# US 2024/0201158 A1 · Gas detector device control based upon accessory identification > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0201158 A1 - Document ID: US20240201158A1 - Status: Published application - Kind: A1 - Application number: 18/083,491 - Filed: 2022-12-17 - Published: 2024-06-20 - Earliest claimed: 2022-12-17 - Assignees: MSA Technology, LLC - Applicants: Msa Technology, LLC - Inventors: Daniel Miller; Shane Kelleher; Minh Pham; Anthony Bafile - Web page: https://patentgrep.com/patent/US20240201158A1 ## CPC - G01N 33/0073: {Control unit therefor} - G01N 1/2273: {Atmospheric sampling} - G01N 1/24: Suction devices {(G01N1/22 - G01N1/2294 take precedence)} - G01N 33/0009: {General constructional details of gas analysers, e.g. portable test equipment (devices for withdrawing samples in the gaseous state G01N1/22)} - G01N 33/0016: {by regulating a physical variable, e.g. pressure or temperature} - G01N 33/0031: {comprising two or more sensors, e.g. a sensor array} - G01N 33/0006: {Calibrating gas analysers} - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) ## Abstract A gas detection device for detection of one or more gas analytes in an environment includes a housing including an inlet via which gas to be sampled from the environment enters the housing, a control system within the housing comprising a processor system and a memory system in communicative connection with the processor system, and one or more gas sensors within the housing in fluid connection with the inlet and in communicative connection with the control system. Each of the one or more gas sensors is independently responsive to one of the one or more gas analytes. The control system is configured to control flow rate of gas from the environment through an accessory device assembly including one or more accessory devices in fluid connection with the inlet on the basis of data for the accessory device assembly in fluid connection with the inlet. ## Claims ### Claim 1 A gas detection device for detection of one or more gas analytes in an environment, comprising: a housing comprising an inlet via which gas to be sampled from the environment enters the housing, a control system within the housing comprising a processor system and a memory system in communicative connection with the processor system, and one or more gas sensors within the housing in fluid connection with the inlet and in communicative connection with the control system, wherein each of the one or more gas sensors is independently responsive to one of the one or more gas analytes, wherein the control system is configured to control flow rate of gas from the environment through an accessory device assembly comprising one or more accessory devices in fluid connection with the inlet on the basis of data for the accessory device assembly in fluid connection with the inlet. ### Claim 2 (depends on 1) The gas detection device of claim 1 further comprising a pump system comprising at least one pump in fluid connection with the inlet and in fluid connection with the one or more gas sensors. ### Claim 3 (depends on 2) The gas detection device of claim 2 further comprising a data transfer system in communicative connection with the control system via which the data for the accessory device assembly may be transmitted to the control system. ### Claim 4 (depends on 3) The gas detection device of claim 3 wherein the data transfer system is configured for at least one of manual entry of data for the accessory device assembly by a user or to receive data transmitted from at least one communication device associated with the accessory device assembly. ### Claim 5 (depends on 3) The gas detection device of claim 3 wherein the data transfer system is configured for manual entry of data for the accessory device assembly by a user and to receive data transmitted from at least one communication device associated with the accessory device assembly. ### Claim 6 (depends on 3) The gas detection device of claim 3 wherein the control system is configured to adjust speed of the at least one pump to alter flow rate of a gas sample from the environment to the one or more gas sensors on the basis of the data for the accessory device assembly in fluid connection with the inlet. ### Claim 7 (depends on 5) The gas detection device of claim 5 wherein the control system is configured to adjust the speed of the at least one pump to a first speed, which may vary within a first range of speed, to provide a sample time of the one or more gas sensors within a range of predetermined response times. ### Claim 8 (depends on 7) The gas detection device of claim 7 wherein the control system is configured to determine the first speed of the at least one pump such that the sample time of the one or more gas sensors is approximately a predetermined time regardless of the identification of the accessory device assembly in fluid connection with the inlet. ### Claim 9 (depends on 7) The gas detection device of claim 7 wherein the control system is configured to increase the speed of the at least one pump to the first speed during transit of the gas sample to the one or more gas sensors and to decrease the speed of the at least one pump to a second speed, which may vary within a second range of speed, during measurement of one or more responses of at least one of the one or more gas sensors, the second speed being determined to achieve a flow rate approximately equal to a calibration flow rate of the at least one pump during calibration of the one or more gas sensors with a test gas. ### Claim 10 (depends on 8) The gas detection device of claim 8 wherein the one or more gas sensors are calibrated with a test gas at a plurality of pump speeds. ### Claim 11 (depends on 7) The gas detection device of claim 7 wherein the control system is configured to determine the first speed at least in part based upon measured environmental conditions. ### Claim 12 (depends on 9) The gas detection device of claim 9 wherein the control system is configured to determine the first speed at least in part based upon measured environmental conditions. ### Claim 13 (depends on 4) The gas detection device of claim 4 wherein an accessory device identification system is in communicative connection with the control system, the accessory device identification system comprising a database, the database having stored therein data for a plurality of accessory device assemblies, including reference identification data therefor, the accessory device identification system being configured to identify the accessory device assembly identification data included in the data received via the data transfer system for the accessory device assembly in fluid connection with the inlet. ### Claim 14 (depends on 13) The gas detection device of claim 13 wherein the database is stored in the memory system of the control system and the database further has stored therein characterization data for the plurality of accessory device assemblies, the memory system further comprising one or more algorithms stored thereon and executable by the processor system to control the at least one pump to adjust speed of the at least one pump to alter flow rate of a gas sample from the environment to the one or more gas sensors on the basis of the identification of the accessory device assembly. ### Claim 15 (depends on 4) The gas detection device of claim 4 wherein the data entered manually includes characterization data for the accessory device assembly thereof and the memory system further comprises one or more algorithms stored thereon and executable by the processor system to control the at least one pump to adjust speed of the at least one pump to alter flow rate of a gas sample from the environment to the one or more gas sensors on the basis of the characterization data of accessory device assembly in fluid connection with the inlet. ### Claim 16 A method of operating a gas detection device for detection of one or more gas analytes in an environment, the gas detection device including: a housing comprising an inlet via which gas to be sampled from the environment enters the housing, a control system within the housing comprising a processor system and a memory system in communicative connection with the processor system, and one or more gas sensors within the housing in fluid connection with the inlet and in communicative connection with the control system, wherein each of the one or more gas sensors is independently responsive to one of the one or more gas analytes, the method, comprising: controlling flow rate of gas from the environment through an accessory device assembly comprising one or more accessory devices in fluid connection with the inlet via the control system on the basis of data for the accessory device assembly in fluid connection with the inlet. ### Claim 17 (depends on 16) The method of claim 16 wherein the gas detection device further comprises a pump system comprising at least one pump in fluid connection with the inlet and in fluid connection with the one or more gas sensors. ### Claim 18 (depends on 17) The method of claim 17 wherein the gas detection device further comprises a data transfer system in communicative connection with the control system via which the data for the accessory device assembly may be transmitted to the control system. ### Claim 19 (depends on 18) The method of claim 18 wherein the data transfer system is configured for at least one of manual entry of data for the accessory device assembly by a user or to receive data transmitted from at least one communication device associated with the accessory device assembly and the method further comprises operating the control system to adjust speed of the at least one pump to alter flow rate of a gas sample from the environment to the one or more gas sensors on the basis of the data for the accessory device assembly in fluid connection with the inlet. more gas sensors on the basis of the characterization of the accessory device assembly. ### Claim 20 A method of detecting one or more gas analytes in an environment, comprising: controlling flow rate of gas from the environment through an accessory device assembly comprising one or more accessory devices placed in fluid connection with an inlet of a gas detection device on the basis of data for the accessory device assembly received via a data transfer system of the gas detection device, the gas detection device further including one or more sensors in fluid connection with the inlet, wherein each of the one or more gas sensors is independently responsive to one of the one or more gas analytes.