Paddlewheel Flow Sensors – Parameter Comparison

Parameter Comparison Table

Acceptable fluid Flow velocity (m/s) Output Pipe size range mm (in) Linearity Sensor body Rotor material Fluid temperature (°C) Max operating pressure (bar) ATEX approval
IC LPM Paddle Wheel Flow Meters Liquid none mV, 4-20 mA, pulse, relays 15 – 50 ± 0.5% FSD 304 stainless steel (standard)316 (optional) 431 stainless steel 350 max 100 Yes
Paddle Wheel Flow Sensor Signet 515 Rotor X Liquid 0.3 – 6.0 AC frequency 15 – 900(0.5 – 36) ± 1% PP or PVDF PVDF or Tefzel -18 – +100 14 No
Paddle Wheel Flow Sensor Signet 2536 Rotor X Liquid 0.1 – 6.0 Open collector 15 – 900(0.5 – 36) ± 1% PP or PVDF PVDF or Tefzel 18 – +85 14 No
Paddle Wheel Flow Sensor Signet 2537 Rotor X Liquid 0.1 – 6.0 Open collector, 4 to 20mA, digital (S3L) 15 – 200(0.5 – 8.0) ± 1% PP or PVDF PVDF or Tefzel 85 max 12.5 No
Paddle Wheel Flow Sensor Signet 525 Metalex Liquid 0.5 – 6.0 AC frequency 15 – 300(0.5 – 12.0) ± 1% 316 SS CB7cU-1 66 103 No
Paddle Wheel Flow Sensor Signet 2540 Stainless Steel Liquid 0.1 – 7.0 Open collector 40 – 900(1.5 – 36.0) ± 1% 316 SS CD4MCu SS 100 17 No

The data above is intended as a guide for selection. Please check datasheets before specifying

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