+GF+ 3-2536-P0 Signet Paddlewheel Flow Sensor Precise Reliable Low-Flow Measurement

In the world of industrial process instrumentation, the +GF+ 3-2536-P0 stands as a benchmark for rugged, accurate, and maintenance-free flow measurement. As part of the globally recognized Signet product line by Georg Fischer, this paddlewheel flow sensor is engineered to deliver exceptional performance in low-flow applications, making it a preferred choice for water treatment, chemical processing, and general industrial fluid monitoring .

What is the +GF+ 3-2536-P0?

The +GF+ 3-2536-P0 is a standard insertion-style paddlewheel flow sensor designed for pipes ranging from DN15 to DN100 (½ to 4 inches) . It is specifically optimized for measuring the flow rate of clean, debris-free liquids in full-pipe, low-pressure systems . Time-tested and proven across decades of industrial use, the 2536 series is celebrated for its simple installation, robust construction, and highly repeatable output signals with minimal maintenance requirements .

The "P0" designation within the part number 3-2536-P0 indicates a specific material configuration: a PP (Polypropylene) body with a black PVDF rotor and a Titanium shaft, making it suitable for a vast range of chemical compatibility .

Key Technical Specifications (Specs)

Verified through multiple distributor datasheets and technical resources, the core specifications of the 3-2536-P0 include :

Manufacturer: +GF+ / Georg Fischer Signet

Part Number: 3-2536-P0

Type: Insertion Paddlewheel Flow Sensor

Flow Range: 0.1 to 6 m/s (0.33 to 20 ft/s) 

Pipe Size Compatibility: DN15 to DN100 (½ to 4 inches) 

Linearity: ±1% of full scale @ 25°C 

Repeatability: ±0.5% of full scale @ 25°C 

Output Signal: Square wave, open-collector NPN 

Frequency Output: 49 Hz per m/s (nominal) 

Supply Voltage: 5 to 24 VDC ±10%, regulated 

Supply Current: < 1.5 mA @ 3.3 to 6 VDC; <20 mA @ 6 to 24 VDC 

Maximum Pull-Down Current: 10 mA 

Cable: 7.6 m (25 ft) integrated twisted pair with shield (22 AWG); extendable up to 305 m (1000 ft) 

Materials (3-2536-P0):

Body/Wetted Insert: PP-GF (Polypropylene) 

Rotor: PVDF (black) 

Shaft: Titanium 

O-Ring: FPM (Fluoroelastomer) 

Maximum Temperature/Pressure (PP Body): 12.5 bar @ 20°C (181 psi @ 68°F); 1.7 bar @ 85°C (24.6 psi @ 185°F) 

Certifications: CE, RoHS; manufactured under ISO 9001 and ISO 14001 certified facilities