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Cygnus 4
General Purpose Thickness Gauge
Digital, Ultrasonic Multiple Echo
Measures thickness to
determine wastage or
corrosion --
accurately, quickly and without removing surface coatings.
Overview |
Cygnus 1 Heavy Duty | Cygnus 1
Intrinsically Safe | Cygnus 1 Underwater |
Cygnus 2 Hands Free |
Cygnus 3 Data Logger | Cygnus
4 General Purpose | Cygnus Mini ROV |
Cygnus Dedicated ROV
 Description
The Cygnus 4 is a compact,
general purpose Ultrasonic Thickness gauge using Cygnus Multiple
Echo technology. It is suitable for use in most hand-held
industrial or shipping applications. The LCD display is easily
read outdoors, and has a backlight for use in dark areas. The
Cygnus 4 is supplied ready to use as a complete kit in a
protective carry case.
Benefits
- Multiple echo, single-crystal
Ultrasonic Thickness Gauge.
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Coatings
do not have to be removed - measures only the metal thickness.
- Accepted by major classification
societies.
- No grinding - minimum surface
preparation.
- Measures on rough corroded
surfaces.
- Speed, accuracy and reliability.
- No false readings - repeatable
results.
- Easy to use - minimum operator
training.
- Greatly reduced inspection time
and cost.
- Measures on metals and some
other materials.
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Applications
-
 Metal
thickness monitoring on cranes, marine structures and conveying
systems.
- Corrosion checks on ships'
shell plates, bulkheads and structures.
- Metal thickness safety checks
on steam and pressurized water systems, transportable gas
containers and compressed air systems.
- Systematic wall thickness and
corrosion monitoring of storage tanks and process vessels.
- Quality assurance metal
thickness checks.
- Maintenance and safety checks
on bridges and street lighting columns.
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Cygnus
Multiple Echo Technology
With
multiple echo technology, readings are taken by
measuring the time delay between any three consecutive
backwall echoes. The time T1 (for coating thickness) is
ignored. The times T2 and T3 are equal to the time that
it takes for sound to travel through the metal. Only by
looking at three echoes can the measurements be made for
the metal thickness, where T2 = T3. |
Features
- Backlit digital display for
easy viewing from bright sunlight to complete darkness.
- Rugged construction - shock
proof - protected to IP65 (NEMA-4).
- Stable calibration - linear
accuracy - no zero adjustment.
- Self verification of the
measurements to ensure accuracy.
- Choice of probe options.
- Displays sound velocity
settings.
- Echo strength indicator to
aid measurement.
- Calibrates to a known
thickness or a known velocity of sound
- Probe frequency
selectable.
- Low battery warning.
- Metric / Imperial switchable.
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| Materials |
Sound
velocities between 1000 m/s and 9995 m/s |
| Range |
3
mm to 250 mm with 2.25 MHz probe
2 mm to 150 mm with 3.5 MHz probe
1 mm to 50 mm with 5 MHz probe |
| Accuracy |
± 0.1
mm or ± 0.05 mm |
| Resolution |
0.1
mm or 0.05 mm |
| Probes |
Remote
single-crystal, soft-faced compression.
6 mm - 5 MHz
13 mm - 2.25 MHz, 3.5 MHz or 5 MHz
19 mm - 2.25 MHz |
| Power
Source |
2
x AA alkaline batteries |
| Displays |
Large,
clear
LCD display with switchable backlight. |
| Dimension |
155
x 33 x 82 mm |
| Weight |
285
g |
| Operating
Temp. |
0°C
to +50°C |
| Warranty |
2
years |
 Kit Contents
- Instrument
- Remote, 2.25 MHz,
13 mm diameter probe
- Spare membranes.
- Steel test block.
- Leather case with strap.
- Operation manual.
- Carrying case.
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