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.

Display and recording of data from connected sensors—data logger function
One- or two-point calibration of connected sensors, password-protected access
Color touchscreen, adjustable brightness, intuitive menu, multiple language options
Output simulation in manual control mode
Interfaces: 1x USB, 2x RS485 (Modbus)
Power supply: 24 V DC or 230 V AC
Comprehensive self-diagnostics (voltage and current, internal humidity, etc.)
Integrated real-time data logger for recording measured data
Event logging in the station log
Internal GSM/GPRS data module (E2-G)
Sending SMS alerts (limit violations, self-diagnostics – E2-G)
Visualization of measured data in the form of graphs and tables on the server (E2-G)
Data access and remote parameter configuration via a web browser (E2-G)
High IP67 protection rating, solid metal casting
Option to connect two independent electrochemical sensors

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Description

The two-channel design allows for the simultaneous connection of sensors measuring two identical or different variables, thereby reducing the cost per measurement point.
Measured values are continuously stored in the controller’s internal memory and can be transmitted to a server via the internal GPRS module (E2-G version). The large touchscreen and physical keypad contribute to easy and intuitive operation of the unit. This is further aided by a clear control menu available in several languages. The robust metal enclosure with a high IP67 rating and a range of self-diagnostic procedures contribute to the high operational reliability of this versatile unit. The unit also allows for the connection of two independent electrochemical sensors.

Applications

Monitoring and control of technological processes in water supply and industry
Display of measured values and sensor calibration
Data acquisition and collection for subsequent evaluation

Technical specifications

Technical Specifications	E2 - Calibration and Control Unit for Water Supply
Number of Measurement Channels	1 to 2 main parameters (pH, dissolved oxygen, redox, conductivity, ISE) + temperature
Data Memory Capacity	More than one year of recording, cyclic rollover
Display	RGB, 3.5” size, 320x240 px resolution, adjustable backlight
Keypad	8 keys, mechanical key response
Binary Inputs	4 inputs, active state—closed with GND (OK, contact)
Binary Outputs	2x 250 V, 4 A relays; 2x 0/12 VDC half-wave relays, 2 A
Analog Outputs	2 active, galvanically isolated 4–20 mA outputs
Selectable Power Supply	12–24 VDC or 180–250 VAC/50 Hz
Operating time from internal rechargeable battery	> 5 hours
Controlled power supply for connected sensors	2 sections, 6 to 18 V DC
Self-diagnostics	Power supply current and current drawn by sensors, supply voltage, internal temperature and relative humidity, ...
Real-time clock	Continuous synchronization via GPRS
GSM modem	Quad-band 850/900/1800/1900 MHz (E2/G)
Operating temperature range	-20 to +60 °C
Dimensions (H x W x D)	130 x 160 x 85 mm
Weight	1,480 g including backup Li-Ion battery
Protection rating	IP67, rugged die-cast metal

Downloads

Price List Cenik 2026 V101 Voda A4

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