Disclosed is a monitoring device of water meter, comprising a body, a sensor, a camera module, a communication module and a microcontroller unit. The sensor, the camera module, the communication module and the microcontroller unit are disposed in the body. The sensor is used to obtain pointer rotation times information. The camera module is used to obtain reading image information. The microcontroller unit transmits the received pointer rotation times information and the reading image information to a communication module of another monitoring device of water meter and/or a server via the communication module. The monitoring device of water meter of the present invention has functions of pointer rotational detection and number display wheel image capturing, degree of water consumption is further calculated by means of the above two functions which are complementary to each other.

Methods, devices, and systems for a flow condition testing procedure of an aspirating smoke detector device are described herein. One device includes a blower to draw gas into an aspirating smoke detector device, a sensor, a memory, and a processor to execute executable instructions stored in the memory to determine, via the sensor, a flow rate of the gas into the aspirating smoke detector device, determine a flow condition based on the determined flow rate, and cause the flow condition to be displayed.

A system for executing a lubrication plan including a grease meter for measuring a volumetric flow of grease through the meter. The grease meter having a memory for storing a set of instructions that includes a series of prescribed grease volumes be delivered at a corresponding series of lubrication points, a memory for storing a volume of grease delivered at a particular lubrication point and is configured to communicate with the display device. A display device includes a memory for storing an image of each lubrication point in the series, each image being a photograph of the machine that has the lubrication point. The machine is configured to display each image along with the prescribed grease volume to be delivered at the corresponding lubrication point. The displayed image of a further lubrication point in the series image is triggered by the grease meter when a delivered volume is stored.

A magnetic-inductive flowmeter and a method for operating the flowmeter are disclosed. The flowmeter has a measuring tube, a magnetic field generator, and a controller with first and second measuring terminals. A medium is made to flow through the measuring tube. The controller performs the following steps: generating and feeding an emission signal and receiving a receive signal caused by the emission signal at the first measuring terminal and second measuring terminal; determining an impedance with an impedance amount and an impedance phase using the emission signal and the receive signal; and signaling a short circuit if the impedance amount is smaller than a first limit impedance amount and the impedance phase is larger than a limit impedance phase.

A flow transmitter method and system involves obtaining, via a flow sensor, sensor measurements of flow characteristics of a moving medium; outputting, via a processor, a drive signal for driving a pulse output circuit to generate a pulse signal according to the sensor measurements from the sensor; and generating, via a switching circuit of a pulse output circuit, a pulse signal according to the drive signal. The method and system further involve monitoring, via a diagnostic circuit connected to the switching circuit, current corresponding to the pulse signal; and determining, via the processor, whether the output circuit is operating in a normal or abnormal state based on the drive signal from the processor and a feedback signal corresponding to the monitored current from the diagnostic circuit.

The visibility of light is improved. A flow rate sensor device includes a substrate, sensor elements electrically connected to the substrate, light emitting elements positioned in a rear part of the sensor elements and disposed on a surface of the substrate, and light-transmissive cases internally accommodating the light emitting elements between the light-transmissive cases and the substrate. The light-transmissive cases have light diffusion members projecting from ceiling sections toward the light emitting elements, the light diffusion members have light incident surfaces facing the light emitting elements and wall surfaces connecting the light incident surfaces and the ceiling sections, and at least a part of the wall surfaces has a tilting surface having a dimension between the opposing wall surfaces, the dimension gradually increasing from a side close to the light incident surface toward the ceiling section.

The present invention relates to an apparatus for determining and/or monitoring at least one process variable of a medium, comprising a sensor unit for registering a value for the process variable, a time registration unit for registering at least one duration of operation and a calculating unit, which is embodied at least based on the duration of operation registered by the time registration unit and based on at least one influencing variable influencing the duration of operation to make at least one statement with reference to condition of at least one component of the apparatus. Furthermore, the present invention relates to a method for operating an apparatus of the invention.

It is an object to provide a flow rate sensor device having improved sensor responsiveness compared with the prior art. The present invention is a flow rate sensor device (1) including a sensor element (3, 4) that detects a flow rate, wherein a sensor unit (10) on which the sensor element (3, 4) is mounted and a drive substrate (11) including a drive control circuit are connected through a connection portion (12) narrower than a width of the drive substrate (11). Thus, a heat source in the drive substrate (11) and a heat source in the sensor unit (10) can be separated by the connection portion (12) that is thin in width, and the thermal influence from the drive substrate (11) to the sensor unit (10) can be suppressed. Therefore, good sensor responsiveness can be maintained.

A system is provided for tracking, in a distributed water infrastructure, water usage by category. The system may comprise at least one processor configured to receive from at least one sensor associated with the distributed water infrastructure signals indicative of water usage in the distributed water infrastructure. The system may, based on the signals indicative of water usage, construct a plurality of profiles. The system may assign each profile to one of a plurality of water usage categories. The system may collect, from the at least one sensor, signals indicative of water usage for substantially all water delivered through the distributed water infrastructure in a time period. The system may construct a plurality of water usage profiles in the aggregate, encompassing substantially all water delivered through the distributed water infrastructure in the time period. The system may assign each constructed water usage profile to one of the plurality of water usage categories. The system may output, for display, water usage for the time period for each of the plurality of water usage categories.

A system is provided for tracking, in a distributed water infrastructure, water usage by category. The system may comprise at least one processor configured to receive from at least one sensor associated with the distributed water infrastructure signals indicative of water usage in the distributed water infrastructure. The system may, based on the signals indicative of water usage, construct a plurality of profiles. The system may assign each profile to one of a plurality of water usage categories. The system may collect, from the at least one sensor, signals indicative of water usage for substantially all water delivered through the distributed water infrastructure in a time period. The system may construct a plurality of water usage profiles in the aggregate, encompassing substantially all water delivered through the distributed water infrastructure in the time period. The system may assign each constructed water usage profile to one of the plurality of water usage categories. The system may output, for display, water usage for the time period for each of the plurality of water usage categories.