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The SA40 Ultrasonic Wall Thickness Gauge is a hand held thickness gauge specifically designed for measuring the thickness of metallic, and non-metallic materials from one side where it is not possible to gain access to the other side. Materials that can be measured includes : aluminium, titanium, plastics, ceramics, glass and other good ultrasonic wave-conducting materials, as long as the material has parallel top and bottom surfaces.
With uses in many areas of industry, the SA40 can perform precise measurements on various types of raw materials, component parts, and assembled machinery. It can also be used to monitor all types of pipes and pressure vessels for loss of thickness due to corrosion. The SA40 is very easy to use. After a simple calibration to a known thickness or sound velocity, the gauge will give fast and accurate readings in millimeters.
SA40 Ultrasonic Wall Thickness Gauge – Specifications
Description |
Specification |
Technique |
pulse echo with dual probe |
Display |
4 digits LCD with back-light |
Measuring range |
0.8 to 225.0mm |
Resolution |
0.1mm |
Velocity range |
500-9,999m/sec. |
Display circle |
1 sec. |
Coupling indication |
|
Units |
mm |
Low battery indicator on LCD |
|
Auto shut-off |
after 5 min. of non-use |
Power |
2 ea. 1.5V AA alkaline cells |
Operating temperature |
0-40°C |
Operating humidity |
20-90%RH |
Size |
124 x 67 x 30mm |
Weight |
240g |
SA40 Ultrasonic Wall Thickness / Material Thickness Gauge Packing List:
- SA40 Gauge
- PT-5 Probe (5Mhz)
- Two 1.5v AA Batteries
- A Bottle of Couplant
- Operation Manual
- Calibration Certificate of Readings
- Hard Foam Lined Carry Case
Sound Velocities / Speed of Sound in Materials for Ultrasonic Thickness Gauges
The Ultrasonic Thickness Gauges can be programmed by the user to the appropriate material in two ways :
- Using known standards of the same material – set the calibration to the thickness
- Using the frequency calibration, set the frequency to the appropriate material using the Velocity / Speed of Sound Chart below.
Metals |
|
|
|
|
|
|
m/s |
|
|
m/s |
A |
Aluminium |
6 320 – 6 400 |
M |
Molybdenum |
6 250 – 6 300 |
|
Aluminium (2024-T4) |
6 380 |
|
Mercury |
1 450 |
|
Asbestos Cement |
2 200 |
N |
Nickel |
5 480 – 6 040 |
B |
Beryllium |
12 880 |
P |
Platinum |
3 690 |
|
Boron Carbide |
10 920 |
S |
Silver |
3 600 – 3 700 |
|
Brass |
4 390 |
|
Steel, Mild |
5 900 – 6 100 |
C |
Cast Iron |
3 500 – 5 600 |
|
Steel, Casting (4340) |
5 850 |
|
Cast Iron (Modular Graphite) |
5 600 |
|
Steel, 303 Stainless (Austenitic) |
5 660 – 6 120 |
|
Cast Grey Middle |
4 600 |
|
Stellite |
7 050 |
|
Copper |
4 650 – 4 720 |
T |
Tin |
3 300 – 3 330 |
|
Cadmium |
2 770 – 2 800 |
|
Titanium |
5 900 – 6 100 |
|
Chromium |
6 200 |
|
Tungsten Carbon |
6 650 |
G |
Gold |
3 200 – 3 250 |
|
Tungsten |
5 180 – 5 400 |
I |
Inconel |
5 820 |
U |
Uranium |
3380 |
|
Iron |
5 890 – 5 930 |
W |
Wolfram |
5 460 |
L |
Lead |
1 960 – 2 400 |
Z |
Zinc |
4 170 – 4 320 |
M |
Manganese |
4 660 – 4 700 |
|
Zircaloy 2 |
4 700 |
|
Magnesium |
5 770 – 5 840 |
|
Zirconium |
4 650 |
|
|
|
|
|
|
Non-Metal |
|
|
|
|
|
|
m/s |
|
|
m/s |
A |
Acrylic |
2 870 |
N |
Nylon |
2 600 – 2 690 |
|
Acrylic Resin |
2 730 – 2 870 |
O |
Oil (SAE 30) |
1 740 |
|
Air |
330 |
P |
Paraffin Wax |
2 200 |
|
Aluminium Oxide |
8 700 |
|
Perspex |
2 860 |
C |
Ceramic (Macor) |
5 631 |
|
Phenolic |
1 400 |
|
Diamond |
17 500 |
|
Plexi Glass |
2 690 |
|
Diesel Oil |
1 250 |
|
Polyamide |
2 380 |
|
Epoxy Resin |
2 650 |
|
Polyethylene |
1 900 – 2 400 |
G |
Glass (Flint) |
4 260 |
|
Polyurethane |
1 780 – 1 900 |
|
Glass (Crown) |
5 260 – 6 120 |
|
Polystyrene |
2 340 – 2 400 |
|
Glass (Quartz) |
5 570 |
|
Porcelain |
5 600 – 5 900 |
|
Glass (Window) |
6 800 |
|
PVC |
2 400 |
|
Glycerine |
1 930 |
Q |
Quartz X Cut |
5 740 |
I |
Ice |
3 980 |
|
Quartz Fused |
5 980 |
H |
Hi-Density Polyethelene |
2 220 – 2 300 |
|
Rubber (Butyl) |
1 900 |
|
(Grey & White, Not Black) |
|
R |
Rubber (Soft) |
1 480 |
M |
Methylene-Oxide |
9 980 |
|
Rubber (Vulc.) |
2 300 |
|
Monel |
5 360 – 5 400 |
S |
Silicone Rubber |
948 |
|
Motor Oil (SAE 30) |
1 750 |
T |
Teflon |
1 350 – 1 520 |
N |
Neoprene |
1 600 |
W |
Water |
1470 |
|
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NB Note : This Schedule is only a Guide |
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