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The Extech TKG250 Digital Ultrasonic Thickness Gauge/Datalogger with Color Waveform variable adjustment is in 1dB steps from 20-90dB or Automatic Gain Control (ACG) for waveform.
Common Functions Description
Thickness Range (in Steel) 5MHz probe: 0.040 to 20" (1.0 to 508mm); 10MHz probe: 0.020 to
20” (0.50 to 508mm)
Languages English, French, Spanish, Italian, Czech, German, Portuguese,
Slovak, Finnish, and Hungarian
Hold Mode Holds display to retain last thickness reading with reverse video
display
Freeze Mode Freezes display (ideal for high temperature readings)
Fast Min/Max Mode Displays min or max and actual thickness value at
20 measurements/sec
Units Inches/Millimeters/Microseconds
Alarms Min/Max depth, beeps and display flashes as well as
keypad illumination; TKG150/TK250 also vibrate
Illuminating Keypad F1 = Red, F2 = Yellow, F3 = Green for easy, go/no-go testing
Additional Functions | Model TKG100 | Model TKG150 | Model TKG250 |
Gain - Variable adjustment | — | Low, Standard, High | In 1dB steps from 20-90dB or Automatic Gain Control (ACG) for waveform |
B-Scan - Displays a cross section of the test piece |
— |
Non-Encoded |
Encoded or Non-Encoded - displays with optional encoder |
Echo to Echo | — | Measure the metal thickness only (Paint & coatings do not affect base material thickness value) | |
Differential Mode | — | Displays the difference from the actual thickness measurement and a user entered reference value | |
Velocity Mode | — | Displays acoustic sound speed | |
Datalogger |
— | Records 100K readings in linear, 2D, 3D grid or boiler alphanumeric files, 20 character file name, export to excel via Extech XPorter interface program, also compatible with Ultrapipe. TKG250 also has file compare and grid review features. | |
Range |
— |
— | Adjustment of manual range control or auto zoom tracking to center echoes independent of selected range |
Rectification Modes | — | — | RF, Half Wave Positive, Half Wave Negative and Full Wave Rectification |
Live Waveform (A-Scan) |
— |
— | Full adjustments for gain in 1dB step or AGC, main bang blank, blank after first received echo, range including zoom auto tracking to center echoes independent of material and rectification |
Battery Life | Up to 50 hrs (20hrs w/backlighting) | Up to 50 hrs (20hrs w/backlighting) | 8 to 14hrs (depends on operating conditions) |
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