The most advanced System for Ultrasonic Pulse Velocity in Concrete, Wood, Ceramic and other Coarse grained and Construction Materials.  This test method rapidly  and easily allows the practitioner to locate cracks, voids, rot and other areas of inhomogenity in the material under test.  Complete System includes transducers, instrumentation unit, cables and software for PC.The system conforms to ASTM C - 597( USA ), EN12504-4 (Europe), BS 1881 Part 203 (UK) and other international standards.

- Measuring range: 0 - 3000 µs - accuracy +/- 0,1 µs
- Selection of the ultrasonic pulse amplitude adjustable from 250 to 1000 V
- Measurement of the required time by the ultrasonic pulse to go through the tested material.
- Single or continuous acquisition mode with automatic or manual saving.
- Zero calibration with depuration of the time for the pulse to go through the probes.
- Calibration of a defined time value.
- Capacity of data acquisition, processing and filing of the test data up to 30.000 samples.
- Interface mini USB for PC connection.
- Two outlets for connection to the oscilloscope.
- Languages: English, French, German, Spanish, Italian.
- The use of the instrument is made easy because it is based on the user-friendly system.

The standard appliance includes:
- The instrument in basic configuration in a practical palmer container.
- Two 55kHz probes with connection cables.
- Calibrating cylinder and contact paste.
- Battery rechargeable pack NiMh 4,8V > 2000m/A with low battery condition alarm.
- Anti shock case holding the unit and the accessories.
- External feeder 230V and battery charger 12V 500m/A.

Case dimensions: 400x340x110mm
Weight: 2 kg approx.

V-Meter MK IV™    
Ultrasonic Pulse Velocity System For Finding Voids and Cracks,

The most advanced ultrasonic test system for accurately identifying basic characteristics of coarse grained materials such as concrete, wood, masonry, ceramic, graphite and more!

Applications                           

• Locate Honey Combs and Voids in Concrete

• Locate Cracks in Concrete, Ceramics, Masonry or Stone

• Determine Fire Damage Extent in Concrete or Masonry
• Crack Depth Determination
• Determining Young's Modulus ( with optional Shear Wave Transducers )
• Find Hidden Areas of Rotting Wood

Features & Benefits

• System has a direct digital read-out of transit time, and read out of wave form on daylight display, back lit LCD.
• Rugged and splash resistant case is built for tough construction environments. Portable, and light weight with both rechargeable battery and standard A-C power.
• Includes a signal and trigger output for use with external oscilliscope or other data input device. Digital calibration means no special bar required. Trigger levels and Signal amplification can be digitally adjusted.
• Conforms to ASTM C-597, BS 1881-203 and other international standards
• USB interface for computer control. Veelinx™ software allows complete control of the system as well as data upload to a PC and data analysis.
• Direct reading of calculated P-wave velocity and S-wave velocity. The unit can also calculate modulus of elasticity of material using optional S-Wave Transducers. Direct reading of Poisson's ratio

• A large range of Accessories and Ultrasonic Transducers available. Standard Transducers available from 24KHz to 500 KHz enable the unit to test ceramics, graphite, mass concrete pores, and wood. Exponential Transducers for rough surfaces, as well as underwater transducers are also available. Finally a Pre-Amplifier is available for help with long distances or highly attenuative materials.

Specifications

Standards

• ASTM C-597 - "Standard Test Method for Pulse Velocity Through Concrete"
• BS EN 12504 - 4:2004 ( Formerly BS 1881-203 ) "Determination of Ultrasonic Pulse Velocity"
• ASTM D2845 - 08 "Standard Test Method for Laboratory Determination of Pulse Velocities and Ultrasonic Elastic Constants of Rock"
• ASTM E494 - 10 "Standard Practice for Measuring Ultrasonic Velocity in Materials"
• ACI 228.2 R "Nondestructive Test Methods for Evaluation of Concrete in Structures"
• ISO1920-7 : 2004 "Testing of Concrete -. Part 7:Non-Destructive Tests on Hardened Concrete"
• IS13311 Part 1: "Non - Destructive Testing of Concrete Methods of Test Part 1 - Ultrasonic Pulse Velocity"