Extech TKG250 Digital Ultrasonic Thickness Gauge/Datalogger with Color Waveform

Item #:

EXT-TKG250

Brand:

Extech

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Description

TKG250 Digital Ultrasonic Thickness Gauge/Datalogger with Color Waveform by Extech

Extech offers Thickness Gauges designed in compact, handheld, rugged housing ideal for field use. The ultrasonic technology allows for non-destructive thickness measurements for primarily steel structures. Select models with digital thickness readout or live color waveform and datalogging function.

Features

Wide measurement range: 5MHz probe: 0.040" to 20" of steel; 10MHz probe: 0.020" to 20" of steel (optional)
Sunlight readable dot-matrix display with backlight
Multiple transducer options for high temperature and difficult to measure materials
Fast minimum feature to capture minimum thicknesses
On screen display of 8 languages
Splash-proof (IP54), high impact, compact housing
Color LCD display shows red, yellow and green visual alarm indication
Live Waveform (A-scan for thickness verification)
File compare feature as a real time corrosion monitor
Dynamic change of waveform color on alarm
Grid review of saved readings
Echo to Echo option to ignore coatings
100K internal datalogger with export to Excel
B-scan (visual cross section of test piece)
Vibrating alarm indication

Applications

Boiler Tubes
Pressure Vessels
Storage Tanks
Ship Hulls
Containers
Home Oil Tanks
Pipes
Steam Lines
Compressors
Shafts
Bridge Pins
Bond Inspection

Specifications

Size	5" (127 mm) (L) x 3" (76.2 mm) (W) x 1.25" (31.75 mm) (H)
Weight	8 OZ (.23 kg)
Thickness range	0.008 - 20 inches (0.20 mm - 508 mm), depending on material, temperature and transducer selection
Material velocity calibration range	0.200-0.7362 in/μS (0.508 -18.699 mm/μS)
Temperature	Gauge Operating: -4° F to 122° F (-20° C to 50° C) Surface temperature of material: Depending on probe used, from -5° F to 1000° F (-20° C to 537° C)
Battery life	Up to 50 hours (20 hours with backlight on)
Battery type	2 "AA" Alkaline
Display	220 X 170 Graphics Color TFT with Live Color Waveform
Information displays	LOS, min, max, large reading while displaying min at the same time, velocity, zero, calibration, units, freeze, unfreeze, % battery life remaining, gain - low, std, high, echo-to-echo symbol
Resolution	0.001" (0.01 mm), 0.01" (0.1mm)
Accuracy	Basic Accuracy is 0.004" but on clean smooth steel an accuracy of 0.001" is not uncommon. The more corrosive the environment, and pitted the surface under test, the closer to the 0.004" accuracy one can expect to be. As noted, a higher accuracy can be obtained when measuring on clean smooth steel.
Probe recognition	Via pick list from a menu
Delay line zero measurement	Auto at power up with listed numeric value. Ideal for correcting delay line wear/curvature and for transducer acoustic drift at elevated temperatures
Package	Custom, splash-proof, high-impact plastic with rubber, illuminating keypad for go/no-go testing
Bandwidth	0.5-20 MHz (-3dB)
Units	English/Metric/Microseconds
WaveForm	Live Color Waveform with Dynamic color change on alarm, large thickness reading, super-impose thickness over top right of A-Scan.
Rectify	RF, Full Wave, Half Wave+, Half Wave -
Blanking	Main Bang Blank and Blank After First Received Echo
Gain	Auto or Manual in 1 dB steps for varying test conditions
Echo-to-Echo	used to ignore coatings and measure substrate only
B-Scan	Cross sectional representation of test piece
Measurement rate	4/sec and 20/sec in fast mode
Differential Mode	Displays the difference from the actual thickness measurement and a user entered reference value
Alarms	Minimum/Maximum depth, vibralarm (vibration on alarm-patent pending), beeps and display flashes as well as keypad illumination and dynamic waveform color change
Illuminating keypad	F1 = Red, F2 = Yellow and F3 = Green for easy, go/no-go testing (Patent Pending)
Automatic probe wear indicator ( Transducer attendant)	Automatically informs the operator to replace the transducer (Patent Pending)
Ergonomics	User selectable lefty or righty display changes via keypad (Patent Pending)
Backlight	Light Emitting Diode, On/Off or Auto ON based on valid readings or last key-press
Shut off	Auto, time out (after 1-31 minutes user programmable after no reading, loss or no key press or "never")
Scan mode	Simultaneously Displays minimum or maximum thickness value at 20 measurements per second (ideal for high temperature thickness reading and tracking the minimum depth alarm). Press Freeze to capture last valid minimum thickness readings prior to Loss of Signal (LOS), without reading the couplant upon lifting probe off the test piece
Carrying case	Custom molded pouch with wrist strap for either left-handed or right-handed operators.
Shipping case	Hard plastic with high-density molded cut out for all accessories
Freeze mode	Freezes display (ideal for high temp. measurements)
Hold mode	Holds display to retain last thickness reading in reverse video display
Included materials	Ultrasonic thickness gauge, DK-537potted, 5 MHz 0.375 inch diameter, operational manual, USB cable, couplant, protective pouch, transport case, data XL interface program.