DFT Rotating Vane Flowmeter

Brand: KOBOLD Instruments, Inc.

The established vane technology has proven itself a million times worldwide for measuring and monitoring the flow of different media through piping. KOBOLD flow meters/ monitors work with this proven principle and offer may benefits.

The heart of the new KOBOLD vane is an embedded ring magnet; it is hermetically sealed from the flow medium. It transfers, in a non-contacting manner, the rotary motion of the vane to a Hall sensor attached to the case (in order to save space). This converts the rotary motion to a frequency signal that is proportional to the flow rate.

The downstream KOBOLD evaluating electronics can output this signal to a display, convert it to (0(4) -20 mA, 0-10 V) Analog signal, or count it. It may also be used to switch up to two limit contacts. The ready and control states of the limit value relay are indicated by LEDs.

The modular design of KOBOLD flow monitors and measuring instruments is a system that can be universally applied; it is reasonably priced; and requires minimum space when in service. Very precise measurement results can be achieved, under tough operating conditions along with the KOBOLD electronics. The system is assembled with the electronics and delivered ready for service.

The electronics are adjusted and tuned for use with the sensor. When retrofitted for other measuring ranges, the system may be readjusted with a similar device at any time.

Specifications

Accuracy

  • 2.5 % of Full Scale

Ambient Temperature Range

  • -20° to 80° C (-4° to 176° F)

Applications

  • Chemical Industry
  • Cooling Water Monitoring
  • General Mechanical Engineering
  • Heavy Goods Industry
  • Wastewater Treatment

Axle Material

  • Aluminum Oxide
  • Ceramic
  • Sapphire

Bearing Material

  • PTFE

BSP Connection

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

Cable Length

  • 5 feet (1.5 metres)

Cover Material

  • Brass
  • PTFE

Display

  • 2 × 8-Digit LCD Display

Electrical Connectors

  • 2 × Plug M12 (5/8-Pin)
  • Cable Connection - 1.5 metres
  • Changerover Contact - Output
  • DIN 43650

Enclosure, Body Material

  • Brass
  • PTFE

Environmental Protection

  • IP65

Flow Rate

  • 0.2 to 60 L/minute

Function

  • Correction Amount
  • Fine Dosing
  • Flow Monitor
  • Language
  • Minimum/Maximum
  • Reset
  • Start
  • Stop
  • Total Quantity

Gasket Material

  • FEP-O-Seal with Silicone
  • NBR

Input Power

  • 100 mA - Maximum
  • 3.5 W, Maximum
  • 40-50 mA
  • 5 mA Approximately
  • 5 W, Maximum

Load Impedance

  • > 100 kiloohms
  • 0 to 500 ohms

Load Limit

  • 0-10 Vdc

Loop Resistance

  • < 100 Milliohms - Contact Resistance
  • 500 ohms - Maximum

Materials of Construction

  • Aluminum, Black Anodised - Front & Back Panel
  • PTFE - Vane

NPT Connection

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

Operating Pressure

  • Maximum

Orifice Size

  • 0.078" to 0.53" (2 to 13.5 mm)

Output

  • 0-10 V
  • 0-20 mA
  • 15 mA - Maximum
  • 20 mA - Maximum
  • 250 V, Maximum
  • 4-20 mA
  • 5 A, Maximum

Power

  • 2.5 mW, Maximum

Power Requirement

  • 115 Vac ± 20 % - Power Supply
  • 230 Vac ± 20 % - Power Supply
  • 24 Vac ± 20 %
  • 24 Vdc +15 % / -10 % - Power Supply
  • 24 Vdc ± 20 % - Power Supply
  • 5 to 24 Vdc - Power Supply

Relay Output

  • 2 Relays
  • 250 V / 5 A / 1,000 VA, Maximum

Screw Material

  • 316 Stainless Steel

Switch Type

  • Transistor - NPN: Pulse Output
  • Transistor - Open Collector: Pulse Output
  • Transistor - PNP: Pulse Output

Temperature Range

  • -20° to 80° C (-4° to 176° F)
  • Maximum

Version / Leadwires

  • 2-Wire
  • 3-Wire

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