Kobold Heinrichs HPC Series User manual

Heinrichs Messtechnik GmbH
EX-Supplementary Operating Manual HPC
January 2021
Supplementary Operating Manual for
explosion-proof flow meters
This operating manual contains important information for the operation in potentially explosive atmospheres
Please read the instructions carefully and store them in a safe place for future reference
Coriolis mass flow sensors
UMC4 with
HPC

Heinrichs Messtechnik GmbH
Page 2 of 20
EX-Supplementary Operating Manual
HPC Mass Flow Meter
CONTENTS
INTRODUCTION...............................................................................................................................................3
1STEPS PRIOR TO OPERATION .............................................................................................................4
1.1 Installation, mounting, commissioning and maintenance........................................................................................4
1.1 Hazard warnings ...................................................................................................................................................................5
1.2 Proper use of the device .....................................................................................................................................................5
2IDENTIFICATION ......................................................................................................................................6
3GENERAL INFORMATION ABOUT EXPLOSION PROTECTION..................................................... 7
4SPECIFICATIONS......................................................................................................................................8
4.1 Description of the HPC Mass-Flow Sensor...................................................................................................................8
4.2 Device identification.............................................................................................................................................................8
4.3 Mounting and Installation ..................................................................................................................................................9
4.3.1 Thermally insulated sensor ......................................................................................................................................9
4.3.2 Heated sensor ..............................................................................................................................................................9
4.3.3 Connection sensor –transmitter............................................................................................................................9
4.4 EC Type-Examination .......................................................................................................................................................11
4.4.1 Sensor Parameters ..................................................................................................................................................11
4.4.2 Ambient temperature range Ta ............................................................................................................................12
5INSTALLATION AND COMMISSIONING ...........................................................................................13
5.1Mounting ..............................................................................................................................................................................13
5.2 General conditions for safe operation .........................................................................................................................13
5.3 Requirements for installation in all environments...................................................................................................13
5.4 Requirements for installation dust environments...................................................................................................14
5.5 Ex relevant screw and bolt torques ..............................................................................................................................14
6MAINTENANCE AND REPAIR WORK ...............................................................................................15
6.1 Definition of terms according to IEC 60079-17:.......................................................................................................15
6.2 Fault elimination.................................................................................................................................................................16
6.3 Disposal.................................................................................................................................................................................16
7WARNINGS..............................................................................................................................................16
8MODEL CODE .........................................................................................................................................17
9DECLARATION OF CONFORMITY......................................................................................................18

Heinrichs Messtechnik GmbH
EX-Supplementary Operating Manual
HPC Mass Flow Meter
Page 3 of 20
Introduction
I Shipping and storage
The device is to be safeguarded against moisture, dirt, impact and damage.
II Product inspection
Upon receipt of the product, the consignment should be checked for completeness. The data of the device
have to be compared with the packing slip and the order documents
Notify us of any shipping damage immediately upon receipt of the product. Any damage claim received at a
later time will not be honoured.
III Warranty
Your flow sensor was manufactured in accordance with the highest quality standards and was thoroughly
tested prior to shipment. However, in the event any problem arises with your device, we will be happy to
resolve the problem for you as quickly as possible under the terms of the warranty which can be found in the
terms and conditions of delivery. Your warranty will only be honoured if the device was installed and operated
in accordance with the instructions for your device. Any mounting, commissioning and/or maintenance work is
to be carried out by qualified and authorized technicians only.
IV Validity of this operating manual
The present instructions apply to explosion-proof Coriolis flow sensors of the HPC series, as of
year of construction November 2018 or later. These instructions are supplementary operating
manual for non-explosion proof Coriolis flow sensors. If you do not have a copy of the latter
instructions, please request one from Heinrichs Messtechnik GmbH or download the
instructions from our website.
The instructions herein pertain primarily to explosion proof Coriolis flow sensors for use in conjunction with an
explosion proof certified transmitter. The technical data in the mounting and operating instructions for non-
explosion proof Coriolis flow sensors still apply insofar as the present instructions do not replace them or
exclude their application.
The transmitter used in conjunction with an HPC sensor must be listed for use in its country of installation.
The manufactures installation drawings shall be followed when installing.
V Repairs and hazardous materials
It is important that you do the following before shipping your flow sensor to Heinrichs Messtechnik GmbH for
repair:
Enclose a description of the problem with your device. Describe in as much detail as possible the
application and the physical and chemical properties of the fluid.
Remove any residues from the device and be sure to clean the seal grooves and recesses thoroughly. This
is particularly important if the fluid is corrosive, toxic, carcinogenic, radioactive or otherwise hazardous.
The operator is liable for any substance removal or personal damage costs arising from inadequate cleaning of
a device that is sent for repair.

Heinrichs Messtechnik GmbH
Page 4 of 20
EX-Supplementary Operating Manual
HPC Mass Flow Meter
1Steps prior to operation
Prior to installation and operation, it is essential that the operator familiarizes himself
with all of the instructions and information contained in the manual for non-explosion
proof Coriolis flow meters as well as the present instructions. If any part of either
manual is missing, contact Heinrichs Messtechnik GmbH to request a new manual.
These manuals can also be downloaded from our website.
The HPC sensors described herein are only to be used to measure mass and volume
flow, as well as liquid and gas density and temperature, in conjunction with a transmitter certified for use in
the area and country of operation.
1.1 Installation, mounting, commissioning and maintenance
Installation, mounting, commissioning and maintenance are to be performed by a technician trained to work
with explosion-proof devices, or by a Heinrichs Messtechnik service technician.
Warning
Any safety relevant maintenance or repairs in terms of explosion-protection is to be carried
out by the manufacturer, an authorized Heinrichs Messtechnik GmbH service centre or
under the supervision of an expert in explosion proof devices.
Heinrichs Messtechnik GmbH accepts no liability for any loss or damage of any kind arising from improper
operation of any product, improper handling or use of any replacement part, or from external electrical or
mechanical effects, overvoltage or lightning. Any such improper operation, use or handling shall
automatically invalidate the warranty for the product concerned.
In the event of a problem please contact the service centre of Heinrichs Messtechnik:
Phone: [phone]
Fax: [phone]
Internet: www.heinrichs.eu
Email: [email protected]
Contact our customer service department if your device needs repair or if you need assistance in diagnosing a
problem with your device.

Heinrichs Messtechnik GmbH
EX-Supplementary Operating Manual
HPC Mass Flow Meter
Page 5 of 20
1.1 Hazard warnings
The purpose of the hazard warnings listed below is to ensure that device operators and maintenance
personnel are not injured and that the flow meter and any devices connected to it are not damaged.
The safety advisories and hazard warnings in the present document that aim to avoid placing operators and
maintenance personnel at risk and to avoid material damage are prioritized using the terms listed below,
which are defined as follows in regard to the instructions herein and the advisories pertaining to the device
itself.
Warning
means that failure to take the prescribed precautions could result in injury, substantial material
damage or even death. Always comply to these warnings and proceed with caution.
Caution
means that failure to take the prescribed precaution could result in material damage or
destruction of the device. We advice always to abide to these instructions!
Note
means that the accompanying text contains important information about the product, handling
the product or about a section of the documentation that is of particular importance.
1.2 Proper use of the device
Warning
The operator is responsible for ensuring that the material used in the sensor and
transmitter housing is suitable and that such material meets the requirements for the fluid
being used and the ambient site conditions. The manufacturer accepts no responsibility in
regard to such material and housing.
Warning
In order for the device to perform correctly and safely, it must be shipped, stored, set up,
mounted operated and maintained properly.

Heinrichs Messtechnik GmbH
Page 6 of 20
EX-Supplementary Operating Manual
HPC Mass Flow Meter
2Identification
Manufacturer:
Heinrichs Messtechnik GmbH
Robert-Perthel-Strasse 9
D-50739 Cologne
Germany
Phone: [phone]
Fax: [phone]
Internet: www.heinrichs.eu
Email: [email protected]
Product type:
Mass flow-rate meter for liquid and gaseous products
Product name:
HPC
Coriolis Mass Flow Sensor
File name:
hpc_ex_ba_21.01_en.doc
Version:.
21.01,
Date, January 31, 2021

Heinrichs Messtechnik GmbH
EX-Supplementary Operating Manual
HPC Mass Flow Meter
Page 7 of 20
3General information about explosion protection
Acc. Directive 94/9/EC (ATEX)
Example designation
0158
II
2G
Ex
ia
IIC
T6
Gb
Equipment groups
I
Equipment group I applies to equipment intended for use in underground
parts of mines as well as those parts of surface installations of such mines
endangered by firedamp and/or combustible dust.
II
Equipment group II applies to equipment intended for use in other places
liable to be endangered by explosive atmospheres. This group is subdivided
into three categories.
Equipment category
Gas
Dust
Definition
1G
(0)
1 D
(20)
Equipment in this category is intended for use in areas in which
explosive atmospheres caused by mixtures of air and gases,
vapours or mists or by air/dust mixtures are present continuously,
for long periods or frequently.
2 G
(1)
2 D
(21)
Equipment in this category is intended for use in areas in which
explosive atmospheres caused by gases, vapours, mists or air/dust
mixtures are likely to occur.
3G
(2)
3D
(22)
Equipment in this category is intended for use in areas in which
explosive atmospheres caused by gases, vapours, mists, or air/dust
mixtures are unlikely to occur or, if they do occur, are likely to do so
only infrequently and for a short period only.
(The numbers in round brackets correspond to the IEC Zones.)
Acc. EN 60079-0 ff / IEC 60079-0 ff
Ex = Explosion-proof electrical equipment
Types of protection
General requirements
IEC 60079-0
„d“
Flameproof enclosure
IEC 60079-1
„e“
Increased safety
IEC 60079-7
„i“
Intrinsic safety (ia, ib)
IEC 60079-11
„t"
Equipment dust ignition protection by
enclosure "t" (ta, tb or tc)
EN 60079-31
Explosion groups
Gases and vapours
IIA
Acetone, benzene, fuel oil, ethanoic acid
IIB
City gas, ethylene, isoprene
IIC
Acetylene, hydrogen, carbon bisulphide
Dust Atmospheres
IIIA
Fibers and flyings
IIIB
Non-conductive dusts
IIIC
Metal dusts
Temperature classes
Maximum surface temperature
Temperature class
450 °C
842 °F
T1
300 °C
572 °F
T2
200 °C
392 °F
T3
135 °C
275 °F
T4
100 °C
212 °F
T5
85 °C
185 °F
T6
Equipment protection level, EPL
Gases: Ga, Gb oder Gc
Dust: Da, Db or Dc
Explosion protection designations [square brackets] refer to “Related electrical equipment or circuits.”

Heinrichs Messtechnik GmbH
Page 8 of 20
EX-Supplementary Operating Manual
HPC Mass Flow Meter
4Specifications
4.1 Description of the HPC Mass-Flow Sensor
The HPC sensor has an “Intrinsic safety” type of protection and is equipped with the following four
independent potential-free and isolated circuits:
Excitation circuit
Sensor circuit 1
Sensor circuit 2
Temperature sensor circuit (RTD)
All circuits have safe separation from one another within the sensor
The transmitter shall be connected to the sensor using a dedicated cable specially designed for this purpose.
Such a cable can be purchased from Heinrichs Messtechnik during your order process.
4.2 Device identification
The rating plates on Heinrichs Messtechnik flow meters that are suitable for use in potentially explosive
atmospheres are labelled accordingly. Since the sensor and transmitter are separately certified, each device
has its own rating plate.
The HPC rating plates contain all the information necessary to identify the sensor, and for determining it’s
suitability for a potential explosive atmosphere.
Image 1: HPC for process temperatures ranging from –40 °C to 80 °C.
Image 2: HPC for process temperatures ranging from –40 °C to 180 °C

Heinrichs Messtechnik GmbH
EX-Supplementary Operating Manual
HPC Mass Flow Meter
Page 9 of 20
4.3 Mounting and Installation
The mounting instructions for the standard sensor also apply to the explosion-proof sensor.
4.3.1 Thermally insulated sensor
In explosive atmospheres the sensor may also be outfitted with thermal insulation. However, so not to impair the
sensors thermal ratings, the sensors neck cooling ribs of the high-temperature version shall not be included in
the insulation. The connector of the standard version may be completely enveloped by the insulating material.
4.3.2 Heated sensor
The sensor can be externally heated to avoid crystallization in the flow tube. Any heating technique or device
can be used. When using electrical heating devices, these must be suitable for use in the potentially explosive
environment present.
It is the operator’s responsibility to ensure that the heating temperature does not exceed the maximum
allowable temperature for the fluid and/or the maximum allowable temperature range for the potentially
explosive atmosphere in which the device is being operated.
The maximum allowable temperature range for the fluid is indicated on the sensors rating plate. It is also the
operator’s responsibility to ensure that no hazards are created by hot surfaces pursuant to EN 1127-1
(Explosive atmospheres –Explosion prevention and protection) paragraphs 5.2 and 6.4.2.
4.3.3 Connection sensor –transmitter
The associated transmitter used in connection with the HPC sensor must be listed in the country of intended
installation. The installation drawings provided by the manufacturer must be observed! It is essential that the
output parameters of the converter match the input parameters of the sensor.
The dedicated cable SLI2Y (SP) CY 5 x 2 x 0.5 mm² [blue] is to be used for the electrical connection between
sensor and the remote mounted transmitter. This cable, which is available from Heinrichs Messtechnik, has
five twisted wire pairs, each of which has a foil shield, and a tinned copper strand wound around each pair.
These tinned copper strands are twisted together are installed in the “shield” terminal of the transmitter. All 5
cable pairs are shielded by a further tinned copper wire mesh. This outer cable shield is connected to the
transmitters housing, via a dedicated EMC cable fitting, as well as to the outer-casing of the sensor’s
connector thus ensuring optimum noise immunity.
Image 3: Heinrichs standard SLI2Y (SP) CY 5 x 2 x 0.5 cable with HAN R23 connector

Heinrichs Messtechnik GmbH
Page 10 of 20
EX-Supplementary Operating Manual
HPC Mass Flow Meter
4.3.3.1 Pin assignment of the Sensor cable
Pin Designation
Terminal / Pin designation
Type of protection
Ex ia
Sensor lines
Pick-Up coil 1 +
1
x
Pick-Up coil 1 -
2
x
Pick-Up coil 2 +
3
x
Pick-Up coil 2 -
4
x
TIk-
5
x
Temperature sensor -
6
x
Temperature sensor +
7
x
TIk+
8
x
EXCITER Coil
9
x
EXCITER Coil
10
x
Shield
Shield
x
Note: Sensor and transmitter are always mounted separately.
4.3.3.2 Cable Parameters
The operator is to comply in all cases with the applicable installation regulations of the corresponding region
or country such as EN 60079-14 “Electrical apparatus for explosive gas atmospheres- Part 14: Electrical
installations in hazardous areas” for Europe, Section 18 of the Canadian Electrical Code for Canada or Article
NEC 504 and / or NEC 505 for the United States.
Applicable guidelines pertaining to the interconnection of intrinsically safe circuits must also be observed.
The following maximum cable parameters must be abided to:
CL= 100 pF/m wire to wire
CL= 170 pF/m wire to shield
LL= 700 µH/km wire to wire
LL= 500 µH/km wire to shield
Warning
If a connecting cable other than the Heinrichs Messtechnik cable is used, a comprehensive
assessment is required to ensure it fulfils all the requirements of the applied protection classes
and the area of installation
4.3.3.3 Equipotential bonding
Equipotential bonding between the sensor and transmitter is essential and must be established and
maintained. Connection points are provided on the outside of the sensor and transmitter for this
purpose.