Ultrasonic Flaw Detector NOVOTEST UD3701


Ultrasonic Flaw Detector NOVOTEST UD3701 is designed to detect defects, such as discontinuity and heterogeneity in objects, weld joints quality, to measure the depth and position of flaws, thickness measurements, measurements of velocity and attenuation of ultrasonic waves for different materials.
Ultrasonic Flaw Detector NOVOTEST UD3701 has large 7 inch touch screen display and powerful, lightweight, portable and ergonomic impact-resistant metal casing, and is the best choice for expert ultrasonic testing. Ultrasonic Flaw Detector NOVOTEST UD3701 allows user to measure the thickness of products with hight accuracy, the signal can be viewed in the form of A-scan and B-scans and has all the features of the full testing documentation.


  • Frequency range with continuously adjustable from 0.2 to 10MHz
  • Two independently controlled gate (A and B)
  • Automatic or manual construction of the TCG curve (32 points)
  • Two types of representations of signals: detection and radio
  • Build and handling A, B scans
  • Modes: envelope, freeze and display of the beam


The range of measured depth (steel), mm6000
The range of gain control100 dB in 0.1 dB
Temporary adjustment of gain (TCG)range up to 70 dB, with the construction of the curve with 32 control points entered manually or from the control reflectors
The control zonetwo independent zones, start and change the width of the entire range of sweep
Interrogatorcustomizable, with an amplitude of 350 V, with a variable length from 12.5 to 500 ns, 12.5 ns increments
Memoryconfiguration with A-scan (B-scans), limited the size of SD-card
control protocols (signal envelope, the measurement, the parameters of the device, date, time and name of the protocol), limited the size of SD-card
InterfaceBluetooth, SD-card

Detailed specifications of Ultrasonic Flaw Detector NOVOTEST UD3701 
min .: 0 – 6 μs
max .: 0 – 1000 μs
step – 25 ns

from 0 μs to 1000 μs
step – 25 ns

MAX length of tested material
up to 6000 mm (echo mode)

Velocity range
1000 – 9999 m/s

Exposition in the prism
0 – 100 μs
step – 25 ns

50 Ohm

Input impedance
50 Ohm / 600 Ohm

Probes pulse
RF pulse with amplitude of 100, 200 or 300V,
With variable length from 25 to 500 ns,
step – 25 ns

Repetition frequency of SP
automatically controlled from 10 to 100Hz

Wideband 0.4-20 MHz (-6 dB)

Gain control range
115 dB, step – 1 dB

Time control gain (TCG)
range up to 70 dB, 12 dB / μs
with the construction of the curve through 16 reference points,
entered by hand or by the control reflectors

Amplitude-Distance curve
drawing through 16 points, height adjustable

positive or negative half-wave,
complete, the radio signal (at all range of scan), B-scan

compensated, 0 – 90% of screen height

Zone control
two independents areas, the beginning and width are change at all scan range; levels of limits are set from 0 to 100% of display height; individual logic of detection defects.

Automatic Alarm of defects
light logic of detection defect in zone for each zone individually and sound individual logic detection defect at the zone

Time intervals measurement
from 0 to a first signal in the zone or between
signals in the zones to the front or to the maximum signal

Measurement of amplitude
in dB relative to threshold level in the zone;
in dB relative to the reference signal;
in dB relative to the amplitude-distance curve.

Colored, TFT 320 x 240 pixels 135 x 100 mm.

Limited of SD cards capacity

USB, Bluetooth (optional)

Connectors of probes
2 Lemo

Li-on 4-7 a / h

Battery life
up to 10 hours with the battery 4000 a / h
up to 24 hours with the battery 6600 a / h (optional)

External power supply
power supply 220V, 50Hz AC

Supply voltage
15V 2A

Operating temperature range
from -30º C to + 55 ° C

Dimensions (H x W x L)
140 mm x 210 mm x 55 mm with standard battery (4000 a / h)
140 mm x 210 mm x 85 mm with the battery 6600 a / h (optional)

1.7 kg with standard battery (4000 a / h)
2.7 kg with battery 6600 a / h (option)

Available Option

  • Additional UT-probes
  • Additional cables Lemo-Lemo
  • Charger
  • Bag for comfortable operating
  • Calibration blocks

Standard Packages

  • Ultrasonic flaw detector
  • UT-probes – 2 pcs
  • Cable Lemo-Lemo
  • Power supply and charger
  • Memory card
  • Operating manual
  • Case


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