Flow and thermal energy calculator - ERW700

The ERW 700 flow and heat energy calculator uses measured input variables (flow rate, differential pressure, pressure, temperature, density) to calculate the resulting variables such as volume, corrected flow rate, mass flow rate and mass of liquids, gases and steam.

It can be combined with conventional flow measurement methods (differential pressure flowmeter, vortex flowmeter, ultrasonic flowmeter, etc.) and offers high accuracy for calculating density, enthalpy and compressibility. Key features include:

• Compatible with various sensors (pressure, temperature, flow)
• Fast computing thanks to 24-bit analog-to-digital converters
• Data storage capabilities, flexible display, and specific functions for applications such as bi-directional metering and condensate monitoring
• Robust construction with IP65 protection, ideal for demanding environmental conditions, and designed for easy integration into energy management systems.

High-precision flow and energy calculator
The ERW 700 calculator is designed to provide accurate and reliable measurements for liquids, gases and steam. It excels in thermal energy billing and energy monitoring, ideal for complex industrial applications such as heat and cold production. Thanks to its ability to calculate density, enthalpy and compressibility with accuracy, it guarantees unrivalled performance.

Extensive sensor compatibility
Whether you use differential, vortex, ultrasonic or coriolis pressure transmitters , the ERW 700 integrates easily into your installations. It supports Pt100/500/1000 temperature measurements, and offers inputs for currents, pulses and frequencies. This provides maximum flexibility for custom configurations to suit your energy requirements.

Sophisticated data acquisition and storage
The ERW 700 features advanced storage functions: instantaneous, periodic or fixed-date data logging. Set-up is simple, accessible via PC software or a front-mounted keypad. What's more, the backlit graphic display makes it easy to read measurements and parameters, even in poorly lit environments.

Robust, safe design
With a tough ABS plastic housing, the ERW 700 offers IP65 protection, making it perfect for demanding environmental conditions. It is surge-protected and password-protected, ensuring maximum reliability and security for your critical applications. It requires no regular maintenance, and calibration is recommended only every five years.

Additional functions and expansion modules
Customize your ECU with additional modules for analog and digital outputs (Modbus, MBus), and auxiliary power supplies. Specialized functions such as condensate monitoring, bi-directional metering and tariff modes make the ERW 700 an essential tool for optimized energy management.