Cygnus 1 Intrinsically Safe Thickness Meter Gauge


Cygnus 1 Intrinsically Safe Thickness Meter Gauge

  • 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.

Kit Content

Instrument, heavy duty probe (2.25 MHz 13 mm diameter), 2 rechargeable batteries and battery charger, spare membranes and ‘O’ rings, steel test block, calibration trim tool, couplant, operation manual and carry case.


  • 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.

For optimum performance of the Cygnus 1 Intrinsically Safe Thickness Meter Gauge it is essential to utilise the appropriate probe for the specific material being tested. Here below are the probe options available:

Single Crystal Soft-Faced Compression

6 mm – 5 MHz

13 mm – 2.25, 3.5 or 5 MHz

19 mm – 2.25 MHz

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Materials Sound velocities between 2000 m/s and 7000 m/s – covers virtually all common engineering materials
Measurement Range in Steel 3 – 250 mm with 2.25 MHz probe
2 – 150 mm with 3.5 MHz probe
1 – 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)
Power NiMH rechargeable battery pack
Battery Life 10 hours’ continuous operation
Display Large, bright LED display
Size 235 x 75 mm
Weight 1040 g with remote probe (inc. batteries)
Operating Temperature -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
    • Does it come with an Initial calibration certificate?

Yes, NDT Consultants Ltd initially provides calibration certificate.

    • Do we need to recalibrate UV-EYE device every year ?

We have engineered the product such that you yourself can calibrate UV Eye every year using shims with traceable calibration certificates.

    • Do you provide calibraion service for UV-EYE ?

Yes, we do.

    • What is the measurement accuracy ?

UV-EYE can measure up to +- 1 mm accuracy.