Signet 515 Rotor-X Paddlewheel Flow Sensor

Simple to install with time-honored reliable performance, Signet Model 515 Rotor-X Paddlewheel Flow Sensors are highly repeatable, rugged sensors that offer exceptional value with little or no maintenance. The wide dynamic flow range of 0.3 to 6 m/s (1 to 20 ft/s) allows the sensor to measure liquid flow rates in full pipes and can be used in low pressure systems.

Fields of Application:

  • Pure Water Production
  • Filtration Systems
  • Chemical Production
  • Liquid Delivery Systems
  • Pump Protection
  • Scrubber Systems
  • Water Monitoring
  • Not suitable for gases

Advantages:

  • Wide turndown ratio of 20:1
  • Highly repeatable output
  • Simple, economical design
  • Installs into pipe sizes DN15 to DN900
  • Self-powered/no external power required
  • Test certificate included for -X0, -X1
  • Chemically-resistant materials

Specification

General
Operating Range 0.3 to 6 m/s 1 to 20 ft/s
Pipe Size Range DN15 to DN900 ½ to 36 in.
  Linearity ±1% of max. range @ 25 °C (77 °F)
Repeatability ±0.5% of max. range @ 25 °C (77 °F)
Min. Reynolds Number Required 4500
Wetted Materials
Sensor Body Glass-fi lled PP (black) or PVDF (natural)
O-rings FKM (std), optional EPR (EPDM) or FFKM
Rotor Pin Titanium, Hastelloy-C or PVDF; optional Ceramic, Tantalum, or Stainless Steel
Rotor Black PVDF or Natural PVDF; optional ETFE, with or without carbon fi ber reinforced PTFE sleeve
Electrical
Frequency 19.7 Hz per m/s nominal 6 Hz per ft/s sinusoidal
Amplitude 3.3 V p/p per m/s nominal 1 V p/p per ft/s
Source Impedance 8 KΩ
Cable Type 2-conductor twisted pair with shield, 22 AWG
Cable Length 7.6 m (25 ft) can be extended up to 60 m (200 ft) maximum
Max. Temperature/Pressure Rating – Standard and Integral Sensor
PP 12.5 bar @ 20 °C 181 psi @ 68 °F
1.7 bar @ 90 °C 25 psi @ 194 °F
PVDF 14 bar @ 20 °C 203 psi @ 68 °F
1.4 bar @ 100 °C 20 psi @ 212 °F
Operating Temperature
PP -18 °C to 90 °C 0°F to 194 °F
PVDF -18 °C to 100 °C 0 °F to 212 °F
Max. Temperature/Pressure Rating – Wet-Tap Sensor
PP 7 bar @ 20 °C 102 psi @ 68 °F
1.4 bar @ 66 °C 20 psi @ 150 °F
Operating Temperature
  -18 °C to 66 °C 0 °F to 150 °F
Max. Wet-Tap Sensor Removal Rating
M 1.7 bar @ 22 °C 25 psi @ 72 °F
Standards and Approvals
RoHS compliant, China RoHS
Lloyd’s Register Type Approval , NSF (P51530-PX version only)
Manufactured under ISO 9001 for Quality and ISO 14001 for Environmental Management and OHSAS 18001 for Occupational Health and Safety

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