dissolved methane sensor
The Pro-Oceanus Mini CH4™ is a compact, low-cost, lightweight, plug-n-play methane sensor designed to provide CH4 measurements for applications involving immersion in water, oil, or water and oil mixtures.
The Mini CH4™ sensor is designed for monitoring underwater pipelines and storage facilities, and is small enough for mounting on ROV’s for underwater inspections. The Mini CH4™ probe comes in a rugged package that is ideal for studies of methane gas seeps, melting hydrates, and oil spill dispersion.
The sensor combines an oil-resistant gas transfer interface (patent pending) with an infrared detector that is linear in response to methane, but also sensitive to other alkanes.
|Measurement Ranges||0-1 % (~0-300 μg/L) | 0-10 % (~0-3 mg/L) | 0-100 % (~0-30 mg/L)|
|Resolution||0.01 % | 0.1% for 0-100% measurement range|
|Total Dissolved Gas Pressure (TDGP) Range||0 to 3 Bar|
|Accuracy||pCH4: 2% of full scale | TDGP: 1 % of full scale|
|Response Time (T63)||6 minutes|
|Operating Temperature||-2 to 50 ˚C|
|Depth Tolerance||300 m (Delrin®model) | 4000 m (titanium model)|
|Length||28 cm (+ 9 cm for battery pack)|
|Weight||1 kg in air | 0.25 kg in water|
|Housing||Delrin® (waterproof to 300 meters) | Titanium (waterproof to 4000 meters)|
|Input Voltage||6-12 V DC|
|Power Consumption||100 mA | 120 mA during warmup|
|Data Output||RS-232 | Analog 0-5 V | 4-20 mA|
|Data Storage||2 GB (with data logging option)|
|Sample Rate||1 second | user selectable|