phase II+ UTG-2800, Manual, Page: 4 / 18

1.2 Main Functions
1) Capable of performing measurements on a wide range of material, including metals, plastic, ceramics,
composites, glass and other ultrasonic wave conductive materials.
2) Optional transducers are available for special applications, including for Rough Surface and High
Temperature applications.
3) Probe-Zero function, Sound-Velocity-Calibration function
4) Two-Point Calibration function.
5) Two work modes: Single point mode and Scan mode.
6) Coupling status indicator showing the contact status.
7) Battery icon indicates the capacity of the battery.
8) Auto sleep and auto power off function to conserve battery life.
9) Optional thermal mini-printer (MP-2800) to print the measured data via USB port for UTG-2800.
1.3 Measuring Principle
The digital ultrasonic thickness gauge determines the thickness of a part or structure by accurately
measuring the time required for a short ultrasonic pulse generated by a transducer to travel through the
thickness of the material, reflect from the back or inside surface, and be returned to the transducer. The
measured two-way transit time is divided by two to account for the down-and-back travel path, and then
multiplied by the velocity of sound in the material. The result is expressed in the equation shown below:
2
t v
H


Where
：
H
－
Thickness of the test piece.
v
－
Sound Velocity in the material.
t
－
The measured round-trip transit time.
1.4 Configuration
Table 1-1
No
.
Item Quantity Note
Standard
Configur
ation 1 Main body 1
2 Transducer 1 Model:
N05/90
°
3 Couplant 1
4 Instrument Case 1
5 Operating Manual 1
6 Alkaline battery 2 AA size
7
8
Optional
Accessories
9 Transducer: N02 See
Table3-1
10 Transducer: N07
11 Transducer: HT5
12 Mini thermal
printer
1
13 Print cable 1
14 Communication
Cable
1
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10
15
20
25
30