Sensors achieve five years of accurate readings with no calibration

NevadaNano released the results of five years of continuous operation for its MPS Sensors. Manufactured and calibrated in early 2017, the sensors have been running continuously for five years. Throughout this period, there has been no further calibration, and there has been no deterioration or drift, and despite regular exposure to combustible gases, the sensors' accuracy remains within specifications.

"No other sensors available today can perform with such consistent and reliable accuracy without at least annual calibration," said Gary Collins, head of sales at NevadaNano. "This historical data underscores the vital role MPS sensors play in creating safe work environments and detecting potential hazards without maintenance or replacement."

Concurrently, Assured Testing Services executed independent performance tests on the sensors and competitors' NDIR and pellistor sensors when exposed to methane, hydrogen, and propane gases. The pellistor and NDIR sensors degraded after ten days and needed recalibration in less than 60 days. Only this company maintained its accuracy with no maintenance.

The MPS Gas Sensor Family includes the MPS Flammable gas sensor (0% to 100%LEL), MPS Methane gas sensor (range of 50 to 1Mppm), MPS Refrigerant sensors for a wide range of A1, A2L, A3 refrigerants and MPS configurable sensor, where any analogue voltage is offered as a drop-in replacement. Each sensor is provided in various packaging formats. Based on accelerated life testing, the sensors last 10+ years, cannot be poisoned, never need calibration, and delivers lower power than traditional sensors.

The technology is the first low-cost sensor technology that can accurately measure multiple gases with no manual intervention and the first sensor technology that can measure a broad variety of gases with only a software change. As a smart sensor with built-in environmental monitoring and algorithms that compensate for temperature, pressure and humidity variations, it offers accurate readings over the complete environmental range. In employing 27 patents for on-chip chemical analysis technology, the sensors are excellent for the most demanding safety, HVAC-R and IoT applications.