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Choosing a digital instrument guarantees better readability, also in low light conditions, especially for instruments with LED displays, and immediate reaction to measurement variation. It is interesting to measure the humidity of the ground, but we have also thought about other things; and then we have TXtemp to measure the temperature (one of the uses of TXtemp is in association with SuperClock), and for practically any type of measurement we have TXdata (RS232, RS485 ModBus) - which can be connected to thousands of existing third-party professional RS232 or ModBus meters (and there is something for all needs: temperature and humidity meters, anemometers, voltage meters, energy, light meters, water meters, presence sensors, brightness sensors, soil humidity sensors, etc. ; practically all professional meters are available in ModBus or RS232 standard; and not just meters). There are different families of products on the market: instruments which measure a single electrical parameter (voltage, current, frequency, and phase angle cosϕ), generally used in single-phase systems, as instrumentation on the machine, and instruments allowing all the electrical parameters to be measured and displayed, both for the single-phase system and for the three-phase system. Connecting analog instruments is very simple; you just need to connect the phase and neutral cables to the instrument.

You will need to connect to a WiFi (home, work, laboratory, etc.) through which an MQTT Broker or the Internet is available. This with WiFi transmission for the Standard version, rs485 cable and in the RF version also with radio transmission at 433MHz (covering longer distances and with less battery consumption thanks to special optimizations). The POE version makes this a single cable connection that will allow monitoring from anywhere in the world; anywhere with internet access that is. In a single phase system, analog and digital instruments are selected to measure voltage, current, frequency, and power factor. If not only the electrical parameters are to be monitored, but also the energy consumption, measuring instruments which also have active and reactive energy metering should be selected. We have also included the most widespread industrial standards, HTTP and MQTT, so that our elements can be used in any automation. In a three-phase system, instruments can be installed that measure the single electrical parameter, one per phase, or a voltmeter and a current can be installed with the voltage and current switches, allowing the measurements to be displayed in sequence. The sizing of the measurement system begins with knowing the main parameters of the plant; in particular, from the characteristics of the protection switch, the type of distribution system, the rated current, the rated voltage and the type of busbar can be known.

With Modbus, BACnet and Profibus, A/B labeling refers A as the negative green wire and B as the positive red wire, in the definition of the D-sub connector and M12 circular connector, as can be seen in Profibus guides. A (green, negative) is higher than B (red, positive). Choosing an analog instrument ensures good reading stability, due to the mechanical inertia of the needle and the fact that the reader immediately knows whether the instrument is operating normally or if the reading is out of range. Termination resistors also reduce electrical noise sensitivity due to the lower impedance. The FieldLogger's small 164 x 117 x 70mm dimensions fit easily into the storage bin with plenty of room for the bin's normal load. GSI Grain Storage benefitted in several key ways following installation of the Novus FieldLogger. GSI Grain Storage installed a Novus FieldLogger data acquisition system in a grain storage bin that was repeatedly loaded and unloaded into the storage floor area to measure the separation of the floor sections. The Novus FieldLogger functioned as a versatile yet powerful data acquisition and SCADA system which the product engineer found simple to use. Section 4 defines the electrical characteristics of the generator (transmitter or driver), receiver, transceiver, and system.

The instrument must be selected according to the type of distribution system. This type of multifunction instrument is ideal in panels where space is limited, in substation panels and in main industrial panels. In multifunction instruments, not only the cables connected to the measurement, but also the RS485 serial port and the analog and digital inputs and outputs must be wired. In digital instruments, this indication is not. An optional exclusive color HMI was chosen for local indication and configuration. This high performance and high connectivity equipment also offered personnel easy configuration and operation to get the project underway as quickly as possible. Configuration and data accessibility were a snap: the FieldLogger's user-friendly configurator software was accessible by Ethernet, USB or RS485, and also provided means for online monitoring, downloading of all logged data, and quick exporting to spreadsheets and other formats. CAS DataLoggers recently provided the datalogging solution for GSI Grain Storage in Assumption, Illinois, the world's largest manufacturer of steel farm grain bins, commercial storage grain bins and grain silos, as well as grain dryers and material handling systems including grain bin sweeps, spreaders, chain loop systems, commercial bucket elevators and conveyors. GSI was planning a troubleshooting application to see the extent to which their grain floor was separating every time their grain bins loaded and unloaded, which was impacting production and storage efficiency.