OVZ Oval Wheel Flowmeter

Brand: KOBOLD Instruments, Inc.

The model OVZ oval wheel flow meters are used to measure, monitor and meter viscous liquids. The flow meters function independent of viscosity in the viscosity range between 10 and 800 mm²/s. A maximum pressure loss of 1 bar has been defined at the factory.

This results in different measuring ranges for different viscosities. The oval gearwheels are manufactured from high quality plastic.

Specifications

Accuracy

  • ± 2.5 % of Full Scale

Ambient Temperature Range

  • -10° to 60° C (14° to 140° F)

Axle Material

  • 304 Stainless Steel

BSP Connection

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

Cable Length

  • 6.56 feet (2 metres)

Cable Material

  • PVC

Consumption

  • 10 mA
  • 15 mA
  • 500 W

Cover Material

  • Aluminum
  • PMMA
  • Polyoxymethylene
  • Polysulfone

Display

  • 240° Display
  • 3-Digit LED Display

Electrical Connectors

  • Aluminum Adaptor Box with Cable Connection
  • Aluminum Cover Box with Circular Connector M12×1
  • Connector Socket DIN 43650

Electrical Contacts

  • N/C Contact
  • N/O Contact

Enclosure / Body Material

  • Aluminum
  • Polyoxymethylene

Environmental Protection

  • IP65
  • IP67

Filter

  • 30 μm

Flow Rate

  • 0.3 to 40 L/minute to Liquid

Frequency

  • 0.3 to 9 Hz
  • 2 to 57 Hz

Gasket Material

  • EPDM
  • FPM
  • NBR

Indication

  • 240° Indication
  • Moving Coil Instrument

Load Impedance

  • 250 ohms - Maximum
  • 500 ohms - Maximum

Materials of Construction

  • 316 Stainless Steel - Contactors
  • Oxide Ceramic Magnets - Contactors
  • Polyoxymethylene (POM) - Ovals Wheels

Maximum System Pressure

  • psi: 580.2 (kPa: 4,000, bar: 40)

NPT Connection

  • 1/2" NPT
  • 1/4" NPT
  • 3/4" NPT

O-Ring Material

  • Ethylene Propylene (EPR)
  • Fluorocarbon (FPM)
  • NBR

Output

  • 0-20 mA
  • 120 mA - Maximum
  • 3.5 mA - Maximum
  • 4-20 mA
  • Maximum

Output Function

  • NAMUR - Pulse Output

Power Requirement

  • 12-28 Vdc
  • 18-30 Vdc
  • 24 Vdc ± 20 %
  • 5-24 Vdc

Process Temperature

  • -10° to 80° C (14° to 176° F)

Sensor / Probe Connection

  • 3-Wire

Supply Voltage

  • 12-28 Vdc
  • 18-30 Vac
  • 24 Vdc ± 20 %
  • 5-24 Vdc
  • 8.2 Vdc - Nominal

Switch Type

  • Namur, Asymmetrical
  • PNP & NPN, Asymmetrical, Open Collector

Temperature Range

  • 80° C (176° F) - Maximum

Documentation

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