Product Description
Technical Specification
Instruction Manual
Data Sheet

FD700 Mini Flaw Detectors

The hand-held FD700 flaw detector range combines state-of-the-art flaw detection with advanced material thickness capabilities.

The Elcometer FD700 Mini Flaw Detector is available in two models: FD700+ and FD700DL+.

Whether you are on-site or in the laboratory these gauges are the tool you need for all your flaw detecting needs.

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

The FD700DL+ stores up to 4GB worth of readings with A/B-scan images in alpha numeric batches with full data logging and firmware updates via USB data output to ElcoMaster® data management software.


FD700 Flaw Detection 


  • Exceptional visibility in sunlight (AMOLED)
  • colour VGA display (320x240 pixels)
  • Sizing Toolkits: DAC, AWS, TCG, DGS
  • Pulse Repetition Frequency: 8 to 2000Hz, adjustable
  • 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 with multiple formats: Alpha numeric grid and sequential with auto identifier
  • Download to ElcoMaster® data management software

 Select a transducer


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)

FD700 Mini Flaw Detectors
FD700 Mini Flaw DetectorFD700 Mini Flaw Detectors WaterproofFD700 Mini Flaw Detector in use

Technical Specification

Model & Part Number FD700+& FD700DL+
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

8 readings per second
50 readings per second
10 readings per second
Measuring Range2 Pulse Echo (PE) 0.63 - 2,440mm (0.025 – 96”)
Pulse Echo (single contact) 1.0 - 30,480mm (0.040 - 1200”)
Echo Echo ThruPaint™ (EE)  1.27 - 102mm (0.050 - 4.0”)
Echo Echo (single delay line) 0.178 - 25.4mm (0.007 -1.00”)
Echo Echo (single contact) 1.0 - 3,050mm (0.040 - 120”)
Echo Echo Verify (EEV) 1.27 - 25.4mm (0.050 - 1.0”)
Pulse Echo Temp Comp (PETP) 0.63 - 2,440mm (0.025 – 96”)
Coating Thickness (CT) 0.0127 - 2.54mm (0.0005 - 0.100”)
Pulse Echo Coating Thickness (PECT) 0.63 - 2,440mm (0.025 – 96”)
Pulse Echo Coating Thickness (PECT) 0.01 - 2.54mm (0.001 - 0.100”)
Measurement Accuracy2

0.01mm (0.001")

Measurement Resolution

0.01mm (0.001"), 0.001mm (0.0001")

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 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

Two adjustable square wave pulsers and receivers

Gain manual, automatic gain control (AGC)
with 110dB range with 0.2dB resolution
Timing precision 25MHz TCXO with single shot
100MHz 8bit ultra low power 8 bit digitizer
Data logging • 4GB internal memory
• 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 & wide)
Frequency Bands FD700+ & FD700DL+: Broadband 1.8 - 19 MHz (-3dB).
FD700DL+: Three narrow bands at 2MHz, 5MHz, 10MHz
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
Display 1/4 VGA AMOLED colour display
57.6 x 43.2mm (2.27 x 1.78inch)
viewable area
Display Refresh Rate


Units (selectable) mm or inches
Backlight adjustable brightness
Repeatability / Stability Indicator

Battery Type 3 x AA alkaline
Battery Life

Alkaline (12hrs), Nicad (5hrs), and NI-MH (12hrs)

Low Battery Indicator

Battery Save Mode auto
Size (w x h x d) 63.5 x 165.0 x 31.5mm
(2.5 x 6.5 x 1.24 inches)
Weight (including batteries) 397g (14oz)
Case Design Aluminium case design with gasket sealed end
caps, waterproof membrane keypad
Transducer Connector Type LEMO
USB Interface

Packing List

Elcometer NDT FD700+ or FD700DL+ gauge, couplant, carry case, user manual,

test certificate, 3 x AA batteries, ElcoMaster® software, USB 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 371°C (700°F); 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