RHEONIK RHE42 User manual
RHE 42 Coriolis transmitter
User Manual
Rheonik Messtechnik GmbH
Rudolf-Diesel-Straße 5
D-85235 Odelzhausen
Germany
Tel + 49 (0)8134 9341-0
info@rheonik.com
Document No.: BA02RHE42202207
Version 04
November 2023
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RHE 42 Coriolis transmitter
Foreword
Foreword
This installation guide contains important information regarding how to install, start up, and safely operate
the RHE42 Coriolis transmitter as intended together with an RHM Coriolis sensor. The German version of the
installation guide is the original installation guide. It supplements the information provided in the RHE 40
desktop reference. The RHE 40 desktop reference and further information are available to download from the
Rheonik Messtechnik GmbH website: ⮫
https://rheonik.com
.
Copyright
This installation guide is protected by copyright law. Any use that goes beyond the strict limits set by copy-
right law is forbidden and liable for prosecution without the prior consent of Rheonik Messtechnik GmbH. This
also applies to any reproduction, translation and microlming in addition to saving and editing in electronic
media. Any infringements will be liable for compensation!
Disclaimer
Rheonik Messtechnik GmbH accepts no liability for personal injury, damage to property or accidents caused
by the following:
■Failure to observe the installation guide
■Failure to observe the safety regulations
■Using the RHE42 Coriolis transmitter in an impermissible manner
Liability
Claims for compensation against Rheonik Messtechnik GmbH arising due to a breach of pre-contractual or
contractual obligations or tortious acts shall exist only in the case of intent or gross negligence on the part of
the seller, their representatives or vicarious agents.
If Rheonik Messtechnik GmbH breaches essential contractual obligations due to gross negligence, the extent
of the liability shall be restricted to the typically foreseeable loss. If performance is impossible or in the case
of default, the claims for compensation shall be restricted to reimbursement of the typically foreseeable loss.
If a vicarious agent of Rheonik Messtechnik GmbH acts in a grossly negligent manner, Rheonik Messtechnik
GmbH shall be liable to the extent of the typically foreseeable loss. The liability in the case of a breach
of essential contractual obligations and in the case of fraudulent intent on the part of the seller remains
unaected by this. In the case of physical injury or damage to well-being and health, the applicable statutory
regulations shall apply.
Other applicable documents
The following documents contain additional information regarding how to operate the RHE42 Coriolis trans-
mitter:
■RHE 40 desktop reference (operation manual)
■RHEComPro User Manual (operation manual)
■RHE 40 HART Manual (operation manual)
■RHE20/40 Addendum PID Controller (operation manual)
■RHE40 Addendum Data Logging (operation manual)
■RHE40 Addendum Precision Flow Analysis (operation manual)
■RHE40 Addendum Statistics (operation manual)
■RHE16/20/40 Modbus Map (list of Modbus registers)
■RHM Coriolis sensor (operation manual)
The documents are available to download from the Rheonik Messtechnik GmbH website: ⮫
http://rheonik.com
.
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RHE 42 Coriolis transmitter
Foreword
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RHE 42 Coriolis transmitter
Table of contents
Table of contents
1 About this guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Target group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Declaration of Conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.5 Symbols used in this guide. . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 How warnings are structured and what they mean. . . . . . 10
2.2 Safety and associated safety measures. . . . . . . . . . . . . . . . 11
2.3 Personnel qualications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3 Intended use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 Intended use RHE42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 Impermissible use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4 Product description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 Model code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.2 Protection classes and safety areas (explosion protec-
tion). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5 Transportation, storage, scope of delivery. . . . . . . . . . . . . . . . 21
6 Installing the RHE42 Coriolis transmitter. . . . . . . . . . . . . . . . . 23
6.1 Installing the RHE42 Coriolis transmitter onto a wall or
mounting plate (RHE42-R*). . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.2 Installing the RHE42 Coriolis transmitter on a pipe
(RHE42-R*). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7 Connecting the RHE42 Coriolis transmitter. . . . . . . . . . . . . . . 26
7.1 Connecting the RHE42 Coriolis transmitter to the RHM
Coriolis sensor (RHE42-R*). . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.2 Connecting the power supply, inputs/outputs and signal
cables to on the RHE42 Coriolis transmitter. . . . . . . . . . . . 31
7.3 Wiring diagrams for the power supply, RS485 and
Modbus TCP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.3.1 Connecting the power supply. . . . . . . . . . . . . . . . . . . . . . 37
7.3.2 Connecting the RS485 interface. . . . . . . . . . . . . . . . . . . . 37
7.3.3 Connecting the Modbus TCP interface. . . . . . . . . . . . . . . 39
7.3.4 Connecting the Foundation Fieldbus / Probus inter-
face. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
7.4 Wiring diagrams for non-intrinsically safe inputs and out-
puts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
7.4.1 Connecting non-intrinsically safe analogue outputs. . . 41
7.4.2 Connecting non-intrinsically safe digital outputs. . . . . 42
7.4.3 Connecting non-intrinsically safe digital inputs. . . . . . . 43
7.4.4 Connecting a non-intrinsically safe HART interface. . . 44
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RHE 42 Coriolis transmitter
Table of contents
7.5 Wiring diagrams for intrinsically safe inputs and outputs. 45
7.5.1 Connecting intrinsically safe analogue outputs. . . . . . . 45
7.5.2 Connecting intrinsically safe digital outputs. . . . . . . . . . 46
7.5.3 Connecting intrinsically safe digital inputs. . . . . . . . . . . 46
7.5.4 Connecting an intrinsically safe HART interface. . . . . . 47
8 Start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
8.1 Function of the keys on the RHE42 Coriolis transmitter. . 49
8.2 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
8.3 Initial start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
8.3.1 Calibrating the zero point. . . . . . . . . . . . . . . . . . . . . . . . . . 54
8.3.2 Changing the ow direction. . . . . . . . . . . . . . . . . . . . . . . . 56
8.3.3 Reading out the IP address. . . . . . . . . . . . . . . . . . . . . . . . . 58
8.3.4 Setting up the RS485 interface. . . . . . . . . . . . . . . . . . . . . 59
8.3.5 Setting the units of measurement. . . . . . . . . . . . . . . . . . . 61
8.3.6 Conguring analogue outputs. . . . . . . . . . . . . . . . . . . . . . 63
8.3.7 Conguring digital outputs. . . . . . . . . . . . . . . . . . . . . . . . . 66
8.3.8 Conguring digital inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . 69
8.3.9 Performing an output test. . . . . . . . . . . . . . . . . . . . . . . . . . 72
9 Operation, operating modes, using the device. . . . . . . . . . . . 75
9.1 Resetting the mass ow and volume meters. . . . . . . . . . . . 75
9.2 Adjusting the display settings. . . . . . . . . . . . . . . . . . . . . . . . . 76
9.3 Setting the lter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
10 Servicing, maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
10.1 Reading out the Assurance Factor and displaying the
Assurance View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
10.2 Reading out the zero point. . . . . . . . . . . . . . . . . . . . . . . . . . . 82
11 Displaying errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
12 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
13 Returns and disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
14 Appendix A: Ex-Safety Instructions
(product approval information). . . . . . . . . . . . . . . . . . . . . . . . . . . 95
15 Appendices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
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RHE 42 Coriolis transmitter
About this guide
1 About this guide
1.1 General information
This installation guide contains important information regarding how to
install, start up, and safely operate the RHE42 Coriolis transmitter as
intended. Carefully read the information in this installation guide before
starting any work with or on the RHE42 Coriolis transmitter, and make
sure you have understood everything.
1. Please familiarise yourself with the information in this installation
guide.
2. Observe the safety instructions and warnings in this installation
guide.
1.2 Target group
This installation guide is aimed at operating personnel and at anyone
who has been tasked with the installation and start-up work by the
operating personnel.
1.3 Storage
This installation guide is an essential part of the RHE42 Coriolis trans-
mitter and must be stored such that it remains accessible to personnel
at all times.
1.4 Declaration of Conformity
The versions of the RHE42 Coriolis transmitter described in this instal-
lation guide comply with the applicable standards and guidelines/direc-
tives.
8 / 108
RHE 42 Coriolis transmitter
About this guide
1.5 Symbols used in this guide
In this installation guide, sections containing particularly important
information are identied in line with the type of information they con-
tain, e.g. instructions, lists or references.
Symbol Meaning
Instruction; step in a process
If you need to perform several steps one after the
other, they will be numbered based on their chrono-
logical sequence. Instructions that consist solely of a
single step are not numbered.
Result; outcome of a step
Lists of entries in no particular order
References to gures, sections and chapters
This symbol indicates useful additional information.
9 / 108
RHE 42 Coriolis transmitter
Safety
2 Safety
To ensure that the RHE42 Coriolis transmitter is operated safely and
as intended, it is essential to familiarise yourself with the basic safety
instructions and safety regulations. It is also essential to comply with
the rules and regulations on accident prevention that apply at the
installation location.
This installation guide contains important information regarding how to
safely operate the RHE42 Coriolis transmitter as intended. Carefully read
the information in this installation guide before starting any work with or
on the RHE42 Coriolis transmitter, and make sure you have understood
everything.
10 / 108
RHE 42 Coriolis transmitter
Safety
DANGER: Hazard with a high
risk and that will result in
death or serious injury if not
prevented.
WARNING: Hazard with a mod-
erate risk and that may result
in death or serious injury if not
prevented.
CAUTION: Hazard with a low
risk and that may result in
slight or moderate injury if not
prevented.
ATTENTION (NOTE): Risk of
damage to property if informa-
tion is not observed.
2.1 How warnings are structured and what they mean
When performing dierent types of work either with the or on the
RHE42 Coriolis transmitter, the personnel carry out steps that could
entail hazards. These steps are therefore preceded by a warning.
Warnings are always structured as follows:
■Warning symbol
■Signal word:
–DANGER
–WARNING
–CAUTION
–ATTENTION
■Description of the type of hazard and how it arises
■Description of the potential consequences of disregarding the
hazard
■Description of measures for preventing the hazard
DANGER
Type of hazard and how it arises!
Potential consequence(s) of disregarding the hazard.
−List of measures for preventing the hazard
WARNING
Type of hazard and how it arises!
Potential consequence(s) of disregarding the hazard.
−List of measures for preventing the hazard
CAUTION
Type of hazard and how it arises!
Potential consequence(s) of disregarding the hazard.
−List of measures for preventing the hazard
NOTICE
Type of hazard and how it arises!
Potential consequence(s) of disregarding the hazard.
−List of measures for preventing the hazard
Table of contents
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