Kobold OMG Manual de usuario

Operating Instructions

for

Screw-Volumeter

Model: OMG

OMG

page 2 OMG K04/0922

1. Contents

1.Contents ........................................................................................................ 2

2.Note .............................................................................................................. 3

3.Instrument Inspection .................................................................................... 3

4.Regulation Use ............................................................................................. 4

5.Operating Principle ........................................................................................ 4

6.General Information ...................................................................................... 4

7.Warranty ....................................................................................................... 5

8.Mechanical Connection ................................................................................. 5

9.Electrical Connection .................................................................................... 6

10.Start up ......................................................................................................... 7

11.Dismounting and Mounting ........................................................................... 7

12.Failure ......................................................................................................... 14

13.Maintenance ............................................................................................... 15

14.Technical Information .................................................................................. 15

15.Order Codes ............................................................................................... 17

16.Dimensions and weights ............................................................................. 18

17.Pressure loss diagram ................................................................................ 20

18.Disposal ...................................................................................................... 21

19.Manufacturer's declaration .......................................................................... 22

20.EU Declaration of conformance .................................................................. 23

Manufactured and sold by:

Kobold Messring GmbH

Nordring 22-24

D-65719 Hofheim

Tel.: +49(0)6192-2990

Fax: +49(0)6192-23398

E-Mail: [email protected]

Internet: www.kobold.com

OMG

OMG K04/0922 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 apply-

ing 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.

as per PED 2014/68/EU

In acc. with Article 4 Paragraph 3, "Sound Engineering Practice", of the

PED 2014/68/EU no CE mark.

Diagram 9, Pipe, Group 2 no dangerous fluids

3. Instrument Inspection

All 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:

 Screw-Volumeter model: OMG (incl. pulse generator)

 measuring transducer (only with OMG-../45)

OMG

page 4 OMG K04/0922

4. Regulation Use

Any use of the OMG which exceeds the manufacturers specifications, may invali-

date its warranty. Therefore, any resulting damage is not the responsibility of the

manufacturer. The user assumes all risk for such usage.

5. Operating Principle

The measuring principle of the KOBOLD

screw-volumeter is positive displacement.

The fluid to be measured causes the

measuring spindles M to rotate. With each

rotation an exact volume is given. These

rotations are being transmitted to the display A

by the pole wheel P and pick up I.

At the display the volume can be shown in any

unit of measurement.

6. General Information

 lt is important that any staff concerned with the unit read the operation and

maintenance manual prior to start up of the unit.

 The user is responsible for taking all precautions outlined in this manual

 This screw-volumeter should not be operated outside of the data specifications

given on the type plate. Any deviations require confirmation from the supplier.

 It is not possible to put all the information you may require in the manual.

Should you require any special information, please contact us.

 Depending on the operating conditions, wear, corrosion or age of the unit, its

specified attributes may be affected. It is therefore essential that the unit is

periodically maintained. The user must replace all parts which would not

guarantee a longer operating life with trouble-free operation. If the unit

operates unusually or damage is observed, it is not allowed to continue

operation.

 Installations which could lead to personal injury and/or material failure should

be equipped with an alarm system and/or bypass. This system should be

checked regularly.

OMG

OMG K04/0922 page 5

7. Warranty

The warranty is according to our terms of delivery. Repairs during the guarantee

period must be carried out only by individuals authorised by us and in accordance

with our agreement and instructions.

8. Mechanical Connection

Mounting position: any

Flow direction: flow direction: both directions are possible, preferable flow D

according to the identification plate.

Minimum pressure: on the outlet of the volumeter the pressure should be higher

than 0,1 bar. In no case the medium may run out free of the

volumeter

Unclean medium: filtration with max. 0,3 - 0,5 mm mesh width is requi

Foreign substance: the pipe system must be free from welding beads, scabs a.

s.o., as they can block the volumete

Over pressure valve: a blocked volumeter stops the complete flow of the medium,

therefor depending the application, an overpressure valve is

required.

Fastening: without tensions to prevent distortion of the volumeter pipe

thread connection.

Pipe thread connection: the thread length of the pipe may not be longer than the thread

length of the volumeter (reduction of the flow area resp.

damage of internal parts of flowmeter)

Manometer connections: should be approachable

thread: R 1/4")

Storing: incorrect storing can cause corrosion even seizing

Attention: When the volumeter or installations are damaged, medium

could flow out. To prevent consequential damage an appropriate alarm

device should be installed.

OMG

page 6 OMG K04/0922

9. Electrical Connection

The dry sleeve is mounted, adjusted and tested with the pick up inside as a whole

unit, by KOBOLD.

The pick-up insert, including milled nut and spring, are screwed into the dry

sleeve by the customer (see included data sheet).

Caution: The dry sleeve must be free of foreign substance. The

spring must be able to press the pick-up insert flush with the

frontside of the dry sleeve.

The free cable ends will be connected to a display unit according connection dia-

gram and technical data on the included data sheet.

Caution: The complete sensor unit (sensor, measuring transducer

and cable) should not be located in an area of high intensity

electromagnetic field, as may come from high voltage

transmissions, electric motors, frequency converters etc,: this

could cause measuring errors or even destruction of the sensor

system.

Even though the pipe-system is filled the pick-up insert of

the pick-up can be changed without regulating a new

distance to the pole wheel.

Exchange pick-up insert E by opening milled nut R.

Caution: Dry sleeve G must not turn!

OM-…/44

OM-…/45 OM-…/43

Further details about the pulse generators can be found in the additional

instructions: "Operating instructions for pulse generators for the OM series...

Type: /43../44../45"

OM-../43

OM-../45

OM-../44

OMG

OMG K04/0922 page 7

Fig.1

10. Start up

Technical data on the identification plate and on the attached leaflets must be

taken into consideration.

Venting: The system must be free of air (affects the accuracy)

11. Dismounting and Mounting

OMG 15

This work should be done by competent personnel only. This

instruction should be used as a support for this activity. If spindle set,

measuring casing or bearing will be replaced, volumeter must be

recalibrated!

Dismounting:

 do not turn sensor sleeve

 if the red sealing point is damaged, the warranty for the flowmeter

expires

 Remove volumeter from installation

 Remove flange cover (Fig.1)

 Remove bearing cover (Fig.2)

 Press out spindle set (with rolling bearings, distance sleeve and

spacers) from measuring casing (Fig.3)

 change of bearings:

Remove pressed-on pole wheel from measuring spindle with

detaching device.

Remove circlips and spacers

Remove rolling bearings

 Remove o-rings

 Clean all parts carefully, do not scratch sealing surfaces!

Mounting

 mount o-rings

 change of bearings:

press rolling bearings on measuring spindle

 press on pole wheel

 insert measuring spindle set into measuring case (Fig.3)

 press distance sleeve into measuring case

 mount spacers (Fig.3)

 mount bearing cover (Fig.2)

 mount flange cover (Fig.1)

 tighten screws crosswise

 install volumeter (see electrical connection)

Fig.2

Fig.3

OMG

page 8 OMG K04/0922

Fig.1

OMG - 20 / 25

This work should be done by competent personnel only. This

instruction should be used as support for this activity. If spindle set

or measuring casing will be replaced, volumeter must be

recalibrated!

Dismounting:

 do not turn sensor sleeve

 if the red sealing point is damaged, the warranty for the

flowmeter expires

 remove volumeter from installation

 remove end covers. If construction is with flange cover remove it also

(Fig.1)

 press out spindle set (with rolling bearings and distance sleeve)

from measuring casing (Fig.2)

 change of bearings:

Large spindle: loosen the screw, remove wedge-locking plate and

support-device and remove pressed-on pole wheel from

measuring spindle with detaching device

Small spindle: Remove screw, wedge locking plate and support

device.

remove rolling bearings

 remove o-rings

 Clean all parts carefully, do not scratch sealing surfaces!

Mounting:

 mount o-rings

 change of bearings:

 press rolling bearings onto the measuring

spindle

 mount the distance sleeve, the pole wheel,

the support device and the wedge locking

plate with the screw.

 turning moments for the screw:

OMG20: Large spindle 2,9 Nm

Small spindle 1,5 Nm

OMG25: Large spindle 10,0 Nm

Small spindle 6,0 Nm

 mount circlips and spacers (Fig.1)

 press on pole wheel

 insert spindle set into measuring case (Fig.2)

 press distance sleeve into measuring case

 mount end covers. If the construction is with

flange cover, mount these too (Fig.3)

 tighten screws crosswise

 install volumeter

Fig.1

Fig.2

Fig.3

OMG

OMG K04/0922 page 9

OMG - 40 / 50

This work should be done by competent personnel only. This instruction is only

used as support for this activity. If spindle set or measuring casing will be

replaced, volumeter must be recalibrated!

Dismounting:

 do not turn sensor sleeve

 if the red sealing point is damaged, the warranty for the flowmeter expires.

 remove volumeter from installation

 remove end covers (Fig.1).

 remove crown (without pick up) (Fig.2)

 loosen measuring casing and take it off carefully (Fig.3)

 Large spindle: loosen screw, remove wedge locking plate

and support device, remove pressed on pole wheel with detaching

device, remove distance-ring. (Fig.4a)

 remove circlips from crown

 remove spindle set (with rolling bearings) from crown (Fig.4)

 change of bearings:

Small spindle: Loosen screw, remove wedge locking plate

and support device.

remove circlips and spacers (4b)

pull off rolling bearings

 remove o-rings

 Clean all parts carefully, do not scratch sealing surfaces!

Fig.1

Fig.2

Fig.3

Fig.4a

Fig.4

Fig.4b

OMG

page 10 OMG K04/0922

Mounting:

This work should be done by competent personnel only.

This instruction should be used as support for this

activity. If spindle set or measuring casing will be

replaced, volumeter must be recalibrated!

 mount o-rings

 change of bearings:

 mount circlips and spacers (for

boring) on pole wheel side.

 Pay attention to correct position of spacer! (Fig.2)

 turning moment for the screw:

OMG 40: large spindle 25 Nm

small spindle 10 Nm

OMG 50: large spindle 49 Nm

small spindle 25 Nm

 press on rolling bearings

 Caution: mount angular ball bearing in Y-arrangement

 mount circlips and spacers on measuring spindles

 mount spindle set into crown (with pick up) (Fig.3)

 mount circlips on crown

 push up pole wheel and tighten set screw on end face (Fig.4)

 mount measuring casing (Fig.3)

 mount crown (without pick up) (Fig. 5)

 mount flange covers (Fig. 6)

 tighten screws crosswise

 install volumeter

Fig.1

Fig.2

Fig.1a Fig.1b

Fig.3

Fig.4

Fig.5

Fig.6

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