AND AD-3255 Ultrasonic Thickness Gage

AND AD-3255 Ultrasonic Thickness Gage

AD-3255 Ultrasonic Thickness Gage

Detailed Description & Specifications

The AD-3255 is a versatile, high-precision handheld ultrasonic thickness gage designed for non-destructive testing across a wide range of materials. Utilizing the ultrasonic pulse reflection method, it delivers accurate thickness measurements from as little as 0.8 mm up to 300 mm. With its compact, portable design, multiple probe options, and advanced features like echo-echo mode for measuring through coatings, the AD-3255 is an essential tool for maintenance, manufacturing, and quality control inspections in various industries.

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Key Features & Capabilities

• Wide Material Compatibility: Accurately measures the thickness of metals, glass, plastics, ceramics, epoxy, and more.

• High Precision & Resolution: Offers a high display resolution of 0.01 mm (below 200.1 mm) for detailed measurements, with the ability to switch to 0.1 mm resolution.

• Dual Measurement Modes:

  • Single Point Mode: For standard spot-check measurements at a rate of 7 times per second.

  • Scan Mode: For rapid minimum thickness surveying at a faster rate of 16 times per second.

• Interchangeable Probe System: Three different frequency probes are available to match specific application needs and measurement ranges.

• Echo-Echo Mode (with optional probe): Allows measurement of base material thickness while ignoring the thickness of paint, coatings, or platings, using the optional AD-3255-04 probe.

• Advanced Calibration Options: Supports multiple sound velocity calibration methods, including single-point, two-point, and direct numerical input (1000 to 9999 m/s). Calibration data is stored for repeatable accuracy.

• User-Friendly Operation: Features a segment LCD with backlight, a coupling indicator to confirm proper probe contact, and an auto power-off function to conserve battery life.

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Technical Specifications

Model: AD-3255 Ultrasonic Thickness Gage

Measurement Specifications

• Measurement Method: Ultrasonic Pulse Reflection Method

• Measurement Unit: mm

• Measurement Frequency:

  • Single Point Mode: 7 times/second

  • Scan Mode: 16 times/second

• Display Range: 0.65 to 600.0 mm

• Display Resolution: 0.01 mm / 0.1 mm (Resolution is 0.1 mm past 200.1 mm)

Probe Specifications & Measurement Ranges

• Standard Probe (AD-3255-02, 7 MHz): 0.8 to 200.0 mm

• Optional Probe (AD-3255-03, 5 MHz): 1.0 to 300.0 mm

• Optional Probe (AD-3255-04, 5 MHz): 2.0 to 300.0 mm

• Echo-Echo Mode (AD-3255-04 only): 4.0 to 30.0 mm (± measurement through paint)

Accuracy & Calibration

• Measurement Accuracy:

  • ±(0.1 mm + 0.5% of reading) for 0.8 to 50.0 mm range

  • ±(0.1 mm + 1.5% of reading) for 50.1 to 300.0 mm range

• Accuracy Guaranteed Temperature Range: 5 to 40 °C

• Sound Velocity Variable Range: 1000 to 9999 m/s

• Calibration Test Piece: 4 mm equivalent test piece included (AD-3255-01)

General Specifications

• Display: Segment LCD with Backlight

• Power Supply: 2 x AA Alkaline Batteries

• Battery Life: Approx. 30 hours continuous operation (at 25°C, backlight off, measuring 4 mm steel)

• Auto Power Off: Activates after 5 minutes of inactivity

• Operating Environment: 0 to 50 °C, 85% RH or less (no condensation)

• Storage Environment: -10 to +55 °C, 85% RH or less (no condensation)

• Dimensions (W x H x D): 73 x 143 x 32 mm

• Weight: Approx. 160 g (without batteries)

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Standard Accessories

• AD-3255-02 7 MHz Probe (Standard)

• AD-3255-01 4 mm Equivalent Test Piece

• Carrying Case

• Wrist Strap

• Empty Bottle for Contact Medium

• Instruction Manual