Kobold DRS Series Operating Instruction

2.  Note .............................................................................................................. 3 3.  Instrument Inspection .................................................................................... 3 4.  Regulation Use .............................................................................................. 3 5.  Operating Principle ........................................................................................ 4 6.  Mechanical Connection ................................................................................. 4 7.  Electrical Connection .................................................................................... 5 8.  Commissioning .............................................................................................. 9 9.  Maintenance ................................................................................................. 9 10. Technical information .................................................................................. 10 11. Order Codes ............................................................................................... 12 12. Dimensions ................................................................................................. 13 13. EU Declaration of Conformance .................................................................. 15 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

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 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 delivery:  Turbine-Wheel Flow Meter: Model DRS  Operating Instructions 4. Regulation Use The DRS is to be installed only in the specified applications. Any use of the DRS sensor which exceeds the manufacturer’s specifications may invalidate the warranty and any resulting damage is not the responsibility of the manufacturer. The user assumes all risk for such usage. The application specifications include the installation, start-up and service requirements specified by the manufacturer.

The DRS flow meter operates on the turbine wheel principle. The liquid first flows through a laminar flow element that eliminates turbulence and routes the flow stream into the turbine wheel. The turbine wheel then starts to rotate. This rotary motion is sensed non-contacting by magnets embedded in the turbine wheel and converted to a frequency signal. The frequency is proportional to the flow velocity. Various outputs, such as a frequency divider, analogue output or compact electronics with LED display with limit contacts are available as options. An integrated temperature sensor for simultaneous measuring of flow rate and temperature is also available as an additional option. The rotating vane is sapphire-supported: this ensures a high degree of linearity and long service life. 6. Mechanical Connection 6.1. Operational conditions check-up:  Flow volume  max. operational pressure  max. operational temperature Attention! Exceeding prescribed ranges may cause damage to ball- bearings and considerable measurement errors may result. 6.2. Mounting  Direction of flow must match the direction of arrow (position independent).  Pressure- and tensile loading is to be avoided on the connection threads. Inlet and outlet piping should be secured at least 50 mm away mechanically from the connections.  Check the sealing of the connections  The use of flat sealings is to be preferred. The sealing surfaces are shown in section 11 - “Dimensions“

7.1. General Attention! Ensure that the power ratings of your supply system are in agreement with the power ratings of the flow meter.  Please ensure that the electric supply lines are not active.  Wire the connection cable/plug with the supply line according to the following connection diagram.  We recommend a cross-sectional area of 0.25 mm² for the supply line. Attention! A false level on plug connections may cause destruction of unit’s electronics. 7.2. Evaluation electronics Frequency output without Pt100 Plug connection(..F3000; ..F3200; ..F3400; ..F3900) 1 2 3 4 +Vs Signal Out n.c. GND Plug connection (..F5000; ..F5200; ..F5400; ..F5900; ..K0000) brown: + VS blue: GND Black: Signal ...S000 ...S00P white: + Vs brown: + Vs green: Signal black: Signal brown: GND green-yellow: GND/PT100-1 yellow: PT100-2