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Pro-Oceanus - Model Mini CH4 -Submersible pCH4 Sensor
The Mini CH4 instrument uses infrared detection to measure the partial pressure of CH4 gas dissolved in liquids. Conversion to dissolved methane concentration is simple with known temperature and salinity values. Mini CH4 submersible instruments are compact, lightweight, plug and play sensors designed to measure pCH4 for a range of applications. The instrument also measures total dissolved gas pressure (TDGP), a useful parameter for many applications and data correction.
Rugged dissolved methane probe for ocean pipeline leak detection, groundwater, and industrial use.
With housing options rated to 6000 dbar of hydrostatic pressure and resistance to most corrosive liquids, the Mini CH4 can provide reliable dissolved methane data for many applications. Flow-through and inline adapters are also available for simple industrial solutions.
For specialized applications, Pro-Oceanus can provide custom products to suit any need.
- Compact size
- Low power consumption
- Easy integration
- Multiple data output formats available
- Large selection of concentration ranges
- Optional internal or external battery power
- Digital option comes with internal data logger and controller with 2GB flash memory
- Determining background levels of dissolved methane prior to hydrofracturing
- Groundwater and wellwater monitoring
- Offshore oiI and gas leak detection
- Wastewater greenhouse gas emissions
- Landfill leachate methane monitoring
- Greenhouse gas emissions from dam reservoir water supplies
- Methane hydrate studies
- Measurement of pCH4 in fermentation bioreactors
Sensor Performance
- pCH4 Measurement Ranges:
- 0-1% CH4 ; by volume (~0-300 μg/L; by mass)
- 0-10%v/v (~0-3 mg/L)
- 0-100%v/v (~0-30 mg/L)
- Total Dissolved Gas Pressure: 0-2 bar
- Accuracy: pCH4: ± 3% of max range
- TDGP: ± 1%
- Equilibration rate (t63): ~8 minutes (with water-pumped head)
- Resolution: 0.1% of max range
Physical
- Length: 28 cm (11 in)
- Diameter: 5.3 cm (2.1 in)
- Weight:
- Air 0.53 kg (1.2 lbs)
- Water: -0.06 kg (-0.1 lbs)
- Housing Material: Acetal Plastic / Titanium
- Depth Rating:
- 0 - 600 m (Plastic)
- Up to 6000 m (Titanium)
- Water Temperature: 0º to 40º C
Electrical
- Input voltage:
- digital: 7-24 VDC
- analog: 12-24 VDC
- Power consumption: 85 mW (7 mA @ 12 V)
- Data output:
- digital: RS-232, ASCII format
- analog: 0-5 V or 4-20 mA
- Sample rate: 2 seconds (variable rate with logger/controller)