Technical Data
CompareEnergy & Application Manager
| Measuring Principle | |
| Measuring principle | Flow and energy manager |
| Function | Gas, liquids, steam and water bilancing for industrial energy management |
| Calculations | mass/heat quantity heat quantity difference for gases: standard volume, heating value, mass |
| Number of applications | 3 |
| Data storage | no |
| Calculation standards | IAPWS IF97 AGA8 / SGERG88 Nx/9 API 2540 customer spezific tables ISO 5167 |
| Communication | 1 x RS232 2 x RS485 PROFIBUS DP M-Bus Modbus RTU |
| Power supply | Not defined |
| Loop power supply | 90...250V AC 50/60 Hz 20...28V AC 50/60 Hz 20...36V DC |
| Protection class | IP20 |
| Input | 2...8x PFM 2...8x I 2...8x Impulse (aktiv) 2...6x RTD 2...8x Impulse (passiv) |
| Output | 3...9x transmitter power supply |
| Dimensions (WxHxD) | 135 x 108 x 114 mm (5.32" x 4.25" x 4.49") |
| Operation | Soft keys RS232 and operation software ReadWin 2000 |
| Display | LC-Dot-Matrix 160 x 80 Punkte |
| Software functions | International calculation standards for gas, liquids, steam and water |
| Certificates | ATEX Ex ia |
Product Overview
The RMC621 flow and energy manager uses flow, pressure, temperature and density to calculate the standard volume, mass and energy flow of natural gas and special gases. Depending on the medium, energy values are calculated and expressed using international standards (IAPWSIF97, SGERG88), the real gas equation of state (SRK) or special tables. When measuring differential pressure, the flow compensation factor is calculated over the entire operating range of the flow sensor.
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Advantages
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Suitable for gases, liquids, steam and water
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Up to 3 measurement applications can be calculated simultaneously for different fluids
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Process calculations such as density, enthalpy and compressibility are based on equations and built-in material data tables for high precision
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Calculation standards: IAPWS-IF 97, SGERG88, AGA8, real gas equation of state (SRK, RK), ISO 5167, tables
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Usable with all common flow measuring systems (vortex, turbine, MID, orifice plate, differential pressure, etc.)
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Density signal input compensation
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Logging function records date and time of error messages and parameter changes
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Areas of application
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Energy calculation management
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Chemical industry
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Heating and air conditioning
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Pharmaceutical industry
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Food and beverages
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Plant and instrument manufacturing
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Oil and petrochemicals
Spare Parts & Accessories 28
28 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| RMC621X- | Spare part RMC621X- | Enquire |
| RMC621X- | Spare part RMC621X- | Enquire |
| 71402350 | Panel mounting accessoryfor RMA42x/RMx621/RTA421/RN221N/TMT12x | Details |
| 51004063 | terminal blockAnalogue terminal 1 (PFM/pulse/analogue/loop power) | Details |
| 51004064 | terminal blockAnalogue terminal 2 (PFM/pulse/analogue/loop power) | Details |
| 51004067 | terminal blockTerminal temperat.1(Pt100/Pt500/Pt1000) | Details |
| 51004068 | terminal blockTerminal temperat.2(Pt100/Pt500/Pt1000) | Details |
| 51004907 | terminal block(Pt100/Pt500/Pt1000) | Details |
| 51004908 | terminal block(Pt100/Pt500/Pt1000) | Details |
| 51004909 | terminal blockPFM, pulse, loop power | Details |
| 51004910 | terminal blockPFM, pulse, loop power | Details |
| 51004911 | terminal blockTerminal RMx/FML621 dig./open collecto | Details |
| 51004912 | terminal blockTerminal plug-in RMx/FML621 relay | Details |
| 51005953 | terminal blockPFM, impulse, loop power | Details |
| 51005954 | terminal blockTerminal plug-in 4pol.SMSTB2,5 82/81/10/ | Details |
| 51005955 | terminal blockTerminal plug-in Ex4pol.SMSTB2,5 1/5/6/2 | Details |
| 51005956 | terminal blockTerminal plug-in Ex4pol.SMSTB2,5 3/7/8/4 | Details |
| 51005957 | terminal blockTerminal plug-in 4pol.SMSTB2,5 82/81/10/ | Details |
| 51005958 | terminal block(Pt100/Pt500/Pt1000) | Details |
| 51005959 | terminal blockPFM, impulse, loop power | Details |
Configurator / Comparison
Source:Endress+Hauserwebsite public information
Manuals & Documents 12
All documents for this model12 documents · click to expand
RMx621/FML621 Chinese
RMx621/FML621 Chinese
Operating instructions Flow and energy manager RMC 621 English
RMx621 / FML621 English
M-Bus for RMx621 English
RMx621/FML621 Profibus module English
Operating instructions Flow and energy manager RMC 621 English
Appendix to operating instructions RMx621 English
RMx621/FML621 Profibus module English
M-Bus for RMx621 English
RMx621 Operating Instructions English
M-Bus for RMx621 English
Case Studies
Municipal Wastewater Treatment · data manager — Application Case
Site Conditions
This is a Municipal Wastewater Treatment customer whose plant is at the inlet, biological and outlet stages of a municipal plant. The main task was centralised data acquisition, storage and forwarding to management platforms.
The Problem
The difficulty lies in high solids and corrosive fractions, with large diurnal flow swings; at the same time effluent parameters drift and probes foul with sludge and biofilm. Specification therefore means selected by channel count, storage depth and forwarding protocol.
What We Did
We took a system components range approach — supplying as a full cabinet and signal-chain configuration. Delivery was built around selected by channel count, storage depth and forwarding protocol, with point-by-point checks on: stable compliance with Grade 1A discharge limits and online data reporting.
Operating Outcome
In service the system performs as intended — automatic backfill after outages, greatly improving data completeness, with routine maintenance falling noticeably.
Food & Beverage · data manager — Application Case
Application Context
dosing, pasteurising, filling and CIP stages is a typical Food & Beverage duty. The project started from data manager, focusing on centralised data acquisition, storage and forwarding to management platforms.
Process Constraints
frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles, and syrups, dairy and beverages that scale easily, under strict hygienic requirements only amplify it. The data manager specification must therefore cover selected by channel count, storage depth and forwarding protocol.
Delivery Approach
Delivery was handled as the system components range — supplying as a full cabinet and signal-chain configuration. Execution centred on selected by channel count, storage depth and forwarding protocol, together with food-safety and hygienic design per 3-A / EHEDG.
Field Results
Operation shows the benefit clearly — automatic backfill after outages, greatly improving data completeness, with confidence in this measuring point improving markedly.
Chemical & Pharmaceutical · data manager — Application Case
Customer Profile
The typical setting in Chemical & Pharmaceutical is reactors, metering vessels and finished-product tanks. The measuring point is data manager; the focus is centralised data acquisition, storage and forwarding to management platforms.
Key Difficulties
Conditions are highly corrosive media with solvents and crystallisation, partly in explosive atmospheres and, on top of that, corrosion plus Ex protection shortens instrument life and makes downtime costly, which a standard configuration cannot handle for long. The design therefore starts with selected by channel count, storage depth and forwarding protocol.
Implementation
The scope ran through the system components range: supplying as a full cabinet and signal-chain configuration. Technically it hinges on selected by channel count, storage depth and forwarding protocol, and on these requirements: Ex certification and GMP traceability of records.
Customer Benefit
In practice this means automatic backfill after outages, greatly improving data completeness, which cut the workload on the site maintenance team.
Power & Energy · data manager — Application Case
Project Background
The project covers boiler feedwater, turbine condensate and FGD/DeNOx systems. The work centres on data manager and the core task is centralised data acquisition, storage and forwarding to management platforms.
Operating Challenges
The medium and duty are characterised by high temperature and pressure with both steam and saline water, and drift under high temperature and pressure, with very costly unplanned outages. So data manager cannot be specified generically — it calls for selected by channel count, storage depth and forwarding protocol.
Solution
The Ainstru engineering team worked through the system components range: supplying as a full cabinet and signal-chain configuration. The configuration involves selected by channel count, storage depth and forwarding protocol, with these requirements in view: compliance with power-industry codes and unit availability targets.
Results
Since start-up the system has run steadily; the practical result is automatic backfill after outages, greatly improving data completeness.
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