Cygnus 1 Intrinsically Safe

The Cygnus 1 Intrinsically Safe is a rugged, shock-proof multiple echo ultrasonic surface thickness gauge designed for safely measuring metal thickness to de...
  • Certified Intrinsically Safe to: ATEX Marking Group I & Group II, CSA Class 1 Group A, B, C & D Division 1
  • For use in Zone 0, Zone 1 hazardous areas
  • No plant shutdown or hot work permit necessary
  • Heavy duty sealed unit - IPX5 and IPX7 rated - highly water / dirt / dust resistant
  • Rugged, durable, shock proof construction
  • Stable calibration - linear accuracy - no zero adjustment
  • Self verification of the measurements to ensure accuracy
  • Various probe options
  • Two rechargeable batteries with charger
  • Displays sound velocity settings
  • Echo strength indicator to aid measurement
  • Bright LED display with polarised filter
  • Probe frequency selectable
  • Low battery warning
  • Metric / Imperial switchable
  • Also approved for use in mines.
Materials Sound velocities between 2000 m/s and 7000 m/s - covers virtually all common engineering materials
Measurement Range in Steel 3 mm - 250 mm with 2.25 MHz probe
2 mm - 150 mm with 3.5 MHz probe
1 mm - 50 mm with 5 MHz probe
Accuracy ±0.1 mm (±0.004”) or 0.1% of thickness measurement, whichever is greatest, when calibrated in accordance with Cygnus Instruments calibration procedure
Resolution 0.1 mm or 0.05 mm (selectable)
Probes Single crystal soft-faced compression
6 mm - 5 MHz
13 mm - 2.25, 3.5 or 5 MHz
19 mm - 2.25 MHz
Power NiMH rechargeable battery pack
Battery Life 10 hours' continuous operation
Display Large, bright LED display
Size 235 mm x 75 mm
Weight 1040 gm - with probe
940 gm - with fixed head probe
(including batteries)
Operating Temp -10°C to +50°C
Certification ATEX
{Ex} I M 1 Ex ia I Ma (Ta = 0 to 45 C)
{EX} II 1 G Ex ia IIC T6 Ga (Ta = 0 to 45 C)

CSA Class 1 Group A, B, C & D Division 1
Environmental Protection IPX5 & IPX7
Compliance CE, British Standard BS EN 15317:2013
  • Chemical plants
  • Dry, dusty environments where ignition could occur
  • Fuel depots
  • Grain processing plants
  • LPG vessels
  • Oil and gas production facilities such as pipelines and offshore platforms
  • Petroleum, chemical storage tanks
  • Processing vessels
  • Road transport tankers carrying potentially explosive contents
  • Structures and facilities in mines.