OME Screw Spindle Flowmeter

Brand: KOBOLD Instruments, Inc.

The Kobold screw-type volumetric flowmeter has proven itself in many applications over a long period of time; it has now been extended with an economical alternative - the OME type series - for the economical measurement or batching of viscous media.

These measuring sensors have been designed for viscous, non-abrasive media of 1 - 5000 mm2/s; they have been introduced as a response to today's innovative metrology and its demands for greater accuracy and reliability.

The screw-type volumetric meter works with the principle of positive displacement. Two cycloidal spindles, whose rotation is sensed by one or two sensors, are at the heart of the flowmeter.

A new technique has been patented to sense the spindles directly, thus providing a compact and economical volumetric meter. The axial flow of the forced measured medium causes the pair of spindles to rotate in a uniform, non-pulsating manner.

The spindles have been manufactured with extreme precision. They are supported at their ends by ball bearings. The pair of spindles form volumetrically defined measuring chambers, which are a measure of the delivered volumetric flow.

These unit volumes are evaluated by downstream electronics.

A double pulse generator can be used for direction sensing and doubling the pulses of pulse generator.

Specifications

Accuracy

  • ± 0.1 % of Measuring Span

BSP Connection

  • G 1"
  • G 1/2" Female
  • G 1-1/2" Female
  • G 3/4"

Enclosure / Body Material

  • Aluminum

Environmental Protection

  • IP65

Filter

  • ≤ 300 μm

Flange Material

  • Aluminum

Flange Size - 1" (DN 25)

  • 1" (DN 25) - Unrated

Flange Size - 1/2" (DN 15)

  • 1/2" (DN 15) - Unrated

Flange Size - 1-1/2" (DN 40)

  • 1-1/2" (DN 40) - Unrated

Flange Size - 3/4" (DN 20)

  • 3/4" (DN 20) - Unrated

Flow Rate

  • 0.1-10 to 3.5-350 LPM to Liquid

Maximum System Pressure

  • psi: 580.2 (kPa: 4,000, bar: 40)

O-Ring Material

  • FPM

Output

  • Pulse Signals

RTD Type

  • Pt100

Sensor / Probe Type

  • Pt1000

Spindle Material

  • Nitrated Steel

Supply Voltage

  • 10-30 Vdc

Temperature Range

  • 125° C (257° F) - Maximum
  • -20° to 125° C (-4° to 257° F)

Documentation

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