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Type 2551 Magmeter; Blind Version
Frequency or Digital (S³L) output

The Signet 2551 Magmeter is an insertion style magnetic flow sensor that features no moving parts. The patented* sensor design is available in corrosion-resistant materials to provide long-term reliability with minimal maintenance costs. Material options include PP with stainless steel, PVDF with stainless steel, PVDF with Hastelloy-C, or PVDF with Titanium. Utilising the comprehensive line of Signet installation fittings, sensor alignment and insertion depth is automatic. These versatile, simple-to-install sensors deliver accurate flow measurement over a wide dynamic range in pipe sizes ranging from DN15 to DN900 (½ to 36 inches), satisfying the requirements of many diverse applications.

Signet 2551 Magmeters offer many output options of frequency/digital (S3L) or 4 to 20 mA which are available on both the blind and display versions. The frequency or digital (S3L) sensor output can be used with Signet's extensive line of flow instruments while the 4 to 20 mA output can be used for a direct input to PLCs, chart recorders, etc. Both the 4 to 20 mA output and digital (S3L) sensor interface is available for long distance signal transmission. An additional benefit is the empty pipe detection which features a zero flow output when the sensors are not completely wetted. Also, the frequency output is bi-directional while the 4 to 20 mA output can be set for uni- or bi-directional flow using the display or the 3-0250 USB to Digital (S3L) Configuration / Diagnostic set-up tool which connects to PCs for programming capabilities.

In addition the display version of the 2551 Magmeter is available with relays and features permanent and resettable total values which can be seen on the display. Also, the display contains multi-languages with English, Spanish, German, French, Italian and Portuguese menu options.

  • Installs into pipe sizes: DN15 to DN900, 0.5 to 36 in
  • Rosca 1 1/4" ISO. Salida frecuencia o digital (S3L)
  • Rosca 1 1/4" ISO. Salida frecuencia o digital (S3L)
  • Power Source: 
    Frequency: 5 to 24 VDC, 15 mA max.
    Digital (S³L): 5 to 6.5 VDC, 15 mA max.

  • Longitud del cable: 7,6m
  • *Only Signet installation fittings

Datos técnicos

Pipe Size
Mediciones adicionales
Archivos CAD
Add to Cart
3-2551-P0-11PP316L SS0,5 ‐ 4,0-X0Mediciones adicionalesArchivos CAD 159001105
3-2551-P1-11PP316L SS5,0 ‐ 8,0-X1Mediciones adicionales 159001106
3-2551-P2-11PP316L SS10,0 ‐ 36,0-X2Mediciones adicionales 159001107
3-2551-T0-11PVDFTitanium0,5 ‐ 4,0-X0Mediciones adicionales 159001108
3-2551-T1-11PVDFTitanium5,0 ‐ 8,0-X1Mediciones adicionales 159001109
3-2551-T2-11PVDFTitanium10,0 ‐ 36,0-X2Mediciones adicionales 159001448
3-2551-V0-11PVDFHastelloy C0,5 ‐ 4,0-X0Mediciones adicionales 159001257
3-2551-V1-11PVDFHastelloy C5,0 ‐ 8,0-X1Mediciones adicionales 159001258
3-2551-V2-11PVDFHastelloy C10,0 ‐ 36,0-X2Mediciones adicionales 159001450


Campos de aplicación:
  • Chemical Processing
  • Landfill Leachate

  • Commercial Pools, Spas and Aquariums

  • Water and Wastewater Monitoring

  • Metal Recovery

  • HVAC
  • Scrubber Control

  • Industrial Water Distribution

  • UL
  • RoHS Compliant
  • FCC
  • CE
  • CUL
  • China RoHS
  • NSF (3-2551-PX-XX version only)

  • Blind 4 to 20 mA, digital/frequency, relay output
  • Accurate measurement even in dirty liquids
  • Multi-language display menu available
  • Bi-directional flow
  • Installs into pipe sizes DN15 to DN900 (½ to 36 in.)
  • Corrosion resistant materials; PP or PVDF with SS, Hastelloy-C, or Titanium
  • Operating rate range 0.05 to 10 m/s (0.15 to 33 ft/s)

  • Patented Magmeter Technology
  • No moving parts
  • Empty pipe detection


Automation Made Easy.pdfPDF5.11 MBDescargar

2551 CE Certificate.pdfPDF195.13 KBDescargar

Signet 2551 Magmeter Flow Sensor (es).pdfPDF513.13 KBDescargar
Temperature-Pressure Graphs.pdfPDF1.94 MBDescargar
Signet 2551 Magmeter Flow Sensor (en).pdfPDF381.01 KBDescargar

Instruction Manual
2551_Flow_Sensor_spa.pdfPDF1.17 MBDescargar
Signet 2551 Blind Magmeter (en).pdfPDF1.11 MBDescargar


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