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The Elcometer NDT UG20DL Underwater Ultrasonic Thickness Gauge (part number UG20DL) is a submersible material and coating thickness gauge for offshore inspection. Splash zones, jacket legs, ship hulls and subsea structures corrode where divers cannot easily reach with topside equipment, and pulling a structure for survey is impractical. The UG20DL measures remaining wall thickness in situ underwater, so metal loss can be tracked without removing the asset from service.
The Elcometer NDT UG20DL Underwater Ultrasonic Thickness Gauge is waterproof to a depth of 300 metres, equivalent to IP68, in a high strength transparent plastic housing operated by a single magnetically coupled multifunction switch. It works with dual element and single element transducers, supporting Pulse-Echo, Pulse-Echo with coating, Echo-Echo (ThruPaint) and TCG (time corrected gain) modes. The PE range is 0.63 to 500mm and the EE range is 2.54 to 102mm, with ±0.01mm accuracy, 0.01mm resolution and a velocity calibration range of 1250 to 13,995m/s. Eight pre-calibrated velocities are provided for aluminium, cast iron, iron, PVC, polyurethane, polystyrene, stainless steel and steel, plus one user-programmable setup.
Automatic probe recognition and zero simplify diving operations, and gain options run from selectable fixed levels through automatic gain control with a 100dB range and time corrected gain. The data logger stores 5,000 readings together with the A-Scan waveform, downloadable over bi-directional RS232 to the data management software for analysis on dry land. The 12.7mm 4.5 digit LCD refreshes at 25Hz with a selectable backlight. Used for offshore and marine corrosion inspection, it is supplied by BAMR, South Africa's authorised distributor.
Elcometer NDT UG20DL Underwater Ultrasonic Thickness Gauge
The Elcometer NDT UG20DL Underwater Ultrasonic Thickness Gauge is an underwater material and coating thickness gauge ideal for offshore inspections.
Specifications
- Model & Part Number
- UG20DL Underwater Ultrasonic Gauge
- Material thickness digits display
- •
- Measurement Mode
- Dual Element: PE, EE (ThruPaint™), PECT
- Single Element: Triple-Echo (ThruPaint™)
- Manual:
- 4 readings per second
- Measurement Range
- PE: 0.63 – 500mm
- EE: 2.54 – 102mm
- PECT: 0.63 – 500mm
- PECT: 10.0 – 254μm
- Triple: 1.00 – 150mm
- Measurement Accuracy
- ±0.01mm
- Measurement Resolution
- 0.01mm
- Velocity Calibration Range
- 1250 – 13,995m/s
- A-Scan
- stored in memory with each reading for review on PC
- Calibration setups
- 1 user programmable & 8 pre-calibrated velocities for:
- aluminium, cast iron, iron, PVC, polyurethane, polystyrene, stainless steel & steel
- Waterproof – depth ratings
- maximum depth 300 metres – equivalent to IP68
- Pulser type
- dual square wave pulsers
- Gain
- time corrected gain (TCG), automatic gain control (AGC) with 100dB range,
- or selectable gain: vlow, low, medium hi or vhi
- Timing
- precision 25MHz TCXO with single shot
- 100MHz 8bit ultra low power 8 bit digitizer
- Data logging
- • 5,000 with A-scan image & gauge settings in one batch
- • sequential and grid logging
- • alpha numeric batch identification
- Calibration Options
- velocity & material type
- Transducer Probe Type
- dual and single element
- Transducer Frequency Range
- 1 – 10MHz
- Transducer recognition
- custom automatic (dual transducers) & manual – selectable from a list
- V-path / dual path error correction
- automatic
- Probe Zero
- automatic (dual transducers) & manual (via integrated probe disk)
- Display
- 12.7mm 4.5 digit LCD
- Display Refresh Rate
- 25Hz
- Units (selectable)
- mm or inches
- Backlight
- on / off / auto
- Repeatability / Stability Indicator
- •
- Battery Type
- 3 x AA alkaline
- Battery Life (approximate)
- 50 hours (15 hours with backlight on)
- Low Battery Indicator
- •
- Battery Save Mode
- auto
- Operating Temperature
- -30 to 60ºC
- Size (length x diameter)
- 229.0 x 60.33mm
- Weight (including batteries)
- 680g
- Case design
- high strength transparent plastic housing with
- single, magnetically coupled, multifunction switch
- Transducer connector type
- LEMO underwater connectors
- RS232 Interface
- Bi-directional
Specifications
Specifications
- Model & Part Number
- UG20DL Underwater Ultrasonic Gauge
- Material thickness digits display
- •
- Measurement Mode
- Dual Element: PE, EE (ThruPaint™), PECT
- Single Element: Triple-Echo (ThruPaint™)
- Manual:
- 4 readings per second
- Measurement Range
- PE: 0.63 – 500mm
- EE: 2.54 – 102mm
- PECT: 0.63 – 500mm
- PECT: 10.0 – 254μm
- Triple: 1.00 – 150mm
- Measurement Accuracy
- ±0.01mm
- Measurement Resolution
- 0.01mm
- Velocity Calibration Range
- 1250 – 13,995m/s
- A-Scan
- stored in memory with each reading for review on PC
- Calibration setups
- 1 user programmable & 8 pre-calibrated velocities for:
- aluminium, cast iron, iron, PVC, polyurethane, polystyrene, stainless steel & steel
- Waterproof – depth ratings
- maximum depth 300 metres – equivalent to IP68
- Pulser type
- dual square wave pulsers
- Gain
- time corrected gain (TCG), automatic gain control (AGC) with 100dB range,
- or selectable gain: vlow, low, medium hi or vhi
- Timing
- precision 25MHz TCXO with single shot
- 100MHz 8bit ultra low power 8 bit digitizer
- Data logging
- • 5,000 with A-scan image & gauge settings in one batch
- • sequential and grid logging
- • alpha numeric batch identification
- Calibration Options
- velocity & material type
- Transducer Probe Type
- dual and single element
- Transducer Frequency Range
- 1 – 10MHz
- Transducer recognition
- custom automatic (dual transducers) & manual – selectable from a list
- V-path / dual path error correction
- automatic
- Probe Zero
- automatic (dual transducers) & manual (via integrated probe disk)
- Display
- 12.7mm 4.5 digit LCD
- Display Refresh Rate
- 25Hz
- Units (selectable)
- mm or inches
- Backlight
- on / off / auto
- Repeatability / Stability Indicator
- •
- Battery Type
- 3 x AA alkaline
- Battery Life (approximate)
- 50 hours (15 hours with backlight on)
- Low Battery Indicator
- •
- Battery Save Mode
- auto
- Operating Temperature
- -30 to 60ºC
- Size (length x diameter)
- 229.0 x 60.33mm
- Weight (including batteries)
- 680g
- Case design
- high strength transparent plastic housing with
- single, magnetically coupled, multifunction switch
- Transducer connector type
- LEMO underwater connectors
- RS232 Interface
- Bi-directional
Frequently asked questions
What measurement modes does the UG20DL offer?
The gauge supports PE, EE (ThruPaint), and PECT measurement modes. Each mode applies to different thickness measurement scenarios on submerged materials.
What is the maximum depth rating for the UG20DL?
The gauge is waterproof to a maximum depth of 300 metres, equivalent to IP68 rating.
What measurement accuracy and range does it deliver?
Accuracy is ±0.01 mm with 0.01 mm resolution. The PE measurement range spans 0.63 to 500 mm.
How does the gauge store and transfer inspection data?
The UG20DL logs up to 5,000 readings with A-scan images and gauge settings per batch. Data transfers to a PC via bi-directional RS232 interface.
What battery life should I expect in the field?
Approximately 50 hours on standard operation, or 15 hours with backlight enabled. The gauge uses three AA alkaline batteries with an automatic save mode.
What transducer options are supported?
Both dual and single element transducers are supported. Dual transducers are automatically recognised; single element probes are manually selectable from a list. Frequencies range from 1 to 10 MHz.
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Tell us about your application and we will send a quote with lead time and accessories.