Endress+Hauser EngyCal RH33 Technical specifications

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Brief Operating Instructions
EngyCal® RH33
Universal BTU meter
These Instructions are Brief Operating Instructions; they do not
replace the Operating Instructions included in the scope of
supply.
For detailed information, refer to the Operating Instructions
and other documentation on the CD-ROM provided or visit
"www.endress.com/deviceviewer".
KA00289K/09/EN/02.13
71234336

Table of contents EngyCal® RH33
2 Endress+Hauser
Table of contents
1 Document information ........................................................... 3
1.1 Document conventions ................................................................. 3
2 Safety instructions ............................................................... 6
2.1 Requirements for the personnel ........................................................... 6
2.2 Designated use ....................................................................... 6
2.3 Workplace safety ...................................................................... 6
2.4 Operational safety ..................................................................... 6
2.5 Product safety ........................................................................ 6
3 Identification .................................................................... 8
3.1 Device tag ........................................................................... 8
3.2 Scope of delivery ...................................................................... 9
3.3 Certificates and approvals ............................................................... 9
4 Installation ..................................................................... 10
4.1 Incoming acceptance, transport, storage .................................................... 10
4.2 Dimensions ......................................................................... 11
4.3 Installation conditions ................................................................. 13
4.4 Installation ......................................................................... 14
4.5 Installation instructions for temperature sensor(s) ............................................ 19
4.6 Requirements for sizing ................................................................ 20
4.7 Post-installation check ................................................................. 20
5 Wiring .......................................................................... 21
5.1 Connection instructions ................................................................ 21
5.2 Quick wiring guide .................................................................... 21
5.3 Connecting the sensors ................................................................ 24
5.4 Outputs ............................................................................ 29
5.5 Communication ...................................................................... 29
5.6 Post-connection check ................................................................. 31
6 Operation ....................................................................... 32
6.1 General notes for operation ............................................................. 32
6.2 Display and operating elements .......................................................... 32
6.3 Operating matrix ..................................................................... 35
7 Commissioning ................................................................. 36
7.1 Quick commissioning/make it run ........................................................ 36

EngyCal® RH33 Document information
Endress+Hauser 3
1 Document information
1.1 Document conventions
1.1.1 Safety symbols
Symbol Meaning
DANGER
A0011189-EN
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
A0011190-EN
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
A0011191-EN
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
A0011192-EN
NOTICE!
This symbol contains information on procedures and other facts which do not result in personal
injury.
1.1.2 Electrical symbols
Symbol Meaning
A0011197
Direct current
A terminal to which DC voltage is applied or through which direct current flows.
A0011198
Alternating current
A terminal to which alternating voltage is applied or through which alternating current flows.
A0017381
Direct current and alternating current
• A terminal to which alternating voltage or DC voltage is applied.
• A terminal through which alternating current or direct current flows.
A0011200
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a grounding system.
A0011199
Protective ground connection
A terminal which must be connected to ground prior to establishing any other connections.
A0011201
Equipotential connection
A connection that has to be connected to the plant grounding system: This may be a potential
equalization line or a star grounding system depending on national or company codes of practice.
A0012751
ESD - electrostatic discharge
Protect the terminals from electrostatic discharge. Failure to observe this may result in destruction of
parts of the electronics.

Document information EngyCal® RH33
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1.1.3 Symbols for certain types of information
Symbol Meaning
A0011182
Allowed
Indicates procedures, processes or actions that are allowed.
A0011183
Preferred
Indicates procedures, processes or actions that are preferred.
A0011184
Forbidden
Indicates procedures, processes or actions that are forbidden.
A0011193
Tip
Indicates additional information.
A0011194
Reference to documentation
Refers to the corresponding device documentation.
A0011195
Reference to page
Refers to the corresponding page number.
A0011196
Reference to graphic
Refers to the corresponding graphic number and page number.
,… ,
Series of steps
Result of a sequence of actions
1.1.4 Symbols in graphics
Symbol Meaning
1, 2, 3,... Item numbers
,… ,
Series of steps
A, B, C, ... Views
A-A, B-B, C-C, ... Sections
A0013441
Flow direction
-
A0011187
Hazardous area
Indicates a hazardous area.
.
A0011188
Safe area (non-hazardous area)
Indicates a non-hazardous area.

EngyCal® RH33 Document information
Endress+Hauser 5
1.1.5 Tool symbols
Symbol Meaning
A0011220
Flat-blade screwdriver
A0011219
Phillips screwdriver
A0011221
Allen key
A0011222
Open-ended wrench
A0013442
Torx screwdriver

Safety instructions EngyCal® RH33
6 Endress+Hauser
2 Safety instructions
Safe operation of the device is only guaranteed if the Operating Instructions have been read
and the safety instructions they contain have been observed.
2.1 Requirements for the personnel
The personnel must fulfill the following requirements for its tasks:
‣Trained, qualified specialists must have a relevant qualification for this specific function
and task
‣Are authorized by the plant owner/operator
‣Are familiar with federal/national regulations
‣Before beginning work, the specialist staff must have read and understood the instructions
in the Operating Instructions and supplementary documentation as well as in the
certificates (depending on the application)
‣Following instructions and basic conditions
2.2 Designated use
The BTU meter is a device for measuring energy flow in heating and cooling systems. The
line-powered arithmetic unit can be used universally in industry, long-distance heat and
building systems.
• The manufacturer accepts no liability for damages resulting from incorrect use or use other
than that designated. It is not permitted to convert or modify the device in any way.
• The device may only be operated when installed.
2.3 Workplace safety
For work on and with the device:
‣Wear the required personal protective equipment according to federal/national
regulations.
2.4 Operational safety
Risk of injury.
‣Operate the device in proper technical condition and fail-safe condition only.
‣The operator is responsible for interference-free operation of the device.
Environmental requirements
If a plastic transmitter housing is permanently exposed to certain steam and air mixtures, this
can damage the housing.
‣If you are unsure, please contact your Endress+Hauser Sales Center for clarification.
‣If used in an approval-related area, observe the information on the nameplate.
2.5 Product safety
This measuring device is designed in accordance with good engineering practice to meet state-
of-the-art safety requirements, has been tested, and left the factory in a condition in which it
is safe to operate.

EngyCal® RH33 Safety instructions
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It meets general safety standards and legal requirements. It also complies with the EC
directives listed in the device-specific EC Declaration of Conformity. Endress+Hauser confirms
this by affixing the CE mark to the device.

Identification EngyCal® RH33
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3 Identification
3.1 Device tag
3.1.1 Nameplate
Compare the nameplate on the device with the following diagram:
XX.XVA/X.XW XX.XVA/X.XW
16YV 16YV
EngyCal®
Made in Germany 20xx
87484 Nesselwang
100-230V (-15%/+10%) 50/60Hz
Ord. cd.:
Ser. no.:
Ext. Ord. cd.:
RX33-xx1xxxxxxxxxxxxxxxLU
xxxxxxxxxxxxxxxx
Xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
FW: Firmware Dev_Rev.: X
-20°C(-4°F) < Ta < +60°C(140°F)
Other approvals
EngyCal®
Made in Germany 20xx
87484 Nesselwang
Ord. cd.:
Ser. no.:
Ext. Ord. cd.:
RX33-xx2xxxxxxxxxxxxxxxLU
xxxxxxxxxxxxxxxx
Xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
24V (-50%+75%) 24V (±50%) 50/60Hz
FW: Firmware Dev_Rev.: X
Other approvals
-20°C(-4°F) < Ta < +60°C(140°F)
1
2
3
4
5
6
7
8
9
10
A0013583
 1 Device nameplate (example)
1 Device tag
2 Order code and serial number
3 Supply voltage
4 Power consumption
5 Firmware Version
6 Approvals, if available
7 Ambient temperature range
8 Device revision
9 Device protected by double or reinforced seal
10 Place and year of manufacture
3.1.2 Front foil for devices with approval for custody transfer
For devices with the option of approval for custody transfer, the front foil is imprinted with
the following information:

EngyCal® RH33 Identification
Endress+Hauser 9
A0013584
 2 Labeling of front foil for devices with approval for custody transfer
3.2 Scope of delivery
The scope of delivery of the BTU meter comprises:
• BTU meter (field housing)
• Brief Operating Instructions in paper form, Operating Instructions and additional
documentation (on CD-ROM)
• Optional temperature sensors TR10
• Optional interface cable and DVD set with FieldCare Device Setup parameter configuration
software
• Optional Field Data Manager software MS20
• Optional mounting hardware for DIN rail, panel mounting, pipe mounting
• Optional overvoltage protection
Please note the device accessories in Section 8 "Accessories" of the Operating Instructions
on the CD-ROM.
3.3 Certificates and approvals
The BTU meter and the optionally available paired temperature sensors fulfill the
requirements of Directive 2004/22/EC (Measurement Instruments Directive, MID) and OIML
R75 and EN-1434.
If the arithmetic unit with temperature sensors is to be used in commercial applications, the
flow sensor must also have a type approval (incl. conformity assessment) according to MID.
Measuring devices with MID approval have the MID mark on the front foil. (→  1,  8).
This approval replaces the initial calibration on-site.
The calibrated arithmetic unit can be set individually onsite. Custody transfer-related
parameters, such as the pulse value of the flow transmitter, can be changed up to three times.
The changes to the custody transfer-related parameters are recorded in a custody transfer
logbook. This allows individual defective sensors to be replaced in the field without losing the
custody transfer status.

Installation EngyCal® RH33
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The device also has a national approval as a BTU meter for cooling or for combined heating/
cooling applications. The initial calibration of these devices is always carried out on-site by a
calibration officer.
CE mark, Declaration of Conformity
The device is designed to meet state-of-the-art safety requirements, has been tested, and left
the factory in a condition in which it is safe to operate. The device complies with the
applicable standards and regulations in accordance with EN 61010-1 "Safety requirements for
electrical equipment for measurement, control and laboratory use".
The device described in these Operating Instructions therefore complies with the statutory
requirements of the EU Directives. The manufacturer confirms that the device has been
successfully tested by applying the CE mark.
4 Installation
4.1 Incoming acceptance, transport, storage
Compliance with the permitted environmental and storage conditions is mandatory. Precise
specifications are provided in the "Technical Information" section of the Operating Instructions
on the CD-ROM.
4.1.1 Incoming acceptance
On receipt of the goods, check the following points:
• Is the packaging or the content damaged?
• Is the delivery complete? Compare the scope of delivery against the information on your
order form.
4.1.2 Transport and storage
Please note the following:
• Pack the device in such a way as to protect it reliably against impact for storage (and
transportation). The original packaging provides optimum protection.
• The permitted storage temperature is –40 to +85 °C (–40 to +185 °F); it is possible to store
the device at borderline temperatures for a limited period (48 hours maximum).

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4.2 Dimensions
144 (5.67)
144 (5.67)
175 (6.89)
138 (5.43)
77 (3.03)
138 (5.43)
103.1 (4.06)
A0013438
 3 Dimensions of the device in mm (in)
73 (2.87)
148 (5.83)
160 (6.3)
85 (3.35)
A0014169
 4 Dimensions of the mounting plate for wall, pipe and panel mounting in mm (in)

Installation EngyCal® RH33
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138 (5.43)
138 (5.43)
A0014171
 5 Dimensions of the panel cutout in mm (in)
120 (4.72) 7.7 (0.3)
141.9 (5.59)
A0014610
 6 Dimensions of DIN rail adapter in mm (in)

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M4
L
80 (3.15) 10 (0.4)
IL
A0015313
 7 Thermometer TR10 (optional accessory), dimensions in mm (in)
L Immersion length, specified when ordered
IL Insertion length = L + extension neck length (80 mm (3.15 in)) + 10 mm (0.4 in)
4.3 Installation conditions
With the appropriate accessories the device with field housing is suitable for wall mounting,
pipe mounting, panel mounting and DIN rail installation. 1).
The orientation is only determined by the legibility of the display. Connections and outputs
are fed out of the bottom of the device. The cables are connected via coded terminals.
Operating temperature range:–20 to 60 °C (–4 to 140 °F)
You can find more information in the "Technical data" section.
NOTICE
Overheating of the device due to insufficient cooling
‣To avoid heat buildup, please always ensure that the device is sufficiently cooled. Operating
the device in the upper temperature limit range decreases the operating life of the display.
1) According to UL approval panel or surface mountable only.

Installation EngyCal® RH33
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4.4 Installation
4.4.1 Wall mounting
1. Use the mounting plate as the template for drilled holes, dimensions (→  4,  11)
2. Attach the device to the mounting plate and fasten it in place from the rear using 4
screws.
3. Fasten the mounting plate to the wall using 4 screws.
2.
3.
2.
A0014170
 8 Wall mounting
4.4.2 Panel mounting
1. Make the panel cutout in the required size, dimensions (→  5,  12)

EngyCal® RH33 Installation
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2.
1
A0014172
 9 Panel mounting
Attach the seal (item 1) to the housing.
3.
2
A0014173
 10 Preparing the mounting plate for panel mounting
Screw the threaded rods (item 2) into the mounting plate (dimensions (→  4,  11)).

Installation EngyCal® RH33
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4.
2
3
A0014174
 11 Panel mounting
Push the device into the panel cutout from the front and attach the mounting plate to
the device from the rear using the 4 screws provided (item 3).
5. Fasten the device in place by tightening the threaded rods.

EngyCal® RH33 Installation
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4.4.3 Support rail/DIN rail (to EN 50 022)
1.
1
2
A0014176
 12 Preparing for DIN rail mounting
Fasten the DIN rail adapter (item 1) to the device using the screws provided (item 2)
and open the DIN rail clips.
2.
A0014177
 13 DIN rail mounting
Attach the device to the DIN rail from the front and close the DIN rail clips.

Installation EngyCal® RH33
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4.4.4 Pipe mounting
1.
1.
A0014178
 14 Preparing for pipe mounting
Pull the steel belts through the mounting plate (dimensions (→  4,  11)) and fasten
them to the pipe.
2.
2. 2.
A0014179
 15 Pipe mounting

EngyCal® RH33 Installation
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Attach the device to the mounting plate and fasten it in place using the 4 screws
provided.
4.5 Installation instructions for temperature sensor(s)
BA C
D
L
L
A0008603
 16 Installation types for temperature sensors
A - BFor cables with a small cross-section, the sensor tip must reach to the piping axis or a little farther
(=L).
C - D Slanted orientation.
The immersion length of the thermometer influences the accuracy. If the immersion length is
too small, errors in the measurement are caused by heat conduction via the process
connection and the container wall. For installation in a pipe, therefore, the recommended
installation depth ideally corresponds to half of the pipe diameter.
• Installation possibilities: Pipes, tanks or other plant components
• Minimum immersion depth = 80 to 100 mm (3.15 to 3.94 in)
The immersion depth should be at least 8 times the diameter of the thermowell. Example:
Thermowell diameter 12 mm (0.47 in) x 8 = 96 mm (3.8 in). We recommend a standard
immersion depth of 120 mm (4.72 in).
For pipes with small nominal diameters, ensure that the tip of the thermowell extends
far enough into the process so that it also protrudes past the axis of the pipe
((→  16,  19), item A and B). Another solution may be diagonal installation
((→  16,  19), item C and D). To determine the immersion length or installation
depth, all parameters of the thermometer and the process to be measured must be taken
into account (e.g. flow velocity, process pressure).
Refer also to the installation recommendations EN1434-2 (D), Figure 8.

Installation EngyCal® RH33
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4.6 Requirements for sizing
To avoid systematic errors, the temperature sensors must be installed shortly upstream and
shortly downstream from the heat exchanger. If the pressure difference between the
temperature measuring points is too large, this can result in an excessively large systematic
error, see the table below.
Temperature differential in [K]
Diff in [bar] 3 5 10 20 30 40 50 60
0.5 0.2 0.2 0.1 0.1 0.1 0 0 0
10.5 0.4 0.3 0.2 0.1 0.1 0.1 0.1
20.9 0.7 0.5 0.3 0.2 0.2 0.1 0.1
31.4 1.1 0.8 0.5 0.3 0.2 0.2 0.2
41.8 1.5 1.0 0.6 0.4 0.3 0.3 0.2
52.3 1.9 1.3 0.8 0.5 0.4 0.3 0.3
62.7 2.2 1.5 0.9 0.6 0.5 0.4 0.3
73.2 2.6 1.9 1.1 0.7 0.6 0.5 0.4
83.6 3.0 2.0 1.2 0.9 0.7 0.5 0.4
94.1 3.3 2.3 1.4 1.0 0.7 0.6 0.5
10 4.5 4.0 2.5 1.5 1.1 0.8 0.7 0.5
The values are indicated as factors of the maximum permitted error of the BTU meter (with
ΔQmin = 3 K (5.4 °F)). The values below the gray line are higher than 1/3 of the maximum
permitted error of the BTU meter (with ΔQmin = 3 K (5.4 °F)).
If 2 different heat carriers (e.g. room heating and household hot water) merge shortly
upstream from the temperature sensor, the optimum position of this sensor is directly
downstream from the flow measuring point.
4.7 Post-installation check
For installing the BTU meter and the associated temperature sensors, observe the general
installation instructions according to EN 1434 Part 6 and Technical Guideline TR-K 9 of the
PTB (the German National Metrology Institute). TR-K 9 is provided on the CD-ROM supplied
or can be downloaded from the PTB website.