USN 60 -


The USN 60 flaw detector series has been optimized for use in direct sunlight and operation at extreme temperatures. These new characteristics make the instruments ideally suited for outdoor use with its increased long battery operation time.

A 6 kHz pulse repetition frequency, real-time analog and TTL outputs makes the USN 60 flaw detectors series ideal for a wide range of automated systems testing applications.

The exclusive SmartView feature displays even the shortest echoes for critical scanning and rotating part inspections. The quality, durability, dependability and ease of use that you have come to expect of Krautkramer’s popular USN Series of instruments remains. From rugged field inspections to high resolution thin measurements, long acoustically clean materials, and immersion systems, the USN 60 flaw detector family extends the range of applications that a portable instrument can perform.

Furthermore the selectable 450V Square Wave Pulser satisfies a wide range of tough-to penetrate applications, such as difficult to penetrate metallic applications and especially non-metals inspection like composite materials.

USN 60 Specification

Range USN 600.040" to 1100" (1 mm to 28 m) at steel velocity;
range selectable in fixed steps or continuously
Range USN 60Lrange is 0.040" to 480" (1 mm to 12 m)
Display Delay-20 to 3498 μs in steel (dependent on range)
Probe Delay/
Zero Offset
0 to 999.9 µs
Damping50, 75, 150, 500 ohms
Gain0 to 110 dB adjustable in selectable steps 0.1, 0.5,
1.0, 2.0, 6.0, user definable, and locked
Test ModesPulse echo, dual, and thru-transmission
PulserSquare wave excitation pulse
Pulse Voltage
(Square wave pulser
50 to 450 V scrollable in 10 V adjustments
Pulse Width (Square
wave pulser mode)
Tunable from 50 to 1000 ns in 10 ns adjustments
Pulse Energy
(Spike mode)
Low, High
Pulse Repetition
Frequency USN 60
Autolow, autohigh, manually adjustable from 15 to
6000 Hz (spike mode) and 15 to 2000 Hz in square
wave mode, in 5 Hz increments, external trigger
(spike mode only)
Pulse Repetition
Frequency USN 60L
Limited to 2000 Hz in both spike and square wave
(amplifier bandpass)
0.25 to 25 MHz with 10 selectable settings including
Gate MonitorsTwo independent flaw gates controllable over entire
sweep range
Measurement ModesZero-to-first, multi-echo with selectable flank or
peak detection
RectificationPositive halfwave, negative halfwave, fullwave, RF
Reject (suppression)0 to 80% linear
UnitsInch, millimeter, or microsecond selectable
-20º to 55ºC (-4º to 130ºF);
-25º to 70ºC (-13º to 158ºF ) storable
LanguagesSelectable English, German, French, Spanish, Italian,
Portuguese, Norwegian, Swedish, Finnish, Danish,
Dutch, Russian, Czech, Romanian, Slovakian
Probe ConnectorsBNC or Lemo selectable at order
KeypadInternational symbols
Battery PowerLithium Ion battery pack;
NiMH, NiCad or alkaline cells substitutable
Battery Life11 hours on Li-Ion battery pack
Size11.1” W x 6.75” H x 6.25” D (282 x 171 x 159 mm)
Display640 x 480 pixels color LCD
132.48 x 99.36 mm
Weight6.6 lbs. (3.0 kg) Li-Ion battery;
3.5 lbs.(1.6 kg) without battery
Color LegEasy identification of leg and skip distances for
angle beam inspection in A-scan or grid
background colors
Weld Rating
Simplifies the rating of weld indications according
to AWS specification D1.1, (formula D=A-B-C)
Warranty2 year conditional warranty on parts and labor;
free 2nd year contingent upon return of unit within
13 months of purchase for recertification
Dust Proof/
DrippingWater Proof
As per IEC 529 specification for IP54 classification
ComplianceEMC/EMI: EN 55011:2007, EN 61000-6-2:2005
Ultrasound: EN 12668, ASTM E317
USN 60 -