Systems, methods, and software program products for dispensing chemical solutions. A controller receives a signal from a pressure sensor indicative of a pressure of a diluent. The controller determines an expected flow rate of the diluent through an eductor based at least in part on the pressure of the diluent. The controller may further determine an expected concentration of a chemical product in the solution dispensed from a discharge port of the eductor. Based on the expected flow rated and concentration of the chemical product, the controller determines a duration of a dispense stage of a dispensing operation required to dispense a predetermined dose of the chemical product. The controller then causes the diluent to flow through the eductor for the determined duration of the dispense stage. A check valve on the output of the eductor prevents dissimilar chemicals from mixing and reduces a response time of the eductor.

Systems, methods, and software program products for dispensing chemical solutions. A controller receives a signal from a pressure sensor indicative of a pressure of a diluent. The controller determines an expected flow rate of the diluent through an eductor based at least in part on the pressure of the diluent. The controller may further determine an expected concentration of a chemical product in the solution dispensed from a discharge port of the eductor. Based on the expected flow rated and concentration of the chemical product, the controller determines a duration of a dispense stage of a dispensing operation required to dispense a predetermined dose of the chemical product. The controller then causes the diluent to flow through the eductor for the determined duration of the dispense stage. A check valve on the output of the eductor prevents dissimilar chemicals from mixing and reduces a response time of the eductor.

Expert system and method for computing an adjustment procedure for obtaining an adjusted exterior waterborne paint composition for an exterior surface to be painted at a paint application site on a specific date. A starting exterior waterborne paint composition comprises base chemical compounds. When one or more computed target values of target chemical compounds for the adjusted exterior waterborne paint composition are determined different from the plurality of base values, the adjustment procedure is computed for transforming the starting exterior waterborne paint composition into the adjusted exterior paint composition and instructions comprising the adjustment procedure are sent to a remote device.

Expert system and method for computing an adjustment procedure for obtaining an adjusted exterior waterborne paint composition for an exterior surface to be painted at a paint application site on a specific date. A starting exterior waterborne paint composition comprises base chemical compounds. When one or more computed target values of target chemical compounds for the adjusted exterior waterborne paint composition are determined different from the plurality of base values, the adjustment procedure is computed for transforming the starting exterior waterborne paint composition into the adjusted exterior paint composition and instructions comprising the adjustment procedure are sent to a remote device.

Expert system and method for computing an application procedure for painting vinyl panels a target color at a paint application site while preventing vinyl warping. A target reflectivity indicator is computed for the vinyl panels once painted. When the target color and target reflectivity indicator are met by application of the multiple paint layers, the application procedure computed identifies a pigmentable waterborne paint composition, one or more proportioned paint pigments to achieve the target color at a predictable transmissivity and a preparatory waterborne paint composition considering a corresponding predictable reflectivity. Applying the pigmentable waterborne paint composition, once pigmented with the one or more proportioned paint pigments, over the preparatory waterborne paint composition meets the target reflectivity indicator for the vinyl panels at the target color. Instructions are then sent to a remote device comprising the application procedure for painting the vinyl panels at the target color while preventing vinyl warping.

Expert system and method for computing an application procedure for painting vinyl panels a target color at a paint application site while preventing vinyl warping. A target reflectivity indicator is computed for the vinyl panels once painted. When the target color and target reflectivity indicator are met by application of the multiple paint layers, the application procedure computed identifies a pigmentable waterborne paint composition, one or more proportioned paint pigments to achieve the target color at a predictable transmissivity and a preparatory waterborne paint composition considering a corresponding predictable reflectivity. Applying the pigmentable waterborne paint composition, once pigmented with the one or more proportioned paint pigments, over the preparatory waterborne paint composition meets the target reflectivity indicator for the vinyl panels at the target color. Instructions are then sent to a remote device comprising the application procedure for painting the vinyl panels at the target color while preventing vinyl warping.

A medical vaporizer is provided. In one embodiment, dual-purpose sensors are employed, such as in a configuration in which one is positioned in the mixed gas flow channel and one is positioned in the main gas flow channel. The sensors provide measurements that may be used to determine both gas flow and gas concentration in the mixed and main gas channels, even when the identity and/or properties of the gas in the main gas channel are unknown. The measurements derived from the dual-purpose sensors may be used to measure and report the total anesthetic being delivered at the vaporizer output and/or improve vaporizer accuracy.

A medical vaporizer is provided. In one embodiment, dual-purpose sensors are employed, such as in a configuration in which one is positioned in the mixed gas flow channel and one is positioned in the main gas flow channel. The sensors provide measurements that may be used to determine both gas flow and gas concentration in the mixed and main gas channels, even when the identity and/or properties of the gas in the main gas channel are unknown. The measurements derived from the dual-purpose sensors may be used to measure and report the total anesthetic being delivered at the vaporizer output and/or improve vaporizer accuracy.

Fluid mixing system for mixing components for a fluid product comprising a mixing regulator for mixing the components and a feed comprising at least two separate conduits, where a base component can be supplied to the mixing regulator in a first conduit and a component to be admixed in a second conduit, where a first sensor for determining the concentration of a chemical compound in the component to be admixed and a Brix sensor for determining a Brix value of the component to be admixed are disposed upstream of the mixing regulator in the second conduit and where a control unit is provided which can control the mixing process of the components by the mixing regulator in dependence of the concentration measured and the Brix value measured.

A managed water system can include a first body of water contained in a vessel. The managed water system can also include at least one sensor device that measures at least one parameter associated with the first body of water. The managed water system can further include a circulation system that circulates the body of water relative to the vessel. The managed water system can also include a controller communicably coupled to the at least one sensor device and the circulation system. The controller can control the circulation system, and receive measurements of the at least one parameter made by the at least one sensor device. The controller can also evaluate the measurements using multiple algorithms, and communicate a result of evaluating the measurements.