ADAMCZEWSKI Elektronische Messtechnik GmbH
About us
Adamczewski Electronic Messtechnik GmbH specializes in the development, production and worldwide marketing of electronic measuring transducers in analogue and digital technology. Our product portfolio is expanded by power measurement technology, energy management and EMC services.
Products & services
AD-VL 500 FE
The AD-VL 500 FE monitor module is a display unit and data logger for front panel installation. It has up to 8 analogue standard signal inputs. The inputs can be configured as current or voltage inputs. Counter values can be derived simultaneously from the analogue signals by means of adjustable switching thresholds. A scaled measured value display with freely definable units is possible. The display is done by freely configurable display elements such as numeric display, bar graph, time diagram, drag pointer, LEDs, etc. The unit is supplied with predefined standard display windows. All signals can be logged cyclically in the unit's own memory. The logged data are stored as daily files on an internal micro SD card. They can be retrieved at any time with a USB stick or downloaded via the network interface. The unit can be configured either via the integrated web server of the network interface or via the configuration software AD-Studio. The configuration software is available free of charge on the ADAMCZEWSKI website. The various interfaces (RS485/LAN) make it easy to integrate the device into your own data networks in order to read out measurement data in real time.
EMC services
Years of experience in EMC In order to be able to guarantee high product quality and reliability of electronic products, electromagnetic compatibility represents an important fundamental pillar. Since Adamczewski GmbH has a very high quality standard for its products, competence in EMC is indispensable. This competence has been acquired through years of experience in the development of our own products as well as customer-specific developments. Up-to-date measurement technology and trained personnel are a matter of course to meet this high quality standard. The proof: a high-performance product range. EMC as a service As the request of our customers not only for product development but also for EMC services kept increasing, Adamczewski company decided to open the in-house EMC laboratory for customers. Use our EMC measurement technology for measurements accompanying development, EMC product improvements or just as preparation for the final test in the accredited laboratory. All measurements are done in compliance with the standards and the measuring equipment and personnel are up to date. A full absorber chamber with 3 m antenna distance guarantees measurement results with high repeatability. Performances Conducted and radiated EMC measurements for industrial and residential equipment. EMC consulting, EMC troubleshooting and EMC optimization.
AD-LU 650 GT
The AD-LU 650 GT is a digital measuring transducers for the acquisition of all measured variables in the three-phase network. In addition to the fundamental oscillations, the harmonics up to the 32nd harmonic are also measured for currents and voltages. In addition to the three phase currents, the current in the neutral conductor can also be measured. Any measured variable can be assigned to each analog output. Each digital output can be assigned its own function such as limit value monitoring or pulse output for an energy meter. All measured data can be read out via the Modbus-RTU interface. With an optional display device such as the AD-MM 400 FE or the AD-MM 500 FE, the data can be displayed and the device can be configured if necessary.
AD-VC1 GVD
The digital multi-function measuring transformers of series VarioCheck AD-VC 1 are freely programmable digital measuring transducers with two analogue outputs and up to 2 limiting value relays. Extensive standard equipment and additional options solve almost all imaginable tasks of a modern evaluation. All measuring ranges and outputs can be freely parameterized. This can be carried out via the optional operating modul AD-VarioControl or via the programming software AD-Studio. VarioCheck AD-VC 1 fulfils all tasks of a universal and secure measuring value recording through integral function modules such as limiting value messages, freely adjustable hysteresis, selectable relay functions, time-delayed switching, automatic or manual simulation modus, free linearizing curves and a wide range of supply voltage.
VarioControl /VarioConnect
The removable control modules AD-VarioControl are used to display measured values of a base device (transmitter, isolation amplifiers ...) with a relevant interface. After plugging in, which is also possible during operation of the base device without restrictions, the basic device is automatically read out and the corresponding measured value is displayed. In addition to the display function, access to the parameters and controller functions of the basic device is also possible. The parameter settings can be loaded into the control panel using the backup function and can be restored on a different base device of the same type. Establishment of a transmitter is usually necessary only once in the operating period of a device, therefore a display and operating elements are not permanently necessary for each device. By using the AD-VarioControl in connection with compatible basic equipment, operating elements and displays on each individual device can be dispensed with. This way, the installed devices are tamper-proof and more cost-effective. The AD-VarioConnect has a fieldbus interface with the protocol Modbus-RTU via RS485. All measured values of the basic units are available above this.
AD-LU 20 GT
The digital power and energy meter AD-LU 20 GT measures all standard values of the three-phase system (active-, reactive-, apparent-power, voltage, currents, harmonics, power factor etc.) and provides this via an Ethernet interface. The measured values can be read out via Modbus-TCP protocol. In addition, these measured values are displayed on an integrated small WEB server. The device can also be parameterized via this WEB server. The AD-LU 20 GT is also equipped with an RS485 interface. This RS485 interface with Modbus-RTU protocol is mainly suitable for connecting an external display (AD-MM 400), but can also be used to read data or parameterize. The current is fed via the front-mounted through-current converters, which can measure up to 20 A directly. However, additional current transformers for larger currents can also be connected at any time. It is possible to measure symmetrical or unbalanced 4-wire networks and symmetrically loaded 3-wire networks. Due to the integrated, efficient wide-range power supply, the device operates in a large supply voltage range and does not heat up very much.
AD-LU 40 GT-PN
The digital power converter AD-LU 40 GT measures all values of the three-phase power grid such as current, voltage, energy, active, reactive, apparent power and frequency and makes this data available via a fieldbus. The device is therefore ideally suited for integration into energy management systems. The ProfiNet variant contains a 2-port switch for direct forwarding to the next device. 3- or 4-wire networks can be measured. 4-wire networks may have balanced or unbalanced load. 3-wire networks must have balanced load. The AD-LU 40 GT is powered by its measuring voltage L1. However, a variant with separate supply terminals and wide-range power supply is also available (AD-LU 40-S GT). The current measurement takes place via the throughput converters attached to the front. For the measurement of higher voltages or currents, external converters can be connected at any time. LEDs on the front panel signal the operating state and the data traffic. The compact design and the high performance combined with low energy consumption allow it to be used in almost any application. In addition, the device has a front-sided RS485 interface to which, for example, the TFT display AD-MM 400 can be connected. Thus, without any great effort, all measured values can be displayed. Application Measurement and monitoring of all electrical characteristics in electrical systems. Detection of load profiles for energy management systems, e.g. ISO 50001. Recording the energy consumption of individual consumers. Monitoring of voltage quality variables, e.g. Harmonics. Attention: This is a Class A product according to EN 55011. Additional EMC actions may be necessary when used in small businesses or in residential areas. Specific characteristics - Fieldbus interface for PROFINET or PROFIBUS - RS485 interface for connecting a TFT display
AD-TV 420 GVD
The isolation amplifier AD-TV 420 GVD serves the galvanic separation of analogue signals and of transmitter signals. When a 2-wire transmitter is connected, this will be supplied directly via a galvanically separated and current-limited supply voltage. All measuring ranges and outputs can be freely parameterized. This can be carried out via the optional operating panel AD-VarioControl or via the programming software AD-Studio. The wide bipolar input measuring range makes this buffer amplifier into the universal type for almost all applications in the area of standard signals and beyond. All supply ranges are covered with the wide range power pack. Application Amplification, transformation and electrical isolation of current or voltage signals Specific characteristics - bipolar current input (+/- 0,5 mA bis +/- 50 mA) - bipolar voltage input (+/- 1 V bis +/- 100 V) - Power supply for 2- / 3-wire transmitters - 2 bipolar current or voltage output - Operating module as an accessory - 23 mm narrow housing with detachable terminal clamp
AD-STVEX 710 GVD
The AD-STVEX 710 GVD supply isolating amplifier is used for the intrinsically safe supply of a transmitter installed in the hazardous area. The supply isolation amplifier itself is installed as associated electrical equipment in the non-hazardous area, i.e. the safe area. The signal is galvanically isolated and transmitted to the non-hazardous area. The passive input also allows active signals from the hazardous area. The active current output, the current sink output and the voltage output facilitate the adaptation to the following signal input. The device can be operated at 24 V DC or 230 V AC. Application Supply of a transmitter in the hazardous area and galvanic isolation of the signal. Specific characteristics - Supply of a transmitter up to zone 0 (gas) or 20 (dust) - Active current output, current sink output and voltage output - Open-circuit detection according to Namur recommendation NE43 - Further parameters configurable via configuration software AD-Studio - Detachable, coded connection terminals - Zero and full scale adjustment possible via front panel keys
AD-FM 600 GT
The AD-FM 300 GT (1-channel) and AD-FM 600 GT (2-channel) are freely programmable frequency/analog measuring transducers with integrated display unit. Due to its multifunctional processing of the input frequency and the up to 2 analog outputs (current/voltage) per channel or the evaluable digital outputs, the device is optimally suited for the display of instantaneous flow rates with simultaneous evaluable counting pulse output for water meters with main and sub meters. Especially for large water meters with bypass, a scaled summation is integrated in the AD-FM 600 GT. Both the instantaneous flows and the counted quantities are output. A low level suppression is shiftable. Application The main area of application is the through-flow measuring at water meters. Further applications are the measuring of rotation speed or energy consumption. Specific characteristics - 1 (AD-FM 300 GT) or 2 (AD-FM 600 GT) channels in just one housing - Inputs: NAMUR, contact, open collector, 3-conductor Opto, 24V activ - Analog outputs: each channel 1 current and 1 voltage (synchronous) - Digital outputs: relay respectively optocouple (puls function or limit contact) - Scaled summation and shiftable low level suppression - Programming directly on the device or free programming software - DIN rail mounting
AD-LU 410 GT
Especially in power plant operations but also in many other switchgear areas, active power for the optimization and control of processes must be continuously measured. The power converter AD-LU 410 GT is always adapted to the individual case by means of plant-specific adaptations. Due to the fully analog design, fast power measurements are possible, e.g. the detection of short-time load changes. The nominal voltage, the power to be measured and the desired output signal are required by the customer. The exact power values are available as standard signal for further processing.
AD-SW 3 GL
The AD-SW 3 GL is used to measure high AC currents, such as secondary currents from large current transformers (e.g. 0...5A AC). The device contains 3 measuring transformers for contactless measurement of all three phase currents. The lines to be measured are fed horizontally through the device. Three small signal outputs are available for evaluation, which represent the measured current. The three output signals are galvanically coupled but separated from the input and the supply with high isolation. The AC sine wave voltage outputs, which follow the input signal 1:1 up to the maximum bandwidth of the device, can be customized. The integrated wide range power supply allows a wide supply voltage range with low self-heating.