UltrasonicMeasure theMeasure
the thickness
thickness ofof materials
materials
such asas metal,
metal, glass,glass, plastic,
plastic,
suchceramic andand epoxy
epoxy
ceramic
One device covers a 0.8- 300 mm
measurement range
0.01 mm display resolution(display can switch between 0.01/0.1mm)

Equipped with scan mode formeasuring minimum thickness range
Three types of probes can be used tosuit your needs
Measurement through paint is possible(Optional probe AD-3255-04 is used)

With Echo-echo mode, the thickness of an object
excluding paints and coatings can be measured.
When coating thickness is less than 1 mm and the ratio of coating thickness
to measurement target thickness is greater than 1:8, the thickness of the measurement target
can be measured automatically excluding the coating. However, this function does not work withcertain coatings or measurement targets. Additionally, coating thickness cannot be measured.

Measuring Unit Specifications
Measurement method
Measurement unit
Measurement frequency
Measurement Pulse-echo mode
range

Ultrasonic pulse reflec on methodmmSingle point mode: 7 mes per second, scan mode: 16 mes per secondAD-3255-02 7 MHz probe (standard probe): 0.8 to 200.0 mm
AD-3255-03 5 MHz probe (op onal): 1.0 to 300.0 mm
AD-3255-04 5 MHz probe (op onal): 2.0 to 300.0 mm
Echo-echo mode
AD-3255-04 5 MHz probe (op onal): 4.0 to 30.0 mm ( measurement through paint)± 0.1 mm ± 0.5% (measurement range 0.8 to 50.0 mm)
Measurement accuracy± 0.1 mm ± 1.5% (measurement range 50.1 to 300.0 mm)
Accuracy guaranteed temperature range 5 to 40 ℃
Sound velocity variable range
1000 to 9999 m/s
Display range
0.65 to 600.0 mm
Display resolu on
0.01 mm/0.1 mm (display resolu on is 0.1 mm past 200.1 mm)
Metal, glass, plas c, etc.
Measurable materials
Measurability and accuracy depend on and are eﬀected by the surface of the target.

General Specifications
Display
Power supply/ba ery life
Auto power oﬀ func on
Ba ery capacity indicator
Opera ng temperature/humidity range
Storage temperature/humidity range
Dimensions/weight

Segment LCD display (with backlight)
2 AA alkaline ba eries/30 hour con nuous opera on (25 ℃, with backlight oﬀ, 4 mm measurement)
A er 5 minutes of inac vity, the display will blink for 20 seconds then shut oﬀ automa cally.
When ba ery charge is low the ba ery mark will blink.
0 to 50 ℃, 85% RH or less (no condensa on)-10 to +55 ℃, 85% RH or less (no condensa on)
73 (W) × 143 (H) × 32 (D) mm/approx. 160 g (without ba ery)Accessories

1 AD-3255-02 7 MHz probe (standard probe), 1 AD-3255-01 4 mm equivalent test piece,
1 carrying case, 1 strap, 1 empty bo le for contact medium, 1 instruc on manualUltrasonic
Probe zero point can be calibrated. 4 mm equivalent test piece included
Probes can be exchanged
Sound velocity calibration is possible
Single point and two-point calibration as well as numerical input calibration are possible,
conﬁguration and calibration data are recorded

Coupling status displayed for contact status confirmation
Low battery display
Auto power off
Backlight for use in dark environments

Options and accessories
4.00 mm equivalenttest piece (with strap)

7 MHz probe(standard probe)

5 MHz probe

5 MHz probe

Probe Specifications
Frequency
Transducer diameter
Measurement Pulse-echo mode
range
Echo-echo mode
Cable length
Applica ons
Minimum measurable pipe

7 MHz6 mm
0.8 to 200.0 mm--Approx. 85 cm
Thin material, tube walls, curved surfaces.
Pulse-echo mode

5 MHz
10 mm
1.0 to 300.0 mm--Approx. 85 cm

5 MHz
10 mm
2 to 300.0 mm
4 to 30.0 mm
Approx. 115 cm

Thick material.
Pulse-echo mode

Thick material. Pulse-echo mode
Through paint. Echo-echo mode

Diameter 15× wall thickness 2.0(mm) Diameter 20 × wall thickness 3.0 (mm) Diameter

20 × wall thickness 3.0 (mm)When coating thickness is less than 1 mm and the ratio of coating thickness to measurement target thickness
is greater than 1: 8, the thickness of the measurement target can be measured automatically excluding the coating.
However, this function does not work with certain coatings or measurement targets. Additionally, coating thickness
cannot be measured.

Attention to Safety!

For proper use, read the instruction manuals carefully before

Appearance and/or specifications subject to change or improvement without notice.
Contents of this catalog last updated August 2016.
AD3255-ADCC-01-AD1-17602GP