Kobold HEINRICH DWF-S User manual

Installation and operating manual DWF
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Density meter DWF
Installation and operating manual
Read these Operation Instructions thoroughly and keep them available for reference!

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Installation and operating manual DWF
Table of Contents
I. Steps prior to operation 4
1.1 Safety first! 5
1.2 Safety advisory for the user 5
1.3 Hazard warnings 5
1.4 Proper use of the device 6
1.5 Returning your sensor for servicing or calibration 6
2. Definition of the device 7
3. Applications 7
4. Operating principle and system configuration 8
5. Technical Data 9
6. Construction 10
6.1 Type of dimensions 10
6.2 Construction details 11
7. Output 12
7.1 KEI 1 or KEI 2 limit switches 12
7.2 Analog output with the ES magneto-electric transmitter 12
8. Characteristic values 12
9. Operating conditions 13
9.1 Fluid conditions 13
9.2 Mounting requirements, 13
9.3 Transport safety 13
9.4 Mounting/start-up 14
9.5 Magnetic filter 14
9.6 Device settings 15
9.6.1 Adjusting the limit transducer 15
9.7 Ambient conditions 15
9.8 Electromagnetic compatibility 15
10. Operation in hazardous areas 16
10.1 Without electrical equipment 16
10.2 With built-in electrical limit transducers 16
10.2.1 Example for built-in limit transducer: 16
10.2.2 Example for built-in sensor Type ES: 17
10.3 Marking for the electric device 17
10.3.1 Marking when the SJ 3,5...N... limit transducer is mounted 17
10.3.2 Marking for the device when the ES magneto-electric transmitter is mounted 17

Installation and operating manual DWF
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11. Electrical connection 18
11.1 Wiring diagram for ES transmitter (signal output 4-20 mA with HART®) 18
11.2 Wiring diagram for ES with 4-20 mA output and 2 limit contacts 19
11.3 Wiring diagram for ES with 4- 20 mA output, pulse output and limit contacts 19
11.4 Wiring diagram for two inductive limit contacts 20
12. Indicator unit 21
13. Auxiliary power 21
14. CE mark 21
15. Order information 21
16. Accessories 21
17. Standards and directives, certificates and approvals 21
18. Safety advisories 22
18.1 Intended purpose 22
18.2 Installation, commissioning, operating personnel 22
19. Maintenance 22
20. Trouble shooting 22
21. Replacement parts 23
22. Packaging, storage, transport 23
23. Exploded views 24
23.1 Complete indicator unit, local with scale 24
23.2 Complete indicator unit with 1 SJ 3,5 N limit transducer 24
23.3 Complete indicator unit with 2 SJ 3,5 N limit transducers 25
23.4 Indicator unit with transmitter type ES Ex HART25
24. Declaration of conformity 26
25. Notes 29
26. Decontamination certificate for device cleaning 30

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Installation and operating manual DWF
I. Steps prior to operation
It is essential that you read these operating instructions before installing and operat-
ing the device.
The device is to be installed and serviced by a qualified technician only.
The density - meter DWF is to be used exclusively to measure density, as well as
liquid, in conjunction with technical specification by Heinrichs Messtechnik.
This installation and operating manual explains how to operate, install and perform
maintenance on the density meter.
The manual doesn’t apply to non-standard versions or applications.
All devices are thoroughly tested and checked for order compliance prior to shipping. Upon receipt of the
device, check it for shipping damage.
If any problem comes to light, contact our head office in Cologne or the local sales office responsible for
your area. Please describe the problem and indicate type and serial number of the device. Heinrichs
Messtechnik extend no guarantee of any kind for repair work that is undertaken without notifying us in
advance of the intention to carry out such work. Unless otherwise agreed, any part or component for
which a claim is lodged is to be sent to us for examination.
Downloading of the present document from our web site www.heinrichs-mt.com and printing out this doc-
ument is allowed only for purposes of using our DWF density-meter. All rights reserved. No instructions,
wiring diagrams, and/or pictures, or any portion thereof, may be produced, stored, in a retrieval system or
transmitted by any means, electronic, mechanical, photocopying or otherwise, without the prior written
permission of Heinrichs Messtechnik GmbH.
Although the materials in the present document were prepared with extreme care, errors cannot be ruled
out. Hence, neither the company, the programmer nor the author can be held legally or otherwise respon-
sible for any erroneous information and/or any loss or damage arising from the use of the information
herein.
Heinrichs Messtechnik GmbH extends no express or implied warranty in regard to the applicability of the
present document for any purpose other than that described herein.
We plan to optimize and improve the products described herein and in so doing will incorporate not only
our own ideas but also, and in particular, any suggestions for improvement made by our customers. If you
feel that there is any way in which our products could be improved, please send your suggestions to the
following address:
Heinrichs Messtechnik GmbH
HM-E (Development Department)
Headword: DWF
Robert-Perthel-Straße 9
D-50739 Köln
or:
via E-mail: mailto:[e-mail]

Installation and operating manual DWF
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We reserve the right to change the technical data herein in the light of any technical progress
that might be made. For updates regarding the product herein, visit our website at
www.heinrichs-mt.com, where you will also find contact information for the Heinrichs Messtechnik distribu-
tor nearest you. For information regarding our own sales operations, contact us at [e-mail].
1.1 Safety first!
The device described herein is to be installed and serviced only by a qualified specialist such as a quali-
fied Heinrichs Messtechnik mechanic or service technician.
Warning
Before servicing the device, it must be completely empty, and disconnected from all pe-
ripheral devices. Only original replacement parts are to be used.
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, over voltage or lightning. Any such improper operation,
use or handling shall automatically invalidate the warranty for the product concerned.
In the event a problem arises with your device, please contact us at one of the following numbers to ar-
range to have your device repaired:
Phone: [phone]
Fax: [phone]
Contact our customer service department if your device needs repair or if you need assistance in diagnos-
ing a problem with your device
1.2 Safety advisory for the user
The present document contains the information that you need in order to operate the product described
herein properly. The document is intended for use by qualified personnel. This means personnel, who are
qualified to operate the device described herein safely,
mechanic engineers,
service technicians
who are conversant with the safety regulations pertaining to the use of Measuring and control engineering
devices and with the applicable laws and regulations in their own country.
Such personnel must be authorized by the facility operator to install, commission and service the product
described herein, and are to read and understand the contents of the present operating instructions before
working with the device.
1.3 Hazard warnings
The purpose of the hazard warnings listed below is to ensure that device operators and maintenance per-
sonnel are not injured and that the density-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.

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Installation and operating manual DWF
Danger
means that failure to take the prescribed precautions will result in death, severe bodily injury, or substan-
tial material damage.
Warning
means that failure to take the prescribed precautions could result in death, severe bodily injury, or sub-
stantial material damage.
Caution
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.
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.
1.4 Proper use of the device
Warning
The operator is responsible for ensuring that the material used in the sensor and
housing is suitable and that such material meets the requirements for the fluid be-
ing used and the ambient site conditions. The manufacturer accepts no responsibil-
ity 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.
1.5 Returning your sensor for servicing or calibration
Note: In accordance with the applicable German waste disposal legislation, the owner/client is respon-
sible for the disposal of special waste and hazardous materials.
Consequently, all devices sent to us for repair must be free of any hazardous materials.
This also applies to possible hollow spaces and fissures in the devices. If repair is necessary, confirm the
above-mentioned item in writing
Warning
The operator is liable for any loss or damage of any kind, including personal injury,
decontamination measures, removal operations and the like that are attributable to
inadequate cleaning of the device.
Any device sent in for servicing is to be accompanied by a certificate as
specified in Decontamination certificate for device cleaning.
The device is to be accompanied by a document describing the problem with the device. Please include in
this document the name of a contact person that our technical service department can get in touch with so
that we can repair your device as expeditiously as possible and therefore minimize the cost of repairing it.
If hazardous materials remain in or on the device after it has been returned, Heinrichs Messtechnik
shall be authorized to remove them at the client’s expense without further inquiry!

Installation and operating manual DWF
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2. Definition of the device
Vendor / Manufacture
Heinrichs Messtechnik GmbH
Robert –Perthel - Str. 9 D-50739 Köln
Phone [phone] - 0
Fax [phone] - 178
Internet: http://www.heinrichs-mt.com/
E-Mail: mailto:[email protected]
Product type and designation
Mechanical density - meter DWF
Manual issue date
30.06.2020
Version No.
20.01
file: DWF_BA_20.01_en
3. Applications
The sensor DWF is used for density metering of liquid media in pipes. The scale on the device shows the
density rate expressed as grams per liter or kg per m³. Special scale on your request.
Applications: density -metering, -monitoring, and control of liquid media.
The device can be fitted with limit switches for purposes or ES converter of process monitoring.
Note: The device is of limited use for the metering of potentially hazardous liquids. It is imperative that the
operator takes steps to ensure that, no personnel are harmed and no equipment is damaged. The system
operator is legally responsible for any effects provoked by operation of the device.

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Installation and operating manual DWF
4. Operating principle and system configuration
The measuring element is composed of a measuring
chamber (1), measuring spring-rods (3), float (2) and
a magnetic coupling system (4+5).
If a liquid medium flows through the horizontal meas-
uring chamber (1) and in direction to the arrow, the
float surrounded by the liquid is lifted until a state of
balance between the lift force (A), the measuring
spring-rods (3) and the float weight (GA) is reached.
The vertical position of the float in the chamber is a
measure for the density of the medium and will be
transmitted to the scale (6) by an encapsulated mag-
netic coupling system (4+5).
Density changes thus entail an adjustment of the local
indication or of the electrical output signal.
The readings obtained apply solely to the medium for
which the device has been calibrated or for a medium
with the same viscosity.

Installation and operating manual DWF
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5. Technical Data
Equipment execution:
DWF-S
Stainless steel
DWF-H
Hastelloy
Process - connection
DIN / EN
Body 1 Ø D=108mm
25 PN40
Body 2 Ø D=140mm
50 PN40
Body 3 Ø D=194mm
50 PN40
Max. process pressure
PN16
higher pressure on request
Ambient conditions
dimension
700mm
Flow direction
horizontal
Flow in and out
horizontal
Largest flow range
Body 1
max. 2500 l/h
water 20°C
Body 2
max. 5000 l/h
Body 3
max. 10000 l/h
Measuring range
density
700 –1900 g/l
Measuring span
50g/l … 600g/l
Measured error
50 g/l
± 1,25 g/l
100 g/l
± 2 g/l
200 g/l
± 3 g/l
300 g/l
± 4,5 g/l
600 g/l
± 6 g/l
Repeatability
± 1% of Measuring span
Linearity
± 1% of Measuring span
Ambient conditions
Ambient temperature
-20°C … +80 °C without electrical accessories
-20°C … +70 °C with ES converter
-20°C ... +65 °C with limit transducer
Storage temperature
identical to the ambient temperature ranges.
Climatic category
weather-protected and/or unheated locations,
class C according to IEC 654 Part 1
Shock resistance /
vibration resistance
the meter should be protected against extreme
shocks and vibrations, which could end in
damage.
Fluid conditions
Fluid temperature
-20°C … +150°C
Max. flow
max. flow ranges of the bodys based on density
and viscosity of water at 20°C.
It will be less by higher density and viscosity.
Physical state
liquid
Viscosity
measuring output will be changed by viscosity of
liquid.
Options
Limit switches
KEI 1 (inductive)
KEI 2 (inductive)
ES converter
HART
Profibus PA
Magnetic filter
On request
Connections
special connections on request

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Installation and operating manual DWF
6. Construction
6.1 Type of dimensions
DN / EN PN Ø D (mm) A (mm) B(mm) DWF Nr.
25 40 108 30 258 1
50 40 140 40 258 2
50 40 194 65 258 3