In production where there are automation lines,There is always a need to count something. This may be the quantity of products, the length of the material, the time it takes to complete any technical process, a machine operation or a specific mechanism, energy. An automatic pulse counting device can handle all this.
A device that can count pulses is a certain automatic module and is used as an element of control of automated lines of various types.
The counters are capable of keeping score in direct, reverse andreversible direction of pulse counting and connecting / disconnecting control circuits over external devices at the moment of reaching the required number of signals.
Лицевая панель устройств подсчета прямоугольных signals equipped with a sign-type indicator and controls - buttons. Structurally, the devices are designed in such a way that they can be easily installed in control cabinets, their panel in the foreground.
External circuits are switched with a meter through a connector-terminal block on the back of the device.
The principle of operation of the pulse counter is based on the following:
The reset function through the reset input is not available.all schemes counters. In some, this process automatically occurs when the setting and counting values match. At the same time, a pulse is applied to the relay, which switches the contacts for a certain predetermined period of time.
Universal counters can have simultaneously anddirect, and countdown, which can be controlled by phasing pulses at the input of the device. This feature allows the device to use the latter for winding machines when counting the number of turns.
The counter pulse recorder is created formonitoring of hot and cold water use, energy and gas. The device works in conjunction with conventional electricity, gas and water meters, where there is a special pulse output for telemetry tasks. The registrar can also remotely track the consumption of energy resources and conduct other accounting operations.
Depending on how many channels it hasrecorder, it can serve the same number of number-pulse channels. Devices of this type, as a rule, are mechanisms for the transformation of the secondary order. The converters of the primary order are the counters of the flow of water, natural gas or energy, in which the telemetric output is installed. An example of a registrar in the domestic market can serve as a pulse counter "Pulsar"
Besides the account scheme, the registrar has another schemememory that does not depend on external power. This memory contains an archive where all accounting data is stored. Information can be transmitted to the network using a special interface.
The meter presented is a microprocessorthe system, which is used for counting on a moving conveyor belt the number of finished products, as well as the length of the polymer film obtained by extrusion, the cable wound on Babin. It is also used when solving various issues of product sorting, determining its total quantity and batch numbers.
Built-in timer counter SI8the device makes it possible to use the device when performing the functions of the flow meter, calculating the speed of the shaft torsion, the operating hours counter. The digital device has a case design of three types: one wall version and two shield. The meter can provide the following functions:
The pulse counter SI model SI1-8 isan eight-bit single-channel device that can work in conjunction with various sensors. Its main purpose is to control the technological processes of a wide range of production. The stated meter also has the ability to work in conjunction with the encoder.
Technical capabilities of the device allowcount the impulses arriving at its input and calculate the volume of the resulting product using any units of measurement. The main functions of the circuit are:
To enter the counting setting on a typical pulse counter, you must perform the following steps:
There are many modifications of pulse counting devices that are designed to solve various production problems. All of them have the following classification by:
Different types of pulse counters can be powered by different voltages, mainly:
Signals arriving at the input of devices may have amplitudes in the same range as the supply voltage.
Касаемо выходного контакта счетчика, напряжение it can reach up to 250.0 volts with a current of up to 3.0 amps. This does not apply to high-speed meters. They have an output electronic key, assembled on transistor logic.
