GF Signet 2537 Paddlewheel Flowmeter
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The GF Signet 2537 Paddlewheel Flowmeter by Georg Fischer delivers cutting-edge flow measurement for pipe sizes DN15 to DN200 (½ to 8 in.). With low-flow capabilities down to 0.1 m/s (0.3 ft/s) and versatile outputs like 4-20 mA, Digital (S³L), or Pulse, this sensor is perfect for chemical processing, metal finishing, water treatment, and industrial applications.
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OVERVIEW
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SPECIFICATIONS
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MODEL NUMBERS
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REPLACEMENT PARTS
Manufacturer: Georg Fischer (GF Signet)
Product Type: Paddlewheel Flowmeter
Applications: Chemical processing, metal finishing, water treatment, wastewater monitoring, scrubber control
Flow Range: 0.1 to 6 m/s (0.3 to 20 ft/s)
Design Features:
- Low-flow, low-power, high-resolution performance
- Multiple output options: 4-20 mA, Digital (S³L), Pulse/Flow Switch
- Built-in user interface for onsite configuration
- Compatible with Signet 515/2536 fittings
Pipe Size Range: 0.75 to 6 inches (d22 to d180)
Operating Temperature: -10°C to 85°C (14°F to 185°F)
Accuracy: ±3% of measured value (within velocity range)
Power Supply: 12-24 VAC/DC
Protection Rating: IP54
Housing Material: Polycarbonate
Minimum Conductivity: Not applicable (ultrasonic, non-invasive)
DN15 to DN100 – ½ to 4 in.
Polypropylene body, black Polypropylene retaining nut, black PVDF rotor, Titanium pin, FPM O-rings
| Mfr. Part No. | Code | Output |
|---|---|---|
| 3-2537-1C-P0 | 159 001 291 | Pulse/Flow Switch DCR |
| 3-2537-2C-P0 | 159 001 292 | Pulse/Flow Switch SSR |
| 3-2537-5C-P0 | 159 001 295 | Digital (S3 L) |
| 3-2537-6C-P0 | 159 001 296 | 4 to 20 mA |
Natural PVDF body, Natural PVDF retaining nut, rotor and pin, FPM O-rings
| Mfr. Part No. | Code | Output |
|---|---|---|
| 3-2537-1C-T0 | 159 001 315 | Pulse/Flow Switch DCR |
| 3-2537-2C-T0 | 159 001 316 | Pulse/Flow Switch SSR |
| 3-2537-5C-T0 | 159 001 319 | Digital (S3 L) |
| 3-2537-6C-T0 | 159 001 320 | 4 to 20 mA |
DN125 to DN200 – 5 to 8 in.*
Polypropylene body, black Polypropylene retaining nut, black PVDF rotor, Titanium pin, FPM O-rings
| Mfr. Part No. | Code | Output |
|---|---|---|
| 3-2537-1C-P1 | 159 001 303 | Pulse/Flow Switch DCR |
| 3-2537-2C-P1 | 159 001 304 | Pulse/Flow Switch SSR |
| 3-2537-5C-P1 | 159 001 307 | Digital (S3 L) |
| 3-2537-6C-P1 | 159 001 308 | 4 to 20 mA |
| Mfr. Part No. | Code | Description |
|---|---|---|
| 3-2536.320-1 | 198 820 052 | Rotor, PVDF Black |
| 3-2536.320-2 | 159 000 272 | Rotor, PVDF Natural |
| 3-2536.320-3 | 159 000 273 | Rotor, ETFE |
| 3-2536.322-1 | 198 820 056 | Sleeved rotor, PVDF Black |
| 3-2536.322-2 | 198 820 057 | Sleeved rotor, PVDF Natural |
| 3-2536.322-3 | 198 820 058 | Sleeved rotor, ETFE |
| M1546-1 | 198 801 182 | Pin, Titanium |
| M1546-2 | 198 801 183 | Pin, Hastelloy-C |
| M1546-3 | 198 820 014 | Pin, Tantalum |
| M1546-4 | 198 820 015 | Pin, Stainless Steel |
| P51545 | 198 820 016 | Pin, Ceramic |
| 1220-0021 | 198 801 186 | O-ring, FPM (2 required per sensor) |
| 1224-0021 | 198 820 006 | O-ring, EPR (EPDM) (2 required per sensor) |
| 1228-0021 | 198 820 007 | O-ring, FFPM (2 required per sensor) |
| P31536 | 198 840 201 | Sensor plug, Polypropylene |
| 3-2536.321 | 198 820 054 | PVDF Natural, Rotor kit |
| 3-8050.391 | 159 001 703 | Retaining Nut Replacement Kit, NPT, Stainless Steel |
| 3-8050.390-1 | 159 001 702 | Retaining Nut Replacement Kit, NPT, Valox |
| 3-8050.390-3 | 159 310 116 | Retaining Nut Replacement Kit, NPT, PP |
| 3-8050.390-4 | 159 310 117 | Retaining Nut Replacement Kit, NPT, PVDF |
| 3-8050.396 | 159 000 617 | RC Filter kit (for relay use) |
| 3-9000.392-1 | 159 000 839 | Liquid tight connector kit, NPT (1 piece) |
| 3-9000.392-2 | 159 000 841 | Liquid tight connector kit, PG13.5 (1 piece) |
| 7310-1024 | 159 873 004 | 24 VDC Power Supply, 10W, 0.42 A |
| 7310-2024 | 159 873 005 | 24 VDC Power Supply, 24W, 1.0 A |
| 7310-4024 | 159 873 006 | 24 VDC Power Supply, 40W, 1.7 A |
| 7310-6024 | 159 873 007 | 24 VDC Power Supply, 60W, 2.5 A |
| 7310-7024 | 159 873 008 | 24 VDC Power Supply, 96W, 4.0 A |