Signet 2537 Paddlewheel Flow Sensor

Description

Signet 2537 Paddlewheel Flow Sensor utilizes the same fittings as the popular Signet 515 and 2536 Paddlewheel Sensors and fits into pipe sizes ranging from DN15 to DN200 (½ to 8 in.). Available in Polypropylene and PVDF, it is ideal for a variety of applications including chemical processing, water and wastewater monitoring and scrubber control.

Signet 2537 Paddlewheel Flow Sensor Features

Digital (S3L) or 4 to 20 mA outputs or (Multi-function)
Allows for up to six sensors to Signet 8900 Multi-Parameter Controller
Low fl ow capabilities down to 0.1 m/s (0.3 ft/s)
Polypropylene or PVDF sensor bodies
Polypropylene and PVDF retaining nuts standard, Valox optional
Installs into pipe sizes DN15 to DN200 (½ to 8 in.)
Test certificate included for -X0, -X1
Low power and high resolution

Applications

Process Flow Monitoring
Pump Protection
Pure Water Production
Filtration Systems
Chemical Production
Reverse Osmosis
Demineralization/Regeneration
Fume Scrubbers
Cooling Towers
Proportional Metering Pump

Signet 2537 Paddlewheel Flow Sensor Specification

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 (S³L)	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 (S³L) 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 ? @ 24 VDC	1 K? @ 32 VDC
	Load Impedance	375 ?
Reverse Polarity and Short Circuit Protected		Up to 40 V, 1 hour
Over-voltage Protection		> 40 VDC over 1 hour