Advanced ultrasonic thickness gauge MiniTest 440, ElektroPhysik

MiniTest 440 is the most advanced model in the MiniTest 400 series of ultrasonic thickness gauges. Designed for professionals in industries requiring high-precision thickness measurements, this device integrates a range of advanced features that enhance accuracy, usability, and adaptability across various materials and environments.

MiniTest 440 is the most advanced model in the MiniTest 400 series, offering high-precision thickness measurement with an extended range of features. It supports pulse-echo (P-E) mode (0.65–500 mm) and echo-echo (E-E) mode (3–25 mm) for measuring through coatings.

• Measurement Range: 0.65–500 mm (Pulse-Echo), 3–25 mm (Echo-Echo)
• Display: High-resolution, 128 x 64 pixels, backlit
• Measurement Modes: Standard, Minimum, Differential, Alarm, Scan
• Data Storage: 10 batches, 500 values per batch
• USB Data Transfer: Available (MiniTest 430, 440)
• Automatic Transducer Recognition: Yes
• Battery Life: 64 hours (2 x AA batteries)
• Operating Temperature: -20°C to 50°C
• Weight: 190g
• Applications: Aerospace, manufacturing, shipbuilding, power plants
• Included in Package: Device, U5.0E transducer, protective cover, coupling gel, batteries, data cable, software

The 128 x 64 pixel backlit display ensures clear readability, while multiple measurement modes—including minimum, differential, alarm, and scan—enhance usability. The device automatically recognizes transducers and supports USB data transfer, storing up to 10 batches of 500 values each.

Advanced ultrasonic thickness gauge MiniTest 440
for Precise and Reliable Measurements

It operates in -20°C to 50°C, weighs 190g, and runs 64 hours on two AA batteries. Applications include aerospace, manufacturing, shipbuilding, and power plants. The package includes the MiniTest 440, U5.0E transducer, protective cover, coupling gel, batteries, data cable, and software.

• Echo-Echo Mode: Unlike the MiniTest 420 and 430, the MiniTest 440 includes an echo-echo (E-E) measuring mode, allowing for precise measurements through coatings and paint layers. This eliminates the need for stripping protective layers before testing, making it especially useful for corrosion analysis and maintenance applications.
• Measurement Range: The gauge operates within an extensive measurement range:
  • Pulse-Echo Mode (P-E): 0.65 mm to 500 mm (depending on the transducer used)
  • Echo-Echo Mode (E-E): 3 mm to 25 mm
• High-Resolution Display: A 128 x 64 pixel backlit display ensures clear readability in various lighting conditions, showing real-time data such as measurement values, transducer type, and battery status.
• Multiple Measurement Modes:
  • Standard Mode: Displays real-time thickness readings.
  • Minimum Mode: Continuously scans for and displays the thinnest measured point, ideal for detecting material wear or corrosion.
  • Differential Mode: Compares the measured thickness against a preset reference value.
  • Alarm Mode: Provides an optical and acoustic alert when the measurement value exceeds or falls below predefined limits.
  • Scan Mode: Supports high-speed scanning with up to 10 measurements per second, beneficial for rapid surface inspections or high-temperature samples.
• Transducer Compatibility: The MiniTest 440 is compatible with various transducers, including:
  • U5.0E (5 MHz, 3–25 mm in E-E mode, 0.8–300 mm in P-E mode)
  • U5.0 (5 MHz, 0.8–350 mm)
  • U2.0 (2 MHz, 2.0–500 mm, suitable for rough surfaces like cast steel)
  • U7.5 (7.5 MHz, 0.65–50 mm, ideal for thin walls and small radii)
  • U10.0 (10 MHz, 0.65–20 mm, designed for small objects)
  • U5.0HT (5 MHz, 3.0–200 mm, high-temperature probe for materials up to 350°C)
• Automatic Transducer Recognition: The MiniTest 440 detects and calibrates transducers automatically, eliminating the need for manual recalibration when switching between different probes.
• Data Storage and Transfer: Capable of storing up to 10 batches of 500 measurement values each, the device supports data transfer via USB, allowing seamless integration into digital workflows.
• Durability and Portability:
  • Compact Size: 130 x 73 x 24 mm
  • Lightweight: Weighs approximately 190g
  • Temperature Resilience: Operates between -20°C to 50°C, ensuring usability in extreme environments.
  • Long Battery Life: Powered by two AA batteries, providing up to 64 hours of continuous operation.

Applications

The MiniTest 440 is widely used in industries where non-destructive thickness measurement is critical, including:

• Aerospace & Automotive: Inspecting structural components, detecting corrosion in metal parts, and verifying material thickness.
• Oil & Gas Pipelines: Measuring wall thickness of pipelines without removing protective coatings.
• Manufacturing & Quality Control: Ensuring the correct material thickness in production processes.
• Shipbuilding & Marine Maintenance: Checking hull integrity and detecting corrosion in submerged structures.
• Power Plants & High-Temperature Environments: Using the high-temperature probe (U5.0HT) to assess materials exposed to extreme heat.

Supply Package

When purchasing the MiniTest 440, the following components are included:

• MiniTest 440 device
• U5.0E standard transducer
• Protective rubber cover
• 200 ml coupling gel (anti-corrosion agent)
• Operating instructions (German/English, French in preparation)
• 2 x AA batteries
• Data transmission cable and software (for data transfer to PC)
• Plastic carrying case
• Optional: Calibration block (available separately for on-site calibration)

Why Choose the MiniTest 440?

Among the MiniTest 400 series, the MiniTest 440 stands out due to its extended functionality, high measurement precision, and ability to measure through coatings using the Echo-Echo mode. This model is ideal for professionals needing detailed, repeatable measurements without surface preparation.

Reducing downtime and increasing efficiency. Its user-friendly interface, automatic probe detection, and robust construction make it a versatile tool for a wide range of industrial applications.

For those seeking a reliable, advanced ultrasonic thickness gauge, the MiniTest 440 provides a comprehensive solution with features tailored to high-precision thickness measurement requirements.

Comparison of MiniTest Models

Below is a comparison of the three models in the MiniTest 400 series. The MiniTest 420 is a basic model designed for standard measurements, while the MiniTest 430 includes additional features such as data storage and USB transfer. The MiniTest 440 is the most advanced, supporting Echo-Echo mode for measurements through coatings.