FIEDLER > Units for control and telemetry > Control units

Control units

Technology control and monitoring systems enable the tracking of operating parameters, the automation of processes, and the collection of real-time data. They are used in industry, water management, and other fields where reliable equipment monitoring and efficient operational management are essential.

External input/output modules for control units Flow measuring instruments Modular control and logging units Multichannel control and logging units Quality measuring instruments

External input/output modules for control units

External input/output modules allow control units to be expanded with additional sensors and control elements. They ensure flexible device connectivity and reliable data collection and control in a variety of applications.

AIM600, AIM615 - 4-20 mA/RS485 Converters

AIM600, AIM615 - 4-20 mA/RS485 Converters

The AIM600 and AIM615 transducers are characterized primarily by high measurement accuracy provided by the 24-bit converter, as well as low quiescent current consumption, a supply voltage suitable for operation from a 12 V battery, galvanic isolation of the inputs from both the supply voltage and the RS485 communication line, and, last but not least, high operational reliability without any mechanical adjustment elements.

GX200 - Current Loop Galvanic Isolation Module

GX200 - Current Loop Galvanic Isolation Module

A galvanic isolation module for 0–20 mA and 4–20 mA current signals that does not require an external power supply, designed for two-wire transducers.

B3OK – ISCO Converter

B3OK – ISCO Converter

The B3OK converts the three binary outputs of ISCO devices to inputs for FIEDLER telemetry units (H1, H3, and others). It enables simple and secure connection of ISCO devices to data logging and control systems without the need for additional modules.

OPTO3 - Pulse Signal Splitter

OPTO3 - Pulse Signal Splitter

The OPTO3 galvanically isolated pulse splitter has one pulse input for connecting a signal from a water meter or electric meter sensor and three mutually galvanically isolated pulse outputs.

H520-B - Level Display Module

H520-B - Level Display Module

The H520-B display module is designed to provide an approximate indication of the liquid level. The module does not contain a liquid level sensor; it merely displays the liquid level data received from a connected control system via the RS485 bus.

DV2 - Binary Input and Output Module

DV2 - Binary Input and Output Module

The DV2 external input/output module expands the number of binary inputs and relay outputs. Up to two DV2 I/O units can be connected to the H3 station via the RS485 interface. Up to 10 DV2 modules can be connected to the H3 and H7 series units.

MAV421, MAV422 - Modules with 4–20 mA Output

MAV421, MAV422 - Modules with 4–20 mA Output

The MAV421 and MAV422 external modules are RS485 converters operating under the FINET protocol, providing galvanically isolated active current outputs of 4–20 mA or 0–20 mA. The MAV421 module has one current output (I1), while the MAV422 module has two current outputs (I1 and I2).

PO2D - Combined Surge Protection

PO2D - Combined Surge Protection

This is a combined two-stage surge protection device for a two-wire signal line and a power line.

Flow measuring instruments

Flow meters are used to accurately monitor the volume of fluids in pipes or open channels. They are used in water management, industrial operations, and other applications where reliable and continuous flow data is important.

H3, H7 - Multichannel Recording and Control Units

H3, H7 - Multichannel Recording and Control Units

Versatile multi-channel data acquisition and control unit with GSM/GPRS (Wi-Fi) technology—Data Logger. The unit is suitable not only for monitoring and controlling water supply facilities (water reservoirs, pumping stations, transfer or metering shafts, water treatment plants, and wastewater treatment plants), but also for environmental monitoring. The unit offers high reliability, measurement accuracy, low power consumption, and automatic transmission of measured data to a server database.

Q2 - Flow Meter for Open Channels

Q2 - Flow Meter for Open Channels

A four-channel evaluation unit for measuring instantaneous flow rate and total volume flow in open-channel cross-sections. The Q2 flowmeter contains predefined consumption equations that express the relationship between water level and instantaneous flow rate for all common weirs and Parshall flumes. The Q2 unit can also be used as a universal level meter to which a variety of sensors can be connected.

Q2/KDO - Velocity Flow Meter

Q2/KDO - Velocity Flow Meter

The flow measurement system consists of a Q2/KDO or Q2-G/KDO telemetry unit, a flow velocity sensor, and a level sensor for the measured medium.

M2001Q - Flow Meter

M2001Q - Flow Meter

The M2001Q recording unit is designed to measure instantaneous flow rate and calculate the volume of water that has flowed through the system. Depending on the type of connected measuring probe or sensor, flow can be monitored in an open channel (if an ultrasonic or pressure level sensor is connected) or in a pipe (the unit is connected to the output of an inductive flowmeter).

Modular control and logging units

Modular control and data-logging units are used to control industrial processes and to collect and store data from measurement points. Thanks to their modular design, they allow for flexible expansion and adaptation to specific operational needs.

C8 - Modular Control and Data Logging Unit

C8 - Modular Control and Data Logging Unit

The C8 modular telemetry unit is primarily designed for controlling technological processes in the water supply industry. Its software supports flow measurement using pulses as well as calculations based on consumption equations, and also controls pumps and blowers, including stand-in units. It features a large number of analog and binary measurement inputs and outputs. It includes integrated PID controllers and allows for data hosting on a server, including full remote configuration of the unit via a web browser.

Multichannel control and logging units

Multichannel control and data logging units enable the simultaneous control of multiple technological processes and the collection of data from various measurement channels. They ensure effective monitoring, flexible management, and reliable storage of measured values.

H3, H7 - Multichannel Recording and Control Units

H3, H7 - Multichannel Recording and Control Units

Versatile multi-channel data acquisition and control unit with GSM/GPRS (Wi-Fi) technology—Data Logger. The unit is suitable not only for monitoring and controlling water supply facilities (water reservoirs, pumping stations, transfer or metering shafts, water treatment plants, and wastewater treatment plants), but also for environmental monitoring. The unit offers high reliability, measurement accuracy, low power consumption, and automatic transmission of measured data to a server database.

Quality measuring instruments

Water quality measurement instruments are used to monitor and evaluate the physical and chemical parameters of water. They enable reliable quality control in water management, industrial operations, and other applications where accurate and continuous data are essential.

H3, H7 - Multichannel Recording and Control Units

H3, H7 - Multichannel Recording and Control Units

Versatile multi-channel data acquisition and control unit with GSM/GPRS (Wi-Fi) technology—Data Logger. The unit is suitable not only for monitoring and controlling water supply facilities (water reservoirs, pumping stations, transfer or metering shafts, water treatment plants, and wastewater treatment plants), but also for environmental monitoring. The unit offers high reliability, measurement accuracy, low power consumption, and automatic transmission of measured data to a server database.

M2001-E - Display and Calibration Unit

M2001-E - Display and Calibration Unit

The M2001-E single-channel display and calibration unit is designed for continuous measurement of dissolved oxygen, pH, redox potential, conductivity, or turbidity. The unit communicates with the connected sensor via an RS485 bus using the FINET or Modbus RTU protocols. The communication cable is terminated with a connector featuring a high IP67 rating and is included with the measurement system. If necessary, the communication cable can be extended up to 500 m.

E2 - Calibration and Control Unit for the Water Supply Industry

E2 - Calibration and Control Unit for the Water Supply Industry

The Process Controller E2 is a control unit and data logger designed for the numerical and graphical display and recording of data. It acquires this data from connected sensors for dissolved oxygen, pH, REDOX potential, turbidity, conductivity, ISE, and temperature. It also calibrates these sensors and controls connected equipment using internal relays and 4–20 mA current outputs.

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