Kobold DSS Series Manual de usuario

Operating Instruction

for

Flow Monitor

Model: DSS-...

DSS

Page 2 DSS K08/0322

1. Contents

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

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

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

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

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

6.Mechanical Connection ................................................................................. 5

7.Electrical Connection .................................................................................... 5

7.1.Plug Connection .................................................................................. 5

7.2.Ex-Contact with Cable Connection ...................................................... 6

7.3.Examples of contact protection devices ............................................... 6

8.Use in hazardous area .................................................................................. 7

8.1.Statement an apparatus not containing an own potential source

following Directive 2014/34/EU ............................................................ 7

8.2.ATEX contact ...F0... ............................................................................ 8

8.3.ATEX reed contact 41R57** ............................................................... 8

9.Commissioning............................................................................................ 15

10.Maintenance ............................................................................................... 15

11.Technical Information .................................................................................. 16

12.Order Codes ............................................................................................... 18

13.Dimensions ................................................................................................. 18

14.Recommended Spare Parts ........................................................................ 19

15.EU Declaration of Conformance (DSS) ....................................................... 20

16.UK Declaration of Conformity (DSS) ........................................................... 21

17.EU Declaration of Conformance (reed contact 41R57**) ............................ 22

18.Statement of conformity reed contact 41R57** ........................................... 23

19.Declaration of the Manufacturer (F0) .......................................................... 27

20.EC-Type Examination Certificate Magnetic reed switch (F0) ...................... 28

21.IECEx certificate (F0) .................................................................................. 31

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

DSS

DSS K08/0322 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.

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.

Pipe

Table 8

Group 1

dangerous fluids

DSS, 1/4" - 1" Art. 4, § 3

DSS, brass, 1 1/4" not deliverable

DSS, stainless steel, 1 1/4" Cat. II

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 supply:

The standard delivery includes:

 Flow Monitor Model: DSS

DSS

Page 4 DSS K08/0322

4. Regulation Use

Model DSS instruments monitor liquid flows. Only clean, homogeneous liquids of

low viscosity - against which the instrument materials are resistant - should be

monitored. Large switching inaccuracies may occur with highly viscous media.

Large dirt particles can block the float and thus cause faulty signals. Pieces of

ferrite deposited on the embedded float magnet can also cause problems. The

installation of a magnetic filter is recommended to avoid these problems.

The instruments are fitted as follows:

Limit value contacts

The instruments are fitted with one or two adjustable limit value contact(s) for flow

rate monitoring. The contact can be adjusted over the entire measuring range by

taking the hysteresis into consideration.

5. Operating Principle

The Flow Monitor model DSS works according to the well-

known variable area principle, however without the standard

conical measuring tube that expands upwards. Instead the

patented instruments have a cylindrical flow tube that is

slotted conically along its length. A float is situated in this

flow tube that is raised by the medium inflow. Each float

level corresponds to a particular flow. Permanent magnets

that activate the sealed contact (reed switch) arranged

outside are embedded in the float. The contact is operated

non-contacting by magnetic force, that is, the contact is

separated hermetically from the flowing medium.

DSS

DSS K08/0322 Page 5

6. Mechanical Connection

Before installation

 Make sure that the max. allowed operating pressures and service

temperatures are not exceeded

 (see standard material combinations).

 The instrument is fitted vertically in the piping. Flow is from bottom to top

(vertical dial).

 Remove all transport restraints and make sure that none of the packing

remains in the instrument.

 Use Teflon tape or something similar to seal the screw connections.

 The instruments should not be installed in an induction field.

 If possible, check after mechanical installation that the threaded joint/pipe

connection is tight (see section 9. Commissioning).

7. Electrical Connection

7.1. Plug Connection

 Make sure that the electrical supply wires are de-energized.

 Undo the locking screw on the plug cap and remove the cap

from the base.

 Mount supply line in the plug cap as shown in the wiring

diagram.

 If the contact has not been adjusted, adjust it now (see

section 9. Commissioning).

 Insert the plug connector to the contact stem and fix it with

the retaining screw. (see section 9. Commissioning)

DSS

Page 6 DSS K08/0322

Ex-contact N/O

7.2. Ex-Contact with Cable Connection

Special conditions for a safe application

 The connection of the solenoid switch must be carried out in housings which

correspond to a standardized ignition protection class in accordance with EN

50014, 1.2.

 The short-circuit current Ik of the supply source must not exceed 5 A.

 The switch is suitable for an ambient temperature area of -20...+70 °C.

General

 Make sure that the supply wires are de-energized.

 Mount supply line to the connecting cable as shown in the wiring diagram.

 If the contact has not been adjusted, adjust it now. (see section 9.

Commissioning)

Attention! The specified electrical values for the sealed contact

should not be exceeded even for short periods. We recommend

contact protection relays or other contact protection device for

higher switching values.

 When the external devices have been connected to the limit contact and the

switch point has been set, the electrical connection is complete.

 The instrument can now be put into operation now.

7.3. Examples of contact protection devices

For capacitive and inductive loads (long leads and relays/contactors) we

recommend contact protection relays or the following suppressor circuits.

DSS

DSS K08/0322 Page 7

8. Use in hazardous area

8.1. Statement an apparatus not containing an own potential

source following Directive 2014/34/EU

DSS

Page 8 DSS K08/0322

8.2. ATEX contact ...F0...

II 2G Ex mb IIC T6 Gb

II 2 D Ex mb IIC T80 °C Db

max. 250 VAC/1.5 A/100 VA

8.3. ATEX reed contact 41R57**

ATEX N/O contact 41R57

II 3G Ex ic IIC T4 Gc

II 3 D Ex ic IIIC T125 °C Dc

-20 °C ≤Ta≤80 °C

max. 250 VAC/DC/1.5 A/100 W/100 VA

ATEX changeover contact 41R57U

II 3G Ex ic IIC T4 Gc

II 3 D Ex ic IIIC T125 °C Dc

-20 °C ≤Ta≤80 °C

max. 250 VAC/DC/1 A/30 W/60 VA

DSS

DSS K08/0322 Page 9

Ex-relevant excerpt of the operating instructions of the reed contact

41R57 **

1. Preambel

This excerpt of the operating instructions only represents the ex-relevant aspects.

It is copied into the original operating manual in the same or analogous form;

Textual changes are permitted, the ex-relevant statements remain.

To ensure the function and for your own safety, please read the enclosed

operating instructions carefully before you begin the installation. If you have any

questions, please contact the KOBOLD Messring GmbH, Hofheim. It applies with

the original operating instructions.

The following standard issues were considered in the evaluation of the product:

a) IEC 60079-0:2017 Ed. 7 / EN 60079-0:2018 Explosive atmospheres –

Part 0: Equipment - General requirements

b) IEC 60079-11:2011 Ed. 6 + Corr. 2012 / EN 60079-11:2012 Explosive

atmospheres - Part 11: Equipment protection by intrinsic safety "i"

2. General information on explosion protection

The reeds switches work together with various KOBOLD products and serve

there for monitoring. It is available as N/O contact or changeover contact.

The electrical connection is made via a plug - only in intrinsically safe systems.

The reed switch is intended for commercial use and may only be used in

accordance with the specifications in the technical documentation of Kobold and

the information on the nameplate. It is only operated together with certified

products via an intrinsically safe circuit. They comply with the valid standards and

regulations.

The installation regulations (e.g. EN 60079-14) for systems in potentially

explosive atmospheres must be observed.

Further important details can be found in the corresponding EC-type examination

certificate.

Permitted use

• The intrinsically safe reed switch can be used as follows:

• In Zone 2 (Gas-Ex, EPL Gc) in explosion groups IIA, IIB and IIC

• In Zone 22 (Dust-Ex, EPL Dc) in explosion groups IIIA, IIIB and IIIC

• The requirements for simple electrical equipment for use in intrinsically safe

circuits in zones 1/21 are fulfilled.

• The qualification regarding the surface temperature is T4. For all gases, vapors,

mists with an ignition temperature> 135 ° C the equipment is not an ignition

source.

• In the dust Ex area, 125 ° C is the reference temperature for further

consideration regarding the safety distance from the smoldering temperature.

• The ambient temperature range is -20 ° C ≤ Ta ≤ 80 ° C.

DSS

Page 10 DSS K08/0322

2.1. Electrical characteristics for Ex i

Electrical data:

• Rated voltage up to 45 volt AC / DC

• Rated current up to 2 A

• UiIC ≤ 30 V AC / DC, IiIIC ≤ 250 mA

• UiIIB ≤ 45 V AC / DC, IiIB ≤ 2 A

• UiIIIC ≤ 45 V AC / DC, IiIIIC ≤ 250 mA

• Li = negligible, Ci = negligible

• Heating on the outer housing <15 K

2.2 Type code

The equipment is identified by the following type code:

Type Description Item-No. Remarks

41R57 A B

pe codin

41R57 Contact device

N/O contact

(

2 wires

)

, Plu

with black cap

Change-over contact (3 wires), Plug with grey

cap

B 70

–

75 with markin

(

not ex-relevant

)

202.289 N/O

–

50 with markin

202.285 N/O

–

55 with markin

202.286 N/O

60 – 65 with marking 202.287 N/O

–

75 with markin

202.288 Chan

e-over

–

65 chan

e-over contact

202.290 Chan

e-over

2.3 Temperature class

The reed switch is suitable for temperature class T4 / T125 ° C.

2.4 General requirements

2.4.1 Intended Use

a) To ensure safe operation, the products may only be used according to the

instructions in the assembly instructions. During use, the legal and safety

regulations required for the respective application must be observed in

addition. This applies analogously when using accessories.

b) Failure to comply with the instructions given in this excerpt or in the case of

improper handling of the product will render our liability null and void. In

addition, the warranty on products and spare parts is void.

c) The products are not safety elements in terms of their intended use.

d) Only original parts of the manufacturer may be used.

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