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R-25 Transmitter with Explosion-Proof Enclosure

Brand: Niagara Meters

Transmits a high frequency scaled electrical pulse signal for each discrete unit of liquid volume metered. 

Transmitter is magnetically coupled to the meter shaft and uses an optical encoder for CW or CCW shaft rotation.

1 - 1 of 1 Part Numbers
R-25
R-25
  • Engineering Units - Gallons
  • Register Extension - Without Register Extension
1 - 1 of 1 Part Numbers

Specifications

Consumption

  • Power Consumption: 0.375 W at 15 Vdc

Disc Material

  • Nutating Disc: Bronze
  • Nutating Disc: Epoxy Coated Cast Iron

Electrical - Free Leads

  • Signal Wiring: 18 Gauge 3 or 4-Conductor Shielded

Electrical Connectors

  • 1/2” NPT Female

Enclosure, Body Material

  • Aluminum

Environmental Protection

  • Explosion-proof
  • Watertight

Flow Rate

  • Nutating Disc: 0.5 to 160 gpm
  • Oscillating Piston: 7 to 150 gpm

K-Factor

  • Nutating Disc: 42 to 17,316 Pulses/Gallon
  • Oscillating Piston: 64 to 3,688 Pulses/Gallon

Mounting Position

  • Horizontal
  • Top

Operation

  • Magnetically Coupled Drive

Output

  • Ouput Signal: 12-15 Vdc
  • Ouput Signal: 70 µs Square Pulse Nominal at 15 Vdc

Piston Material

  • Oscillating Piston: Stainless Steel

Power Supply

  • 12-24 Vdc

Ratio

  • Nutating Disc - 256:1
  • Oscillating Piston - 125:1

Size

  • Nutating Disc: 1” to 4” (25 to 100 mm) Bronze
  • Nutating Disc: 3/4” to 2-1/2” (19.05 to 63.5 mm) Epoxy Coated Cast Iron
  • Oscillating Piston: 1” (25.4 mm) Stainless Steel
  • Oscillating Piston: 2” (50 mm) Stainless Steel
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