Kobold DRS Turbine Wheel Flow Meter/Monitor

Kobold DRS Turbine Wheel is used for measuring and monitoring liquids. Due to its compact construction the mini turbine is suitable for use with machines with minimum available space.

Kobold DRS Turbine Wheel Flow Meter/Monitor

Kobold DRS Turbine Wheel Application Examples

Beverage industry, devices for use in automatic beverage retail systems, washing machines, vehicles, farm equipment, developing machines in the photographic and printed-circuit board industries.

Working Principle

The flowmeter operates on the turbine wheel principle. The liquid first flows through a laminar flow element to eliminate turbulence and to route the flow stream to 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.

Frequency divider, analogue output or compact electronics with LED display and limit contacts are available as options. An integrated temperature sensor for simultaneous measuring of flow rate and temperature are available as an additional option. The vane is sapphire-supported: this ensures a high degree of linearity and long service life.

Model Summary

DRS-0...K000, DRS-0...S000

• OEM version (without CE mark)
• direct output from Hall-sensor signal
• for DRS-K000 no optional temperature sensor available
• DRS-0...S000 up to 150°C medium temperature

DRS-...F300

• Pulse output

DRS-...F390

• Pulse output with adapted frequency
• Factor 0.25...2

DRS-...L...

• Analogue output 0(4)-20 mA / 3-wire

DRS-...C30...

• With compact electronics, 3-digit LED display, limit contacts, no optional temperature sensor available

DRS-...C34...

• With compact electronics
• 3-digit LED display, limit contact, analogue output
• no optional temperature sensor available

Kobold DRS Turbine Wheel Technical Details

• Measuring range: 2-40 l/min water
• Sensor pulse output:
  384 Hz at 40 l/min
  metal sensor (DRS-150; DRS-250)
  352 Hz at 40 l/min
  plastic sensor (DRS-350)
• Max. operating pressure:
  200 bar (DRS-150; DRS-250)
  16 bar (DRS-350)
• Temperature:
  -20...+80°C (medium)
  -20...+100°C (bearing)
  -20...+150°C (medium with DRS-...S)
• Measuring accuracy:
  ±1,5% of full scale
  ±5% of full scale (DRS-...K0000)
• Linearity: ±0,5% of full scale
• Repeatability: ±0,1% of full scale
• Electrical connection:
  plug connector M12x1
  1,5 m cable (DRS-0 only)
  2 m cable (DRS-...F5 only)
  1,5 m silicone cable (DRS-...S)
• Protection: IP 65 (plug connector), IP 66 (cable)

Download Datasheet: Kobold DRS Turbine Wheel Flow Meter/Monitor

Reference : kobold.com