Instructions

No. CODE Material No. CODE Material
1 cd01 Steel 2 cd02 Cast iron
3 cd03 Red copper 4 cd04 Aluminium
5 cd05 Brass 6 cd06 Zinc
7 cd07 Quartz glass 8 cd08 Polyethylene
9 cd09 PVC 10 cd10 Gray cast iron
11 cd11 Nodular cast iron 12 xxxx Sound velocity
TECHNICAL SPECIFICATION
Performance
Range (pulse-echo): 1,2 mm to 200 mm
Resolution: 0. 1 mm (0.001")
Accuracy: ±0.5 mm (±0.1"), depends on material
and conditions
Sound-velocity range: 500 m/s to 9 000 m/s
Physical
Weight: 164 g including batteries
Size: 120 mm x 62 mm x 30 mm
Operating temperature: -30°C to 50°C (-20°F to 120°F)
(depending upon climatic conditions)
Case: Extruded aluminium body
Nickel plated aluminium end caps
Absorption and scattering
As ultrasound travels through any material, it is partly absorbed. If the
materials through which the sound travels have any grain structure,
the sound waves will experience scattering. Both of these effects
reduce the strength of the waves.
Higher frequency ultrasound is absorbed and scattered more than
ultrasound of a lower frequency. It may seem therefore that using a
lower frequency transducer might be better in every instance,
however low frequencies are less directional than high frequencies.
Temperature of the material
When it is necessary to measure on surfaces that are exceedingly
hot, special high-temperature transducers may be necessary.
Additionally, care must be taken when performing a ‘Calibration to
Known Thickness’ with a high temperature application
Geometry of the transducer
The physical constraints of the measuring environment sometimes
determine the suitability of a transducer for a given job. The
transducer may simply be too large to be used in confined areas.
Also, the surface area available for contacting with the transducer
may be limited. Measuring on a curved surface may require the use
of a transducer with a matching curved wearface.
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