ENDRESS+HAUSER RMC621 RMC621-A31BAA1D11 Product Description

Overview

ENDRESS+HAUSER RMC621 RMC621-A31BAA1D11 is a flow and energy manager manufactured by Endress+Hauser, the full code RMC621-A31BAA1D11 defines the configuration of this unit. The ENDRESS+HAUSER RMC621-A31BAA1D11 is a DIN rail mounted universal energy computer, supporting multi-parameter compensation and energy calculation for gas, liquid, steam and water media. This RMC621 energy manager serves as a reliable E+H RMC621 flow energy computing unit, widely used for energy balance, flow compensation and heat metering in industrial energy measurement systems of the E+H RMC621 flow energy computing unit.

Features

This ENDRESS+HAUSER RMC621-A31BAA1D11 supports up to 3 independent calculation applications simultaneously for the E+H RMC621 flow energy computing unit. It adopts internationally recognized calculation standards including IAPWS-IF97, AGA8, SGERG88 for gas and steam compensation. It accepts 4-20mA, PFM, pulse and RTD temperature signals, with configurable analog, pulse and relay alarm outputs. It integrates RS232, RS485 communication ports supporting Modbus RTU, M-Bus and PROFIBUS DP protocols. The dot matrix display and local keypad enable on-site parameter setting and measured value viewing. The ENDRESS+HAUSER RMC621-A31BAA1D11 is discontinued by the manufacturer, supplied as spare part for maintenance and retrofit of existing energy metering loops of the RMC621 energy manager.

Specs

The ENDRESS+HAUSER RMC621-A31BAA1D11 series: RMC621 flow and energy manager. Input: analog 4-20mA, PFM, pulse, Pt100 RTD. Output: analog 4-20mA, pulse output, relay alarm contact. Communication: RS232, RS485, Modbus RTU, M-Bus, PROFIBUS DP. Calculation standards: IAPWS-IF97, AGA8, SGERG88, SRK. Mounting: DIN rail NS35. Protection rating: IP20. The ENDRESS+HAUSER RMC621-A31BAA1D11 complies with CE and relevant energy metering standards as a RMC621 energy manager.

Principle

ENDRESS+HAUSER RMC621 RMC621-A31BAA1D11 collects flow, pressure, temperature signals from field transmitters. The ENDRESS+HAUSER RMC621-A31BAA1D11 internal processor executes gas/steam compensation algorithms to calculate standard volume, mass flow and heat quantity. The computed results can be converted to analog output, trigger relay alarm or uploaded to SCADA and PLC systems via serial bus. The built-in loop power supply provides excitation power for connected field instruments. The multi-media compensation structure of the E+H RMC621 flow energy computing unit realizes accurate energy balance without extra computing hardware.

Applications

This ENDRESS+HAUSER RMC621-A31BAA1D11 is widely used in heating stations, chemical plants, natural gas metering stations, steam supply systems and water treatment facilities. It is applied for gas standard volume compensation, steam heat metering, liquid energy balance and consumption statistics. It is used for spare replacement and on-site upgrade of legacy RMC621 energy measurement systems. The ENDRESS+HAUSER RMC621 RMC621-A31BAA1D11 delivers dependable multi-parameter compensation and energy metering for industrial energy management as a proven RMC621 energy manager.