When handling potentially explosive substances in your manufacturing process, limiting the level of oxygen is the method of choice for ensuring safety. The InPro6850i G sensors offer an industry-proven and reliable solution for continuous and direct, in-situ oxygen measurement. As an additional benefit: The accurate control of the oxygen concentration minimizes your inert gas bill.
Primary Concern: Safety
Having vapors of flammable liquids or dusts exposed to air in a tank or vessel can be a major safety hazard. This is why a limiting oxygen concentration (LOC) must be determined for each particular application. Keeping the vessel safely below the predefined LOC level often relies on injecting additional inert gas to reduce the oxygen to nitrogen ratio to an acceptable level, adding a safety factor of usually a few % oxygen.
How Much Purging is Really Needed?
The purging usually is done by letting nitrogen flush either continuously or when a specific, fixed overpressure level is reached. Both techniques however are indirect and rely on assumptions on what the effective oxygen to nitrogen ratio in the vessel is, and maintaining this ratio throughout all the process states of filling and emptying the vessel. So, in order to keep the vessel safe at all stages, very often too much nitrogen is consumed.
Measuring Oxygen Where it Really Matters
With a measurement system based on the InPro6850i G amperometric oxygen sensor, the true oxygen concentration in the vessel can be measured in-line, continuously. By controlling oxygen, nitrogen purging can be contained and inert gas consumption optimized. Amperometric oxygen sensors convince through their excellent price/performance ratio, and their minimized maintenance time of only two minutes.
Intelligent Sensors
The InPro6850i G sensor features Intelligent Sensor Management (ISM) technology for better measurement reliability and predictive maintenance. Digital ISM sensors monitor their own status in real time for early signs of wear and preempt maintenance requirements.
Benefits
True in-line oxygen measurement
■ Direct oxygen determination in the vessel improves process safety
Efficient operation
■ Continuous oxygen measurement in the vessel helps to keep inert gas consumption to a minimum
Easy maintenance
■ Two-minute membrane exchange can be done at the measurement point
Fast, easy calibration
■ One-point calibration in air requires no specialist skills or expensive calibration gases
Predictive maintenance
■ ISM technology for enhanced reliability and advanced maintenance
Excellent value
■ Extremely attractive price/performance ratio