Burkert Compact Flowmeter, 8025
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8025 Compact Flowmeter

Brand: Burkert Fluid Control Systems
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The flowmeter combines a paddle wheel flow sensor and an electronic module with a display in an IP65 enclosure. The electrical connection is provided via a cable plug or two cable glands (standard signal version).

The compact flowmeter is available in two versions:
  • Standard signal (4-20 mA, frequency)
  • Battery-powered indicator/totalizer

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Specifications

Brand

Accuracy

  • Measurement Deviation (Standard K-factor): ± 2.5% of Measured Value
  • Measurement Deviation (Teach-In): ± 1% of Measured Value
  • Uncertainty of Measurement (4-20 mA Output): ± 1% of Range

Ambient Temperature Range

  • 0° to 40° C (32° to 104° F)
  • Operation & Storage: -10° to 50° C (14° to 122° F) at 115/230 Vac Version
  • Operation & Storage: -10° to 55° C (14° to 131° F) (Batteries Version)
  • Operation & Storage: -10° to 60° C (14° to 140° F) at 12-36 Vdc Version

Approvals & Certifications

  • CE
  • EU
  • FDA
  • UL (C,US) - UL 61010-1 + CAN/CSA-C22.2 No.61010-1

Bearing Material

  • Ceramics (Al₂O₃)

Cable Length

  • 164 feet (50 meters), Maximum

Circuit Protection

  • Short Circuit: Protected for Transistor Outputs

Consumption

  • Current Consumption with Sensor (without Pulse Output Consumption): ≤ 25 mA (at 12 Vdc without Relays)
  • Current Consumption with Sensor (without Pulse Output Consumption): ≤ 70 mA (at 12 Vdc with Relays)

Cover Material

  • Polycarbonate (PC)

Current

  • Output: 4-20 mA (3-Wire with Relays, 2-Wire without Relay)
  • Voltage Supply Available Inside the Device (Fuse): 125 mA - Maximum

Diameter

  • External: 0.118 to 0.19" (3 to 5 mm) (with Cable Glands)
  • External: 0.19 to 0.31" (5 to 8 mm) (with Cable Plug)
  • External: 0.23 to 0.47" (6 to 12 mm) (with Cable Glands)
  • Pipe: 3/4 to 16" (DN20 to DN400)

Display

  • 15 x 60 mm, 8-Digit LCD, Alphanumeric, 15-Segments, 9 mm High
  • LED Display

Electrical Connectors

  • 0.2 to 1.5 mm² Wires Cross-section
  • Local Earthing Wire: 0.75 mm²
  • Shielded Cable
  • Standard Signal Version: Cable Glands M20 x 1.5
  • Standard Signal Version: Cable Plug

Electrical Protection

  • Voltage Peak: Protected

Enclosure, Body Material

  • Polycarbonate (PC)

Environmental Protection

  • IP65

Frequency

  • Pulse (Potential Free Transistor): 2.5 to 400 Hz

Function

  • Adjustable Pulse Value
  • Pulse Output

Gland Material

  • Polyamide (PA)

Humidity

  • ≤ 80% Relative Humidity, Non-Condensing

Linearity

  • ± 0.5% of Full Scale

Loop Impedance

  • 50 ohms at 12 Vdc, Maximum
  • 600 ohms at 24 Vdc, Maximum
  • 800 ohms with 115/230 Vac, Maximum
  • 900 Ohms at 30 Vdc, Maximum

Materials of Construction

  • Axis: Ceramics (Al₂O₃)
  • Brass
  • Front Panel Foil: Polyester
  • Lid: Polycarbonate (PC)
  • Polypropylene (PP)
  • PVC (Polyvinyl Chloride)
  • Sensor Holder, Paddle Wheel: PVDF (Polyvinylidene Fluoride)
  • Stainless Steel

Measuring Range

  • 0.3 to 10 m/sec

Nut & Bolt Material

  • Nut: Polycarbonate (PC)

Output

  • 4-20 mA, 2 & 3-Wire
  • Pulse (Potential Free Transistor): 100 mA, Line Drop at 100 mA: 2.5 Vdc
  • Pulse (Potential Free Transistor): 5-36 Vdc

Pipe Connection

  • DN25 Pipe
  • DN32 Pipe
  • DN40 Pipe
  • DN50 Pipe
  • DN65 Pipe

Plug Material

  • Cable Plug: Polyamide (PA)

Power

  • 3 VA

Power Supply

  • Battery Indicator/Totalizer Version: 4 x 1.5 Vdc Non-rechargeable Alkaline AA Batteries
  • Standard Signal Version: 115/230 Vac at 50/60 Hz
  • Standard Signal Version: 12-36 Vdc ± 10%

Pressure Range

  • bar: 0 to 10
  • kPa: 0 to 1,000
  • psi: 0 to 145

Process Temperature

  • PP: 0° to 80° C (32° to 176° F)
  • PVC: 0° to 50° C (32° to 122° F)
  • PVDF, Brass or Stainless Steel: -15° to 80° C (5° to 176° F)

Relay Output

  • 30 Vac
  • 42 V Peak, Maximum
  • 60 Vdc, Maximum
  • Standard Signal Version: 230 Vac / 3 A
  • Standard Signal Version: 40 Vdc / 3 A (Resistive Load)

Repeatability

  • ± 0.4% of the Measured Value

Response Time

  • 10 to 90%: 6 seconds

Reverse Polarity Protection

  • Yes

Screw Material

  • Stainless Steel

Seat / Seal Material

  • Seal: EPDM
  • Seal: FKM

Supply Voltage

  • 27 Vdc Regulated

Switch Type

  • Transistor (NPN or PNP)

Tri-Clamp Connection

  • DN25 Tri-Clamp®
  • DN32 Tri-Clamp®
  • DN40 Tri-Clamp®
  • DN50 Tri-Clamp®
  • DN65 Tri-Clamp®

Viscosity

  • 300 cSt, Maximum

Welded Connection

  • 1" (DN25) Weld End
  • 1-1/2" (DN40) Weld End
  • 1-1/4" (DN32) Weld End
  • 2" (DN50) Weld End
  • 2-1/2" (DN65) Weld End

Documentation

Data Sheets

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