Kobold Heinrichs V31 User manual

Heinrichs Messtechnik GmbH
Operating Manual V31
February 2021
Variable Area Flowmeter
V31
Operating Instructions
Please read the instruction manual and keep them in a safe place!

Heinrichs Messtechnik GmbH
Page 2
Operating manual V31
Table of Contents
Introduction 4
I. Shipping and storage; product inspection 4
II. Warranty 4
III. Maintenance, Repair and Hazardous substances 4
IV. Disposal 4
V. Supplementary operating instructions 4
VI. Operating manual of explosion-proof flowmeters 4
1. Steps Prior to Operation 5
2. Safety Advisories 6
2.1 Installation, Commissioning, Operating Personnel 6
2.2 Hazard Warnings 6
2.3 Proper Use of the Device 7
2.4 Installation and servicing 7
2.5 Returning your flowmeter for servicing or calibration 8
3. Identification 9
3.1 Designation / Rating Plate 9
4. Application 10
5. Operating Principle and System Configuration 11
5.1 System Design 12
5.1.1 Type of construction / dimensions 12
5.1.2 Materials 13
5.2 Float Types 14
5.3 Contacts 14
5.3.1 Dimensions of the applied contacts [mm(inch)] 15
5.3.2 Mounting of the limit switches series K17, K33, K33i 16
5.3.3 Adjusting and wiring of the limit switches 17
5.3.4 Wiring diagrams of the limit switches K17 A/B, K33, K33i 18
6. Characteristical Data 19
6.1 Mechanical Data 19
6.2 Measuring Ranges 20
6.2.1 Water 20
6.2.2 Air 20
6.3 Characteristical Values –limit switches 21
6.3.1 K17 A/B –limit switches 21
6.3.2 K33 –limit switches 21
6.3.3 K33i –limit switches 22

Heinrichs Messtechnik GmbH
Operating manual V31
Page 3
7. Installation and Condition for use 23
7.1 Operating Conditions / Installation 23
7.1.1 Installation conditions 23
7.1.2 Startup 23
7.1.3 Pumps 23
7.1.4 Installation 23
7.1.5 Gas metering 24
8. Maintenance 24
9. CE Marking 24
10. Order Information 24
10.1 Basic data 24
10.2 Available accessories 24
11. Model Code V31 25
12. Decontamination Certificate for Device Cleaning 26
13. Declaration of Conformity 27

Heinrichs Messtechnik GmbH
Page 4
Operating manual V31
Introduction
I. Shipping and storage; product inspection
Shipping and Storage
The device is to be safeguarded against moisture, dirt (especially the meters internal), impact and damage. The
storage temperature limits are to be observed. Depending on the device size the area flowmeters float may be
secured. This transport protection must be removed before the device is installed.
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.
II. Warranty
Your flow meter 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.
III. Maintenance, Repair and Hazardous substances
When used in the intended manner no special maintenance is required. However, the flowmeter should be
checked within the context of routine maintenance of the facility and the pipelines. Should a repair, calibration
or maintenance become necessary, be sure to clean the device thoroughly and follow the steps in section 2.5,
“Returning your flowmeter for servicing or calibration” before returning the device to Heinrichs Messtechnik.
The operator is liable for any substance removal or personal damage costs arising from inadequate cleaning of
a device sent for repair.
IV. Disposal
Observe the regulations applicable to disposal in the country of installation!
V. Supplementary operating instructions
Supplement operating manuals are available for special features, interfaces and operations relating to your
device, request your copy from our service department.
VI. Operating manual of explosion-proof flowmeters
For installation of the flowmeter within hazardous areas read the operation manual of explosion-proof
flowmeters. It contains all the EX-relevant information for your flowmeter.
Warning!
Only devices designated as EX-certified on their rating plates may be used in areas of
potentially explosive atmospheres!
The use of standard equipment in EX-hazardous areas is strictly prohibited.

Heinrichs Messtechnik GmbH
Operating manual V31
Page 5
1. Steps Prior to Operation
These montage and operating instructions are provided to help aid in the correct
installation as well as for the operation and maintenance of the meter. It is essential that
you read these operating instructions before installing and operating the device. The
device is to be installed and serviced by a qualified technician only. Special designs and
applications are not included n this manual.
Downloading of the present document from our web site www.heinrichs.eu and printing out this document is
allowed only for the purposes of using our mass flowmeters. All rights reserved. No instructions, wiring
diagrams, and/or supplied software, 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 responsible for
any erroneous information and/or any loss or damage arising from the use of the information enclosed.
Heinrichs Messtechnik GmbH extends no express or implied warranty concerning the applicability of the
present document for any purpose other than that described.
We plan to optimize and improve the products described 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:
Company:
Heinrichs Messtechnik GmbH
HM-EE (R&D Department)
Robert-Perthel-Strasse 9
D-50739 Cologne
Germany
or:
via fax : [phone]
via email: [e-mail]
Note:
We reserve the right to change the technical data in this manual in the light of any
technical progress that might be made.
For updates regarding this product, visit our website at www.heinrichs.eu, where you
will also find contact information for the Heinrichs Messtechnik distributor nearest you.
For information regarding our own sales operations, contact us at [e-mail].

Heinrichs Messtechnik GmbH
Page 6
Operating manual V31
2. Safety Advisories
2.1 Installation, Commissioning, Operating Personnel
The present document contains the information that you need in order to operate the product described herein
properly. This document is intended for use by qualified personnel. This means personnel who are qualified to
operate the device described herein safely, including
➢electronics engineers,
➢electrical engineers, or
➢service technicians
who are conversant with the safety regulations pertaining to the use of electrical and automated technical
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 must have read and understood the contents of this operating instructions before
working with the device.
2.2 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 these 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.

Heinrichs Messtechnik GmbH
Operating manual V31
Page 7
2.3 Proper Use of the Device
The Coriolis Mass Flow Sensor is intended for the sole use of direct and continuous mass flow measurement of
liquids and gases.
To ensure safety for people and the environment adhere to the installation and operational instructions and
warning in this manual
Warning
The operator is responsible for ensuring that the material used in the sensor and
housing are suitable and that such material meets the requirements for the process
medium and the ambient site conditions.
The manufacturer accepts no responsibility for the selection of unsuitably materials.
Warning
Before using the meter with corrosive or abrasive media, the operator must check the
suitability of all materials that come into contact with the media. In the case of special
media, including cleaning media, we will be happy to help you check the corrosion
resistance of materials. However, since small changes in the process temperature,
concentration or the degree of contamination can result in changes in the corrosion
resistance, the full responsibility must remain with the operator.
Caution
To ensure the device performs correctly and safely, it must be shipped, stored, set up,
mounted, operated and maintained correctly.
2.4 Installation and servicing
The devices described in this manual are to be installed and serviced only by qualified technical personnel such
as a qualified Heinrichs Messtechnik electronics engineer or service technician.
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 a problem arises with your device, or if you need assistance in diagnosing a problem with your
device, please contact us at one of the following numbers to arrange to have your device repaired:
[phone] [phone]

Heinrichs Messtechnik GmbH
Page 8
Operating manual V31
2.5 Returning your flowmeter for servicing or calibration
Before sending your flowmeter back to us, for servicing or calibration, make sure it is completely clean. Any
residues of substances that could be hazardous to the environment or human health are to be removed from all
crevices, recesses, gaskets, and cavities of the housing before the device is shipped.
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 Declaration of
Decontamination, a template of which is provided in section 12.
When returned, the device is to be accompanied by a document describing the problems encountered. Please
include in this document the name of a contact person whom our technical service department can contact to
enable us to repair your device as expeditiously as possible and minimize the repair costs.

Heinrichs Messtechnik GmbH
Operating manual V31
Page 9
3. Identification
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:
Variable area flow-meter
Product name:
V31
File name:
v31_ba_21.01_enx.doc
Version:.
21.01,
Date, February 15, 2021
3.1 Designation / Rating Plate
The device and its specifications are presented as a model-code on the rating plate. The model-code consists of
the prefix “V31”followed by an alpha-numerical code.
Refer to section 11 “Model Code V31”for a description of each position.
Example of a V31 rating plate.

Heinrichs Messtechnik GmbH
Page 10
Operating manual V31
4. Application
The V31 variable area flow-meter is used for the flow metering of transparent liquid and gas media in pipes.
The scale on the device indicates the flow rate expressed as a volume or mass per unit of time. Standard scales
are available for liquids with a density of 1kg/l (62.43 lb/cu.ft). The scales must be recalculated for all other
media depending on the physical characteristics.
The flow tube is optionally available with percentage or 2 mm (0.078 inch) scaling.
Applications: Flow metering, dosing, monitoring and control of liquid or gas media.
For the purpose of process monitoring. the device can be fitted with one or more limit switches.
Warning
The device is of limited use for the metering of potentially hazardous liquids and gases.
It is imperative that the operator takes appropriate steps to ensure that in the event of
a glass tube breakage, no personnel are harmed and no equipment is damaged. The
system operator is legally responsible for any effects provoked by operation of the
device

Heinrichs Messtechnik GmbH
Operating manual V31
Page 11
5. Operating Principle and System Configuration
The measuring instrument composes of a float and a
conical glass tube (M)
A medium flows from the bottom to the top through the
measuring ring, lifting the float in the process until the
buoyancy force (A) and the weight of the float (Gs)
establish equilibrium. As the height of the float varies, an
annular clearance (S) proportional to the flow appears
between the float and the measuring tube. The height of
the float (K) in the measuring tube serves as the actual
rate of the flow. The flow rate is read directly from the
scale.
The readings obtained apply solely to the medium for
which the device has been calibrated or for a medium
with the same density and viscosity as the calibration
medium.
The float may also be optionally guided by a float guid
rod. This option is recommended to increase the
operational safety and to protect against glass breakage
in particular operating environments, with the use of solenoid valve controls.
Bei certain levels of viscosity guided floats are essential. This option however cannot be combined with floats
containing magnets or with PVDF coated floats.
For signalling specific flow rates, the variable area flowmeter can be outfitted with limit switches. This option is
only available with floats which possess mounted magnets.

Heinrichs Messtechnik GmbH
Page 12
Operating manual V31
5.1 System Design
5.1.1 Type of construction / dimensions

Heinrichs Messtechnik GmbH
Operating manual V31
Page 13
5.1.2 Materials

Heinrichs Messtechnik GmbH
Page 14
Operating manual V31
5.2 Float Types
There are three types of floats on offer:
The following viscosity limits require a viscosity-stable float:
5.3 Contacts
The bistable magnetic contacts K17A, K17B, K33 and K33i show the position of the float, thus indicating the
measured value in a non-reactive and contact-free means.
Features:
•Bistable behaviour
•High vibration resistance
•Non-reactive switching
•practically inertia less switching
•No interaction between the contact
•Simple plug-in connector
The bistable K33 contact consists of a set of contact springs inside a glass tube filled with inert gas

Heinrichs Messtechnik GmbH
Operating manual V31
Page 15
5.3.1 Dimensions of the applied contacts [mm(inch)]
Dimensions of K33 and K33i assemblies
Dimensions of K17 A/B assemblies

Heinrichs Messtechnik GmbH
Page 16
Operating manual V31
5.3.2 Mounting of the limit switches series K17, K33, K33i

Heinrichs Messtechnik GmbH
Operating manual V31
Page 17
5.3.3 Adjusting and wiring of the limit switches
When ordered, the limit switches are factory set at the ordered values. They can however be adjusted to suit
the operators requirements.
For re-adjusting an M4 nut (SW7) must be released until the clamping position can be adjusted. Now the limit
switch can be slid into a its new position. After the switch has been positioned, tighten the nut /SW7) until the
contact clamp is secured in place.
Cable mounting and wiring K17 A/B, K33 and K33i:
1. Unscrew locking screw (5) from the cover (4)
and lift the entire cover (4) from the contact
housing (1). Caution –do not lose or damage
the sealing (10) between plug and housing
2. Unscrew cable connection (9) and remove
sealing inserts (6,7,8) from the cover.
3. Pull screw (5) out of the cover (4) and
carefully lever the insertion part (3) out of the
cover (4).
4. Pull connection cable Ø 4-7,5 mm through
the cable connection and insert sealing
inserts into the plug. Dismantle the cables
insulation at the required length and fix the
wiring sockets. Finally wire-up to the
terminals of the insert according to the wiring
diagram.
5. The reassembly of the connector is
performed in reverse order. The insert part (3) can be mounted in 90° steps so that the cable –after
plugging –will be guided either to the left, the right, the top or the bottom.
Vorsicht:
Please note that the seal of the cable gland seals on the jacket of the cable! Tighten the
cable gland firmly! Damaged seals (10) plug / housing (1 and 4) must be replaced with
seals and housing parts of the same type.
Before commissioning. or putting into operation by the user, we recommend that the float is manually passed
by the contact. By this means, the correct start position of the contact can be ensured.

Heinrichs Messtechnik GmbH
Page 18
Operating manual V31
5.3.4 Wiring diagrams of the limit switches K17 A/B, K33, K33i

Heinrichs Messtechnik GmbH
Operating manual V31
Page 19
6. Characteristical Data
6.1 Mechanical Data
Measuring range Turndown ratio 1:10
Water 3 - 30 l/h
Air 36 - 360 Nl/h
Water 1000 - 10000 l/h
Air 18000 - 180000 Nl/h
l/h <= 2500l/h
m³/h >= 3000 l/h
l/h <= 40000 Nl/h
m³/h >= 50000 Nl/h
Liquids 1,6%
Gases 2,5%
qG50%
from bottom to top
Materials Measuring tube Borosilicat glass
Connections 1.4571, PVDF, PVC
Float 1.4571, aluminium, PVDF
Float guiding 1.4571
Seals Viton, EPDM, FEP/FFKM
Float Stop PVDF / stainless steel
Protection body 1.4301
Shatter protection Polycarbonat
Ambient conditions Ambient temperature -20…+80 °C (-4…+176°F)
Ambient temperature PVC -20…+80 °C (-3…+176°F)
Storage temperature -20…+60 °C (-4…+140°F)
Climatic category
Weatherproof and/or unheated operation site, class C
according to DIN IEC 654 part 1
Shock resistance / vibration
resistance
The device should be protected against extreme shock and
vibration, either of which could cause damage
Medium Conditions
Pressure Resistance Ranges B1 bis C7 max. 15 bar (at max. 80°C ; 176° F)
Ranges D1 bis D8 max. 10 bar (at max. 80°C ; 212° F)
Ranges E1 bis E5 max. 6 bar (at max. 80°C ; 176° F)
Connections in PVDF max. 10 bar (at max. 20°C ; 68° F)
max. 4 bar (at max. 40°C ; 104° F)
max. 2,5 bar (at max. 50°C ; 122° F)
Connections in PVC max. 10 bar (at max. 20°C ; 68° F)
max. 4 bar (at max. 40°C ; 104° F)
max. 2,5 bar (at max. 50°C ; 122° F)
Media Temperature Float material
st.st. / Aluminium -10° - +150°C (+14° - +176° F)
Float material PVDF -10° - +100°C (+14° - +176° F)
PVC Glue connection -10° - +50°C (+14° - +122° F)
Status liquid or gaseous
Density Liquids <=2,0 kg/l
Gases - / -
Inlet and outlet straight
Pressure Loss
Limit contacts Model Switching type Power
K17A reed contact N/O
K17B reed contact N/C
K33 reed contact SPDT 250 V AC/DC/1,5A/150VA/100W
K33i inductive contact N/C 5-25 V DC
Accuracy class (according to VDE/VDI 3513,
sheet 2
Flow direction
see measuring ranges
Inlet and outlet straight are not required as long as the flow profile is laminar.
On strongly non laminar flow profiles e.g. regulating and shuttoff devices inlet
straight of 250 mm, see also directive VDI/VDE 3513
AC 250 V/ 0,5 A / 10 VA
DC 250 V/0,5 A / 5W
Smallest measuring
range
Largest measuring
range
Dimensions for
measrured variable
Water
Air
covered to 0 ° C and 1,013 bar abs

Heinrichs Messtechnik GmbH
Page 20
Operating manual V31
6.2 Measuring Ranges
6.2.1 Water
Pressure loss
Float 1.4571 c/w
and w/o guiding
Float 1.4571+
magnet
Float 1.4571 -
viscosity stable
Float PVDF
weighted w.
magnet
mbar(psi)
G
B1 3 - 30 - - 1,1 - 11
1/4"
B2 4 - 40 - - 1,5 - 15
3/8"
B3 5 - 50 - - 2 - 20
1/2"
B4 6,5 - 65 - - 2,5 - 25
B5 8 - 80 - - 3,2 - 32
B6 10 - 100 - - 4 - 40
GC1
12,5 - 125 12 - 120 10 - 100 6,5 - 65
1/4" C2
16 - 160 15 - 150 12,5 - 125 9 - 90
3/8" C3
20 - 200 18 - 180 16 - 160 11 - 110
1/2" C4
25 - 250 24 - 240 20 - 200 14 - 140
C5
31,5 - 315 30 - 300 24 - 240 17,5 - 175
C6
40 - 400 36 - 360 30 - 300 22 - 220
C7
50 - 500 48 - 480 36 - 360 25 - 250
GD1
40 - 400 40 - 400 - 32 - 320
3/4" D2
65 - 650 60 - 600 40 - 400 50 - 500
1" D3
80 - 800 75 - 750 50 - 500 60 - 600
1 1/4" D4
100 - 1000 95 - 950 60 - 600 75 - 750
D5
120 - 1200 120 - 1200 75 - 750 100 - 1000
D6
160 - 1600 150 - 1500 100 - 1000 125 - 1250
D7
200 - 2000 180 - 1800 120 - 1200 160 - 1600
D8
250 - 2500 240 - 2400 140 - 1400 200 - 2000
D9
300 - 3000 280 - 2800 180 - 1800 240 - 2400
GE1
400 - 4000 380 - 3800 250 - 2500 320 - 3200
1 1/4" E2
500 - 5000 480 - 4800 300 - 3000 380 - 3800
1 1/2" E3
650 - 6500 640 - 6400 400 - 4000 500 - 5000
2" E4
800 - 8000 750 - 7500 450 - 4500 640 - 6400
E5
1000 - 10000 950 - 9500 550 - 5500 750 - 7500
Standard ranges for liquids - l/h - (p=1kg/l(62,43 lb/cu.ft), viskosity 1 mPas(1cp))
(turndown ratio 1:10)
20 (0,290)
40 (0,580)
33 (0,480)
24 (0,350)
10 (0,145)
S 07
19 (0,280)
25 (0,360)
Ranges acc. Range
code
V31 model
S 05
S 06
Connection Sizes
Standard
S 04
6.2.2 Air
Pressure loss
Float Aluminum
c/w and w/o
guiding
Float Aluminum +
magnet
Float PVDF
Float PVDF
weighted w.
magnet
mbar(psi)
G
B1 5 - 500 - 36 - 360 -
1/4"
B2 65 - 650 - 50 - 500 -
3/8"
B3 80 - 800 - 65 - 650 -
1/2"
B4 110 - 1100 - 80 - 800 -
B5 140 - 1400 - 100 - 1000 -
B6 160 - 1600 - 125 - 1250 -
GC1
200 - 2000 250 - 2500 150 - 1500 200 - 2000
1/4"
C2 300 - 3000 320 - 3200 200 - 2000 300 - 3000
3/8"
C3 360 - 3600 400 - 4000 250 - 2500 360 - 3600
1/2" C4 400 - 4000 500 - 5000 300 - 3000 450 - 4500
C5 500 - 5000 640 - 6400 360 - 3600 600 - 6000
C6 640 - 6400 800 - 8000 500 - 5000 700 - 7000
C7 800 - 8000 1000 - 10000 550 - 5500 950 - 9500
GD1
750 - 7500 850 - 8500 520 - 5200 750 - 7500
3/4"
D2 1000 - 10000 1200 - 12000 800 - 8000 1000 - 10000
1" D3 1300 - 13000 1500 - 15000 900 - 9000 1300 - 13000
1 1/4"
D4 1600 - 16000 2000 - 20000 1200 - 12000 1600 - 16000
D5 2000 - 20000 2400 - 24000 1500 - 15000 2000 - 20000
D6 2800 - 28000 3200 - 32000 2000 - 20000 2800 - 28000
D7 3600 - 36000 4000 - 40000 2500 - 25000 3600 - 36000
D8 4000 - 40000 5000 - 50000 3000 - 30000 4000 - 40000
D9 5000 - 50000 6000 - 60000 3600 - 36000 5000 - 50000
GE1
6400 - 64000 7500 - 75000 5000 - 50000 6400 - 64000
1 1/4"
E2 8000 - 80000 10000 - 100000 6500 - 65000 8000 - 80000
1 1/2"
E3 10000 - 100000 12500 - 125000 8000 - 80000 10000 - 100000
2" E4 14000 - 140000 15000 - 150000 10000 - 100000 14000 - 140000
E5 16000 - 160000 18000 - 180000 12500 - 125000 16000 - 160000
S 06
33 (0,480)
24 (0,350)
19 (0,280)
S 07
25 (0,360)
Standard ranges for air - Nl/h - (Pabs =1,013 bar(14,69psi) at T= 20°C(68° F),
p=1,293kg/m³, V=0,0181 mPas) (Turndown ratio 1:10)
40 (0,580)
V31 model
S 05
Ranges acc. Range
code
Connection Sizes
Standard
S 04
4 (0,058)