Name: EngyCal RH33
Brand: Endress+Hauser
Availability: InStock

EngyCal RH33 BTU meter

Calibratable BTU meter for one measuring point with one pulse/analog input for flow and two RTD/analog inputs for temperature/pressure

Product photo calibratable heat meter EngyCal RH33

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EngyCal RH33 BTU meter

Calibratable BTU meter for one measuring point with one pulse/analog input for flow and two RTD/analog inputs for temperature/pressure

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Benefits

Transparent energy consumption helps you save on energy costs
Calibrated, electronically paired temperature sensors ensure the highest accuracy and enable replacement of individual temperature sensors even for certified devices in the field (without reapproval!)
Tariff counter for requirements-based billing
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 volume flow transmitters and temperature measuring points
Remote readout via Ethernet and fieldbuses
Verified and certified reliability and accuracy

Services and resources

Product Support Product documentation, troubleshooting articles, device details and more.

FLEXible answers to individual needs

Current product

EngyCal RH33 BTU meter

Standard products
Reliable, robust and low-maintenance

What is FLEX?

FLEX selections

Technical excellence

Simplicity

Fundamental selection Meet your basic measurement needs

Lean selection Handle your core processes easily

Extended selection Optimize your processes with innovative technologies

Xpert selection Master your most challenging applications

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Manufacturer's warranty

Engineered for confidence

Our instruments are designed for long‑lasting performance, precise measurement, and dependable operation in demanding industrial environments. Each product includes a standard manufacturer’s warranty that reflects our commitment to quality and to the trust you place in our solutions.

Should a warranty case occur, the device will be assessed and the applicable remedy will be provided in line with the warranty terms – helping ensure a reliable and efficient resolution and supporting continued operation of your measurement point.

Request for extended warranty

If you require extended warranty coverage, simply contact your local Endress+Hauser representative. Our experts will advise you on the available options to match your application and risk profile, helping you protect your investment, reduce unexpected repair costs, and ensure reliable long‑term operation beyond the manufacturer's warranty period.

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Warranty terms apply

The manufacturer's warranty and extended warranty are subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.

Services by your side

Right‑first‑time commissioning, worldwide

Endress+Hauser’s qualified service engineers ensure your measurement devices are commissioned right the first time, delivering application‑aligned accuracy, regulatory compliance, and operational confidence from startup onwards, anywhere in the world.

Remote support you can trust wherever you operate

With Endress+Hauser Smart Support, you benefit from faster issue resolution, higher uptime, reliable global expertise across the entire product lifecycle – and lasting peace of mind.

Committed to long‑term, sustainable performance

With deep field expertise, harmonized processes, and continuous monitoring, we accompany you with comprehensive service offerings – from initial start‑up through instrumentation maintenance to process optimization – as a true lifetime partner delivering improved outcomes.

For additional information, please contact your local Endress+Hauser representative.

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24/7 customer portal

Personalized transaction space

Check prices and delivery times, save your favorite products, create quotes and place orders in just a few clicks and track deliveries at any time. With access to your complete order and quote history including all relevant documents you benefit from full transparency throughout the entire process.

Easy access to technical documentation

Select and download all technical documentation such as operating manuals, calibration certificates, approvals and CAD drawings conveniently bundled as a complete documentation package for your entire order or quote.

My Endress+Hauser – all in one place

My Endress+Hauser is your 24/7 connection to Endress+Hauser – in the office, in the field or on the go. It brings together transaction management, documentation and software downloads, knowledge base access, customer support, engineering tools and cloud‑based IIoT services helping you work easier, faster and more efficiently.

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CAD Drawings

Configuration support

Spare parts and accessories

Housing/housing accessories

Spare Parts Rx33

Housing/housing accessories

Order code XPR0001-

Drawing number 1

Electronic

CPU Board Rx33

Electronic

Order code XPR0002-

Drawing number 7

Electronic

Spare Parts Rx33

Electronic

Order code XPR0001-

Drawing number 8

Electronic

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

Electronic

Order code 51009210

Drawing number 8

Spare parts & accessories

Selection of compatible products

RMA42 process transmitter with control unit

4-wire process transmitter with control unit as DIN rail device with up to two universal sensor inputs and optional SIL approval

RN42 active barrier

Active barrier, 1 channel for 4 to 20 mA, HART® transparent with 24 to 230 V AC/DC as well as active/passive input and output, optionally with SIL and Ex

RN22 active barrier

Active barrier, 1/2-channel/SD for 4 to 20 mA, HART® transparent with 24 V DC as well as active/passive input and output, optionally with SIL and Ex

Input	1x Puls/Analog 2x RTD/Analog 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	heat quantity and heat quantity difference
Measuring principle	Energy manager
Measuring principle	Energy manager
Function	Monitoring and billing of energy in heating and cooling applications as well as combined heating-and cooling circles. Typical applications can be found in industries, district heating and building automation.
Number of applications	1
Calculation standards	IAPWS-97
Communication	web server USB Ethernet Modbus RTU/TCP Slave M-Bus
Power supply	Not defined
Loop power supply	Low voltage power supply: 100 bis 230 V AC (-15% / +10%) Small voltage power supply: 24 V DC (-50% / +75%) 24 V AC (±50%)
Protection class	IP65
Dimensions (WxHxD)	144 x 144 x 103.1 mm (5.67" x 5.67" x 4.06")
Operation	3 button on site or via FieldCare read out of historical / logged data via Field Data Manager Software (SQL database and visualization interface) selectable language
Software functions	Calculated Values: Energy, volume, density, enthalpy & enthalpy difference, DP-Flow-Compensation, mass, temperature difference Counters: Volume, mass, energy, counter in case of failure Optional: tariff 1, tariff 2 or seperated heating energy, cooling energy, bilance energy
Certificates	CSA GP MID 004 (custody transfer) according EN1434 (water/other liquids) OIML R75 Non-hazardous area + KC marking
Input	1x Puls/Analog 2x RTD/Analog 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	heat quantity and heat quantity difference
Measuring principle	Energy manager
Function	Monitoring and billing of energy in heating and cooling applications as well as combined heating-and cooling circles. Typical applications can be found in industries, district heating and building automation.
Certification	CE, UL listed, CSA GP, MID 004 (custody transfer) according EN1434 (water/other liquids) and OIML R75
Input	1x Puls/Analog, 2x RTD/Analog, Loop power supply 24V DC (+/-16%)
Output	1x 4...20mA, 2x digital (Open Collector)
Relay output	2x
Auxiliary power supply	Low voltage power supply: 100 bis 230 V AC (-15% / +10%); Small voltage power supply: 24 V DC (-50% / +75%), 24 V AC (±50%)
Dimensions (wxhxd)	144 x 144 x 103.1 mm (5.67" x 5.67" x 4.06")
Software	Calculated Values: Energy, volume, density, enthalpy & enthalpy difference, DP-Flow-Compensation, mass, temperature difference; Counters: volume, mass, energy, counter in case of failure Optional: tariff 1, tariff 2 or seperated heating energy, cooling energy, bilance energy
Operation	3 button on site or via FieldCare; read out of historical / logged data via Field Data Manager Software (SQL database and visualization interface), selectable language
Display	160 x 80 Dot-Matrix LCD with white backlit, colour change in case of alarm event, active display area 70 x 34 mm
Others	electronic temperature sensor matching via CvD coefficients, logbook measured values, custody transfer logbook, event logbook, limit monitoring
Calculations	IAPWS-IF97

EngyCal RH33 BTU meter

EngyCal RH33 BTU meter

EngyCal RH33 BTU meter

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EngyCal RH33 BTU meter

EngyCal RH33 BTU meter

EngyCal RH33 BTU meter

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