Abstract: Embodiments of the present specification provide methods and systems for maintaining accuracy and precision of calibration for a detector. The methods and systems include reducing the humidity of an internal calibration assembly by directing flow path of dry air periodically through the internal calibration assembly.

Abstract: Embodiments of the present specification provide methods and systems for maintaining accuracy and precision of calibration for a detector. The methods and systems include reducing the humidity of an internal calibration assembly by directing flow path of dry air periodically through the internal calibration assembly.

Abstract: Embodiments of the present specification provide methods and systems for clearing a detector of contaminants or any other undesirable substances that may affect operation of detector. The methods and systems enable a clear-down mode to clear the detector after an alarm is detected during sampling by the detector. The clear-down mode may be enabled immediately upon detecting a substance of interest. Further, the clear-down mode is effective to increase and direct all air flow through the detector in order to maximally purge contaminants from the detector.

Abstract: A desorber for a trace detection system. The desorber includes an inlet configured to receive a sample, a heating element configured to generate a vapor from the sample, and an active cooling element configured to cool the desorber.

Abstract: A desorber for a trace detection system. The desorber includes an inlet configured to receive a sample, a heating element configured to generate a vapor from the sample, and an active cooling element configured to cool the desorber.

Abstract: A desorber for a trace detection system. The desorber includes an inlet configured to receive a sample, a heating element configured to generate a vapor from the sample, and an active cooling element configured to cool the desorber.

Abstract: A trap for an analysis device. The trap includes a body configured to be at least partially inserted into an inlet of a desorber assembly of the analysis device. The desorber is configured to selectively operate in a plurality of analysis modes. The body includes a first surface and a feature. The first surface is configured to receive, on a first region thereof, a sample of a substance of interest for analysis by the analysis device. The feature is located in a second region of the first surface and detectable by the desorber upon insertion into the inlet thereof. The feature is associated with one of the plurality of analysis modes.

Abstract: The present disclosure is directed to methods and systems for creating a gas curtain inlet for a detector of a substance of interest. The methods and systems include introducing a carrier gas into an inlet to block out atmospheric air without having to make the inlet a sealed system.

Abstract: A flash heater element includes a first surface having a central region and an electrical flow path disposed on the first surface. The electrical flow path includes a central portion disposed at least partially within the central region and a peripheral portion disposed peripherally outwardly from the central region. A width of the electrical flow path is greater within at least a portion of the central portion than within the peripheral portion.

Abstract: The present disclosure is directed to methods and systems for creating a gas curtain inlet for a detector of a substance of interest. The methods and systems include introducing a carrier gas into an inlet to block out atmospheric air without having to make the inlet a sealed system.

Abstract: A flash heater element includes a first surface having a central region and an electrical flow path disposed on the first surface. The electrical flow path includes a central portion disposed at least partially within the central region and a peripheral portion disposed peripherally outwardly from the central region. A width of the electrical flow path is greater within at least a portion of the central portion than within the peripheral portion.

Abstract: An electronic watt-hour meter; a current transformer operatively coupled to the electronic watt-hour meter; a first shield on a first side of the current transformer; and a second shield on a second side of the current transformer, wherein the second side is substantially parallel to the first side, wherein the first shield and the second shield each include a substantially magnetically permeable and conductive metal.

Abstract: A cooling system for use in cooling an interior volume. The cooling system includes a first cooling assembly that is positioned within a housing that defines the interior volume. The first cooling assembly facilitates cooling the interior volume of the housing. A second cooling assembly is positioned external to the housing in flow communication with the first cooling assembly. The second cooling assembly is configured to channel a cooling fluid to the first cooling assembly. A control system is coupled to the first and second cooling assemblies. The control system is configured to channel cooling fluid from the second cooling assembly to the first cooling assembly when a temperature of air external to the housing is less than a temperature of air inside the housing, to facilitate reducing the air temperature inside the housing.

Abstract: An electronic watt-hour meter; a current transformer operatively coupled to the electronic watt-hour meter; a first shield on a first side of the current transformer; and a second shield on a second side of the current transformer, wherein the second side is substantially parallel to the first side, wherein the first shield and the second shield each include a substantially magnetically permeable and conductive metal.