Kobold DRH Series Manual de usuario

Operating Instructions

for

Rotating Vane Flow Meter

Model: DRH-...

DRH

page 2 DRH K12/0923

1. Contents

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

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

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

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

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

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

6.1. Check service conditions: ............................................. 5

6.2. Installation .................................................................... 5

7. Electrical Connection .......................................................... 6

7.1. General ........................................................................ 6

7.2. Output electronics: Frequency output (..F300;..F320,

..F340) ......................................................................... 6

7.3. Output electronics: Analogue output (..L303, ..L342,

..L343, ..L442) .............................................................. 7

7.4. Cable outlet with M12x1 angle plug electronic options

F3x and L3x ................................................................. 8

7.5. Compact electronics: (..C30R, ..C30M, ..C34P,

..C34N) ........................................................................ 9

8. Commissioning – Output electronics ................................ 10

8.1. General ...................................................................... 10

8.2. Setting - compact electronics ..................................... 10

9. Maintenance ..................................................................... 11

10. Technical Information ....................................................... 12

11. Order Codes ..................................................................... 12

12. Dimensions ....................................................................... 12

13. Disposal ............................................................................ 13

14. EU Declaration of Conformance ....................................... 14

15. UK Declaration of Conformity ........................................... 15

Manufactured and sold by:

Kobold Messring GmbH

Nordring 22-24

D-65719 Hofheim/Germany

Tel.: +49(0)6192-2990

Fax: +49(0)6192-23398

E-mail: [email protected]

Internet: www.kobold.com

DRH

DRH K12/0923 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.

Operating instructions, data sheet, approvals and further information via the QR

code on the device or via www.kobold.com

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 machinery, the flow meter should only be placed in operation if the

machine in use complies with the EEC machinery guidelines.

According to PED guideline 2014/68/EU

No CE marking, see Article 4, Section 3 "Sound engineering practice",

Guideline 2014/68/EU

Diagram 8, Piping systems, Group 1 Hazardous fluids

3. Instrument Inspection

Instruments are inspected before shipping and sent away 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:

 Rotating Vane Flow Meter model: DRH-...

DRH

page 4 DRH K12/0923

4. Regulation Use

Any use of the DRH which exceeds the manufactures specification may invalidate

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

manufacturer. The user assumes all risk for such usage.

5. Operating Principle

KOBOLD Rotating Vane Flow Meters series DRH are used for measuring and

monitoring low viscous liquids.

Series DRH flow meters are working according the well-known rotating vane

principle. A magnet fitted in the vane and hermetically sealed from the medium

transfers non-contacting the rotary motion to a Hall-effect sensor mounted in the

housing. The sensor converts the rotary motion which is proportional to the flow

to a frequency signal. A series-connected electronics unit converts the signal to

an analogue output, limit contacts or display.

These devices can be adapted to prevailing plant conditions with the 360°

rotatable screw connections.

DRH

DRH K12/0923 page 5

6. Mechanical Connection

6.1. Check service conditions:

 Flow rate

 Maximum operating pressures

 Maximum operating temperature

Attention! Overrange can cause damage to bearings and cause

major measuring errors.

6.2. Installation

 It must be ensured that the instrument housing is continuously filled with the

flow medium, especially for flows from top to bottom. No straight lengths are

necessary at inlet and outlet connections.

 Check that flow is in the direction of the arrow on the front of the unit, and that

the face of the unit is aligned in the vertical plane (axle in horizontal plane)

 Avoid pressure and tensile loads

Mechanically secure the inlet and outlet lines 50 mm from the connection

 Check connections for leaks.

DRH

page 6 DRH K12/0923

7. Electrical Connection

7.1. General

Attention! Make sure that the voltages in your plant correspond

with the flow meter voltages.

 Make sure that all electrical supply lines are de-energised.

 Connect supply voltage and output signal to the plug connector pins as shown

below.

 We recommend a power supply cable with diameter 0.25 mm².

Attention! The instrument electronics may be damaged if the cable

connections are assigned incorrectly.

7.2. Output electronics: Frequency output (..F300;..F320, ..F340)

+Vs

Signal

Out

n.c.

GND

DRH

DRH K12/0923 page 7

7.3. Output electronics: Analogue output (..L303, ..L342, ..L343,

..L442)

3-wire (..L303, ..L343)

2-wire (..L342)

S+

S-

n.c.

+Vs

GND

+Vs

Signal

Out

n.c.

GND

+Vs

GND

DRH

page 8 DRH K12/0923

2-wire, DIN plug connector (..L442)

7.4. Cable outlet with M12x1 angle plug electronic options F3x

and L3x

When using a pre-assembled M12x1 connection cable with angled plug, the

cable outlet is always aligned opposite to the flow direction.

+Vs

GND

S+

S-

PE n.c.

DRH

DRH K12/0923 page 9

7.5. Compact electronics: (..C30R, ..C30M, ..C34P, ..C34N)

7.5.1. General

Attention! Make sure that the voltages in your plant correspond

with the flow meter voltages.

 Make sure that all electrical supply lines are de-energised.

 Connect supply voltage and output signal to the plug connector pins as shown

below.

 We recommend a power supply cable with diameter 0.25 mm².

Attention! The instrument electronics may be damaged if the cable

connections are assigned incorrectly.

7.5.2. Compact electronics: (..C30R, ..C30M)

7.5.3. Compact electronics: (..C34P, ..C34N)

The clamps 3 and 5 are short-circuited and can therefore be used optional for the

output signal or power supply.

DRH

page 10 DRH K12/0923

8. Commissioning – Output electronics

8.1. General

The measuring instruments are preset and are ready for operation after electrical

connection.

8.2. Setting - compact electronics

See

Operating instructions supplement

for compact electronics with frequency output

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