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    Handheld Ultrasonic Pipe Thickness Gauge, Through Coating

    Handheld ultrasonic thickness gauge, 1mm~100mm measuring range with standard probe, 0.1mm or 0.001 inches resolution, 1000~9999m/s (0.0394 to 0.3937in/μs) material velocity range, LCD dislpay with backlight, able to storage 500 thickness readings. Portable ultrasonic thickness tester, easy to use, designed to measure the thickness loss of pipes after corrosion, also available with through paint coating function.
    SKU: ATO-UM-1
    Free Shipping Worldwide
    Delivery date: 6-20 days

    The ultrasonic thickness gauge is the thickness testing equipment that can measure the thickness of various materials such as metal materials, high temperature pipes, pipes, steel plates, aluminum plates, plastics, iron pipes, PVC pipes, glass, etc. It can be widely applied for these material testing in the fields like manufacturing, metal processing, chemical industry, commodity inspection, etc. This series of ultrasonic thickness gauge is extremely suitable for measuring the thickness loss of pipes and pressure vessels after corrosion. The ultrasonic thickness gauge is a most suitable instrument for material protection.


    • 0.1mm or 0.001 inches resolution
    • Measuring range: 0.8~300mm
    • 128*64 pixels display with backlit
    • Can store 500 thickness readings
    • Hi-Low alarm setting
    • Minimum thickness capture
    • V-sound path correction
    • With through paint/coating function (ATO-UM-1D only)


    Model ATO-UM-1 ATO-UM-1D
    Display Type 128 ×64 dot-matrix LCD screen with EL backlight
    Operating Principle P-E (pulse-echo) with dual-crystal probe P-E (pulse-echo), E-E (Echo-Echo) with dual-crystal probe
    Total Measuring Range 0.8mm-300mm, depending on material and probe
    Measuring Range in Standard Mode Standard Probe PT-08: 0.8mm-100mm
    Measuring Range in Thru Coating Mode N/A 3-20mm with PT-08 probe
    Measuring Limits of Tube (Steel) Φ20mm×3.0mm (PT-08 probe)
    The measuring error is up to ± 0.1mm.
    Measuring Error Lower limit to 10mm: ±0.1mm
    10mm to upper limit: ±(1%H+0.1)mm
    Note: H is the actual thickness of the tested material
    Repeatability 0.1mm
    Display Resolution 0.1mm or 0.001 inch
    Units Inch or Millimeter
    Calibration Method Zero calibration, Two-point calibration
    V-Path Correction Automatic
    Update Rate 4Hz
    Material Velocity Range  1000~9999m/s (0.0394 to 0.3937in/μs)
    Memory Function 5 arrays are divided to store 500 thickness values
    Minimum Value Checking Taking the probe to move along the surface of the tested material, the gauge is able to find the thinnest point automatically.
    Warning Function If the measured value exceeds the pre-set thickness limit, the guage will sound an alarm.
    Velocity Storage Can store 5 different materials' velocities in total
    Languages English and Chinese
    Communication Port (Optional) USB port or Serial RS 232 port
    Application Software (Optional) UmView Software for data transmission, storage, analysis and document editing
    Power Supply Two 1.5V AA alkaline batteries (Alarm for low battery voltage)
    Operating Time Up to 200 hours with alkaline batteries (without backlight)
    Instrument Shut-off AUTO OFF after 5 minutes of no operation
    Operating Temperature -10℃ ~ +50℃
    Size 149mm×73mm×32mm (H×W×D)
    Weight 210g including batteries

    * Standard Packing List

    Ultrasonic Thickness Gauge × 1, Standard Probe × 1, Battery × 2, Couplant × 1, Carrying Case × 1, Operating Manual × 1
    (Kindly Reminder: Battery and Couplant is Not Included if Shipped By Air.)
    ** Optional Probes

    Model PT08 PT06 PT04 ZT12 GT12
    Type Standard Small Tube Fingertipe Cast iron High-Temperature
    Frequency 5MHz 7.5MHz 10MHz 2MHz 5MHz
    Diameter 11mm 8mm 6mm 17mm 15mm
    Measuring Range 0.8~100mm 0.8~30mm 0.7~12mm 4.0~508mm 4.0~80mm
    Allowable Temperature -10℃ ~ 70℃ -10℃ ~ 70℃ -10℃ ~ 70℃ -10℃ ~ 70℃ -20℃ ~ 450℃
    Picture ultrasonic thickness gauge PT08 probe ultrasonic thickness gauge PT06 probe ultrasonic thickness gauge PT04 probe ultrasonic thickness gauge ZT12 probe ultrasonic thickness gauge GT12 probe

    Function Comparison

    Model ATO-UM-1 ATO-UM-1D ATO-UM-2 ATO-UM-2D
    Operating Principle P-E (pulse-echo) P-E (pulse-echo), E-E (Echo-Echo) P-E (pulse-echo) P-E (pulse-echo), E-E (Echo-Echo)
    Measuring Range in Standard Mode 0.8mm-300mm, depending on material and probe
    Measuring Range in Thru Coating Mode N/A 3-20mm N/A 3-20mm
    Measuring Resolution 0.1mm, 0.001 inch 0.1mm, 0.001 inch 0.01mm, 0.0001 inch 0.01mm, 0.0001 inch
    Probe Compensation Line 1 built-in probe compensation line 1 built-in probe compensation line 7 built-in probe compensation line 7 built-in probe compensation line
    Data Logger Y Y Y Y

    Tips: Measurement Method of Ultrasound Thickness Gauge

    1. Single-point measurement method
    It means that the ultrasound thickness gauge is used to measure any point of the measured material with a probe, and the display value is the thickness value.

    2. Two-point measurement method
    The ultrasound thickness meter is used to make two measurement at the same point of the measured material with a probe. In the second measurement, the probe's split surface is 90 degrees, and the smaller value in the two measurements is the thickness value.

    3. Multi-point measurement method
    When the measurement value is unstable, takes a measuring point as the center and makes multiple measurements in a circle with a diameter of about 30 mm. The minimum value is the thickness value.

    4. Continuous measurement method
    It uses single-point measurement method to measure continuously along a designated line with an interval of not less than 5 mm. The minimum value is the thickness value.

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