Schmidt KLA Manual de usuario

Schmidt Mess- und Regeltechnik

Fon 0 67 32 - 91 91 20 Fax 0 67 32 - 96 24 42 [email protected]

Installation and Operating Instructions

Flap-Type Flow Meter KLA

Schmidt Mess- und Regeltechnik

Fon 0 67 32 - 91 91 20 Fax 0 67 32 - 96 24 42 [email protected]

Installation and Operating Instructions

Flap-Type Flow Meter KLA

Inhaltsverzeichnis

1. Foreword 3

2.1.

2.2.

2.3.

2.4.

2.5.

2.6.

2.7.

4.1.

4.2. Installation KLA 6

10.2. Technical Data of Limit Switches 11

5..

7.1.

9.1.

10.

10.1.

Safety 3

Symbol and Meaning 3

General Safety Directions and Exemption from Liability 3

Intended Use 3

Special Safety Directions for Glass Devices 3

Information for Operator and Operating Personnel 4

Regulations and Guidelines 4

Notice as Required by the Hazardous Materials

Directive 4

Transport and Storage 4

Installation 4

Mounting Position KLA 4

Start-up 6

Readings in Operation 6

Limit Switches 6

Connection the Limit Switches 7

Maintenance and Cleaning of the Flow Meter 7

Service 7

Disposal 7

Technical Data 8

Dimensions 10

Schmidt Mess- und Regeltechnik

Fon 0 67 32 - 91 91 20 Fax 0 67 32 - 96 24 42 [email protected]

Installation and Operating Instructions

Flap-Type Flow Meter KLA

1. Foreword

These Installation and Operating Instructions are applicable to devices of Series KLA. Please

follow all instructions and information given for installation, operation, inspection and maintenance.

The instructions form a component part of the device, and should be kept in an appropriate place

accessible to the personnel in the vicinity of the location. Where various plant components are

operated together, the operating instructions pertaining to the other devices should also be

observed.

2. Safety

2.1. Symbol and Meaning

!Safety notice

This safety notice can be found at all hints on work safety in these assembly and operating

instructions pointing out hazards for life and limb of persons. Such notices should be strictly

observed.

2.2. General Safety Directions and Exemption from Liability

This document contains basic instructions for the installation, operation, inspection and

maintenance of the flap-type flow meter. Failure to comply with these instructions can lead to

hazardous situations for man and beast and also to damage to property, for which Schmidt Mess-

und Regeltechnik disclaims all liability.

The operator is required to rule out potentially hazardous situations through voltage and released

media energy.

2.3. Intended Use

The KLA Series device is a flap-type VA flow meter for fluids. It is designed for installation in

horizontal or vertical pipe runs. In vertical pipe runs, flow through the device must be from below.

Installation in the pipeline may only be carried out in accordance with these instructions. Select the

version of the flap-type VA flow meter on the basis of the pipe diameter at the installation location of

the device. The limit values for the device are specified in section 10 and must be complied with.

Any modifications or other changes made to the measuring device may be carried out solely by the

manufacturer. Details pertaining to the fluid product and operating conditions are noted on the

scale.

2.4. Special Safety Directions for Glass Devices

!For safety reasons, we recommend placing a protective shield in front of the

measuring device before starting up flow meters fitted with glass panels. The devices

should not be operated where there is risk of pressure surges!

Schmidt Mess- und Regeltechnik

Fon 0 67 32 - 91 91 20 Fax 0 67 32 - 96 24 42 [email protected]

Installation and Operating Instructions

Flap-Type Flow Meter KLA

2.5. Information for Operator and Operating Personnel

Authorized installation, operating, inspection and maintenance personnel should be suitable

qualified for the jobs assigned to them, and should receive appropriate training and instruction. All

persons charged with assembly, mounting, operation, inspection and maintenance duties must

have read and understood the operating instructions. Gaskets in contact with the fluid product must

be replaced after all maintenance and repair work.

2.6. Regulations and Guidelines

In addition to the directions given in these Installation and Operating Instructions, observe the

regulations, guidelines and standards, such as DIN EN, and, for specific applications, the codes of

practice issued by DVGW [gas and water] and VdS [underwriters], or the equivalent national codes,

and applicable national accident prevention regulations.

2.7. Notice as Required by the Hazardous Materials Directive

In accordance with the law concerning handling of waste [critical waste] and the hazardous

materials directive [general duty to protect], we would point out that all flow meters returned to

Schmidt Mess- und Regeltechnik for repair are required to be free from any and all hazardous

substances [alkaline solutions, acids, solvents, etc.].

Make sure that devices are thoroughly rinsed out to neutralize hazardous

substances.

3. Transport and Storage

The KLA device is packed by the factory in packaging appropriate for transportation and storage.

Transport and storage should be carried out solely in the original packaging. Protect the device

against rough handling, impact, jolts, etc.!

4. Installation

Flap-type flow meters are suitable for installation in either vertical or horizontal pipe runs. In

vertical pipe runs, flow must be from bottom to top.

Make sure the pipes are correctly spaced and in true alignment at the installation location for the

flow meter. For connection of the KLA device, fit the open ends of the pipeline at the installation

point with flanges appropriate to the flow meter.

Straight unimpeded pipe runs upstream and downstream of the meter’s installation location

should have a length equal to a minimum of 2 x DN.

4.1. Mounting Position KLA

When the KLA is mounted horizontally with left/right or right/left flow direction, make sure that the

device is installed with the scale facing the front. This position will ensure that the device

functions properly [see Figure 1].

The device cannot function, if it is installed with the scale facing upwards or downwards [see

Figure 2].

Schmidt Mess- und Regeltechnik

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Installation and Operating Instructions

Flap-Type Flow Meter KLA

Figure 1 shows correct installation of the device. The scale faces the front.

Figure 1

Viewingdirection

In Figure 2 the device has been installed incorrectly. The scale faces upwards.

Figure 1

Viewingdirection

Schmidt Mess- und Regeltechnik

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Installation and Operating Instructions

Flap-Type Flow Meter KLA

4.2. Installation KLA

For mounting, provide the connection flanges of the KLA with suitable flat gaskets. The gaskets are

not included with the flow meter.

Before installing, remove the transport lock from inside the device, and fit the open pipe ends with

appropriate connecting flanges. Make sure the pipes are in true alignment and the sealing faces

spaced correctly. Install the device in the direction of flow indicated by the arrow on the scale such

that it is free from stresses. Use gaskets made of rubber, PVC or Teflon.

5. Start-up

The device must have been properly installed before it is started up.

6. Readings in Operation

On the standard device, values are read off at the pointer on the resopal scale.

On the KLA GS version, the flow rate is indicated directly by the flap. At the front and rear, the flow

meter features in each case a pane and hard glass. The flow rate is read off from a scale attached

to the front hard glass pane on a level with the top edge of the KLA flap. Measured values are

correct only when the operating condition at the measuring point [flowing medium, operating

pressure and temperature] corresponds to the operating state data marked on the scale.

7. Limit Switches

The flow meter can be equipped with limit switches with preset switching point to provide local

indication with monitoring function. The switches have a bistable characteristic.

The following devices are equipped with limit switches:

Uncontrolled current and voltage peaks can occur in the case of inductive or capacitive loads, e.g.

from contactors or solenoid valves. Such peaks will also occur, depending on cable geometry,

when cables exceed a certain length. We therefore recommend using an MSR contact protection

relay, which can be additionally supplied. This will increase the contact rating and prevent the

occurrence of inductive and capacitive peaks, thus ensuring long service life of the contacts.

Electrical data and limit values are specified in Section 10.2.

• Test the device connections.

• Setting the flow: pressurize the pipelines by slowing opening the shutoff valves. In the case of

liquids, make sure the pipeline is carefully vented.

• Check the leak-tightness of all components and if necessary retighten threaded joints and

bolted connections.

KLA Standard-IK

KLA Standard-IKS with SJ3,5N / SC3,5-NO-BU

with SB3,5-E2

Schmidt Mess- und Regeltechnik

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Installation and Operating Instructions

Flap-Type Flow Meter KLA

7.1. Connecting the Limit Switches.

• Electrical connection of the device should be carried out in conformity with the

relevant VDE regulations [or equivalent national standards] and in compliance with

the regulations issued by your local power supply utility.

• Disconnect the system from the supply before connection the limit switch.

• Provide a protective circuit for the switches in keeping with their capacity.

• Connect appropriate fuse-elements on the line-side [matched to consumption]-

• Connect the cable using the supplied right-angle plug. The circuit diagram for the

limit switches is given in the technical data, Section 10.2.

8. Maintenance and Cleaning of the Flow Meter

The KLA can be opened from the back. Undo the fastening screws on the rear cover and take

the cover off. Remove any dirt and deposits that may have accumulated in the casing and on

the flap. The shaft of the flap runs on pivot bearings. Should these have too much play, the

device can also be opened from the front. Detach the lock nuts and retighten the bearing

screws. Then retighten the lock nuts. The flap must be positioned so close to the front plate that,

without the seal, it just slightly rubs against this plate. If the seal is then reinserted before final

assembly, the flap will move freely. The pointer must be able to move freely across the resopal

plate. Be sure to replace the cover to close the device tightly.

9. Service

All devices with defects or deficiencies should be sent direct to our repair department. To enable

our customer service facility to deal with complaints and repairs as quickly as possible, you are

kindly requested to coordinate the return of devices with our sales department (info@schmidt-

messtechnik.de).

9.1. Disposal

Please help to protect our environment, and dispose of workpieces in conformity with current

regulations or use them for some other purpose.

Schmidt Mess- und Regeltechnik

Fon 0 67 32 - 91 91 20 Fax 0 67 32 - 96 24 42 [email protected]

Installation and Operating Instructions

Flap-Type Flow Meter KLA

10. Technical Data

Connection to DIN 2501

optionally: ASA 150 lbs

Pressure rating PN 10 [standard] or PN 6 [special version]

Cast steel: PN25

Fitting dimensions DN 25 – 200 / ½“ – 8“

Mounting length See Table

Corrosion protection Epoxy resin paint, traffic blue RAL 5017, stove-enamelled

Rubber lining NR-isoprene quality

Thermostability* standard 100°C

With rubber lining: max. 90°C

Special version: up to max. 250°C

Turndown ration normally 1:10

Measurement uncertainty 5% FS

Viewing window Pressed hard glass

Degree of protection In conformity with IP 54, switches: IP 53

*On no account may the fluid product be allowed to freeze.

Schmidt Mess- und Regeltechnik

Fon 0 67 32 - 91 91 20 Fax 0 67 32 - 96 24 42 [email protected]

Installation and Operating Instructions

Flap-Type Flow Meter KLA

Materials

Type/device Flap Bearings Plate Blind flanges Gasket DN

KLA Standard

15 - 150

Grey cast iron Rg 5 1.4571 1.4571 Grey cast iron/

steel NBR 32 - 150

Welded steel Rg 5 1.4571 1.4571 Steel NBR 200

KLA GS Ring

Grey cast iron 1.4571 1.4571 Glass Steel NBR 15 - 25

Grey cast iron Rg 5 1.4571 Glass Steel NBR 32 - 150

KLA rubber-

lined version Blind flange

Grey cast iron,

rubber-lined 1.4571 1.4571 1.4571 Grey cast iron/

steel, rubber-

lined

Sil-C8200 32 – 150

Grey cast iron,

rubber-lined Hastelloy

C4 Hastelloy

C4 VA-

Teflon Grey cast iron/

steel, rubber-

lined

Sil-C8200 32 – 150

Grey cast iron,

rubber-lined Teflon Hastelloy

C4 VA-

Teflon Grey cast iron/

steel, rubber-

lined

Sil-C8200 80 – 150

Grey cast iron,

rubber-lined Teflon Teflon VA-

Teflon Grey cast iron/

steel, rubber-

lined

Sil-C8200 80 – 150

NBRGrey cast iron 1.4571 1.4571 1.4571 Grey cast iron/

steel

Other gaskets, rubber linings [e.g. with drinking water approval] and coatings with Teflon [HALAR]

or cast grades such as steel, SG iron, bronze, VA or Hastelloy on request.

Schmidt Mess- und Regeltechnik

Fon 0 67 32 - 91 91 20 Fax 0 67 32 - 96 24 42 [email protected]

Installation and Operating Instructions

Flap-Type Flow Meter KLA

10.1 Dimensions

All dimentions in mm

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