RAQN Rotameter Flow Meter

Brand: Yokogawa Electric Corporation

This type of Rotameter is designed for measurement of liquids and gases. 

The conical glass metering tube has a free rotating float. 

This float is mounted in a vertical pipeline with flow direction upwards. 

The flow is indicated by the top of the float and can be read on the standard scale of the metering tube or on a pin-on scale.
Features
  • Breaking Proof
  • Easy to Handle 
  • Highly Corrosion Resistant 
  • Low Pressure Loss 
  • Visible Monitoring of the Measured Medium 
  • Local Indication without Power Supply 
  • Selectable Scale 

Specifications

Accuracy

  • Class 4 (2.5) According VDI 3513

Approvals & Certifications

  • PTB 00-ATEX-2081 (230 Vac) & PTB 00-ATEX-2080 (24 Vdc)

Approvals & Certifications

  • Certificate of Compliance with the Order According to EN 10204: 2004- 2.1
  • Flow Table for Recalculation
  • Pressure Test Report for Measuring System

BSP Connection

  • G 1-1/2”
  • G 2”
  • G 2-3/4”

Electrical Connectors

  • LIYY 2 x 0.34 mm², 1 Meter Long - Reed Contact with Bistable Switching

Electrical Contacts

  • Reed Contact with Bistable Switching

Electrical Rating

  • 230 V / 0.6 A / 12 W/VA - Reed Contact with Bistable Switching
  • 250 Vac / 4 A / 500 VA, Max.

Enclosure, Body Material

  • Polyamide - Rotameter
  • Polystyrol - Reed Contact with Bistable Switching
  • Polysulphone - Rotameter

Environmental Protection

  • Explosion-proof: According to EN 50020, IIC 2 G T6
  • Intrinsically Safe [EEx ia] IIC According Declaration of Conformity (Control Circuit)
  • IP65

Flow Rate

  • 0.044 to 44 gpm (0.01 to 10 m³/hour) to Water at 20° C (68° F)
  • 0.7 to 1100.7 gpm (0.16 to 250 m³/hour) to Air at 20° C (68° F), 1 bar Absolute

Length

  • Metering Tube: 13.77” (350 mm)

Materials of Construction

  • 316Ti Stainless Steel - Float
  • Polypropylene - Float

Maximum System Pressure

  • psi: 145 (bar: 10, kPa: 1,000)

Power Supply

  • 115 Vac
  • 230 Vac
  • 24 Vdc

Process Connection Material

  • PVC at < 60° C (140° F) - Glue Socket & Float
  • Steel - Inner Thread Rp

Relay Output

  • 1 or 2 Potential Free Changeover Contacts

Sensor, Probe Diameter

  • 0.85” to 2.12” (21.6 to 54.1 mm)

Sensor, Probe Style

  • Float

Switch Type

  • Transistor Relay According to DIN EN 50227 (NAMUR)

Temperature Range

  • -10° to 60° C (14° to 140° F) - Max.
  • -10° to 70° C (14° to 158° F) - Reed Contact with Bistable Switching

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