Product Catalogue/Brochure

Flaw Detector / Thickness Gauge - DFX-7 Series

The Flaw Detector / Thickness Gauge - DFX-7 Series is both, an ultrasonic thickness gauge, as well as a flaw detector. The Flaw Detector / Thickness Gauge - DFX-7 Series has the ability to simultaneously measure coatings and material thicknesses while maintaining the ability to locate pits, flaws and defects in the material. Based on the same operating principles as SONAR, the Flaw Detector / Thickness Gauge - DFX-7 Series is capable of measuring the thickness of various materials with accuracy as high as ± 0.001 inches, or ± 0.01 millimeters. The principle advantage of ultrasonic measurement over traditional methods is that ultrasonic measurements can be performed with access to only one side of the material being measured.

Specifications of Flaw Detector / Thickness Gauge - DFX-7 Series:

Physical Weight:
14 ounces (.397kgs), with batteries

2.5W x 6.5H x 1.24D in
(63.5 x 165 x 31.5mm).

Operating Temperature:
-20 to 120F (-30 to 50C)

Extruded aluminum body with nickel plated aluminum end caps (gasket sealed).

1/4 VGA AMOLED color display (320 x 240 pixels). Viewable area 1.7 x 2.27 in (43.2 x 57.6 mm). 16 color palette, multiple color options, and variable brightness.

Screen Refresh Rate:
Selectable 60 or 120Hz.

Display Views:
Flaw Detector: Full wave, +/- Rectified, or RF. Thickness Gauge: Digits, +/- Rectified, RF, or B-Scan.

Precision 25MHz TCXO with single shot 100 MHz 8 bit ultra low power digitizer.

Measuring Gates:
Two independent gates (Flaw), and three gates (thickness).

Start & width adjustable over full range. Amplitude 5-95%, 1% steps.

Positive or negative triggering for each gate with audible and visual alarms.

Automatic Calibration:
Longitudinal (straight), or Shear (angle).

Probe Types:
Single Contact, Dual, Delay, and Angle.

(in), Metric (mm), or Time (μs).

0.0100 to .6300 in/μs (256–16,000 m/s).

Test Range:
0 to 0.280in (7.11mm) minimum, to 1200in (30,480mm) maximum at steel velocity. Continuously variable.

Zero Offset (Probe Zero):
0–999.999 μs.

Material Velocity Table:
longitudinal and shear velocities for a variety of material types.

0 to 110dB with 0.2dB resolution. Manual and AGC control. Damping: 50, 75, 100, 300, 600, & 1500 ohms

Frequency Bands:
DFX-7 & 7+: Broadband 1.8 - 19 MHz (-3dB). DFX-7+: 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.

0 - 999in (25,375mm) at steel velocity.

Pulser Type:
Two adjustable square wave pulsers and receivers.

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

Pulser Voltage:
200 volt peak amplitude, rise/fall time < 10ns into 50ohm.

Pulse Width:
40 to 400 ns. Selectable step options 40, 80 & 400 ns (labeled spike, thin & wide).

Three 1.5V alkaline, 1.2V AA Nicad cells, 1.2V AA NI-MH, or other other equivalent power source.

Battery life (continuous use):
Alkaline (12 hrs), Nicad (5hrs), and NI-MH (12hrs), with default settings.

RS232 serial interface. PC software & USB converter cable included.

Transducer Connectors:
Two LEMO 00 connectors.

For more information about Flaw Detector / Thickness Gauge - DFX-7, please call us at 1.877.884.8378 or Click the button below.