ERGOMERA-125.AV Ultrasonic Dual-Channel Heat Meter

What It Measures

• Heat-transfer fluid flow rate using the ultrasonic transit-time method

• Temperature in the supply pipeline, return pipeline, and cold-water line

• Pressure in the supply pipeline, return pipeline, and make-up water line, or liquid level

• Thermal energy and thermal power

• Temperature difference and differential pressure

• Operating time, event logs, and process parameters

Key Advantages

✔ Ultrasonic measurement technology — no moving parts and reliable operation even with contaminated heat-transfer fluid

✔ High measurement accuracy — accuracy class 2 according to DSTU EN 1434, with sensors polled 16 times per second

✔ Dual-channel configuration — supports bidirectional and reverse flow measurement

✔ Installation under pressure — selected versions can be installed without shutting down the pipeline

✔ Minimal maintenance — sensors can be serviced without draining the heat-transfer fluid

✔ Near-real-time data transmission — ready for remote monitoring and automated data collection

✔ Extensive data archives — hourly, daily, and monthly records, as well as event and alarm logs

✔ Easy integration — open communication protocols and compatibility with virtually any SCADA system

Design and Available Versions

• Threaded flow sensors — DN20 to DN40

• Flanged flow sensors — DN20 to DN1200

• Flangeless weld-in flow sensors

• Type V2 — installation in an existing pipeline, DN250 to DN3200

• Type V2-RShVS — pressurised installation with an airlock-type mounting assembly, DN250 to DN3200

Flow sensor materials: CW617N, AISI 304, AISI 316, cast iron, and Steel 20.

Ingress protection: calculator unit — IP54; ultrasonic flow sensors — IP68.

Technical Specifications

Communication Interfaces and System Integration

The following options are also supported:

• Wireless M-Bus

• LoRaWAN

• NB-IoT

• M-Bus

• Pulse inputs and outputs

Data Archiving

The instrument’s non-volatile memory provides storage for the following data:

The archives contain measurement results for thermal energy, flow rate, temperature, and the volume or mass of the heat-transfer fluid. They also record operating time, downtime, and the duration of alarm or abnormal operating conditions.

Applications

• Combined heat and power plants

• Thermal power plants

• Industrial and municipal boiler houses

• Central and individual heating substations

• Industrial facilities

• District heating networks for monitoring heat-transfer fluid transportation and distribution losses

Configuration for a Specific Facility

The configuration of the ERGOMERA-125.AV is selected according to:

• the heat supply system layout;

• pipeline diameters;

• flow measurement range;

• heat-transfer fluid temperature and pressure;

• the required number of measurement channels;

• the selected data transmission method.

The system package may include:

• one or two ultrasonic flow sensors;

• temperature sensors with protective thermowells;

• pressure sensors;

• RS485 or Ethernet communication modules;

• a GSM modem;

• a control and mounting cabinet;

• software for reading, processing, and analysing archived data.

ERGOMERA-125.AV — One Instrument for Metering, Monitoring, and Digitalisation of a Heat-Supply Facility

The appropriate version, nominal diameter, metering configuration, and data transmission equipment are selected according to the technical parameters and operating requirements of each facility.