DF 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 mediums in pipelines. KOBOLD flow meters/ monitors work with this proven principle and offer many 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 with 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 re-adjusted with a similar device at any time.

Specifications

Accuracy

  • ± 2.5 % of Full Scale

Ambient Temperature Range

  • -25° to 80° C (-13° to 176° F)

Applications

  • Measured Value Indication

Axle Material

  • Ceramic
  • Stainless Steel

Bearing Material

  • PTFE

BSP Connection

  • G 1" Female
  • G 1/2" Female
  • G 1/4" Female
  • G 1/8" Female
  • G 1-1/2" Female
  • G 1-1/4" Female
  • G 3/4" Female
  • G 3/8" Female

Cable Length

  • 5 feet (1.5 metres)

Connection Material

  • Brass Nickel--Plated
  • Polypropylene
  • Stainless Steel

Consumption

  • 100 mA Approximately - Current Consumption

Cover Material

  • Brass Nickel--Plated
  • Polypropylene
  • Polysulfone
  • Stainless Steel
  • Trogamide

Display

  • 2 × 8-Digit LCD Display

Electrical Connectors

  • 10-Wire Cable Connection
  • Changeover Contact - Output
  • DIN Connection

Environmental Protection

  • IP65

Flange Size - 1" (DN 25)

  • 1" (DN 25) - PN 40

Flange Size - 1/2" (DN 15)

  • 1/2" (DN 15) - PN 40

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

  • 1-1/2" (DN 40) - PN 40

Flange Size - 2" (DN 50)

  • 2" (DN 50) - PN 40

Flow Rate

  • 0.08-160 L/minute for Water

Function

  • Correction Amount
  • Fine Dosing
  • Flow Monitor
  • Language
  • Minimum/Maximum
  • Monitoring for Part
  • Password Protection
  • Reset
  • Start
  • Stop
  • Total Quantity

Indication

  • Red LED - Switching Status

Input Power

  • 3.5 W, Maximum

Loop Resistance

  • > 100 kiloohms - Load Analog Output
  • ≤ 100 Milliohms - Contact Resistance
  • 0 to 500 ohms - Analog Output

Materials of Construction

  • Brass - Locking Pins
  • POM - Vane
  • PTFE - Screen Material, Vane

Maximum System Pressure

  • psi: 1,450 (kPa: 10,000, bar: 100)

Nominal Pressure

  • psi: 580.2 (bar: 40, kPa: 4,000)

NPT Connection

  • 1" NPT Female
  • 1/2" NPT Female
  • 1/4" NPT Female
  • 1/8" NPT Female
  • 1-1/2" NPT Female
  • 1-1/4" NPT Female
  • 3/4" NPT Female
  • 3/8" NPT Female

O-Ring Material

  • FPM
  • NBR

Output

  • 0-10 Vdc - Analog Output
  • 0-20 mA Selectable - Analog Output
  • 15 mA - Maximum
  • 2 A, Maximum
  • 2.5 mW, Maximum
  • 250 V
  • 30 V, Maximum
  • 4-20 mA Selectable - Analog Output
  • 5 A

Output Format

  • Relay Output - 2 Relay: Switching Output

Power Requirement

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

Switch Type

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

Temperature Range

  • Maximum

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