Digital displayers

The digital displays are panel or switchboard indicators that display the data acquired by field measurement instruments.
The digital indicators present the value on a display, in the form of a number or via a graduated scale made up of LEDs that light up progressively, simulating the analog display.
These digital displays are in turn divided into two categories, differentiated by the type of signal they receive as input which can be pulse or current.
The pulse digital indicators receive the pulse signal and display the measurement in the engineering unit of interest. These indicators are mainly combined with litre-counters.
Digital current indicators, on the other hand, convert an analog 4÷20mA signal or 0÷10V voltage input into engineering units, which are then shown on the display. Typical applications of these digital indicators are the display of signals coming from transmitters which can be of temperature, humidity, pressure, speed, flow rate, level, force, etc. for the most varied industrial sectors, operating machines, automations.

There are various types of digital displays that Riels® Instruments can offer:

  • Digital indicators
  • Dosers & programmers
  • Digital totalizers
  • digital recorders
  • Data Acquisitors
  • Data loggers

Digital dispensers are indicators which, in addition to displaying the measurement involved, can send an output signal with a start-stop function to control a valve or other instrument.
Digital dispensers can also be equipped with some optional functions such as alarms and analog outputs.

In some digital presets, alarm thresholds can be set so that, when the value read exceeds these thresholds, digital outputs are activated which are useful for signaling and controlling the event.
Other digital dispensers may be equipped with analog outputs which, using an electrical signal, can connect with a recording device to memorize the signal.

Digital recorders are electronic devices that record data through an internal sensor or are connected to an external sensor. Some digital recorders can be connected to a PC and allow you to view the data through dedicated software. Others, on the other hand, have their own interface complete with keypad and display.
One of the main advantages of using digital loggers is the ability to store data automatically on a daily basis, which allows for accurate mapping of the conditions being monitored.

Data loggers are instruments comparable to digital recorders, but have some characteristics that differentiate them. First of all, the sampling frequency, which indicates the number of times per second in which an analog signal is measured and stored in digital form, is higher than that present in digital recorders.
The advantage of using data loggers is that they can simultaneously record several measurements, in order to obtain the existing relationships between the elements that make up the object under analysis.

Data loggers are inexpensive instruments, of very robust construction for reliable monitoring of temperature and temperature/relative humidity measurements over time. The data loggers are available in various versions: with or without LCD display, with sensors inside the container, external to the container or with cable. The analysis of the acquired data is performed with the supplied software.
The start-up, stop, configuration, data download and setting of the logging interval of the data logger are set from the keyboard or computer.
Via computer, a password can be set which enables or disables access to the configuration data.
Typical uses are temperature/humidity monitoring during transport, warehouse storage of fresh and frozen food products, fruit and vegetables, flowers, pharmaceutical products, sensitive products, photographic products, paper, explosives, laboratories in general.
The configuration and data download to PC is very simple using the dedicated software.