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.
Units: English (in), Metric (mm), or Time (µs).
Probe Zero: 0–999.999 µs.
Velocity: 615 & 625 0.0393 to 0.3937 in/µs (1000–9999m/s). 635 & 638 0.0100 in/µs (256 to 16000 m/s.
Test Range: 615 & 625 0 - 0.2in (5mm) up to 0 - 400in (10,000mm) at steel velocity. Variable in sequence, 0.4in or 0.04in (10mm or 1mm). 635 & 638 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: 615 & 625 Start & Width adjustable over full range. Amplitude 0 -100%, 0.5% steps. Visual & audible alarms. Single gate positive trigger, and two gates positive and negative triggering. Gate 2 has selectable 0.6 second delay on alarm. 635 & 638 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: 635 & 638 Selectable 0.6 sec delay on gate 2 negative monitor.
Measurement Modes:
Signal Monitor - 635 & 638.
Depth - Depth and amplitude of signal in gate.
Echo Echo - Echo-Echo distance, automatic gate 2 position.
Gate to Gate - 625 Echo-Echo , manual gate 2 position. 635 & 638 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: 615 & 625 200 volt peak amplitude, rise/fall time < 10ns into 50ohm. 635 & 638 100V - 350V (450V 638 ) square wave pulser. Pulse width from spike to 2000ns duration - rise/fall times < 5ns into 50 ohms.
Pulser Width: 615 fixed at 100ns. 625 30-250ns linked to filter band. 635 & 638 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.: 615 & 625 Selectable 35 to 1000Hz (635 & 638 5000Hz), 5Hz steps.
Screen Update Rate: 50 or 60Hz.
Rectification: Full wave, positive or negative half wave and unrectified RF.
Delay: 615 & 625 0 - 400 in (10,000mm) 635 & 638 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: 615 4Broadband 1 - 10 MHz (-6dB). 625 4 Narrow Bands centered at 1MHz, 2MHz, 5MHz, & broadband 1.5–15MHz. 635 & 638 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: 615 & 625 50% suppressive reject. LED warning when selected. 635 & 638 80% linear reject.
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.
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: 625, 635 & 638 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.
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.
USB Connection: 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 with
BNC or LEMO 1 connectors (factory option).
Warranty: 2 year limited
Additional 638 Features
Interface trigger: Interface gate locks to surface echo and eliminates water path variation.
High Power Pulser: 450 volt boost.
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Features
Transflective Color TFT Display
