P30U transducer is designed to convert temperature, resistance, standard voltage and current signals into a standard DC voltage or DC current signal.
The output signal is galvanically isolated from the input signal and the power supply.
P30U has programmable measurement and additional functions.
Programming parameters can be realized with the use of buttons, via RS-485 interface and free e-con software or Ethernet or any web browsers via Ethernet interface.
Pointer frequency meters are moving-coil meters with built-in measuring transducers intended for measuring
voltage frequency in AC electrical networks. These meters can be mounted on panels of any kind of materials.
Panel power factor meters are destined for measurements of the phase angle between the voltage and current in single phase or three-phase AC power networks. These meters are calibrated to correspond to the cosine of the angle, i.e. the power factor. These meters can be mounted on panels of any kind of materials.
The power meter is a mowing-coil meter with a built-in measuring transducer. It is destined to measure active or reactive power in a.c. power networks. The measured power is indicated by a magnetoelectric (moving-coil) measuring system.
These meters are delivered in following versions:
– for measuring the active power in single-phase systems,
– for measuring the active or reactive power in three-phase
three-wire or four-wire symmetrically or asymmetrically loaded systems,
– with the zero graduation on the left side of the scale for measuring the unidirectional power flow,
– with the zero graduation in the middle of the scale for measuring the bidirectional power flow.
The PD10 converter is a device which transmits data from the USB interface to the RS-485 industrial interface. USB interface, as the first, is destined to communicate with the device having a USB Host port, which is the most frequently a PC computer. The RS-485 interface, as the second, is destined to communicate with devices in the object side. The maximal baud rate is 1 Mb/s. This baud rate depends on the RS-485 cable length. The converter does not interfere in the structure of transmitted data and is compatible with several industrial communication protocols, e.g. Modbus RTU, Modbus ASCII, a.s.l. In order to protect devices at both sides of interfaces, a galvanic separation is applied. A program controller of the virtual serial port COM for the computer PC is added to the set. It allows to exchange data by master programs with industrial objects
through the P10 converter.
The PD22 data concentrator is destined for telemetering computer systems as an intermediate element in the data exchange between the object side and the master system. The data concentrator speeds up the data exchange between devices and the master system. Moreover it allows to increase the number of devices connected to the system. Two serial ports are used for communication. The first port (Port 1) having two RS-485 interface systems, destined to communicate with devices working in the object. The second port (Port 2) has RS-485, RS-232 and USB interfaces, destined to communicate with the master system through wire links.
An asynchronous MODBUS character communication protocol has been implemented on the serial link. The concentrator has a real time clock.
Parameter set of the concentrator serial link:
– address: 1 … 247
– baud rate: 12 00, 2400, 4800, 9600, 19200, 38400, 57600, 1152 00 bit/s,
– working mode:ASCII, RTU,
– information unit: ASCII: 8N1, 7E1, 7O1, 7N2,
RTU: 8N2, 8E1, 8O1, 8N1
The data concentrator realises following functions:
– readout of process parameters values from devices which are accessible as concentrator parameters,
– archiving of process data with a defined frequency, which are made available on demand for the master system (390000 records),
– archiving of emergency events (44400 events),
– data exchange consisting in transmission of demands from the master system to the specific device, eg. readout or parameter record.
The PD51 converter is a digital device destined to convert the RS-232 interface into the industrial interface RS-485. It enables the increase of the RS-485 bus range and the number of devices in the network with a RS-485 bus. It ensures the automatic steering of the data flow direction. The RS-232 interface is commonly accepted but since it has a limited range and restricted working possibilities, it is not used in industrial data transmission systems. In almost automation systems and advanced control systems, the RS-485 interface is used because it has not such limitations and utilizes the differential procedure for data transmission, what is its main feature.
The PD51 converter is produced in two versions:
PD51-A – to be assembled on a rail, with opto-isolation,
RS-485/Ethernet converter PD8 type allows master devices to transmit data via a wireless Ethernet network to the devices with RS-232 and RS-485 interface. The converter has three operating modes: Real Port network service, serial bridge service with the UDP protocol, TCP Socket service. In the first and third mode, the switching master device of the system is a PC using Ethernet interface. In the second mode, the converter works with a device with Master function and RS-232 and RS-485 serial interfaces. The converter PD8 to work with Real Port network service requires the installation of a virtual serial port driver on a PC with Microsoft Windows. Thanks to the PD8 type converters, this driver provides the existing master systems, i.e. programs like Lumel Heat and Lumel Process, the ability to transmit data between devices with RS-485 or RS-232 interface using Ethernet network. When used in this way, the converter allows to work with one master computer in the given time. When using PD8 to support Modbus and Lumbus industrial protocols
– its correct interaction with master systems installed on a PC depends on the built-in mechanisms to control time intervals between the received transmission characters.
The N100 meter is a programmable digital instrument designed for the measurement of 3-phase, 3 and 4-wire power network parameters in balanced or unbalanced systems. The measured values are displayed on a two-color LED display. The meter enables control and optimization of the power electronic devices, systems and industrial installations. The meter provides measurement of: RMS of voltage and current, active, reactive and apparent power, active, reactive and apparent energy, power factors, frequency, the harmonics of current and voltage /up to 51st/, THD of voltage and current, averaged active and apparent power P Demand, S Demand, averaged current I Demand /15, 30 or 60 minutes/. Voltages and currents are multiplied by given voltage and current ratios of the measuring transformers. Power and energy indications take into account all programmed ratio values. The value of each measured value can be transmitted to the master system via the RS-485 or Ethernet interface. Three relay outputs signal the overflow of the chosen value, and the pulse output can be used for the consumption check of 3-phase active energy. The programmable analog outputs map the assigned parameter. The pulse input can be used to check the counters with the pulse outputs.
There is a galvanic separation between following units of the meter:
–– supply
–– voltage inputs
–– current inputs
–– RS485 interface
–– Ethernet interface
–– pulse input
–– pulse output OC
–– alarm outputs
–– analog outputs
The PD15 programmer is destined to program meters of N15 , N15Z, N17Z digital meter series, P15 and P16 transducers in the windows 9x/2000/NT/XP environment.
The programmer enables:
change of parameters of meters and transducers,
Meters and transducers calibration.
The N43 meter,assembled on a rail, is a programmable digital instrument designed for the measurement of 3-phase, 3 or 4-wire power network parameters in balanced or unbalanced systems. The measured values are displayed on a dedicated LCD display. The meter enables control and optimization of the power electronic devices, systems and industrial installations. The meter can be used for measuring: RMS of voltage and current, active, reactive and apparent power, active and reactive energy, power factors, frequency,THD and averaged values P Demand – “power guard”, S Demand, I Demand /15, 30 or 60 minutes/. Voltages and currents are multiplied by given voltage and current ratios of the measuring transformers /for indirect
connections/. Power and energy indications take into account all programmed ratio values. The value of each measured value can be transmitted to the master system via the RS-485 interface. Three relay outputs signal the overfl ow of the chosen quantity, and the pulse output can be used for the consumption check of 3-phase active energy.
There is a galvanic separation between following units of the meter:
– supply,
– voltage and current inputs,
– RS-485,
– USB,
– pulse output OC,
– alarm outputs.
Controller RE01 is designed to control temperature. It cooperates directly with resistance-type sensors Pt100, Pt1000 and NTC.
The controller has one output for on-off control and one output for alarm signalling. The on-off control employs the PID or on-off algorithm. For the on-off control, the minimum on and off times for the output may be set.The control output has a changeover contact and allows for the direct control of low-power objects.
An innovative SMART PID algorithm is implemented in the controller.In addition, the controller has a binary input to control the controller’s functionsand an internal sound signalling device.
The RE19 dual loop controller/programmer is destined to control the temperature and other physical quantities, e.g. pressure, humidity, level or flow converted into an electrical signal.
The controller can operate two controlled systems or control two physical quantities in one object, e.g. temperature and humidity or a two-zone furnace.
The controller is available in three versions:
RE19S – for control with fixed set-point, with regard to the so-called soft-start and the possibility to switch the set-point by the logic input,
RE19P – for programmed control, in which the set-point changes in time, acc. to a chosen program – 15 programs with 15 segments in each,
RE19V – for stepper motor control – two control algorythms at choice, with or without a reflexive signal.
