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MEASURE THICKNESS
IN METRIC OR IMPERIAL UNITS |
MEASURE
THICKNESS IN METRIC OR IMPERIAL UNITS |
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Non intrusive
thickness measurements of
Heat
Exchangers, Tubing ,Pressure vessels ,Castings
,Forgings ,Boilers, Plastic , metal and
glass pipe Machined Parts, Axles ,Rails,Wheels,
Storage Tanks, Steamlines, Flanges , Ship
hulls ,Decking Airframes, Aircraft windows,Plates
,Slabs,Blooms ,Billets ,Bars ,Plastic Sheets
,Pipes ,Rolls Glass Plates ,Beams ,Extrusions
,Bridges and many other surfaces that are
sonically conductive
Description:
The EES TG 11 is
a multi purpose industrial type ultrasonic
thickness gauge. It uses the transit time
ultrasonic wave propagation principle to
measure the thickness of materials of several
types including metals and plastics. The
probe acts as a sender and receiver of a
5 MHz ultrasonic signal and an internal
counter calculates the time taken for the
signals sending and receiving through the
solid being measured. The EES TG 11 can
be set at different acoustic velocities
depending on the material being measured.
The instruction book includes a table of
acoustic velocities for some of the commonly
used materials. In the absence of the acoustic
velocity of the material being measured,
it is still possible to measure materials
of this kind if a representative sample
is available of a known thickness.
Reliable and easy measurements can be made
on storage tanks, heat exchangers, machine
parts, rails, plates, wheels, forgings ,
castings and pressure vessels.
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Applications
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Wall
thickness measurements of hard materials
, piping and hull plates |
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General
inspection of metals including steel,
cast iron, aluminium, copper, brass,
titanium sheet metal, tanks, ships and
piping systems |
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Inspection
of glass , ceramics and hard plastics |
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Features
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Built
in calibration test block |
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Small
and light weight |
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Detachable
sensor piece |
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Easy operation |
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Specifications:
| Range:
0.039in to 11.81in or 1mm to 300
mm
Resolution: 0.1 mm
Display: 4 Digit Liquid Crystal
Velocity: 1000 – 9000
m/s
Battery: Operated 2 x AA
20 hour operation and flashing when battery
is low
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| Alarm:
High & Low Alarm limit setting.
Dimensions: 156mm X 80mm
X 32mm
Calibration Block: ±0.2mm
Steel
Standard Sensor Operating Temperature:
0 – 50 °C (other options available)
Automatic Power Off: within
2 minutes
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The TG-11 is a hand held microcontroller
based ultrasonic thickness gauge. It operates on two AA
type batteries and is very easy to use.
How an Ultrasonic Thickness
Gauge Works

An Ultrasonic thickness gauge is a "TRANSIT
TIME MEASURING DEVICE" working on a pulse-echo principle.
A burst of ultrasound is generated by
striking a piezo-electric crystal of the transducer with
an electrical pulse.
The sound then travels through the delay
line of transducer across the layer of ultrasonic couplant
and is then transmitted into the material being measured.
The sound pulse will continue to travel
through the material until it reaches a material of a
substantially different physical characteristic from the
test material (e.g. air). The air then acts as a transmission
barrier to ultrasound, hence it is reflected back to the
transducer.
The time required by an ultrasound
burst to make a round trip through the test material is
accurately measured by the highly stable timing mechanism
inside the instrument.
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