Kobold DPM Operating Manual

Operating Instructions

for

Low Volume Rotating Vane

Flow Meter

Model: DPM-...

DPM

1. Contents

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

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

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

4. Regulation Use .............................................................................................. 3

5. Operating Principles ...................................................................................... 4

6. Mechanical Connection ................................................................................. 4

6.1. Check service conditions: .................................................................... 4

6.2. Installation ............................................................................................ 4

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

7.1. General ................................................................................................ 5

7.2. DPM...0000 (OEM without cable) ........................................................ 5

7.3. Evaluation electronics:

7.4. Evaluation electronics: Analogue output (..L..) ..................................... 6

7.5. Compact electronics: (..C30R, ..C30M, ..C34P, ..C34N) ..................... 6

7.6. Evaluation electronics: Pointer indication (..Z300, ..Z340) ................... 7

8. Operating – Evaluation Electronics ............................................................... 7

8.1. Frequency output ................................................................................. 7

8.2. Analogue output ................................................................................... 7

8.3. Compact electronics ............................................................................ 7

8.4. Pointer indication (..Z300, ..Z340) ........................................................ 7

9. Maintenance ................................................................................................. 8

10. Technical Information .................................................................................... 8

10.1. Sensor data ......................................................................................... 8

10.2. Evaluation electronics .......................................................................... 9

11. Order Codes ............................................................................................... 10

12. Dimensions (mm) ........................................................................................ 11

13. EU Declaration of Conformance .................................................................. 12

Manufactured and sold by:

Frequency output (..F300;..F320;..F340;..F380) .................................. 6

Kobold Messring GmbH

Nordring 22-24

D-65719 Hofheim

Tel.: [phone]

Fax: [phone]

E-Mail: [e-mail]

Internet: www.kobold.com

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DPM

2. Note

Please read and take note of these operating instructions before unpacking and
putting the unit in operation, and 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 with the prevailing regulation applying to
procedural safety and the prevention of accidents.
When used in machines, the measuring unit should be used only then when the
machines fulfil the EC-machine guide lines.

PED 2014/68/EU

In acc. with Article 4, Paragraph (3), "Sound Engineering Practice", of the
PED 2014/68/EU no CE mark.
Table 8, Pipe, Group 1 dangerous fluids

3. Instrument Inspection

These devices are checked before dispatch and shipped in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of
the delivery packaging. In case of signs of damage to the packaging, please
inform your parcel service/forwarding agent immediately, since they are
responsible for damages during transit.

Scope of delivery:

 Low Volume Rotating Vane Flow Meter model: DPM
 Operating Instructions

4. Regulation Use

Any use of the Rotating Vane Flow Meter, model DPM, which exceeds the
manufacturers specification may invalidate its warranty. Therefore, any resulting
damage is not the responsibility of the manufacturer. The user assumes all risk
for such usage.

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DPM

5. Operating Principles

KOBOLD model DPM flow meters are used for measuring and monitoring liquids.
Due to its compact construction the measuring instrument is suitable for use with
machines with minimum available space. The system can be used in a wide
variety of applications because the output pulses can be analysed in many
different ways.
The medium flows though a specially shaped housing nozzle and causes a vane
to rotate. This rotary motion is sensed by optoelectronics in a non-contacting
manner, and converted to an pulse frequency signal or an analogue signal. A
frequency divider with pulse output is available as an option. The frequency is
proportional to the flow velocity. The vane is sapphire-supported, this ensures a
high degree of linearity and long service life.

6. Mechanical Connection

6.1. Check service conditions:

 flow
 max. operating pressures
 max. service temperature

Attention! Overrange can cause damage to bearings and major
measuring errors

6.2. Installation

 flow in direction of arrow (universal)
 avoid pressure and tensile loads, mechanically fix inlet and outlet lines at

distances of 50 mm from the connections

 check connections for leaks

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