Contact
Phone:
+31 (0)53 8200245
Email :
sales@checkline.eu
The DFX7 is both, an Ultrasonic Flaw detector, as well as an Ultrasonic A/B Scan Thickness Gauge, in a single unit.
Thickness Gauges are specifically setup to very accurately measure thickness, locate pits, flaws and blind surface corrosion. All the linearity tables, correction curves for various types of longitudinal transducers and features are built with dimensional thickness as its primary focus.
Flaw detectors are designed to detect, size, position, and differentiate between flaw types in various materials and welded joints. A flaw detector must be fast, in terms of its sample and screen refresh rate, as inspectors are generally scanning the surface of a part or test specimen at a relatively high speed, rather than looking for the thickness at a specific point or location. While flaw detectors can also measure material thickness with reasonable accuracy, they are not designed with precision thickness as their primary focus.
The DFX7 combines the two types of gauges into one powerful and full featured instrument, that’s equipped with a number of comprehensive toolkits to provide the user the arsenal necessary to address a number of common field applications.
The DFX7 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 DFX7 is capable of measuring the thickness of various materials with accuracy as high as ± 0.01 millimeters, or ± 0.001 inches. 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.
There are two versions of the DFX7 series: DFX7 and DFX7+ .
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| GENERAL | ----------------------------------------------------- |
| Size: | 63.5 x 165 x 31.5mm |
| Weight: | 400 gr. with batteries |
| Case: | Extruded aluminum body with nickel plated aluminum end caps (gasket sealed) |
| Display: | 1/4 VGA AMOLED color display (320 x 240 pixels). Viewable area 43.2 x 57.6 mm. 16 color pallete, 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 |
| Timing: | Precision 25MHz TCXO with single shot 100 MHz 8 bit ultra low power digitizer |
| Measurement 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 |
| Operating Temperature: | -10 °C to 60 °C |
| Environmental: | Meets IP65 requirements |
| Warranty: | 2 year limited |
| CALIBRATION | ----------------------------------------------------- |
| Automatic Calibration: | Longitudinal (straight), or Shear (angle) |
| Probe Types: | Single Contact, Dual, Delay, and Angle |
| Units: | English (in), Metric (mm), or Time (s) |
| Velocity: | 256–16,000 m/s |
| Test Range: | 7,11 mm minimum, to 30,48 cm maximum at steel velocity. Continuously variable |
| Zero Offset (Probe Zero): | 0–999.999 ìs |
| Material Velocity Table: | Contains longitudinal and shear velocities for a variety of material types |
| PULSER | ----------------------------------------------------- |
| Pulser Type: | Two adjustable square wave pulsers and receivers |
| P.R.F.: | 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 (spike, thin or wide) |
| RECEIVER | ----------------------------------------------------- |
| Gain: | 0 to 110dB with 0.2dB resolution. Manual and AGC control |
| Damping: | 50, 75, 100, 300, 600, & 1500 ohms |
| Frequency Bands: | DFX7 & 7+: Broadband 1.8 – 19 MHz (-3dB). DFX-7+: Three narrow bands centered 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 - 253,75cm at steel velocity |
| MEMORY | ----------------------------------------------------- |
| Log Formats: | Grid (Alpha Numeric), or Sequential (Auto Identifier) |
| Graphics On: | 8,000 readings, A/B Scan image, & all gauge settings for every reading |
| Graphics Off: | 210,000 readings (coating, material, min & max. (Thickness gauge only) |
| Custom Setups: | 64 user configurations |
| POWER SOURCE | ----------------------------------------------------- |
| Battery: | 3x 1.5V alkaline, 1.2V AA Nicad cells, 1.2V AA NI-MH, or other other equivalent power source |
| Battery life (continuous use): | Alkaline (12hrs), Nicad (5hrs), and NI-MH (12hrs), with default settings |
| CONNECTIONS | ----------------------------------------------------- |
| Output: | RS232 serial interface. PC software & USB converter cable included |
| Transducer Connectors: | Two LEMO 00 connectors |
| CERTIFICATION | ----------------------------------------------------- |
| Thickness Gauge: | Factory calibration traceable to NIST & MIL-STD-45662A |
| Flaw Detector: | EN12668-1 compliant |
Kit Includes:
