EngyCal RS33 steam calculator

Steam calculator for one measuring point with one pulse/analog input for flow and two RTD/analog inputs for temperature/pressure

RS33

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Specs at a glance

Input

1x Puls/Analog for flow
2x RTD/Analog for temperature and pressure
Loop power supply 24V DC (+/-16%)
Output

1x 4...20mA
2x digital (Open Collector)
Display

160 x 80 Dot-Matrix LCD with white backlit
colour change in case of alarm event
active display area 70 x 34 mm
Calculations

IAPWS-IF97

See all specifications

Field of application

The steam calculator EngyCal RS33 is used to record steam mass and energy flow of saturated and superheated steam. The calculation is based on the measured process variables volume flow, temperature and/or pressure.
The EngyCal RS33 uses the standard IAPWS IF97 to calculate the mass and energy flow of steam. The density and enthalpy of the steam are calculated from the input variables pressure and temperature.

Recording and billing energy quantities in steam applications (steam heat quantity, steam heat differential). Typical applications include:

Food industry
Chemical industry
Pharmaceutical industry
Power plants
Building systems and plant engineering

Benefits

Compensation of differential pressure flow measurement
Calculation according to international water steam tables
Electronic matching of the temperature sensor (sensor-transmitter matching) with the arithmetic unit enables highly accurate temperature measurement
Detailed data logging of current and counter values and of error messages, off-limit conditions and changes to operating parameters
Standard models are suitable for connecting and supplying all common flow transmitters, temperature sensors and pressure sensors
Remote readout via Ethernet and fieldbuses
Deficit counter for transparency in case of error or alarm

Videos

Lean selection

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

Learn more about the FLEX selections

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Predecessor

Energy Manager RMC621

Steam- and heat computer RMS621

Success stories

Remote monitoring via Bluetooth®

Setting up and monitoring equipment at an ammonia plant presents significant challenges. Engie Energía uses advanced technological solutions, like remote communication devices in hazardous areas.
Read the full story
Automatic water dosing system of a reverse osmosis system

The Proline Promass E 300 flow meter and RA33 batch controller automate reverse osmosis water dosing, achieving precise accuracy of under 0.2%.
Read the full story
Prevent grain dust ignition in bulk tanks & silos

How temperature profiling increases plant safety and product quality in bulk tanks and silos for food storage.
Read the full story

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18 documents

Technical Information (TI)

TI EngyCal RS33

Technical Information (TI)

English version - 09/2025

New version available in English

Steam calculator for a measuring point with one pulse/analog input for flow and two RTD/analog inputs for temperature/pressure

Select other languages, versions and see details Hide selection and details

	EN
30/09/2025

Language:	English
Version:	30/09/2025
File size:	898.3 KB
File name:	TI00154KEN_0525-00.pdf

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Operating Instruction (BA)

BA EngyCal RS33

Operating Instruction (BA)

English version - 09/2025

New version available in English

Steam calculator for one measuring point with one pulse/analog input for flow and two RTD/analog inputs for temperature/pressure

Select other languages, versions and see details Hide selection and details

	EN
30/09/2025

Language:	English
Version:	30/09/2025
File size:	2.8 MB
File name:	BA00294KEN_0725-00.pdf

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Operating Instruction (BA)

EngyCal® RH33 および RS33、およびバッチコントローラ RA33 取扱説明書

Operating Instruction (BA)

Japanese version - 06/2016

New version available in English

熱量演算器 RH33、蒸気演算器 RS33、およびバッチコントローラ RA33 用
MODBUS の追加取扱説明書

Select other languages, versions and see details Hide selection and details

	EN
24/06/2016

Language:	Japanese
Version:	24/06/2016
File size:	1.2 MB
File name:	BA01029KJA_1416-00.pdf

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Operating Instruction (BA)

FDM Field Data Manager Software MS20, MS21

Operating Instruction (BA)

English version - 10/2021

New version available in English

Data management and visualization

Select other languages, versions and see details Hide selection and details

	EN
04/10/2021

Language:	English
Version:	04/10/2021
File size:	5.9 MB
File name:	BA00288R09EN_1221.pdf

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Short Instruction (KA)

KA EngyCal RS33

Short Instruction (KA)

English version - 09/2025

New version available in English

Steam calculator for one measuring point with one pulse/analog input for flow and two RTD/analog inputs for temperature/pressure

Select other languages, versions and see details Hide selection and details

	EN
30/09/2025

Language:	English
Version:	30/09/2025
File size:	1.8 MB
File name:	KA00293KEN_0625-00.pdf

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Fields of Activities (FA)

コンポーネントカタログ

Fields of Activities (FA)

Japanese version - 08/2022

New version available in English

HAW562-
HAW569-
MS20-
MS21-
RA33-
RB223-
RDL10-
READWIN-
RH33-
RIA14-
RIA15-
RIA16-
RIA45-
RIA452-
RIA46-
RID14-
RID16-
RID261-
RLN22-
RLN42-
RMA42-
RMC621-
RMS621-
RN22-
RN221N-
RN42-
RNB22-
RNF22-
RNO22-
RS33-
RSG30-
RSG35-
RSG40-
RSG45-
RXO20

Show details Hide details

Language:	Japanese
Version:	29/08/2022
File size:	11.7 MB
File name:	Fa00016k33ja_2019.pdf

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Fields of Activities (FA)

Systemprodukte und Datenmanager

Fields of Activities (FA)

German version - 05/2023

New version available in English

Lösungen zur Komplettierung der Messstelle
Anzeiger, Interfacegeräte, Überspannungsschutz, Energie- und
Applikationsmanager,
Datenmanager, Bildschirmschreiber und
Softwarepakete für die Prozessautomatisierung

Show details Hide details

Language:	German
Version:	17/05/2023
File size:	14.5 MB
File name:	FA00016KDE_2323_online.pdf

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Fields of Activities (FA)

System Products and Data Managers

Fields of Activities (FA)

English version - 05/2023

New version available in English

Solutions for the loop
Indicators, interface devices, surge arresters, energy and application
managers, data managers, paper
less recorders and associated
software packages for process automation

Show details Hide details

Language:	English
Version:	17/05/2023
File size:	14.5 MB
File name:	FA00016KEN_2323_online.pdf

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AI (Application note)

Saving energy with smart e-boiler monitoring

AI (Application note)

English version - 12/2025

New version available in English

Boosting sustainability with real-time energy insights

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Language:	English
Version:	19/12/2025
File size:	1.1 MB
File name:	AI01440K09EN01.25.pdf

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AI (Application note)

Energie sparen mit intelligenter E-Boiler Überwachung

AI (Application note)

German version - 12/2025

New version available in English

Mehr Nachhaltigkeit durch Echtzeit-Energieüberwachung

Show details Hide details

Language:	German
Version:	22/12/2025
File size:	1 MB
File name:	AI01440K09DE01.25.pdf

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EngyCal RS33 steam calculator

Steam calculator for one measuring point with one pulse/analog input for flow and two RTD/analog inputs for temperature/pressure

Specs at a glance

Input

Output

Display

Calculations

Field of application

Benefits

Videos

Lean selection

Predecessor

Success stories

Remote monitoring via Bluetooth®

Automatic water dosing system of a reverse osmosis system

Prevent grain dust ignition in bulk tanks & silos

Measuring principle

Measuring principle

Function

Calculations

Number of applications

Calculation standards

Communication

Power supply

Loop power supply

Protection class

Input

Output

Dimensions (WxHxD)

Operation

Display

Software functions

Certificates

Measuring principle

Function

Certification

Input

Output

Relay output

Auxiliary power supply

Dimensions (wxhxd)

Software

Operation

Display

Others

Calculations

Back

TI EngyCal RS33

BA EngyCal RS33

EngyCal® RH33 および RS33、およびバッチコントローラ RA33 取扱説明書

FDM Field Data Manager Software MS20, MS21

KA EngyCal RS33

コンポーネントカタログ

Systemprodukte und Datenmanager

System Products and Data Managers

Saving energy with smart e-boiler monitoring

Energie sparen mit intelligenter E-Boiler Überwachung

Back

Spare Parts Rx33

Spare Parts Rx33

CPU Board Rx33

Spare Parts Rx33

Spare Parts Rx33

Terminal strip 3 pole FMC1,5/3-ST-3,5

Field Data Manager Software MS20

Field Data Manager Software MS21

Software Rx33 (Release Code)

Mainboard Rx33

Terminal plug 2pole space5.0

Accessories System Products

RMA42 process transmitter with control unit

Input

Output

Display

Power Supply

RN42 active barrier

Input

Output

Power Supply

RN22 active barrier