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Cygnus 4 - General Purpose
Multiple Echo Ultrasonic Thickness Gauge
A compact general purpose Ultrasonic Thickness gauge gives accurate, error-checked, through-coating measurements using our Multiple Echo technology. Highly versatile for use in most hand-held industrial or shipping applications. The LCD display is easily read outdoors and perfect for use in all light conditions, with automatic white back light control. Menu-driven operation and "Deep-Coat" mode allow easy thickness gauging through coatings up to 20 mm. Cygnus 4, supplied in an IP65 rated/sealed aluminum enclosure, protective silicon sleeve and clip is extremely light, tough and simple to use.
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- Water tight housing rated 1P67 (30 minute submersion – NOT FOR DIVING)
- Dust proof housing rated IP65 (30 minute dust/particle test)
- Light, rugged, small and shockproof sealed aluminum housing
- Gauge senses probe type and automatically adjusts settings for optimum performance
- Valid thickness measurements and minimum thickness function
- LCD Graphic Display with automatic white back light
- Cygnus Echo-Strength bars assist thickness measurements
- Simple gauge and menu operation with 3 tactile keys
- Protective silicone sleeve offers maximum protection and versatility
- Secure, Twist-to-lock probe connection (BNC)
- DEEP COAT mode for coatings up to ¾” (20 mm) thick
- Display Freeze function for easy measurement verification and logging
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| Materials |
Sound velocities between 2000 m/s and 7000 m/s - covers virtually all common engineering materials (2,000 m/s to 7,000 m/s)
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| Range in Steel |
0.110"- to 9.995" (3mm – 250mm) with 2.25 MHz probe
0.065"- to 9.995" (2mm – 150mm) with 3.5 MHz probe
0.045"- to 9.995" (1mm – 50mm) with 5.0 MHz probe |
| Accuracy |
+/- 0.005" (0.1mm) OR +/-0.002" (0.005mm) |
| Resolution |
0.005" (0.1mm) or 0.002" (0.005mm) |
| Probes |
Remote single crystal soft faced compression
½" heavy duty standard (13mm) – 2.25 MHz
¼" (6mm) – 5 MHz
½" (13mm) – 5.0 MHz or 3.5 MHz
¾" (19mm) – 2.25 MHz |
| Power |
2 X AA Alkaline batteries – optional rechargeable batteries |
| Battery life |
30 hours continuous operation with alkaline batteries (backlight on) |
| Display |
Large liquid crystal display with white backlight automatically turns off in bright light conditions |
| Size |
4 3/4” X 3 3/8” X 1” (85 mm X 115 mm X 25 mm) |
| Weight |
9.7 oz. (275 g) with batteries |
| Operation Temp |
14°F to 122°F (-10°C to +50°C) |
| Enviromental Protection |
IP65 & IP67 |
| Compliance |
CE, British Standard BS EN 15317:2007 |
| Enviromental |
RoHS, WEEE compliant |
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Instruments, 2.25 MHz x 13 mm diameter probe, spare membrane, steel test block, membrane couplant, ultrasonic couplant, accessory pouch, protective silicone sleeve with neck strap, operation manual, carry case.

THREE YEAR WARRANTY
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- 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 pressurised water systems,
transportable gas containers and compressed air systems.
- Systematic wall thickness and corrosion monitoring of storage tanks, process vessels and road tankers.
- Quality assurance metal thickness checks.
- Maintenance and safety checks on bridges and street lighting columns.
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