Kobold Heinrichs K09 User manual

Heinrichs Messtechnik GmbH
Operating Manual K09
January 2021
Variable-Area Flowmeter
K09
Operating Instructions
Please read the instructions carefully and store them in a safe place

Heinrichs Messtechnik GmbH
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Operating Manual K09
Contents
1IDENTIFICATION.............................................................................................................................................4
2APPLICATIONS ...............................................................................................................................................5
2.1 K09 ...........................................................................................................................................................5
2.2 K09-..V / N differential pressure regulator ..........................................................................................5
3OPERATIONAL MODE AND SYSTEM DESIGN K09 .......................................................................................6
3.1 K09 system design...................................................................................................................................6
3.2 Measuring principle for K09- V / N ........................................................................................................6
3.3 K09-..V / N system design ......................................................................................................................6
4INPUT..............................................................................................................................................................7
4.1 Measured variable: ..................................................................................................................................7
4.2 Measuring ranges: ...................................................................................................................................7
5ELECTRICAL OUTPUT (OPTION) ....................................................................................................................8
5.1 Add-on limit switches Type RC 10/15-14-XX, Manufacturer Pepperl & Fuchs.................................8
5.2 Add-on limit switches Type N7R**A, Manufacturer ifm electronic ....................................................8
6MEASURING ACCURACY................................................................................................................................9
6.1 Reference conditions:..............................................................................................................................9
6.2 Measured error.........................................................................................................................................9
6.3 Repeatability ............................................................................................................................................9
6.4 Influence of ambient temperature .........................................................................................................9
6.5 Influence of fluid temperature ...............................................................................................................9
7CONDITIONS OF USE .................................................................................................................................. 10
7.1 Safe operation ....................................................................................................................................... 10
7.1.1 General conditions for safe operation .............................................................................................................10
7.1.2 Requirements for installation in all environments ......................................................................................10
7.1.3 Requirements for installation dust environments ......................................................................................11
7.1.4 Mounting and commissioning............................................................................................................................11
7.2 Ambient conditions............................................................................................................................... 11
7.2.1 Ambient temperature ranges.............................................................................................................................11
7.2.2 Storage temperature ............................................................................................................................................11
7.2.3 Climatic category....................................................................................................................................................11
7.2.4 Degree of protection.............................................................................................................................................11
7.2.5 Shock resistance/vibration resistance ............................................................................................................11
7.2.6 Electromagnetic compatibility ...........................................................................................................................12
7.3 Fluid conditions..................................................................................................................................... 12
7.3.1 Fluid temperature ranges....................................................................................................................................12
7.3.2 Fluid pressure limit................................................................................................................................................12
7.3.3 Inlet and outlet sections ......................................................................................................................................12
7.3.4 Physical state..........................................................................................................................................................12
7.3.5 Pressure for gas measurement.........................................................................................................................12
7.3.6 Pressure loss...........................................................................................................................................................12

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Operating Manual K09
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8CONSTRUCTION DETAILS ........................................................................................................................... 13
8.1 Design/dimensions K09 ....................................................................................................................... 13
8.2 Design / Dimensions / Commissioning V / N (option diff. pressure regulator) .............................. 13
8.2.1 Dimension drawing K09-N as regulator c/w constant outlet pressure................................................14
8.2.2 Dimension drawing K09-V as regulator c/w constant inlet pressure ...................................................14
8.3 Weight:................................................................................................................................................... 15
8.4 Materials:............................................................................................................................................... 15
8.5 Process connection:.............................................................................................................................. 15
9ELECTRICAL CONNECTION FOR LIMIT SWITCH (OPTION) ....................................................................... 16
10 INDICATOR UNIT ......................................................................................................................................... 16
11 USE IN HAZARDOUS AREAS....................................................................................................................... 17
11.1 Atmospheric Conditions ....................................................................................................................... 17
11.2 Electrostatic charge of non-conductive parts .................................................................................... 17
11.2.1 Grounding.................................................................................................................................................................17
11.3 Mechanical strength ............................................................................................................................. 18
11.4 Without electrical equipment .............................................................................................................. 18
11.5 With limit switch................................................................................................................................... 18
12 CE MARKING................................................................................................................................................ 19
13 AVAILABLE ACCESSORIES .......................................................................................................................... 19
14 ORDER INFORMATION ............................................................................................................................... 19
15 STANDARDS AND DIRECTIVES .................................................................................................................. 19
16 SAFETY INSTRUCTIONS.............................................................................................................................. 20
16.1 Intended use.......................................................................................................................................... 20
16.2 Installation, commissioning and operating personnel ...................................................................... 20
17 PACKAGING, STORAGE AND SHIPMENT ................................................................................................... 20
18 MAINTENANCE............................................................................................................................................ 21
18.1 Replacing the measuring cone............................................................................................................. 21
18.1.1 Removal:...................................................................................................................................................................21
18.1.2 Installation: ..............................................................................................................................................................21
18.1.3 Depiction of the dis- and reassembly..............................................................................................................22
19 RETURNING DEVICES FOR REPAIR AND SERVICE ................................................................................... 23
20 DECONTAMINATION CERTIFICATE FOR DEVICE CLEANING.................................................................... 24
21 MODEL CODE............................................................................................................................................... 25
22 DECLARATION OF CONFORMITY ............................................................................................................... 26

Heinrichs Messtechnik GmbH
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Operating Manual K09
1Identification
Manufacturer:
Heinrichs Messtechnik GmbH
Robert-Perthel-Str. 9 
D-50739 Cologne
Germany
Phone: [phone] - 0
Fax: [phone] - 178
Internet: http://www.heinrichs.eu
Email: [email protected]
Product type:
Miniature flow meter based on the variable area flow meter principle.
Product designation:
K09
Mounting length 90 mm.
File name:
K09_BA_21.01_EN.DOC
Version No. /
Release date:
21.01
18 January 2021

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Operating Manual K09
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2Applications
2.1 K09
The flow meter is suitable for the measurement of the flow of liquid and gaseous products in pipes. It displays
the current flow in volume or mass per unit time.
Applications:
Measuring the flow of liquid and gaseous products in pipes as well as dosing, superimposing, monitoring,
regulating and the controlling of them.
2.2 K09-..V / N differential pressure regulator
The flow meter can be used for stabilizing a constant flow of liquid and gaseous products in pipes. The flow is
kept constant regardless of pressure changes during product inflow for type K09-.N or of a pressure change
during product outflow for type K09-.V.
Applications: Constant dosing, level measurement in open and closed vessels, N2superposition of combustible
media
Caution: The devices should be used with the greatest possible caution when measuring potentially hazardous
liquids and (especially) gases. Precautionary measures must be taken to protect personnel and equipment from
any potential danger or damage resulting from glass-tube breakage. The plant operator carries full responsible
for the use of the devices.
Where possible, we recommend the use of full metal devices such as type KDS.

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Operating Manual K09
3Operational mode and system design K09
Float principle:
The product flows vertically through the meter from the bottom to the top. The height of the float in the
measuring tube is a measure of the flow quantity.
The float is in equilibrium between the buoyant force of the flowing medium and the counteracting force of
gravity on the float.
The measured value is indicated on the measuring-tube scale with the upper edge or the indicator edge of the
float (ball).
3.1 K09 system design
The meter consists of a conical measuring tube made of glass containing a vertically free-moving float The
height of the float in the measuring tube reproduces the calibrated flow quantities on the measuring tube.
3.2 Measuring principle for K09- V / N
Differential pressure regulator:
The diaphragm of the controller is in a state of equilibrium when the pressure conditions are the same on both
sides. The pressure on the inlet side is determined by the pressure of the product; the pressure on the outlet
side is determined by the pressure drop of the setting valve of the flow meter.
If either the inlet or outlet pressure changes, the change in pressure is compensated by the built-in diaphragm
valve - thus maintaining a constant set flow rate.
Important: The regulator can only regulate inlet or outlet pressure fluctuations. Steady pressure conditions
must prevail on each side of the regulator.
3.3 K09-..V / N system design
The unit consists of a K09 variable-area flow meter, equipped with a diaphragm differential pressure flow
regulator. The variable-area flow meter consists of a device fitting with an integrated measuring tube made of
glass that contains a vertically movable float and the valve for setting the flow rate.
The differential pressure flow controller is made of stainless steel and consists of a diaphragm made of Viton or
PTFE and a compensating valve made of stainless steel.
For gaseous products, there are two versions available:
K09-...V for a constant inlet pressure and a variable outlet pressure
K09-...N for a constant outlet pressure and a variable inlet pressure
For liquids, both versions can be used; however, the K09-...V version should be favoured.

Heinrichs Messtechnik GmbH
Operating Manual K09
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4Input
4.1 Measured variable:
Volume flow
4.2 Measuring ranges:
(lower-range and upper-range values)
Measuring span water 20 °C:
Smallest measuring range: 0.02-0.25 l/h water
Largest measuring range: 10-100 l/h water
Measuring span air 20 °C, 1.013 bar abs.
Smallest measuring range: 2-20 Nl/h air
Largest measuring range: 300-3000 Nl/h air
Measuring /regulating range for K09-..V / N
Span: 10-100 %
Smallest measuring/regulating range
0.02-0.25 l/h water
2-20 Nl/h air
Largest measuring/ regulating range
10-100 l/h water
300-3000 Nl/h air
Measuring range table
All measurement range values with fully open valve
* Limited adjustment range of the limit-switch / limit-switch can only be adjusted as min. contact.
Measuring ranges water 20 °C
Measuring ranges air 1.013 bar abs., 20 °C
Float SS 1.4401 (316L) / glass
Float SS 1.4401 (316L) / glass
Range
N°
Water
l/h
Float
material
Valve
seat ø
(mm)
Press.
loss
(mbar)
Range
N°
air
l/h
Float
material
Valve
seat ø
(mm)
Press.
loss
(mbar)
91
0,02-0,25
glass
2.8
2
88
2-20
glass
2.8
1
92
0,08-0,7
glass
2.8
3
89
4-40
glass
2.8
2
79
0,1-1
1.4401
2.8
2
70
5-50
1.4401
2.8
1
80
0,25-2,5
1.4401
2.8
3
71
10-100
1.4401
2.8
2
81
1,0-10
1.4401
2.8
3
90
12-120
glass
2.8
2
82
1,5-16
1.4401
2.8
5
72
25-250
1.4401
2.8
2
83
2,5-25
1.4401
2.8
5
73
30-350
1.4401
2.8
2
84
4-40
1.4401
2.8
5
74
50-450
1.4401
2.8
3
85
5-65
1.4401
2.8
5
75
60-800
1.4401
2.8
3
86
6-63
1.4401
2.8
6
76
120-1200
1.4401
2.8
3
87
10-100
1.4401
2.8
6
77
200-2000
1.4401
2.8
3
78
300-3000
1.4401
2.8
3

Heinrichs Messtechnik GmbH
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Operating Manual K09
5Electrical output (option)
1 inductive limit switch
Mono- or bistable
5.1 Add-on limit switches Type RC 10/15-14-XX, Manufacturer Pepperl & Fuchs
Monostable Type RC 10/15-14-N0
Bistable Type RC 10/15-14-N3
Ex-Marking PTB 99 ATEX 2128 X,
II 2G Ex ia IIC T6 Gb
5.2 Add-on limit switches Type N7R**A, Manufacturer ifm electronic
Monostable Type N7R28A (I7R2010-N - Inside diameter 10mm)
Type N7R30A (I7R2015-N - Inside diameter 15mm)
Bistable Type N7R29A (I7R2010-NL - Inside diameter 10mm)
Type N7R31A (I7R2015-NL - Inside diameter 15mm)
Ex-Marking BVS 08 ATEX E026 / IECEx BVS 09.0016
II 1G Ex ia IIC T6 Ga
II 1D Ex ia IIIC T85°C Da
When installing electrical equipment in hazardous areas please pay attention to the conditions specified in
the applicable approval certificate.

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Operating Manual K09
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6Measuring accuracy
6.1 Reference conditions:
Water 20 °C (air 20 °C; 1.013 bar abs.)
6.2 Measured error
(Liquid/Gas): 3 % qG=50 % acc. VDE/VDI 3513 page 2
V / N (optional differencial pressure regulator):
Measurement error / regulator deviation: 3.5 % / 5 % of full-scale within 10-100 % of range
6.3 Repeatability
(Liquid/Gas) 1.0 % full-scale,
V / N (optional differential pressure regulator):
Measurement / regulator deviation: 1.5 % / 2.5 % of full-scale within 10-100 % of range
6.4 Influence of ambient temperature
none
6.5 Influence of fluid temperature
Deviations in fluid temperature from that of the temperature observed during calibration can result in a
proportional display fault because of the corresponding change in density.
Temperature-related changes in viscosity will cause a non-linear display fault.

Heinrichs Messtechnik GmbH
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Operating Manual K09
7Conditions of use
The VDI/VDE guidelines must be observed.
The devices can be used for:
-liquid products that are sufficiently free-flowing, are free of solids, do not bond or do not tend
to settle.
-gases with linear flow behaviour and an adequate inlet pressure.
V/N(optional differential pressure regulator)
The minimum differential inlet and outlet pressures must amount to 350 mbar.
Please refer to the instructions for potentially hazardous products in Section 2.2.
7.1 Safe operation
7.1.1 General conditions for safe operation
a) If the conditions described in this document are not adhered to, or if there is any inappropriate
interference with the equipment, all the manufactures warranties shall be considered void.
b) Conditions described in this manual, as well as the permitted operating conditions which have
been defined for the sensor and which are stated on the rating plates must be adhered to.
c) Appropriate measures shall be met to prevent any unintentional or inadmissible damage to the
device.
d) The operator shall ensure that the equipment is only installed in areas which comply with the
approved types of protection and environments.
e) All connected electrical equipment must be suitable for its intended use.
f) The operator shall ensure protection against lightning according to local regulations.
g) The flowmeter is maintenance-free.
7.1.2 Requirements for installation in all environments
a) The installation of the intrinsically safe circuits requires a control drawing (system description), to
be issued by the operator/erector.
b) The equipment is only to be installed and connected in a de-energized state.
c) It is to be insured that intrinsically safe circuits are not laid together with non-intrinsically safe
circuits.
d) Seized screws or adhering joints (e.g. by frost or corrosion) are not to be opened with force in the
presence of a potentially explosive atmosphere.
e) Where substances of explosion group “IIC” or “A” are present and the presence of an Ex-
atmosphere is considered possible, only non-sparking tools shall be used.