KROHNE DAFlap-type User Manual

7025282200 www.krohne.com

KROHNE 11/2007

Installation and

Operating Instructions

SDA

Flap-type flowmeter

for liquid measurements

Note In case of instruments which are explosion prote please observe the supplementary installation and operating instructions:

SDA/... Kat. II2G with electr. internals Id. Nr. 702529##00

Variable area flowmeters

Vortex flowmeters

Flow controllers

Electromagnetic flowmeters

Ultrasonic flowmeters

Mass flowmeters

Level measuring instruments

Communications technology

Engineering systems & solutions

Switches, counters, displays and recorders

Heat metering

Pressure and temperature

Table of Contents

Product liability and warranty ...............................................................................................................3

1 General............................................................................................................................................4

1.1 Description code ..........................................................................................................................4

1.2 Marking ........................................................................................................................................4

1.3 Key for Pressure Equipment Directive.........................................................................................5

1.4 Functional principle......................................................................................................................5

2 Installation and Start-up................................................................................................................6

2.1 Prerequisite for the installation ....................................................................................................6

2.3 Preparation of the pipeline...........................................................................................................6

2.4 Observance of the IP degree (NEMA Type) of protection........................................................... 6

3 Flow table........................................................................................................................................7

4 Materials..........................................................................................................................................7

5 Technical Data................................................................................................................................8

6 Measuring temperatures ...............................................................................................................8

7 Dimensions.....................................................................................................................................9

8 Indicator part..................................................................................................................................10

8.1 Contact inserts.............................................................................................................................10

8.1.1 Electrical connection....................................................................................................................10

8.1.2 Limit setting..................................................................................................................................12

8.1.3 Switch contact definition ..............................................................................................................12

8.1.4 Technical data of limit switches ...................................................................................................13

8.2 Electrical signal output ESK.........................................................................................................14

8.2.1 Electrical connection....................................................................................................................14

8.2.2 HART

communication with the ESK .........................................................................................14

8.2.3 Technical data of ESK II ..............................................................................................................15

9 Service ............................................................................................................................................15

9.1 Contact insert...............................................................................................................................15

9.2 Installing an ESK .........................................................................................................................15

10 Maintenance ...................................................................................................................................16

Information on returning instruments..................................................................................................17

Form for returning the instrument........................................................................................................20

Product liability and warranty

The flowmeter is suitable for measuring the volume flow of liquids. Special regulations apply for use in explosion-hazardous areas. (Refer to the section on the scope of delivery.) Responsibility for the suitability and usage to the intended purpose of these flowmeters rests solely with the operator. Improper installation or improper operation of the flowmeters may lead to the loss of warranty. In addition, the "General

conditions of sale" which form the basis of the purchase contract are applicable. The calculation of the pressurized parts is effected with allowance for corrosion, erosion through abrasion or cavitation. If the flowmeter needs to be returned to KROHNE Messtechnik, please note the information at the end of these

installation and operating instructions.

Scope of delivery

● Installation and operating instructions Ident. No.: 702124##00

● Supply without installation accessories (screw bolts, flange seal and cabling)

Special certificates (supplied to order only)

● Test certificate to EN 10204:

● Pressure test, paint penetration test, irradiation test, leak test, ultrasonic test, heIium leakage test,

● Cleaning pursuant to works regulations

● Calibration certificate

1 General

1.1 Description code

The description code consists of the following elements: *)

1 2 3 4

1 Series measuring unit SDA

2 Display part series

M9 : Standard indicator M9S : with added corrosion prevention M9R : Stainless steel housing

3 Electrical signal output

ESK : Analog signal output

4 Limit switch

K1 : One limit switch K2 : Two limit switches

*) Positions which are not used in the description code are not required.

1.2 Marking

The type marking of the complete instrument is carried out at the display part by means of the rating plates shown here (also refer to the description code).

Example:

MD: Year of manufacturing PS: Max. permissible operating pressure

at max. permissible operating temperature TS PT max: Maximum pressure tested TS: Max. operating temperature PED: Directive for Pressure Equipment Tag No : Measuring point tag 0044: Identification number of the supervising office for

EC Directive for Pressure Equipment 97/23/EC

SN: Serial number SO: Sales order / item KO: KROHNE order Vxxxx…: Product configurator code AC: Article code

1.3 Key for Pressure Equipment Directiv e

PED / / /

1 2 3 4 5

1 Pressure Equipment Directive

2 Fluid

G Gases, liquefied gases, gases dissolved under pressure, vapors and those liquids

whose vapor pressure lies more than 0.5 bars over the normal atmospheric pressure

(1013 mbars) at the maximum permissible temperature

L Liquids whose vapor pressure lies a maximum of 0.5 bars above the atmospheric

pressure at the maximum permissible temperature 3 Fluid group

1 Group 1: Explosion-hazardous, highly flammable, readily flammable, flammable

(when the maximum permissible temperature lies above the flash point), highly toxic, toxic, fire stimulating

2 Group 2: All the fluids not specified in Group 1

4 Category

3.3 In accordance with Article 3.3 of Directive 97/23/EC I Category I to 97/23/EC II Category II to 97/23/EC III Category III to 97/23/EC

5 Conformity evaluation process

SEP Solid engineering practice A Module A internal process inspection A1 Module A1 internal process inspection with supervision of the acceptance H Module H Comprehensive quality assurance

The PED key marking is contained on the rating plate of the instrument.

1.4 Functional principle

A half-round plate, or flap, is fastened across the direction of flow to a springmounted rotating spindle in a ring that is inserted between flanges in a pipeline. As the flow rate increases, the flap rotates counter

to the restoring force F of the spring in the direction

of flow. The ensuing angle of rotation, depending on the volume rate of flow, is transmitted via a magnetic coupling to the indicator part.

2 Installation and Start-up

2.1 Prerequisite for the installation

The operating pressure of the plant may not exceed the value indicated on the rating plate.

Ensure that the parts coming into contact with the medium are compatible with the material. The ambient and medium temperatures may not exceed certain maximum values. In order to prevent distortions the connecting flanges have to face each other axially and in parallel.

2.3 Preparation of the pipeline

Generally comply with the maximum pressure and maximum temperature levels allowable for the SDA at the measuring point in your plant. The direction of flow must be the same as that indicated by the flow arrow on the device.

Drain the pipelines before installing the device. Use gaskets made of rubber or SIL; for plastics devices, use only gaskets made of rubber with

a Shore hardness A of approx. 65°. The gaskets should not project into the pipeline and the flow meter must be in line with the pipe

axis, otherwise measurements would be falsified and/or the device could jam. Incorporating the indicator part in the equipotential bonding system in the hazardous area:

The indicator part must be earthed. This can be done e.g. using a wire jumper between the flange on the indicator part and a pipe flange on the main pipeline with cable lugs appropriate for the bolted connection (not included with the flow meter!).

Incorporating the indicator in the lightning protection system (if necessary). The Operator is responsible for checking and determining the scope!

2.4 Observance of the IP degree (NEMA Ty pe) of protection

The following instructions are to be observed in order to observe the IP degree (Nema Type) of electrical built-

in parts:

● After the connecting cable has been introduced, tighten the outlet nut.

● All the cable glands which are not used remain closed with blanking plugs.

● Do not kink lines directly at the cable gland.

● Provide a drain bend

● The feed lines may not be subjected to mechanical strains. Refer to the description of the electrical supplementary components for this device.

Cable glands / screwed glands:

Thread Material Line diameter Degree of protect Remark

M 16x1.5 PA 5 - 10 mm IP 68 - 5 bars Standard

M 20x1.5 PA 8 - 13 mm IP 68 - 5 bars

M 16x1.5 Nickel-plated bras

M 20x1,5 Nickel-plated bras

5 - 9 mm IP 68 - 5 bars

10 - 14 mm IP 68 - 10 ba

* Degree of protection is limited here to the cable screwed gland

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