Integrated Heater for Uninterrupted Analyzer Operation in the Freezing Cold

AMI offers oxygen and hydrogen sulfide (H2S) analyzers designed to operate is the harsh outdoor environments where natural gas pipelines run. These analyzers utilize electrochemical sensors to provide fast and reliable measurements. But electrochemical oxygen and H2S sensors typically do not like cold environments. The electrochemical sensor contains electrolyte that will solidify and expand when temperatures drop below freezing, causing permanent damage to the sensor. AMI’s Model 2010BX Trace Oxygen Analyzer, Model 210BX Percent Oxygen Analyzer, and Model 3010BX Trace H2S Analyzer have a solution to prevent the electrochemical sensor from freezing – an INTEGRATED HEATER.

AMI’s Model 2010BX Trace Oxygen Analyzer, Model 210BX Percent Oxygen Analyzer, and Model 3010BX Trace H2S Analyzer have the option to include an integrated heater in the unit. This design feature is exclusive to these AMI products. The inclusion of the heater allows the analyzer to operate to temperatures as low as -20°F (-29°C). And the addition of the heater does not increase the size of the compact analyzer. Another benefit of the AMI design is the heater works proportional to the temperature, only drawing the power needed to keep the sensor safe. This minimizes the power draw, which can be especially important for installations running on solar power and battery. An Analyzer Heater Power versus Temperature matrix is available if you need more information on the power needs for the heater. The addition of the heater does not impact the analyzer’s hazardous area certification.

If the AMI analyzer will be installed in environments that will be colder than -20°F (-29°C), the heated analyzer can be placed inside the AMI Extreme Weather Enclosure for cold protection down to -40°F (-40°C). You can order a new AMI analyzer pre-installed in the Extreme Weather Enclosure, or you can order the enclosure separately to retrofit an existing AMI analyzer.

Do not let cold weather prevent you from monitoring oxygen and H2S concentrations in your gas natural stream. If you expect your analyzer to operate in temperatures below freezing, select AMI’s HEATED Model 2010BX Trace Oxygen, Model 210BX Percent Oxygen, and Model 3010BX Trace H2S Analyzers. Operate these heated analyzers with confidence down to -20°F (-29°C). And for colder temperatures, install the heated AMI analyzer in an AMI Extreme Weather Enclosure for operation down to -40°F (-40°C).