Description Flow Meter Paddlewheel | 2537 Specifications General Operating Range 0.1 to 6 m/s 0.3 to 20 ft/s Pipe Size Range DN15 to DN200 ½ to 8 in. Linearity ±1% of max. range @ 25 °C (77 °F) Repeatability ±0.5% of max. range @ 25 °C (77 °F) System Response 100 ms update rate nominal Wetted Materials Sensor Body Glass-filled 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 w/o carbon fiber reinforced PTFE sleeve for rotor pin Electrical Multi With Dry Contact Relay 24 VDC nominal, ±10%, regulated, 30 mA max current With Solid State Relay 6 V to 24 VDC, ±10%, regulated, 30 mA max current Digital (S3 L) 5.0 VDC min to 6.5 VDC max., 30 mA max current (1.5 mA nominal) 4 to 20 mA 400 mV max ripple voltage, 30 mA max current Maximum Pulse Rate 300 Hz Maximum Pulse Width 50 ms Minimum Pulse Rate 0.5 Hz Compatible with PLC, PC or similar equipment Compatible with customer supplied metering pump Digital (S3 L) Version 5 VDC nominal, regulated, 3 mA max current Type Serial ASCII, TTL level 9600 bps Maximum Cable Length Refer to Signet 8900 wiring specifications. Compatible with Model Signet 8900, 9900 and 9950 4 to 20 mA Version 12 to 32 VDC nominal, ±10%, regulated, 21 mA max current Loop Accuracy ±32 µA @ 25 °C @ 24 VDC) Loop Resolution 5 µA Temperature Drift ±1µA per °C max. Power Supply Rejection ±1µA per V Maximum Cable 305 m; 1000 ft Maximum Loop Resistance 600 Ω @ 24 VDC ; 1 KΩ @ 32 VDC Load Impedance 375 Ω Reverse Polarity and Short Circuit Protected Up to 40 V, 1 hour Over-voltage Protection > 40 VDC over 1 hour Relay Specifications Mechanical SPDT 5 A @ 30 VDC, 5 A @ 250 VAC Solid State Relay 100 mA @ 40 VDC, 70 mA @ 33 VAC Relay Modes Low, High Time Delay 0.0 to 6400.0 seconds Hysteresis Adjustable for exiting alarm condition Max.Temperature/Pressure Rating Storage Temperature -10 °C to 75 °C 14 °F to 167 °F Operating Temperature 0 °C to 65 °C 32 °F to 149 °F Relative Humidity 0 to 90%, non-condensing Flow Sensor/ Retaining Nut PP 12.5 bar @ 20 °C 181 psi @ 68 °F 1.7 bar @ 85 °C 25 psi @185 °F PVDF 14 bar @ 20 °C 203 psi @ 68 °F 1.7 bar @ 85 °C 25 psi @ 185 °F Operating Temperature PP -18 °C to 85 °C 0 °F to 185 °F PVDF -18 °C to 85 °C 0 °F to 185 °F Environmental Enclosure NEMA 4X/IP65 Shipping Weight 0.640 kg Standards and Approvals CE, FCC, UL, NSF (3-2537-XC-PX version only) RoHS compliant, China RoHS Manufactured under ISO 9001 for Quality and ISO 14001 for Environmental Management and OHSAS 18001 for Occupational Health and Safety Flow Meter Paddlewheel | 2537
