Kobold PSR series Manuel utilisateur

Operating Instructions

for

Paddle Flow Monitor

Model: PSR-..., PSE-...

PSR/PSE

page 2 PSR/PSE K17/0618

1.Contents

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

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

3.Instrument Inspection....................................................................................4

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

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

6.Use in Hazardous Areas (PSx-2) ..................................................................5

6.1.General ................................................................................................5

6.2.Notes ...................................................................................................6

6.3.Electrical Contact.................................................................................6

6.4.Potential equalisation...........................................................................6

6.5.Electro-Static .......................................................................................7

6.6.Ultraviolet radiation ..............................................................................7

6.7.Propagating brush discharge ...............................................................7

7.Mechanical Connection.................................................................................8

8.Electrical Connection ....................................................................................9

9.Limit Switches ...............................................................................................9

10.Maintenance ...............................................................................................11

11.Technical Information..................................................................................12

11.1.General ..............................................................................................12

11.2.Model Label for IECEx- and ATEX-Version .......................................13

11.3.Model Code .......................................................................................13

12.Order Codes ...............................................................................................14

13.Recommended Spare Parts........................................................................17

14.Dimensions .................................................................................................17

15.EU Declaration of Conformance..................................................................18

16.Examination Certificate ...............................................................................20

17.IECEx Certificate.........................................................................................22

Manufactured and sold by:

Kobold Messring GmbH

Nordring 22-24

DE-65719 Hofheim

Tel.: +49(0)6192-2990

Fax: +49(0)6192-23398

E-Mail: [email protected]

Internet: www.kobold.com

PSR/PSE

PSR/PSE K17/0618 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 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.

Machine guidelines 2006/47 EC

No CE mark

By usage in machines, the measuring unit should be used only when the

machines fulfill the EC-machine guidelines.

as per PED 2014/68/EU

Pipe

Table 8

Group 1

dangerous fluids

Table 9

Group 2

non-dangerous

fluids

PSR-.. (1/4" - 1") Art. 4, § 3 Art. 4, § 3

PSR-132B and PSR-140B not deliverable Art. 4, § 3

PSR-232B and PSR-240B Cat. II Art. 4, § 3

PSR/PSE

page 4 PSR/PSE K17/0618

3.Instrument Inspection

Instruments are inspected before shipping and sent out in perfect condition.

Should the damage to a device be visible, we recommend a thorough inspection

of the delivery packing. In case of damage, please inform your parcel service/

forwarding agent immediately, since they are responsible for damages during

transit.

Scope of delivery:

Paddle Flow Monitor Model: PSR-.. / PSE-..

Operating Instructions

4.Regulation Use

Series PSR and PSE are used to monitor liquid flow. Instruments are provided

with an adjustable limit switch. Only low viscosity fluids that are compatible with

the material combination chosen are allowed to be monitored. If using higher

viscous media, large deviations in the specified switching range will occur.

The instruments are relatively insensitive to dirt, however large particles may

block the paddle, leading to erroneous alarm conditions; likewise, ferritic particles

may deposit on the magnet and lead to faulty operation. In case of doubt, please

contact the manufacturer.

PSR/PSE

PSR/PSE K17/0618 page 5

5.Operating Principle

The KOBOLD flow monitors of series PSE and PSR are used

where economical, reliable flow monitors are indicated.

Depending on the flow velocity respectively flow rate, the baffle

plate is deflected and moves the permanent magnet via the

balance arm into the switching range of the reed contact

mounted outside of the flow media.

The flat spring, which also serves as a support for the balance

arm, forces the baffle plate back to its rest position when there

is no flow. KOBOLD baffle plate flow monitors are supplied

completely assembled with fitting up to nominal size 40, or for

larger nominal pipe sizes - supplied without a pipe length for

direct insertion into standard T pieces or fittings. The sealing

takes place via PTFE tape.

6.Use in Hazardous Areas (PSx-2)

6.1. General

The paddle flow switch, being a mechanical component, has no inherent potential

ignition source. The mounted contact is suitable for usage in Ex-zone IIC and I as

an intrinsically safe component.

The measurement units can be used as follows:

In the Zone 0 (Gas-Ex, Cat. 1G) into explosion-group of IIA, IIB and IIC

In the Zone 20 (Dust-Ex, Cat. 1D)

In the Zone 2 (Gas-Ex, Cat. 3G) into explosion group of IIA, IIB and IIC

In the Zone 22 (Dust-Ex, Category 3D)

In the Zone 1 (Gas-Ex, Cat. 2G) into explosion group of IIA, IIB and IIC

In the Zone 21 (Dust-Ex, Category 2D)

In hazardous areas 1 and 2 in underground mining (category M1 and M2)

Regulation usage does not cause any zone inside the fitting or at paddle.

Exceptions are possible during start-up and shut-down of the plant.

PSR/PSE

page 6 PSR/PSE K17/0618

The medium temperature limit area is fixed as follows:

Model Medium Temperature Pmax

NBR-seal FPM-seal

PSR-2132**;

PSR-2140 -20....+70 °C -20...+110 °C 25 bar

all other -20...+70 °C -20...+110 °C 100 bar

6.2. Notes

The following points must be observed when using in hazardous area:

• The notes in every operating manual that is provided by the manufacturer must

be strictly observed.

• Fixed parts (eg due to frost or corrosion) may not be solved by force in an

explosive atmosphere present.

• Mechanical elements must be cleaned according to the conditions on site.

• The unit must be protected against external strikes.

• To ensure explosion protection, electrical and additional equipment must

comply with the requirements of applicable local zones and must be examined

separately by the installer of the machine / plant.

• It must be ensured that the device is included in the potential equalization.

• It is particularly important to ensure that no stray currents (due to engines that

are operated with frequency inverters, welding machines and / or corrosion

protection equipment) are performed on the devices.

• Direct dangerous electrostatic discharge to the resource should be avoided

• The device may only be exposed to small vibrations

• Freezing up of the device must be avoided.

6.3. Electrical Contact

The paddle flow switch can directly switch intrinsically safe circuits in Ex-zone or

may be used in intrinsically safe current circuits in combination with a certified

switching amplifier. The electrical connection is explained in chapter 8 “Electrical

Connection”.

6.4. Potential equalisation

The all metal flow meters are to be incorporated in potential equalization system

of the plant. This is achieved via metallic connection pipe.

PSR/PSE

PSR/PSE K17/0618 page 7

6.5. Electro-Static

The devices are to be protected against electrostatic unloading. The case of the

device is to be earthed electro-statically (for example with metal pipes). Besides,

the local potential balance is to be established according to local regulations.

The wires must be protected in the installation in the hazardous area “0” against

electro-static unloading. This can be done by using conducting pipes and rigid

covers.

6.6. Ultraviolet radiation

The instruments incl. cables should be protected against radiation.

6.7. Propagating brush discharge

In dust Ex-areas propagating brush discharges should be avoided on the plastic

parts and cables.

PSR/PSE

page 8 PSR/PSE K17/0618

7.Mechanical Connection

Before installation

Please check that the actual flow matches with the

switching range of the instrument.

Ensure that the allowable maximum operating

pressure and operating temperature of the

instruments will not be exceeded.

Remove all transport packing and be sure that no

packing material is left in the instrument.

The instrument may be installed in any position

(except PSR-..32 / PSR-..40 - for horizontal

installation only); however, the top half of the paddle

switch must be vertically positioned in relation to the

pipe axis, and the arrow on the threaded fitting must match the flow direction.

For dirty media, it is recommended that the upper housing will be installed as

close to vertical as possible, respectively with not more than 40° deviation from

vertical. This will prevent dirt from being deposited in the upper housing. When

this is not possible, we recommend the instrument to be cleaned more

frequently (see maintenance).

The application of PTFE tape or similar sealant to the connection threads is

recommended.

Check that the connection threads of the pipe are fully sealed.

Attention! Make sure that the supply voltage to the instrument conforms to

the value stated on the equipment label. For higher power loads, we

recommend our contact protection relay model MSR-10.

The inlet and outlet section needs to be minimum 5 x DN in front of and after the

flow meter.

PSR/PSE

PSR/PSE K17/0618 page 9

8.Electrical Connection

Ensure that the electrical supply lines are powerless.

Connect the connection cable with your supply cable.

The contact housing is made of glass-fibre reinforced plastic.

It is insulated in accordance with VDI 0720 Class II; separate

insulation measures are not necessary.

After connecting the external equipment, the instrument

is ready for operation.

9.Limit Switches

The instrument is supplied with an adjustable contact. The standard contact,

depending on the adjustments can be used either as N/O or N/C switch. The

instrument is supplied ex works as a normally open contact. Optionally, the

PSR/PSE can be ordered with an SPDT switch.

Contact mode

Depending on the positioning of the adjustable standard switch, the following

contact modes are available.

Normally open

The contact closes when the flow increases and the set point value is reached

or exceeded. The switch opens again with falling flow at the minimum value

based on the switch hysteresis.

Normally closed

The contact opens when the flow increases and the set point value is reached

or exceeded. The switch closes again with falling flow at the minimum value

based on the switch hysteresis.

Option: Changeover (SPDT) contact

The normally open and normally closed switch modes are simultaneously

available from the same position. When retrofitting the standard design with an

SPDT switch, the upper switch housing must be replaced at the same time.

brown black red

PSR/PSE

page 10 PSR/PSE K17/0618

Switch Point Adjustment

When adjusting the switch point, the clamp plate in the top of the upper housing

must be loosened, enabling the switching unit to be repositioned. For ease of

adjustment, the switching unit is marked with a white and a red arrow. The front

edge of the clamp plate serves as the adjustment marker.

Normally open contact

(standard setting, as shipped)

The switch range is adjustable in the

area of the red arrow. By sliding the

switching unit in the direction of flow,

the minimum switching value given in

the table is achieved. By sliding the

switching unit in the opposite direction,

the maximum listed switch value is

achieved.

Normally closed contact

The switch range is adjustable in the area of the white arrow. By sliding the

switch unit in the direction of flow, the minimum switch value given in the table is

achieved. By sliding the switch unit in the opposite direction, the maximum listed

switch value is achieved.

Option: Changeover contact

The following options for wiring apply:

Black and brown conductor = contact opens at decreasing flow.

Black and red conductor = contact closes at decreasing flow.

After successful adjustment, tighten the clamp plate by means of the screws.

Hysteresis

The Hysteresis is defined as the difference between the opening and closing flow

values of a contact. For example, the model PSR 11083 with minimal switching

adjustment and increasing flow is switching on at 2.3 l/min and will switch off at

1.6 l/min at decreasing flow. Contact hysteresis = 0.7 l/min.

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