Georg Fischer - Flow Meter - For Growlink NDS/NDK

Brand: Georg Fischer

Georg Fischer - Flow Meter - For Growlink NDS/NDK

Insertion paddlewheel flow sensor, glass-filled polypropylene body, DN15 to DN100 (1/2 in. to 4 in.).

The Signet 2536 Rotor-X measures volumetric flow rate, and totalized volume at the controller. Fluid spins a four-bladed rotor whose ferrite magnets induce pulses in the sensor coil; pulse frequency is linearly proportional to fluid velocity, which becomes flow rate once the pipe K-factor is applied. The P0 configuration is the glass-filled polypropylene body covering the DN15 to DN100 insertion range.

Installs inline in the main flow path, after the water inlet and before the mixing chambers. Growlink specifies a hydraulic condition that is easy to get wrong: the flow meter requires a straight run of 30 in. of pipe with no elbows directly before it, because swirl from a nearby elbow corrupts the reading. It seats into a GF custom fitting - tee, saddle or weldolet - sized to the pipe, and wires to the Nutrient Expansion Module which displays flow on the Growlink dashboard.

Key Features

• Velocity range 0.1 to 6 m/s (0.3 to 20 ft/s), 66 to 1 turndown
• Linearity plus or minus 1 percent of max range at 25 C
• Repeatability plus or minus 0.5 percent of max range at 25 C
• Output open collector, sinking, 10 mA maximum
• Frequency 49 Hz per m/s nominal (15 Hz per ft/s)
• Pipe size DN15 to DN100 (1/2 in. to 4 in.)
• Mounts in GF custom fittings - tees, saddles and weldolets
• Wetted materials glass-filled PP body, black PVDF rotor, titanium pin, FKM O-rings
• Rated 12.5 bar at 20 C (180 psi at 68 F), -18 C to 85 C (0 F to 185 F)
• Power 5 to 24 VDC regulated, under 20 mA at 6 to 24 VDC
• Cable 7.6 m (25 ft) shielded twisted pair standard, extendable to 305 m (1000 ft)
• CE, UKCA, FCC, RoHS; requires 30 in. of straight pipe upstream

Ideal Applications

• Fertigation feed line flow rate and batch volume totalizing
• Irrigation zone and distribution monitoring
• Water treatment and filtration flow verification
• Chemical and process water flow in plastic pipework