OGI for SMART LDAR surveys
Caroline X Ex is SENSIA’s latest model of Optical Gas Imaging (OGI) for the detection of fugitive emissions of SF6, Refrigerant gases, Ammonia and others gases leaks. It integrates a spectrally optimized high-resolution uncooled detector that detects the 90% of diffused gas emissions caused by leaks.
Featuring an integrated touch screen display, Caroline cameras run the software application RedLook embedded increasing the functionality and simplicity of the device.
Base Specifications
| FPA | Uncooled 640 x 480 px |
| Pixel Pitch | 17 μm |
| NETD | <22mK @ +30ºC |
| Lenses | 20 mm | 35 mm |
| Lens Field of View | 31ºx23º | 18ºx13º |
| Display | TFT LCD panel 5″ HD |
| Accuracy | ± 1ºC (from -10ºC to 60ºC ) |
| Memory Storage | SD card up to 256 GB |
| Transfer speed better than 500Mb/s | |
| Autonomy | 3 x 4 hr |
| Weight | 2.1 kg |
| Max. Dimensions | 187 x 165 x 68 mm |
| Operating Temp. Range | -10ºC to +50ºC |
| Storage | -40ºC to +71ºC |
| Certifications | EMC (EN 61326:2013) |
| IP 65 (EN 60529:2018) | |
| ATEX Zone II (EN 60079:2013) | |
| II 3G Ex nR IIC T6 |
Features Under Demand
| SF6 | Sulphur Hexafluoride |
| CH3OH | Methanol |
| NH3 | Ammonia |
| R134a | Haloalkane Refrigerant |
| FbRs | Freon based refrigerants |
The following chart shows and compares the MDLR (Minimum Detectable Leak Rate) value of different hydrocarbons for each SENSIA OGI technology.
| MDLR (g/h) | Mileva 33 | Caroline |
|---|---|---|
| Benzene | 2.1 | 6.3 |
| Butane | 0.15 | 0.6 |
| Ethane | 0.34 | 1.02 |
| Ethanol | 0.5 | 1.5 |
| Ethylbenzene | 0.9 | 2.7 |
| Ethylene | 3.4 | 1.02 |
| Heptane | 1.2 | 4.8 |
| Hexane | 1 | 3 |
| Isoprene | 6.4 | 19.2 |
| MEK | 2.5 | 7.5 |
| Methane | 0.35 | 1.4 |
| Methanol | 2.1 | 6.3 |
| MIBK | 1.4 | 5.6 |
| Octane | 0.8 | 3.2 |
| Pentane | 2 | 8 |
| 1-Pentene | 4.3 | 12.9 |
| Propane | 0.15 | 1.43 |
| Propylene | 2.1 | 8.4 |
| Toluene | 3 | 9 |
| Xylene | 0.8 | 2.4 |
Considerations related to the MDLR determination for the SENSIA OGI’s
- Leak observation is done at distance short enough to ensure the leak resolvancy with various pixels
- Characterization test conditions:
o Background temperature controlled
o Outlet Orifice Diameter= ¼’’
o CH4 diluted with N2 (25% methane)
- Gas Detection condition using High Sensitivity Mode
The following table shows the gas detection capabilities of the SENSIA OGI’s under real scenarios conditions.
| Caroline | Mileva 33 | |
|---|---|---|
| Minimum Methane mass flow rate for detection | Detection distance | Detection distance |
| 0,3 g/s | 50 m | 125 m |
| 0,5 g/s | 100 m | 250 m |
This table specifies the minimum mass flow rate, for methane as the reference gas, that can be detected by each technology from a certain distance.
Innovative capabilities assembled under a single control software
Enhanced Mode
Redlook is capable of automatically coloring the gas to facilitate the identification. With SENSIA OGI cameras, you can scan broad sections of equipment rapidly and survey areas where traditional contact measurement tools cannot access.
Quantitative OGI
Placing the OGI on a tripod activates automatic quantification of gas leaks: fast, accurately and safely.
Caroline_Y for leaktightness verification
Caroline_Y Ex has a new design, a 5-inch touch screen and runs under RedLook, the most powerful and intuitive software for gas visualization. This control and analysis software unfold the full potential of Caroline_Y Ex Optical Gas Imaging.
Caroline_Y Ex has the main international certifications in temperature, humidity, vibration, dust and water intrusion and hazardous environments. With this new OGI, the operator can inspect locations under severe restrictions, that generally impede SMART Leak Detection and Repair operations.
MAIN FEATURES AND SPECIFICATIONS
Software application designed for LDAR campaigns
Human Interface
5' HD display with touch screen
USB - Rechargeable Batteries
3S li-ion with over/under voltage and short circuit protection
Ergonomics and Confort
Pivoting screen and handle with joystick controller
ATEX Certification
ATEX certified for safe use in explosive atmospheres
ISO 9001:2015
SENSIA is certified under the ISO standard for the 'design, development and manufacturing of infrared technology'
Leak Detection and Repair
Leak Detection and Repair
SENSIA Handheld cameras are compatible with SENSIA Gas Sniffer 4.0, which allows the user to obtain quantitative measurements of the gas on screen fulfilling the Smart LDAR and Method 21 protocols simultaneously.
Metadata linked to the survey for easy leaks tracking.
Caroline_X Ex for LDAR Campaigns
Caroline_X Ex has a new design, a 5-inch touch screen and runs under RedLook, the most powerful and intuitive software for gas visualization. This control and analysis software unfold the full potential of Caroline_X Ex Optical Gas Imaging.
Caroline_X Ex has the main international certifications in temperature, humidity, vibration, dust and water intrusion and hazardous environments. With this new OGI, the operator can inspect locations under severe restrictions, that generally impede SMART Leak Detection and Repair operations.