical Specification

Model & Part Number FD800DL & FD800DL+
Material thickness digits display

B-Scan cross sectional display

B-Scan with digits display

Scan bar display

Coating thickness display

A-Scan display + Rectified, - Rectified, Full Waveform (RF) 
Flaw detection modes TRIG, DAC, AWS, TCG, Zero Crossing, Flank, Peak 
Measurement Mode1 PE, PETP (Temp Compensation),
EE (ThruPaint™), EEV, CT (Coating) & PECT
Measurement Rate (Thickness Mode)
Scan mode
Scan bar display

4 readings per second
32 readings per second
6 readings per second
Measuring Range2 PE: 0.63 - 30480mm (0.025 - 1,200 inches)
PETP: 0.63 - 30480mm (0.025 - 1,200 inches)
EE: 1.27 - 102mm (0.050 - 4.000 inches)
EEV: 1.27 - 25.4mm (0.050 - 1.000 inch)
CT: 0.01 - 2.54mm (0.0005 - 0.100 inch)
PECT: 0.63 - 30480mm (0.025 - 1,200 inches)
PECT: 0.01 - 2.54mm (0.0005 - 0.100 inch)
Measurement Accuracy2

± 1% or ±0.1mm whichever is the greater

Measurement Resolution 0.01mm (0.001 inch)
Velocity Calibration Range 256 - 16,000m/s (0.0100 - 0.6300in/ms)
Additional Features:  
High speed scan mode

Differential mode

Limit alarm mode

B-Scan display speed adjustable display speed
Calibration setups 6 factory & 64 user-definable setups
transferrable to and from a PC archive
Gates 3 fully adjustable gates:
start, stop, width & threshold
Damping adjustable; impedance matching for
optimising transducer performance
Pulser type

FD800DL: two adjustable square wave pulsers.
FD800DL+: two tone burst pulsers

Gain manual, automatic gain control (AGC)
with 110dB range with 0.2dB resolution
Timing precision TCXO timing with single shot
100MHz 8bit ultra low power digitizer
Data logging • 6Gb internal & up to 64Gb external SD slot
• Bitmap graphic capture
• sequential and grid logging
• Alpha numeric batch identification
• OBSTRUCT indicates inaccessible locations
Calibration Options single, two point, velocity & material type
Transducer recognition automatic
V-path / dual path error correction automatic
Probe zero automatic
Flaw Detection Mode Features
Longitudinal (straight),
or Shear (angle)
Probe Types: Single Contact, Dual, Delay & Angle
Material Velocity Table: Contains longitudinal and shear
velocities for a variety of material types
TRIG Trigonometric display of beam path,
depth, surface distance, and curved surface correction.
Used with angle beam transducers
DAC Up to 8 points may be entered and used to digitally
draw a DAC curve. Reference -2, -6, -10, (-6/-12),
(-6/-14), (-2/-6/-10) dB. Amplitude displayed in
%DAC, dB, or %FSH
AWS Automatic defect sizing in accordance with AWS
D1.1 structural welding code.
AVG/DGS Automatic defect sizing using probe
data. Stores up to 64 custom setups
TCG Time corrected gain. 50 dB dynamic range, 20 dB
per microsecond, up to 8 points for curve definition
Detection Modes Zero Crossing, Flank and Peak
Display Freeze Hold current waveform on screen
Peak Memory Captures peak signal amplitude.

8 to 2000Hz in selectable steps (8, 16, 32, 66, 125, 250, 333, 1000, 2000Hz)

Pulse Width 40 to 400 ns. Selectable step
options 40, 80 & 400 ns (labeled spike, thin &
Frequency Bands FD800DL & FD800DL+: Broadband 1.8 - 19 MHz (-3dB). Four narrow bands at 1, 2, 5, 10MHz
FD800DL+: Additional narrow bands at 5MHz, 15MHz
Horizontal Linearity +/- 0.4% FSW
Vertical Linearity +/- 1% FSH
Amplifier Linearity +/- 1 dB
Amplitude Measurement 0 to 100% FSH, with 1% resolution
Delay 0 - 999in (25,375mm) at steel velocity

Blanview sunlight readable QVGA TFT colour display.

115.2 x 86.4mm (4.54 x 3.40 inches) viewable screen

Display Refresh Rate 60Hz
Units (selectable) mm or inches
Backlight adjustable brightness
Repeatability / Stability Indicator

Battery Type 6 x AA alkaline
Battery Life
12 hours
Low Battery Indicator

Battery Save Mode auto
Operating Temperature -10 to 60ºC (14 to 140ºF)
Size (w x h x d)

216.0 x 165.0 x 70.0mm
(8.5 x 6.5 x 2.5 inches)

Weight (including batteries) 2.04kg (4.5lbs)
Case Design Aluminium case design with gasket sealed end
caps, waterproof membrane keypad
Transducer Connector Type LEMO
RS232 Interface Bi-directional
Packing List

Elcometer NDT FD800DL or FD800DL+ gauge, couplant, carry case, user manual, test certificate,

6 x AA batteries, ElcoMaster® software, transfer cable


¹ PE: Pulse-Echo Mode, EE: Echo-Echo (ThruPaint™) Mode.

² Measuring range & accuracy depends on material, surface conditions and the transducer selected.


Cables & Adaptators  
TL-24030-1 T/Cable: 4' Single Lemo 00 to BNC
TL-24030-2 T/Cable: 4' Single Lemo 00 to Lemo 00
TL-24030-3 T/Cable: 4' Single Lemo 00 to Microdot
TL-24030-5 T/Cable: 4' Dual Lemo 00 to BNC
TL-24030-6 T/Cable: 4' Dual Lemo to Lemo
TL-24030-7 T/Cable: 4' Dual Lemo to Microdot
TL-24030-8 T/Cable: 4' Dual Lemo to Microdot Single
TL-24031 RS232 Cable (6'); DB-9 to Lemo
TL-24032 USB to Serial Adapter
TC-24034-1 Couplant: Standard; 4oz Bottle (Material Safety Data Sheet)
TC-24034-2 Couplant: Standard; 12oz Bottle (Material Safety Data Sheet)
TC-24034-3 Couplant: Standard; 1 Gallon (Material Safety Data Sheet)
TC-24034-9 Couplant: Hi-Temp 510oC; 2oz Tube (Material Safety Data Sheet)
Delay Lines  
TD-24033-1 Cone Tip Delay Line: Acrylic; 1/8"
TD-24033-2 Cone Tip Delay Line: Acrylic; 3/16"
TD-24033-3 Cone Tip Delay Line: Graphite; 3/16"
TD-24033-4 Delay Tip (P): Acry; 1/16" Dia x 0.45" L
TD-24033-5 Delay Tip (P): Acry; 1/8" Dia x 0.45" L
TD-24033-6 Delay Tip: Acrylic; 1/4" Dia x 1/2" L
TD-24033-7 Delay Tip: Acrylic; 1/4" Dia x 3/8" L
TD-24033-8 Delay Tip: Graphite; 1/4"
Other Accessories  
TZ-24035 6" Ext Wand for S/E Microdot Transducers