Flaw detectors DFX-635

• Size:9.25 x 7.13 x 4.0 in (235 x 181 x 102mm)
• Weight:7.5lbs. (3,4Kgs) with Li-Ion cells.
• Case: Extruded Aluminum.
• Display: Transflective TFT Color. Display area: 4.39″ x 3.29″ (111.4 x 83.5mm) 320 x 240 pixels. A-Scan area: 255 x 200 pixels (315 x 200 expanded), 8 color options and variable brightness.
• Temperature:Operating -10 to +55°C or 14 to 131°F
  -20 to +70°C or -4 to 158°F(survivable) Storage -40 to +75°C or -40 to 167°F
• Environmental: Meets IP65 requirements.

SPECIFICATIONS

• Units: English (in), Metric (mm), or Time (µs).
• Probe Zero: 0-999.999 µs.
• Velocity: 0.0100 in/µs (256 to 16000 m/s.
• Test Range: 0 – 0.05in (1mm) up to 0 – 800in (20,000mm) at steel velocity. Variable in 1, 2, 5 sequence or continuously in 0.05in (1mm) increments. Also from 1 to 5000(µs).
• Test Modes: Pulse-echo and transmit/receive.
• Gates: Two fully independent gates with positive and negative triggering for each gate.Two fully independent gates with positive and negative triggering for each gate.
• Gate Expansion: 635 & 638 Expands range to width of Gate 1.

GATE MONITOR DELAY:

• Selectable 0.6 sec delay on gate 2 negative monitor.

MEASUREMENT MODES:

• Signal Monitor
• Depth – Depth and amplitude of signal in gate.
• Echo Echo – Echo-Echo distance, automatic gate 2 position.
• Gate to Gate – independent gates.
• Trig – Trigonometric display of beam path, depth and surface distance. Calculation of skip depth and curve surface compensation, X-offset for transducer.
• T-Min – Holds minimum thickness in depth mode.

• System Linearity: Vertical = 1% Full Screen Height (FSH) Amplifier Accuracy ±0.1%dB. Horizontal ±0.4% Full Screen Width (FSW).
• Pulser Voltage: 100V – 350V (450V 638 ) square wave pulser. Pulse width from spike to 2000ns duration – rise/fall times < 5ns into 50 ohms.
• Pulser Width: Adjustable in 2% of nominal width, minimum 1ns maximum 40ns.
• ActiveEdge: Unique active pulse control for enhanced near surface resolution and signal response. Replaces traditional damping control.
• P.R.F.: Selectable 35 to 5000Hz, 5Hz steps.
• Screen Update Rate: 50 or 60Hz.
• Rectification: Full wave, positive or negative half wave and unrectified RF.
• Delay:0 – 800in (20,000mm) at steel velocity in 0.02 steps (0.05mm).
• Gain: 0 to 110dB. Adjustable in 0.5, 2, 6, 14 and 20dB steps.Frequency Bands: 6 narrow bands centered at 0.5, 1, 2.25, 5, 10 & 15 MHz. Broad band at 2 to 22 MHz (-6dB) and 1 to 35 MHz (-20dB).Vertical Linearity: 1% full screen height.Amplifier Linearity: +/- 0.1 dB.Horizontal Linearity: +/- 0.4% full screen width (FSW).Reject: 80% linear reject.

MEMORY

• Thickness Logging: Storage for 8000 readings stored in Block/Location/Number coding or alpha-numeric pre-programmed work sheets. Transferable to Excel using optional PC software.
• Panel Memory: 100 storage locations for calibration settings.
• A-Scan Memory: 800 waveforms.

FEATURES

• Wave Smoothing: Produces a smooth signal envelope.
• AGC: Automatic Gain Control sets selected echo to a user defined level (10 – 90%).
• DAC: Up to 10 points may be entered and used to digitally draw a DAC curve. Reference -2, -6, -10, -12, -14 dB curves can be selected for JIS, ASME and EN1714 codes.
• AWS: Automatic defect sizing in accordance with AWS D1.1 Structural Welding Code.

• API: Automatic defect sizing in accordance with API 5UE.
• AVG/DGS: Automatic defect sizing using probe data. 10 probe data sets can be stored.
• TCG: Time corrected gain. 40 dB dynamic range, 30 dB per microsecond, up to 10 points for curve definition.
• Auto-Cal: Provides Automatic calibration with two echoes.
• Reference Waveform: Recalled waveform can be shown in a different color to live waveform for direct comparision.
• Display Freeze: Hold current waveform on screen.
• Peak Memory: For echodynamic pattern determination.
• Online Help: Instant operator guidance on operation accessed from direct key.
• Language Support: Six user selectable languages from: English, German, French, Spanish, Dutch, Italian, Russian, Polish, Czech, Finnish & Hungarian. Others available on request.

POWER SOURCE:

• Battery: Lithium Ion battery pack 14.4V,
• 5.0 Amp hrs. Minimum 11 hours use, typical 15 hours, indication of battery charge. Recharge time 4 hours.Charger: 100 – 240 VAC, 50 – 60Hz.

CONNECTIONS

• USB: For connection to PC, keyboard and printer.
• Outputs: Serial Interface, composite video (NTSC & PAL), analog output for amplitude and distance updated at PRF rate. Transmitter sync output.
• Transducer Connectors: available withBNC or LEMO 1 connectors (factory option).

WARRANTY

• 2 year limited