摘要:
Monitoring systems and apparatuses and methods for using same are generally described. A gas monitoring system may include a base component and a module component. The module may be configured to be operably coupled to the base component through corresponding interface connectors. The system may be monitor for gases and generate alarms relating thereto, when the module is connected to the base. The base and/or module may have limited or no functionality when disconnected from the module and/or base. The module may include components that typically have an increased potential for upgrades, replacement, maintenance, or other modifications. The base may include components that typically have a lower rate of being upgraded, replaced, or requiring maintenance. In this manner, high maintenance components may be arranged in a module that has a smaller and more portable form factor as compared to the base and the system overall.
摘要:
An apparatus comprising first and second electrodes (201, 202) separated by an electrolyte (203), the first and second electrodes (201, 202) configured to exhibit a potential difference therebetween on interaction of the first electrode (201) with an analyte, wherein the first electrode (201) is configured such that its electrical conductance and electrochemical potential are dependent upon the amount of analyte present, the electrical conductance and electrochemical potential of the first electrode (201) affecting the potential difference between the first and second electrodes (201, 202), and wherein the apparatus comprises respective first and second terminals (204, 205) configured for electrical connection to a readout circuit to enable determination of the presence and/or amount of analyte based on the potential difference.
摘要:
In accordance with an aspect of the present invention there is provided a system for sampling air at multiple locations in a controlled environment. The system includes one or more air sampling devices configured to monitor and test a volume of air within a controlled environment. A control center including a programmable logic controller (PLC) is configured to monitor and control the one or more air sampling devices. One or more touch panel displays are connected to the control center and provide a human-computer interface between the control center and users.
摘要:
Gas analysis and control system, in particular for the detection of the Lower Explotion Limit (LEL) value on a gas or a gaseous mixture, suitable for gases that arose in printing processes, comprising: a first inlet line (17) to draw off a gas or a gaseous mixture from a gas duct (1), a tapping group (101) interfaced with said gas duct (1), a measurement group (102) positioned in said first line (17) downstream of said tapping group (101) and a second return line (17') positioned downstream of said measurement group (102) and able to transfer the gas or gaseous mixture from said measurement group (102) to said duct (1); said tapping group (101) comprises first means (3, 18) for detecting a first gas or gaseous mixture flow rate and said measurement group (102) comprises a gas analyzer (5) for detecting the Lower Explosion Limit (LEL) value on the gas or gaseous mixture and second means (6) for detecting a second gas or gaseous mixture flow rate; said measurement group (102) is interfaced with further means (7, 8, 12) for supplying air downstream of said second means (6) and for mixing air with said gas or gaseous mixture according to the pressure difference between said first flow rate detection and said second flow rate detection.
摘要:
An environmental monitoring device for detecting and warning users of unhealthy levels of a given substance is disclosed having more than one sensor for each substance to be detected. Each sensor for each substance detected may be positioned in more than one plane or surface on the device. The device may be capable of auto or self calibration. Methods for reading substance levels and auto calibrating are also disclosed.
摘要:
The method consists in, first, circulating the air in which the content of a specific pollutant is to be measured through or over materials that reversibly absorb compounds in the air that interfere with the measurement of pollution. These absorbent materials are employed in the form of self-fixing patches or membranes that can be disposed of after use and are placed between the air to be measured and the measurement means. These patches or membranes can be used for all types of measurement means, such as electronic sensors or colorimetric indicators (in which case the membrane will advantageously be transparent). This actual pre-treatment of the air will thus allow reliable, reproducible measurement irrespective of the environmental conditions (humidity, presence of other pollutants, etc.). For humidity, for example, the membrane will consist of silica gel or cotton wool. A first application is an individualized warning device that can be carried on the reverse of a jacket or on the wrist, for alerting asthmatics to the presence of a peak in ozone pollution or sulphur and nitrogen oxide pollution.