KFD-50 / 50X

The KFD -50 Digital Ultrasonic Flaw Detector combines K&M' industry leading conventional flaw detection capabilities with the efficiency of a highly portable, intuitive instrument. The KFD -50 flaw detector's blend of efficient menus and direct access keys allows you to take advantage of the highest quality flaw detection platform with exceptional ease of use.

• Simple to use, quick to operate, from basic to challenging inspection re­quirements.

• From high frequency inspections for thin materials up to low frequency for attenuative materials.

• From automotive, power generation, oil and gas to aerospace applica­tions.

Harsh field and industrial environments

• Extended temperature range from 0℃ to 60 ℃.

• Weighs only 2.0 kg.

• Extended battery life to 12 hours under real test conditions.

Fast and bright color screen

Color brings you many additional ben­efits in your daily inspection job:

• Color display of monitor gates and curves (DAC, TCG, DGS) for direct recognition

• Color coded display of legs for angle beam inspection of welds

Color-coded display of legs in tests using angle-beam probes

• Use of color to display references (A-scan) to make comparisions easy

A-scan comparision

• Colorized envelope curve display for echo dynamic analysis

Envelope curve

• Multicolor screen combinations for operator preferences and to select best suitable color scheme according to the working environment.

New DAC function according to the latest JIS Z3060-2002 specifications

Square Wave Pulser (option)

Selectable and tunable for optimum probe matching to satisfy a wide range of tough-to-penetrate applications.

• For low frequencies, square wave pulsers allow optimum probe matching by adjusting pulse width and voltage.

• Difficult to penetrate metallic applications and especially non- metals inspection like composite materials are optimized.

• Pulse width is tunable up to 1000 ns in 10 ns steps for optimum probe matching and versatility in meeting a wide range of applications.

• Pulser voltage is adjustable from 25 to 500 V in 10 V steps.

DAC functions

Recording reference echoes in DAC mode will be simplified by automatic gain adjustment. The echo to be re­corded will be set automatically at 80 % and stored the dB-difference to the first reference echo can be displayed, if needed. The new JIS-DAC meets the latest JIS Z3060-2002 specifications.

Three different time of flight measurements

Depending an the time of flight mode selected, the distances and amplitudes will be measured and dis­played for the echo in each gate.

Peak: sound path and amplitude at the highest echo in the gate

Flank: sound path at the intersection of the first echo with the gate threshold; amplitude at the highest echo in the gate

JFlank: sound path at the intersection of the first echo with the gate threshold;amplitude at the first echo in the gate

Curved surface correction

Corrects sound path information when using an angle beam transducer to circumferentially inspect a curved surface for either tubular or bar inspections.

Data reporting

200 datasets enable a great number of calibration settings and test results to be stored. Also extended up to 1200 datasets. Each report can be documented with a memo field containing 9 added information for memory and analysis . The report or setting can be uploaded to a computer using an RS-232 or USB (with USB-RS accessory) for saving, reviewing or printing.

Measure readings

Up to 20 measure readings are selected to be displayed on the screen, measure can be carried out instantaneous or behind freeze

Other benefits

We have also implemented innovations from the computer industry in the bat­tery concept to make your daily work easier: the rechargeable lithium-ion battery pack enables you to carry out your inspections for at least 12 hours. Charging is easily carried out internally within the instrument just by connecting the power adapter to the KFD -50. 

Examples for the various applications of the high performance and light K & M KFD -50

Weld inspection in the power genera­tion and petrochemical industries

• Flaw location with display of all coordinates, sound path, (reduced) surface distance, depth position and leg number

• Display of every sound beam reflec­tion (number of half skip distances or legs) and identification of leg color on the "live“ A-scan

• Amplitude evaluation in dB refering to a previously recorded reference echo or according to AWS D1.1

• New powerful DAC/TCG with JIS DAC module according to JIS Z 3060-2002

• DGS evaluation with direct digital ERS readout (option-- for KFD -50X)

Precise thickness measurement for the automobile industry

You can measure the sound path dif­ference precisely at the peaks of an echo sequence with a resolution of 0.01 mm.

Corrosion wall thickness in the power generation and petrochemical sectors

During wall thickness measurement on corroded parts using dual element probes, you simultaneously check the reading together with the A-scan, thus receiving the maximum reliability for the measurement. On hot surfaces you use the auto-freeze function, mini­mizing the probe’s contact time. The minimum capture mode gives you the thinnest measured reading at the end of a continuous scan.

Inspection of forgings in the power generation and aerospace sectors

The automatic setting of the pulse repeti­tion frequency from 20Hz to 1kHz eliminates phantom echoes while inspecting fine grain and large work pieces. Defects from an equivalent reflector size 0.3 mm onwards will be detected.

Inspection of special materials in the aerospace and automobile industry

Use probes down to 250 kHz in order to penetrate highly attenuative or compos­ite materials. Our composite probes on the KFD -50 will drastically improve the signal-to-noise ratio on sound scatter­ing materials (glass or carbon reinforced plastics, composites or alloys).