Pro-Oceanus Solu-Blu Dissolved CH4 Probe
Features
- Provides continuous 24/7 dissolved CH4 monitoring
- Fully temperature and pressure compensated
- Ideal for groundwater baseline monitoring or lab fermentation studies
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The Solu-Blu dissolved CH4 probe can be used for long-term continuous in-situ monitoring to provide dissolved methane data for applications such as groundwater baseline monitoring and laboratory fermentation studies. The probe provides fully temperature and pressure-compensated data. Flow-through and in-line adapters are also available for simple and effective industrial solutions.
Mechanics
The measurement of a gas dissolved in a liquid is facilitated by a semi-permeable membrane that allows gases to transfer from water into a gas head space where the measurement is made. The simple yet rugged sensor allows for the monitoring of methane in a range of environments and liquids. The probe is configured for multiple data output formats to allow for rapid integration into most platforms for data transmission and collection with minimal time and effort.
Sensor Performance | |
---|---|
CH4 Measurement Ranges | 0-30 mg/L 0-3 mg/L 0-300 μg/L |
Accuracy | |
CH4 | ± 3% of max range |
TDGP | ± 0.1% |
Temperature | ± 0.5º C |
Equilibration rate (t63): | ~10 minutes |
TDGP | 10 minutes |
Resolution pCO2 | 0.1% of max range |
Physical | |
---|---|
Length | 20 cm (8 in) 26 cm with connector |
Diameter | 5 cm (2 in) |
Weight | 0.28 kg (0.6 lbs) |
Housing Material | Acetal Plastic |
Depth Rating | 0 - 50 meters |
Water Temperature | -2º to 40º C |
Electrical | |
---|---|
Input voltage | digital: 6-24 VDC analog: 12-24 VDC |
Power consumption | 0.45 W (35 mA @ 12 V) |
Data output | RS-232, ASCII format 0-5 V or 4-20 mA |
Sample rate | 1 second |
In The News
In the Right Place All the Time: Greenhouse Gas Research and NTL-LTER
While researchers all over the globe have been studying greenhouse gases, there are still some areas in the field that have not received as much attention as they deserve. Emily Stanley, professor in the department of integrative biology at the University of Wisconsin and principal investigator for North Temperate Lakes Long Term Ecological Research (NTL-LTER), has spent a significant part of her career exploring a few of them. 
 
 “Clearly we have a problem with greenhouse gases. What people may not realize is that streams and lakes are hotspots of global methane and CO2. Understanding greenhouse gas dynamics in these systems is important because they are vents all over the world and they are not insignificant,” said Stanley.
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[caption id="attachment_38996" align="alignnone" width="940"] HRWC volunteers measure stream velocity across a subsection of Woods Creek, a tributary of the Huron River near Belleville, Michigan. Stream velocity measurements can be combined with water level measurements to calculate stream flow and chemical parameter loads.
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In the eastern basin of Lake Erie, off the coast of Dunkirk, New York, a data buoy collects valuable water quality, weather, and wave data that inform residents and regulatory groups of conditions on the water. 
 
Since 2011, Buffalo State University’s Great Lakes Center has maintained and operated the Dunkirk buoy with funding from the Great Lakes Observing System (GLOS) and field support from the NYSDEC Lake Erie Fisheries Research Unit. 
 
[caption id="attachment_38976" align="aligncenter" width="940"] The Dunkirk Buoy viewed from the research vessel after being deployed in early spring.
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