Endress+Hauser RH33 Specifications

TI00151K/09/EN/02.13
71241091

Products Solutions Services

Technical Information

EngyCal® RH33

BTU meter
Custody transfer BTU meter for recording and
billing the heat/cold quantity given off by water,
water/glycol mixtures or other liquids

Transparent energy consumption helps you save on
energy costs

Application

Recording and billing the quantities of heat and cold in:

•Heating circuits

• Cooling circuits

• Combined heating and cooling circuits

Typical application areas in industry, long-distance heat networks and building auto­mation.

Your benefits

• Verified and certified reliability and accuracy

• Standard models are suitable for connecting and supplying all common volume flow
transmitters and temperature measuring points

• Detailed data logging of current and counter values and of error messages, off-limit
conditions and changes to operating parameters

• Industry-compliant compact housing for field or wall mounting, panel mounting or
top-hat rail mounting

• Deficit counter for transparency in case of error or alarm

• Custody transfer logbook enables versatile device configuration in the field

• Tariff counter for requirements-based billing

• 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!)

• Remote readout via Ethernet and fieldbuses

EngyCal® RH33

q

T

warm

T

cold

Function and system design

Measuring principle The EngyCal® RH33 BTU meter is used to measure the heat and cold in systems with liquid heat trans-

fer fluids. It is easy to install and read. Thanks to its verified long-term stability and high-precision
measurements, the device helps optimize processes and control costs in the process. Comprehensive
data analysis options in the Field Data Manager software MS20 (see accessories) identify potential
areas for cost reduction.

Measuring system

Measuring system with EngyCal ® RH33, 2x paired temperature sensors and flow sensor

Functions Energy calculation

EngyCal

®

RH33 calculates the thermal energy of water, glycol/water mixtures or other liquids such as
thermal oils in accordance with EN1434.
Calculation basis: IAWPS-IF97
Calculated values:

• Power

•Volume

•Density

• Enthalpy & enthalpy differential

• DP flow compensation

•Mass

• Temperature differential

Counters

Volume, mass, energy, deficit
Optional: tariff1, tariff2 or separate heat/cold energy, balance energy

Fault mode / deficit counter

The fault mode of the EngyCal
error value). Thanks to the defined fault mode and the separate deficit counter, the device guarantees
transparency for energy calculation and documentation for billing.
For the case of further calculation with an error value, the total calculated energy during the error con­dition is counted on a deficit counter.
In this case, the output continues to supply the calculated energy value. If values are communicated via
buses, these are given the value "invalid". Optionally, an alarm relay can be switched.

a0013618-en

®

RH33 can be defined freely (no further calculation or calculation with

User-defined heat transfer media

Heat transfer media in cooling circuits usually consist of glycol-water mixtures. Mixtures for the fol­lowing glycols are already predefined in the EngyCal®:

• Ethylene-glycol

•Antifrogen N

• Glykosol N

•Propylene glycol

For these glycol-water mixtures it is possible to enter the glycol concentration for accurate calculations.
If other heat transfer media are used (e.g. thermal oils, cooling agents), the liquid data must be pro­grammed into the device. Tables are available for this purpose in which the user can enter the density

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EngyCal® RH33

and thermal capacity (max. 10 support points). For devices with the "DP Flow Measurement" option,

another table with two support points is available for entering the viscosity data.

The values between or outside the support points are determined by interpolation or extrapolation.

Temperature sensor matching in the device

®

The temperature sensors are paired internally in the EngyCal

RH33 by storing the sensor character­istic curves via Callendar-van-Dusen coefficients. The Callendar-van-Dusen coefficients are deter­mined by calibrating the temperature sensor.
The internal alignment function makes it possible to use unpaired sensors, and to replace one sensor
independently of the second sensor while maintaining or improving accuracy levels (compared to using
paired sensors).

Compensation of differential pressure flow measurement

The flow calculation according to the differential pressure method is a special form of flow measure­ment. Volume or mass flow values measured according to the DP method require a specific correction.
The iterative solution of the calculation equations listed there allow the best possible accuracy (ca. 0.6
– 1 %) to be attained for DP flow measurements.
Compensation of flow measurement for throttle methods (orifice plate, nozzle).
The measurement (orifice plate, nozzle, Venturi pipe) is carried out according to ISO5167. Flow mea­surements according to the dynamic pressure method are determined according to the relationship
between the differential pressure and flow.

Data logging and logbook

Event logbook:
The EngyCal RH33

®

BTU meter has a logbook for measured values and a logbook for events.
In the event logbook, all parameter changes, off-limit conditions, alarms and other events are docu­mented with timestamp such that they are tamper-proof. At minimum, the last 1600 events are stored
in non-volatile memory.
The data logging allows process values and calculated values, as well as counters, to be stored in freely
definable intervals. Predefined analyses (Day, Month, Year, Billing dates) support the transparency of
the process and ensure a quick overview of all consumption values.
All entries into the event logbook and the logged data can be read out automatically via the visualiza­tion software (Field Data Manager Software) and backed up in an SQL database so that it is tamper­proof.
For fast and easy-to-understand analysis in case of service, an internal diagnostic memory with
occurred error messages is also available.

Analysis No. of analyses

Interval (1min) Approx. 700

Day 260 days

Month/year/billing date 17 years

Events At least 1600 (depending on the length of the message text)

Approval for custody transfer and custody transfer logbook

The device is equipped with a custody transfer switch, which disables configuration ranges that are rel­evant for custody transfer.
The custody transfer switch is located inside the device. The housing is lead-sealed.
The switch is enabled before delivery if the device is ordered with approval for custody transfer. Fol­lowing this, it is possible to reconfigure relevant device settings three times. All changes to the param­eters are logged in the custody transfer logbook and time-stamped.
The switch can only be reset by the manufacturer.
Thus the seamless documentation enables versatile commissioning and parameter configuration of
the computer in the field (without loss of custody transfer approval).

Limit value monitoring

Three limits can be assigned as desired the following measured and calculated values:
Volume flow, temperature, pressure, mass flow, power (heat flow), density, enthalpy, operating vol­ume, heat and tariff 1, tariff 2

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EngyCal® RH33

In case of violation of the defined limits, an entry is made into the event logbook. In addition, relays
can be switched and the off-limit condition can be indicated in the display. Limits are also visible via
the integrated Web server.

Bidirectional measurement (optional)

®

EngyCal

RH33 enables bidirectional measurement, i.e. the combined measurement of heat and cold,

for example when charging/discharging a heat accumulator, including calculation of the quantities of
heat. The bidirectional measurement can be flow-dependent or temperature-dependent.
This option cannot be combined with the tariff function.
A digital input can be used to detect the flow direction.

Tariff counters (optional)

The tariff counters enable analysis and recording of the energy on an additional counter.
Two types of tariff counter are available: A defined tariff can be activated by an event or via the digital
inputs. If the defined event occurs, the calculated energy is counted at this tariff.
Tariff counters enable, for example, invoicing on specific billing dates (due date invoicing), require­ments-based billing (daytime/nighttime tariff) and analysis of counters when reaching set points, e.g.
power-dependent.
Various tariff models are available for selection in the device, e.g. Energy; Power, warm; Power, cold;
Time.
The standard counters continue running at the same time, e.g. they are not affected by the activation
of the tariff counters.
This option cannot be combined with the bidirectional measurement function.

Real time clock (RTC)

The device has a real time clock that can be synchronized via a free digital input or using the Field Data
Manager software MS20.
The real time clock continues running even in case of a power failure, the device documents power on
and off; the clock switches automatically or (optionally) manually from daylight saving to standard
time.

Display

To display measured values, counters and calculated values, 6 groups are available. Each group can be
assigned up to 3 values or meter readings as desired.

Analyzing the stored data - Field Data Manager software MS20

The Field Data Manager Software allows the stored measured values, alarms and events, and the
device configuration to be read out from the device (automatically) so that they are tamper-proof and
stored securely in an SQL database. The software offers centralized data management with a variety of
visualization functions. Using an integrated system service, analyses and reports can be created,
printed and stored fully automatically. Security is provided by the FDA-compliant audit trail of the soft­ware and the extensive user management. Simultaneous access and analysis of data from various
workstations or users is supported (client-server architecture).

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EngyCal® RH33

Input

Current/pulse input Th is inp ut can b e u sed eithe r a s a c urren t inpu t f or 0 /4 to 2 0 mA sig nals (n ot if th e appr oval fo r c ust ody

transfer option has been selected) or as a pulse/frequency input.
The input is galvanically isolated (500 V testing voltage towards all other inputs and outputs).

Cycle time

The cycle time is 250 ms or 500 ms respectively when using one or two RTD inputs.

Reaction time

In the case of analog signals, the reaction time is the time between the change at the input and the
time when the output signal is equivalent to 90% of the full scale value. The reaction time is lengthened
by 250 ms if an RTD with 3-wire measurement is connected.

Input Output Reaction time [ms]

Current Current ≤ 600

Current Relay/digital output ≤ 600

RTD Current/ relay/digital output ≤ 600

Cable open circuit detection Current/ relay/digital output ≤ 600

Cable open circuit detection, RTD Current/ relay/digital output ≤ 1100

Pulse input Pulse output ≤ 600

Current input

Measuring range: 0/4 to 20 mA + 10 % over range

Accuracy: 0.1 % of full scale value

Temperature drift: 0.01 %/K (0.0056 %/°F) of the full scale value

Loading capacity: Max. 50 mA, max. 2.5 V

Input impedance (load): 50 Ω

®

signals Not affected

HART

A/D converter resolution: 20 bit

Pulse/frequency input

The pulse/frequency input can be configured for different frequency ranges:

• Pulses and frequencies up to 12.5 kHz

• Pulses and frequencies up to 25 Hz (filters out bounce contacts, max. bounce time: 5 ms)

Minimum pulse width:

Range up to 12.5 kHz
Range up to 25 Hz

Maximum permissible contact bounce time:

Range up to 25 Hz 5 ms

Pulse input for active voltage pulses and contact sensors as per EN 1434-2, Class IB and IC:

Non-conductive state
Conductive state

No-load supply voltage: 3 V to 6 V

Current limiting resistance in the power supply
(pull-up at input): 50 kΩ to 2 MΩ

Maximum permissible input voltage: 30 V (for active voltage pulses)

40 μs
20 ms

≤ 1 V
≥ 2 V

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EngyCal® RH33

Pulse input for contact sensors as per EN 1434-2, Class ID and IE:

Low-level
High-level

No-load supply voltage: 7 V to 9 V

Current limiting resistance in the power supply
(pull-up at input):

Not suitable for active input voltages.

Current/pulse input:

Low-level
High-level

Loading capacity: Max. 50 mA, max. 2.5 V

Input impedance (load): 50 Ω

Accuracy during frequency measurement:

Basic accuracy: 0.01 % of measured value

Temperature drift: 0.01 % of measured value over entire temperature range

≤ 1.2 mA
≥ 2.1 mA

562 Ωto 1 kΩ

≤ 8 mA
≥ 13 mA

Pulse output of the flow

RH33 setting Electrical connection Remark

sensor

Mechanical contact Pulse ID/IE up to25 Hz

Open Collector (NPN) Pulse ID/IE up to 25 Hz

or up to 12.5 kHz

Active voltage Pulse IB/IC+U

A Sensor
B RH33

A Sensor
B RH33

"Pulse IB/IC+U" up to 25 Hz can
also be used. The current through
the contact is lower then (approx.

0.05 mA instead of 9 mA).
Advantage: less load;
disadvantage: lower interference
resistance.

A0015354

"Pulse IB/IC+U" can also be used.
The current through the contact is
lower then (approx. 0.05 mA
instead of 9 mA). Advantage: less
load; disadvantage: lower
interference resistance.

A0015355

The switching threshold is
between 1 V and 2 V

A0015356

A Sensor
B RH33

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EngyCal® RH33

Pulse output of the flow

RH33 setting Electrical connection Remark

sensor

Active current Pulse I

The switching threshold is
between 8 mA and 13 mA

A0015357

A Sensor
B RH33

Namur sensor (as per
EN60947-5-6)

Pulse ID/IE up to 25 Hz
or up to 12.5 kHz

A Sensor
B RH33

A0015359

No monitoring for short circuit is
carried out.

2 x current/RTD input These inputs can be used either as current inputs (0/4 to 20 mA; not if the approval for custody trans-

fer option has been selected) or as resistance temperature detector (RTD = resistance thermometer)
inputs. It is also possible to configure one input as a current input and the other as an RTD input.
The two inputs are galvanically connected but galvanically isolated from the other inputs and outputs
(testing voltage: 500 V).

Current input

Measuring range: 0/4 to 20 mA + 10 % over range

Accuracy: 0.1 % of full scale value

Temperature drift: 0.01 %/K (0.0056 %/°F) of the full scale value

Loading capacity: Max. 50 mA, max. 2.5 V

Input impedance (load): 50 Ω

A/D converter resolution: 24 bit

®

signals are not affected.

HART

RTD input

Pt100, Pt500 and Pt1000 resistance temperature detectors can be connected to this input.
Endress+Hauser resistance temperature detectors, type TR10, are optionally available - see ordering
information.

Measuring ranges:

Pt100_exact:
Pt100_wide:
Pt500:
Pt1000:

Connection method: 2-, 3- or 4-wire connection

Accuracy: 4-wire:

Temperature drift: 0.01 %/K (0.0056 %/°F) of the measuring range

-200 °C to 300 °C (-328 to 572 °F)

-200 °C to 600 °C (-328 to 1112 °F)

-200 °C to 300 °C (-328 to 572 °F)

-200 °C to 300 °C (-328 to 572 °F)

0.06% of measuring range
3-wire:

0.06% of measuring range + 0.8 K (1.44 °F)

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Delta T measurement (differential measurement
between
both RTD inputs):

Characteristic curves: DIN EN 60751:2008 IPTS-90

Max. cable resistance: 40 Ω

Cable open circuit detection: Outside the measuring range

0.03 °C (0.054 °F)

Digital inputs Two digital inputs are available for switching the following functions.

Digital input 1 Digital input 2

Activate tariff counter 1
Time synchronization
Lock device (Block set up)

Activate tariff counter 2
Change flow direction
Time synchronization
Lock device (Block set up)

Input level:

To IEC 61131-2 type 3:
Logical "0" (corresponds to -3 to +5 V), activation with logical "1" (corresponds to +11 to +30 V)

EngyCal® RH33

Input current:

Max. 3.2 mA

Input voltage:

Max. 30 V (steady-state, without destroying the input)

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EngyCal® RH33

Output

Current/pulse output (option)

This output can be used either as a 0/4 to 20 mA current output or as a voltage pulse output. The out­put is galvanically isolated (500 V testing voltage towards all other inputs and outputs).

Current output

Output range: 0/4 to 20 mA + 10 % over range

Load: 0 to 600 Ω (as per IEC 61131-2)

Accuracy: 0.1 % of full scale value

Temperature drift: 0.01 %/K (0.0056 %/°F) of the full scale value

Inductive load: Max. 10 mH

Capacitance load: Max. 10 μF

Ripple: Max. 12 mVpp on 600 Ω for frequencies < 50 kHz

D/A converter resolution: 14 bit

Pulse output

Frequency: Max. 12.5 kHz

Pulse width: Min. 40 μs

Voltage level: Low: 0 to 2 V

High: 15 to 20 V

Maximum output current: 22 mA

Short-circuit proof

2 x relay output The relays are designed as NO contacts. The output is galvanically isolated (1500 V testing voltage

towards all other inputs and outputs).

2 x digital output, open col­lector (option)

Max. relay switching capacity: AC: 250 V, 3 A

Minimum contact load: 10 V, 1 mA

Min. switching cycles: >10

The two digital inputs are galvanically isolated from one another and from all the other inputs and out­puts (testing voltage: 500 V). The digital outputs can be used as status or pulse outputs.

Frequency: Max. 1 kHz

Pulse width: Min. 500 μs

Current: Max. 120 mA

Voltage: Max. 30 V

Voltage drop: Max. 2 V in conductive state

Maximum load resistance: 10 kΩ

DC: 30 V, 3 A

5

For higher values, the switching edges are flattened.

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EngyCal® RH33

Auxiliary voltage output (transmitter power supply)

Electrical connection

The auxiliary voltage output can be used to power the transmitter or control the digital inputs. The aux­iliary voltage is short-circuit proof and galvanically isolated (500 V testing voltage towards all other
inputs and outputs).

Output voltage: 24 V DC ±15% (not stabilized)

Output current: Max. 70 mA

®

signals are not affected.

HART

Terminal assignment

Terminal assignment of the EngyCal® RH33

Supply voltage • Low-voltage power unit: 100 to 230 V AC (-15% / +10%) 50/60 Hz

• Extra-low voltage power unit:
24 V DC (-50% / +75%)
24 V AC (±50%) 50/60 Hz

An overload protection unit (rated current ≤ 10 A) is required for the power cable.

Power consumption 15 VA

A0022341

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EngyCal® RH33

Communication interfaces

A USB interface (with CDI protocol), and optionally Ethernet, are used to configure the device and read
out the values. ModBus and M-Bus are optionally available as communication interfaces.
None of the interfaces has a modifying effect on the device in accordance with PTB Requirement PTB­A 50.1.

USB device

Connection: Type B socket

Specification: USB 2.0

Speed: Full speed (max. 12 MBit/sec)

Max. cable length: 3 m (9.8 ft.)

Ethernet TCP/IP The Ethernet interface is optional, and cannot be combined with other optional interfaces. It is galvan-

ically isolated (testing voltage: 500 V). A standard patch cable (e.g. CAT5E) can be used to connect the
Ethernet interface. A special cable gland is available for this purpose which allows users to guide pre­terminated cables through the housing. Via the Ethernet interface, the device can be connected to
office equipment using a hub or a switch.

Standard: 10/100 Base-T/TX (IEEE 802.3)

Socket: RJ-45

Max. cable length: 100 m (328 ft.)

Web server

When the device is connected via Ethernet, the display values can also be read out via the Internet
using a web server.
Data can be read out via the web server in HTML or XML format.

RS485

Connection 3-pin plug-in terminal

Transmission protocol RTU

Transmission rate 2400/4800/9600/19200/38400

Parity Choose from None, Even, Odd

Modbus TCP The Modbus TCP interface is optional, and cannot be ordered with other optional interfaces. It is used

to connect the device to higher-order systems to transmit all measured values and process values. The
Modbus TCP interface is physically identical to the Ethernet interface.

Modbus RTU The Modbus RTU (RS-485) interface is optional, and cannot be ordered with other optional interfaces.

It is galvanically isolated (testing voltage: 500 V) and used to connect the device to higher-order sys­tems to transmit all measured values and process values. It is connected via a 3-pin plug-in terminal.

M-Bus The M-Bus (Meter Bus) interface is optional, and cannot be ordered with other optional interfaces. It

is galvanically isolated (testing voltage: 500 V) and used to connect the device to higher-order systems
to transmit all measured values and process values. It is connected via a 3-pin plug-in terminal.

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Performance characteristics

EngyCal® RH33

Reference operating condi­tions

Arithmetic unit

• Power supply 230 V AC ± 10%; 50 Hz ± 0.5 Hz

• Warm-up time > 2 h

• Ambient temperature 25 °C ± 5 K (77 ± 9 °F)

• Humidity 39% ± 10% RH

Medium Variable Range

Temperature measuring range 0 to 350 °C (32 to 662 °F)

Temperature differential range ΔT 0 to 350 K (0 to 630 °F)

Measuring range approved for custody

Water

Water/glycol Glycol concentration 0-60 %

Liquids Temperature measuring range -200 to 600 °C (-328 to 1112 °F)

Measurement and calculation interval 500 ms

transfer

Accuracy 3 to 20 K (5.4 to 36 °F) < 0.7% of the measured

Accuracy acc. to EN1434/OIML75 ± (0.5 + ΔΘ min/ΔΘ) %

Temperature measuring range -40 to 350 °C (-40 to 662 °F)

Maximum temperature differential
range ΔT

Accuracy (0 - 40 % glycol) 3 to 20 K (5.4 to 36 °F) < 0.9% of the measured

Maximum temperature differential
range ΔT

Error limit for ΔTsee water

0 to 300 °C (32 to 572 °F)
ΔT: 3 to 297 K (5.4 to 534.6 °F)

value
20 to 300 K (36 to 540 °F) < 0.2% of the mea­sured value

0 to 390 K (0 to 702 °F)

value
20 to 300 K (36 to 540 °F) < 0.4% of the mea­sured value

0 to 390 K (0 to 702 °F)

Installation

Installation instructions Mounting location

Wall/pipe mounting, panel or top-hat rail as per IEC 60715

1)

Orientation

The orientation is only determined by the legibility of the display.

Environment

Ambient temperature range -20 to +60 °C (-4 to +140 °F)

Storage temperature -30 to +70 °C (-22 to 158 °F)

Climate class As per IEC 60 654-1 Class B2, as per EN 1434 ambient class C

1) According to UL approval panel or surface mountable only.

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EngyCal® RH33

Humidity Maximum relative humidity 80 % for temperatures up to 31 °C (87.8 °F), decreasing linearly to 50 %

relative humidity at 40 °C (104 °F).

Electr. safety As per IEC 61010-1, UL61010-1 and CAN C22.2 No 1010-1.

• Protection class II

• Overvoltage category II

• Pollution degree 2

• Overload protection ≤ 10 A

• Operating altitude: up to 2000 m (6560 ft) above MSL

Degree of protection • Panel mounting: IP65 front panel, IP20 rear panel (not evaluated by UL)

• Top-hat rail: IP20

• Field housing: IP66, NEMA4x (for cable gland with double seal insert: IP65) (not evaluated by UL)

Electromagnetic compatibil-

As per EN 1434-4, EN 61326 and Namur NE21

ity

Mechanical construction

Design, dimensions EngyCal® RH33

a0013438

BTU meter housing; dimensions in mm (in)

Weight Approx. 700 g (1.5 lbs)

Material Housing: fiber-glass reinforced plastic, Valox 553

Terminals Spring terminals, 2.5 mm

2

(14 AWG); auxiliary voltage with plug-in screw terminal (AWG 30-12;

torque 0.5-0.6 Nm).

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Resistance temperature detector TR10 (option)

EngyCal® RH33

a0015313

Optional resistance temperature detector TR10; dimensions in mm (dimensions in inches in brackets)

IL Insertion length
L Immersion length

Process connection of resis­tance temperature detector
TR10 (option)

More technical data on the resistance temperature detector TR10 can be found in the associated Tech­nical Information, which you can download from www.de.endress.com/download.

Process connection Version Thread length TL in

mm (in)

Cylindrical Conical

G G1/2" 15 (0.6)

NPT NPT1/2" 8 (0.32)

a0008620

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EngyCal® RH33

Human interface

Display elements •Display:

160 x 80 dot matrix LCD with white background, color switches to red in an alarm condition, active
display area 70 x 34 mm (2.76 x 1.34 ")

• LED status display:
Operation: 1 x green
Fault indication: 1 x red

a0013444

Display and operating elements of the BTU meter

1 LED green, "Operation"
2 LED red, "Fault indicator"
3 USB connection for configuration
4 Operating keys: -, +, E
5 160x80 DOT matrix display

Local operation 3 keys, "-", "+", "E".

Configuration interface USB interface, front-panel, optional Ethernet interface: configuration via PC with FieldCare Device

Setup configuration software.

Data logging Real time clock

• Drift: 15 min per year

• Power reserve: 1 week

Software • Field Data Manager software MS20: Visualization software and database for analyzing and eval-

uating the measuring data and calculated values, as well as tamper-proof data logging.

• FieldCare Device Setup: The device can be programmed using the FieldCare PC software. FieldCare
Device Setup is included in the scope of supply of the Commubox FXA291 or RXU10-G1 (see ‘Acces­sories’) or can be downloaded at no charge from www.products.endress.com/fieldcare.

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EngyCal® RH33

Certificates and approvals

Approval for custody transfer As per MID (EN1434 water/liquids) and OIML R75

CE mark The measuring system meets the legal requirements of the EU directives. Endress+Hauser confirms

successful testing of the device by affixing to it the CE mark.

Other standards and guide­lines

CSA GP • CAN/CSA-22.2 No. 61010-1, 2

UL approval • UL 61010-1, 2nd Edition

• IEC 60529:
Degrees of protection provided by enclosures (IP code)

• IEC 61010-1: 2001 cor 2003
Safety requirements for electrical equipment for measurement, control and laboratory use

• IEC 61326 series:
Electromagnetic compatibility (EMC requirements)

• NAMUR NE21, NE43
Association for Standards for Control and Regulation in the Chemical Industry

•IAWPS-IF 97
Internationally applicable and recognized calculation standard (since 1997) for steam and water.
Issued by the International Association for the Properties of Water and Steam (IAPWS).

•OIML R75
International construction and testing regulation for water energy managers by the Organisation
Internationale de Métrologie Légale.

• EN 1434

• EN ISO 5167
Measurement of fluid flow by means of pressure differential devices

nd

Edition

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EngyCal® RH33

Ordering information

Detailed ordering information is available from the following sources:

• In the Product Configurator on the Endress+Hauser website: www.endress.com → Select country →
Instruments → Select device → Product page function: Configure this product

• From your Endress+Hauser Sales Center: www.endress.com/worldwide

Product Configurator - the tool for individual product configuration

• Up-to-the-minute configuration data

• Depending on the device: Direct input of information specific to measuring point, such as measuring
range or operating language

• Automatic verification of exclusion criteria

• Automatic creation of the order code and its breakdown in PDF or Excel output format

• Ability to order directly in the Endress+Hauser Online Shop

Accessories

Various accessories are available for the device, and these can be ordered with the device or at a later
stage from Endress+Hauser. Detailed information on the order code in question is available from your
local Endress+Hauser Sales Center or on the product page of the Endress+Hauser website:
www.endress.com

Device-specific accessories •Pipe mounting set

• DIN rail mounting set

• Panel mounting set

• Wall mounting set

• USB cable and FieldCare Device Setup calibration software incl. DTM library
– RXU10-G1
– FXA291

• Visualization software and Field Data Manager MS20, SQL-based database software

System components Overvoltage protection for sensors and devices:

• HAW569 surge arrester to screw into field housing, M20

• HAW562 surge arrester limiting high voltages on signal cables and components

Documentation

• Operating Instructions for 'EngyCal® RH33 BTU Meter' (BA00290K/09)

• Technical Information for 'Surge Arrester HAW562' (TI01012K/09)

• Technical Information for 'Surge Arrester HAW569' (TI01013K/09)

• Brochure 'System Components and Data Managers - Solutions for a Complete Measuring Point'
(FA00016K/09)

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www.addresses.endress.com