Flow Meters and Level Sensors • Paddle Wheel Flow Meters
Stainless Steel High Performance Paddlewheel Flow
Sensor 2540 Series Description
The Signet 2540 Paddlewheel Flow Sensor offers the strength and corrosion resistance of stainless steel for liquid applications with low velocity measurements. Unique internal circuitry eliminates the need for magnets in the process fluid, enabling flow measurement of 0.1 to 6 m/s (0.3 to 20 ft/s) while maintaining the advantages of insertion sensor design. Rulon®
B (Fluoroloy B/PTFE) E
bearings and Tungsten Carbide pin provide exceptional wear resistance. The Signet 2540 offers field replaceable electronics and transient voltage suppression (TVS) to provide greater immunity to large voltage disturbances (i.e. lightning) sometimes encountered in field wiring. Sensors can be installed in DN40 to DN600 (1½ to 24 inch) pipes using the 1½ inch or ISO 7/1- R 1.5 threaded process connection. The sensors are also offered in a hot-tap configuration with a bleed valve service without process shutdown in pipes up to DN900 (36 in.). Both styles of sensors must be used in full pipes and can be used in low pressure systems.
• Operating range 0.1 to 6 m/s (0.3 to 20 ft/s) • Field replaceable electronics • Non-magnetic RF detection • Standard NPT or ISO process connections
• HVAC • Turf Irrigation • Cooling Systems • Filtration Systems • Water Distribution
BuiLD a part nuMBer table 1
table 1 3-2540
table 2 -1 -2 -3 -4
table 2 -X
table 3 -X
sensor part number
Stainless Steel High Performance flow sensor with removable electronics
Mounting option - choose one 1½ inch NPT thread 1½ inch ISO thread
1½ inch NPT thread, Hot-Tap design* 1½ inch ISO thread, Hot-Tap design*
*Must use 3-1500.663 Hot-Tap installation tool (ordered separately)
table 3 -
rotor pin Material Tungsten Carbide Stainless Steel
Model 2540 Ordering Notes Installation fittings and Hot-Tap valves are customer supplied.
• For systems with components of more than one material, the maximum temperature/pressure specification must always be referenced to the com ponent with the lowest rating. • Use the Conduit Adapter Kit to protect the cable-to-sensor connection when used in outdoor environments.
• Sensor electronics can be easily replaced by 3-2541.260-1 or 3-2541.260-2.
Call us for product sizing and selection assistance.