GF type 2551 Magmeter; blind version frequency or digital (S3L) output

to be installed in tube: DN15 to DN900, 0.5 to 36 inch
measuring range: 0.05 to 10 m / s, 0.15 to 33 ft / s
maximum nominal pressure: PP 10.3 bar at 25ºC, 150psi at 77F
power supply: frequency: 5 to 24 VDC, 15 mA max .; digital (S³L): 5 to 6.5 VDC, 15 mA max.
Compatible with: 8550, 8900, 9900, 9900-1BC *
only Signet installation fittings Blind 4 to 20 mA, digital / frequency, relay output
Accurate measurement, even in dirty liquids
Multilingual display menu available
Bidirectional flow Can be installed in tube diameters DN15 to DN900 (½ to 36 inch) corrosion-free materials: PP or PVDF with stainless steel, Hastelloy-C from Titanium Operating speed range 0.05 to 10 m / s (0.15 to 33 ft / s) Patented magmeter technology
No moving parts Empty pipe detection


The Signet 2551 flow meter is a magnetic flow sensor with insertion style that contains no moving parts. The patented * sensor design is available in corrosion-resistant materials to provide long-term reliability with minimal maintenance costs. Material options are PP with stainless steel, PVDF with stainless steel, PVDF with Hastelloy-C or PVDF with titanium. The use of the extensive line of Signet installation fittings, sensor alignment and insertion depth is automatic. These versatile, easy-to-install sensors deliver accurate current measurements over a wide dynamic range in pipe sizes from DN15 to DN900 (½ to 36 inches), and meet the requirements of many different applications. Signet 2551 Magmeters offer many output options of frequency / digital (S3L) or 4 to 20 mA available in 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 direct input to PLCs, card recorders, etc. Both the 4 to 20 mA output as a digital (S3L) sensor interface is available for long-distance signal transmission. An additional advantage is the empty line detection that has a zero current output when the sensors are not completely wetted. The frequency output is also bidirectional, while the 4 to 20 mA output can be set for a uni- or bi-directional current using the display or the 3-0250 USB to Digital (S3L) configuration / diagnostic set-up tool that connects to PCs for programming possibilities. In addition, the display version of the 2551 flow meter is available with relays and has permanent and resettable total values ​​that are visible on the display. The display also contains multiple languages ​​with English, Spanish, German, French, Italian and Portuguese menu options.

RoHS conform
China RoHS
NSF (3-2551-PX-XX version only)

Application areas:
chemical process industry
Landfill Leachate
Commercial Pools, Spas and Aquariums
Water and Wastewater Monitoring
Metal Recovery
Scrubber Control
Industrial Water Distribution


Process Connection
Nominal diameter
Brand Georg Fischer
Manometer diameter
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