Kobold OM 43 Series User manual

Operating Instructions
for
Pulse Generator
for series OM…
Model:
OM…/43
OM…/44
OM…/45

OMx Sensor
page 2 OMx Sensor K01/1122
We don’t accept warranty and liability claims neither upon this publication nor in
case of improper treatment of the described products.
The document may contain technical inaccuracies and typographical errors. The
content will be revised on a regular basis. These changes will be implemented in
later versions. The described products can be improved and changed at any time
without prior notice.
© Copyright
All rights reserved.
1. Contents
1.Contents ........................................................................................................ 2
2.Note .............................................................................................................. 3
3.Instrument Inspection .................................................................................... 4
4.Regulation Use ............................................................................................. 4
5.Operating Principle ........................................................................................ 4
6.Safety Information ......................................................................................... 5
7.Electrical Connection .................................................................................... 6
8.Assembly and Disassembly .......................................................................... 7
9.Possible faults ............................................................................................. 13
10.Technical Information .................................................................................. 14
11.Dimensions ................................................................................................. 15
12.Disposal ...................................................................................................... 16
13.EU Declaration of Conformance ................................................................. 17
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
Internet: www.kobold.com

OMx Sensor
OMx Sensor K01/1122 page 3
2. Note
Please read these operating instructions before unpacking and putting the unit into
operation. Follow the instructions precisely as described herein.
The instruction manuals on our website www.kobold.com are always for currently
manufactured version of our products. Due to technical changes, the instruction
manuals available online may not always correspond to the product version you
have purchased. If you need an instruction manual that corresponds to the
purchased product version, you can request it from us free of charge by email
([email protected]) in PDF format, specifying the relevant invoice number and
serial number. If you wish, the operating instructions can also be sent to you by
post in paper form against an applicable postage fee.
The devices are only to be used, maintained and serviced by persons familiar with
these operating instructions and in accordance with local regulations applying to
Health & Safety and prevention of accidents.
When used in machines, the measuring unit should be used only when the
machines fulfil the EC-machine guidelines.

OMx Sensor
page 4 OMx Sensor K01/1122
3. Instrument Inspection
Instruments are inspected before shipping and sent out in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of the
delivery packaging. In case of damage, please inform your parcel service /
forwarding agent immediately, since they are responsible for damages during
transit.
Scope of delivery:
The standard delivery includes:
 Pulse generator model: OM…/43/44/45
4. Regulation Use
Any use of the device, which exceeds the manufacturer’s specification, may
invalidate its warranty. Therefore, any resulting damage is not the responsibility of
the manufacturer. The user assumes all risk for such usage.
Only use the Kobold pulse generator within the operating limits specified in the
"Technical Data" chapter. Deviating operating data can lead to damage. If in doubt,
consult the manufacturer.
5. Operating Principle
The rotor of the screw-type volumetric flow meter rotates at a precisely defined
distance in front of the pulse generator. The pulse generator generates a pulse for
every pole that moves past it.
The screw-type volumetric flow meter is checked and delivered with a built-in dry
sleeve. The transmitter insert for the pulse generator can be replaced online in a
full line, without having to re-adjust the clearance to the rotor.

OMx Sensor
OMx Sensor K01/1122 page 5
6. Safety Information
The following safety instructions must be observed:
 Implement all the supply lines without faults.
 The pick up system (puck up, transducer and lines) may not be located in
the area of strong, high-frequency electromagnetic fields, such as those
emitted e.g. from power lines, electric motors, frequency converters, etc.
This can result in erroneous measurements of the pick up system.
 In case of systems with an increased potential of danger to humans and/or
machines the failure of a pick up may not lead to injuries or damage to
property.
• Always equip systems with an increased potential of danger with
alarm equipment.
• Maintain and check the protective/alarm equipment regularly.
 The pumped liquids can be dangerous (e.g. hot, dangerous to health,
poisonous, combustible). Observe the safety conditions for handling
dangerous materials.
 Pumped liquids can be subject to pressure and can cause damage and/or
personal injury should leaks occur.
 Depending on operating conditions, the service life of the pick ups is limited
due to vibrations, temperature influences or deterioration. The operator-
owner is responsible for regular inspection.
• All parts which jeopardize safe operation must be replaced regularly.
• Abnormal operating mode or visible damage prohibits further use.

OMx Sensor
page 6 OMx Sensor K01/1122
7. Electrical Connection
OM…/43:
OM…/44:
OM /45:

OMx Sensor
OMx Sensor K01/1122 page 7
8. Assembly and Disassembly
The pick up system (puck up, transducer and lines) may not be located in the area
of strong, high-frequency electromagnetic fields. This can result in erroneous
measurements of the pick up system.
 The connecting lines of the pick up connections are to be shielded and laid
separately from the supply lines.
 Ensure that the supply voltage is correct.
Installing the pick up
By default, flowmeters are supplied with a premounted pick up or premounted dry
sleeve respectively.
Be sure to observe the following instruction:
When replacing the pick up insert it is not necessary to change the position of the
dry sleeve. Damage to the red sealing point shows that the dry sleeve has been
repositioned. In this case the guarantee for the flowmeter becomes null and void.
Replacing OM…/43
Removing OM…/43
1. Loosen the knurled nut of the pick up plug 493 and pull out the plug.
2. Loosen the hexagon nut 626.3, spacer 626.2 and sleeve 626.4.
3. Pull out the pick up insert 624.1 with spring 624.2.
4. Turn out the pressure housing 626.1.

OMx Sensor
page 8 OMx Sensor K01/1122
Installing and connecting OM…/43
Plug assignment
Terminal diagram
Installation position
1. Clean the pick up hole. At flowmeters of the OMG and OMH series check
the inserted O-ring.
2. Screw the pressure housing 626.1 into the pick up hole up to a distance of
0.5 mm (43D) respectively 1.0 mm (46D) from the outer diameter of the pole
wheel. (One rotation corresponds to 1 mm.)
3. Lock with the spacer 626.2 and hexagon nut 626.3.
4. Slide the pick up insert 624.1 and spring 624.2 into the pressure housing
626.1. Fasten with sleeve 626.4.
5. Connect the pick up plug 493. Observe the terminal diagram.

OMx Sensor
OMx Sensor K01/1122 page 9
Removing OM…/44
1. Separate the pick up cable from the supply voltage.
2. Loosen threaded cover 624.3. Pull the pick up insert 624.1 and spring 624.2
out of the pressure housing 626.1.
3. Loosen the hexagon nut 626.3 and spacer 626.2.
4. Turn out the pressure housing 626.1 with indexing sleeve 626.5.
Installing and connecting OM…/44
Position flowmeter at pick up installation
Positioning pin latching in

OMx Sensor
page 10 OMx Sensor K01/1122
Terminal diagram
Installation position
Replacing OM…/44
1. Clean the pick up hole. At flowmeters of the OMG and OMH series check
the inserted O-ring.
2. Screw the pressure housing 626.1 into the pick up hole up to a distance of
0.25 mm from the outer diameter of the pole wheel. (One rotation
corresponds to 1 mm.)
3. Lock with the spacer 626.2 and hexagon nut 626.3.
4. Position the flowmeter see Fig. Position flowmeter at pick up installation
5. Press the indexing sleeve 626.5 while making sure that the position is
correct, see Fig. Position flowmeter at pick up installation
The correct position of the groove is rotated by 90° to the left in the flow
direction, max. angle error+/- 10°.
6. Slide in the pick up insert 624.1 and spring 624.2 while ensuring that the
sleeve is clean and the position of the positioning pin A is correct. This must
be latched in the groove of the indexing sleeve 626.5, see Fig. Positioning
pin latching in. Screw tight the threaded cover 624.3. Connect the pick up.
Observe the terminal diagram, see Fig. Terminal diagram

OMx Sensor
OMx Sensor K01/1122 page 11
Replacing OM…/45
Removing OM…/45
1. Loosen the plug 624.6 from the amplifier 627.1.
2. Loosen the hexagon nut 626.3, spacer 626.2 and threaded cover 624.5.
3. Pull out the pick up insert 624.1 with spring 624.2.
4. Turn out the pressure housing 626.1.
Installing and connecting OM…/45
Terminal diagram

OMx Sensor
page 12 OMx Sensor K01/1122
Installation position OM…/45
1. Clean the pick up hole. At flowmeters of the OMG and OMH series check
the inserted O-ring.
2. Screw the pressure housing 626.1 into the pick up hole up to a distance of
0.25 mm from the outer diameter of the pole wheel. (One rotation
corresponds to 1 mm.)
3. Lock with the spacer 626.2 and hexagon nut 626.3.
4. Slide the pick up insert 624.1 and spring 624.2 into the pressure housing
626.1. Fasten with threaded cover 624.5.
5. Fasten the plug 624.6 to the amplifier 627.1.
6. Connect the amplifier. Observe the terminal diagram, see Fig. Terminal
diagram.

OMx Sensor
OMx Sensor K01/1122 page 13
9. Possible faults
Faults can have different causes. The following tables list the symptoms of a fault,
the possible causes and measures for troubleshooting.
Troubleshooting
No. Cause Remedy
1 Pick up/pick up insert defective ► Screw out the pick up/pick up insert and check: A
functioning pick up/pick up insert sends a pulse
when approaching a ferromagnetic part. If it exists,
this can be checked with LED.
44: The pick up insert must be brought close to a
magnet to test it.
► Replace the pick up insert.
Pick up mounted incorrectly ► Check the pick up insert mounting, see "Installation,
removal and connection", chapter 8.
3 Incorrect connection ► Check connections.
4 Flowmeter does not work ► Check and actuate the flowmeter, see the
corresponding operating instructions of the
flowmeter.
5 Incorrect power supply ► Adjust electronic device, see the
corresponding operating instructions of the
6 Corroded contacts ► Check and clean contacts.
7 Interference from outside ► Lay cables accordingly, see "Safety instructions on
installation, removal and connection", chapter 8.
8 No flow ► Check the pipe system.

OMx Sensor
page 14 OMx Sensor K01/1122
10. Technical Information
Model System Voltage tmax pmax
face
Material dry
sleeve
Electrical
connection Protection
43 inductive
PNP 10…30 VDC -20…+100 °C (-25…+90 °C)1) 250 bar arcap/
ceramic
right-angle plug
with LED and
3 m cable
IP 65
44 Hall-effect
PNP 10…30 VDC -40…+150 °C 420 bar arcap 3 m PTFE cable IP 67
45 Magnetic
PNP 10…30 VDC -40…+250 °C (0…+50 °C)2) 420 bar arcap
incl. transmitter/
cable box with
1 m PTFE cable
IP 65
1) Connector
2) Transmitter

OMx Sensor
OMx Sensor K01/1122 page 15
11. Dimensions
OM…/43
OM…/44
OM…/45

OMx Sensor
page 16 OMx Sensor K01/1122
12. Disposal
Note!
 Avoid environmental damage caused by media-contaminated parts
 Dispose of the device and packaging in an environmentally friendly manner
 Comply with applicable national and international disposal regulations and
environmental regulations.
Batteries
Batteries containing pollutants are marked with a sign consisting of a crossed-out
garbage can and the chemical symbol (Cd, Hg, Li or Pb) of the heavy metal that
is decisive for the classification as containing pollutants:
Cd1 Hg2 Pb3 Li4
1. „Cd" stands for cadmium
2. „Hg" stands for mercury
3. „Pb" stands for lead
4. „Li" stands for lithium
Electrical and electronic equipment

OMx Sensor
OMx Sensor K01/1122 page 17
13. EU Declaration of Conformance
We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole
responsibility that the product:
Sensor Model: OM.../43/44/45
to which this declaration relates is in conformity with the standards noted below:
EN IEC 63000:2018 Technical documentation for the assessment of electrical
and electronic products with respect to the restriction of hazardous substances
Also, the following EC guidelines are fulfilled:
2011/65/EU RoHS (category 9)
2015/863/EU Delegated Directive (RoHS III)
Additional for pulse generator OM…/43:
The product is in conformity with the standards noted below:
EN 55011:2016+A1:2017, EN 55011:2016/A11:2020 (Gruppe 1, Klasse B)
Industrial, scientific and medical equipment - Radio-frequency disturbance
characteristics - Limits and methods of measurement
EN 60947-5-2:2007+A1:2012, Abs. 8.6 Low-voltage switchgear and
controlgear - Part 5-2: Control circuit devices and switching elements - Proximity
switches
Also, the following EC guidelines are fulfilled:
2014/30/EU EMC Directive
Additional for pulse generator OM…/44:
The product is in conformity with the standards noted below:
EN 61326-1:2013 Electrical equipment for measurement, control and
laboratory use - EMC requirements - Part 1: General requirements
Also, the following EC guidelines are fulfilled:
2014/30/EU EMC Directive

OMx Sensor
page 18 OMx Sensor K01/1122
Additional for pulse generator OM…/45:
The product is in conformity with the standards noted below:
EN 61000-6-2:2005/AC:2005 Electromagnetic compatibility (EMC) - Part 6-
2: Generic standards - Immunity for industrial environments
EN 61000-6-4:2007/A1:2011 Electromagnetic compatibility (EMC) - Part 6-
4: Generic standards - Emission standard for industrial environments
Also, the following EC guidelines are fulfilled:
2014/30/EU EMC Directive
Hofheim, 29 Nov. 2022
H. Volz M. Wenzel
General Manager Proxy Holder