Signet 3-2552-21-A-11 Flow Sensors

Signet 3-2552-XX-X-1X Paddlewheel Flow Sensors

3-2552-XX-X-1X Metal Magmeter Flow Sensor

Item#: 159001513 | Model#: 3-2552-21-A-11 | Series#: 3-2552-XX-X-1X

Price: $217500 $200128

Availability: Ships within 2 to 3 weeks
$217500 $200128 /ea

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2552 Metal Magmeter Flow Sensor

The Signet 2552 Metal Magmeter features all-stainless steel construction. The PVDF nosepiece and FPM O-rings are the only other wetted materials. The 2552 installs quickly into standard ISO 7-R 1¼ or ISO 7-R 1½ (1¼ in. to 1½ in. NPT) pipe outlets, and is adjustable to fit pipes from DN50 to DN2550 (2 to 102 in.). Two sensor lengths allow maximum flexibility to accommodate a variety of hardware configurations, including ball valves for hot-tap installations. When equipped with the frequency output, the 2552 is compatible with any Signet flow instrument, while the Digital (S3L) output enables multi-channel compatibility with the Signet 8900 Multi-Parameter Flow Controller. Select the blind 4 to 20 mA current output to interface directly with dataloggers, PLCs or telemetry systems. Key features include empty pipe detection, LED-assisted troubleshooting, and bi-directional span capability (in 4 to 20 mA models). The Signet 3-0250 USB to Digital (S3L) Configuration/Diagnostic Tool is available to customize every performance feature in the 2552 so that it can be adapted to the user's application requirements.

Fields of Application:
  • Municipal Water Distribution
  • Process and Coolant Flow
  • Chemical Processing
  • Wastewater
  • Mining Applications
  • Water Process Flow
  • HVAC
  • CE
  • FCC
  • RoHS compliant
  • China RoHS
  • NIST test certificate included
  • Award-winning hot-tapable magnetic flow sensor up to DN2550 (102 in.)
  • Operating range: 0.05 to 10 m/s (0.15 to 33 ft/s)
  • Reliable operation in harsh environments
  • Three output choices: frequency, digital (S3L), or 4 to 20 mA
  • Patented Magmeter technology
  • Repeatable: ±0.5% of reading @25ºC
  • ISO or NPT Threads
3-2552-21-A-11 Product Specific Data
Mounting Depth OptionsSensor insertion depth = 9.3 inches*
Process Connection Options1¼ inch NPT process connection threads**
Cable and Connector OptionsFixed Cable, 7.6 m (25 ft); no connector
Output OptionsFrequency or Digital (S3 L); for use with any Signet Flow Instrument or the 8900 Multi-Parameter Controller
Series Data
Operating Range Operating Range Minimum 0.05 m/s 0.15 ft/s0.05 m/s - 0.15 ft/s
Operating Range Maximum pipes to DN1200 (48 in.)10 m/s - 33 ft/s
Operating Range Maximum pipes over DN1200 (48 in.)3 m/s - 10 ft/s
Pipe Size Range DN50 to DN25502 in. to 102 in.
Linearity±1% of reading plus 0.1% of full scale
Repeatability±0.5% of reading @ 25 °C
Accuracy±2% of measured value*
Minimum Conductivity20 μs/cm
Body and Electrodes316L stainless steel
Cable4-cond + shield, PVC jacket (Fixed cable models) or Water-resistant rubber cable assembly with Turck® NEMA 6P connector
4 to 20 mA24 VDC ±10%, regulated, 22.1 mA maximum
Frequency24 VDC ±10%, regulated, 22.1 mA maximum
Digital (S3L)5 to 6.5 VDC 15 mA maximum
Fixed cable7.6 m - 25 ft
Current Output (4 to 20 mA) Loop Accuracy32 μA max. error (@ 25 °C @ 24 VDC)
32 μA max. error (@ 25 °C @ 24 VDC) Temperature Drift±1 μA per °C max.
32 μA max. error (@ 25 °C @ 24 VDC) Power Supply Rejection±1 μA per V
32 μA max. error (@ 25 °C @ 24 VDC) IsolationLow voltage < 48 VAC/DC from electrodes and auxiliary power
32 μA max. error (@ 25 °C @ 24 VDC) Maximum Cable300 m - 1000 ft
32 μA max. error (@ 25 °C @ 24 VDC) Max. Loop Resistance300 Ω
32 μA max. error (@ 25 °C @ 24 VDC) Error Condition22.1 mA
Frequency Output Compatible withSignet 8550, 8900, 9900 and 9900-1BC
Frequency Output Max. Pull-up Voltage30 VDC
Frequency Output Short Circuit Protected≤30 V @ 0 Ω pull-up for one hour
Frequency Output Reverse Polarity Protectedto -40 V for 1 hour
Frequency OutputOver-voltage Protected to +40 V for 1 hour
Frequency Output Max. Current Sink50 mA, current limited
Frequency Output Maximum Cable300 m - 1,000 ft
Digital (S3L) Output Compatible withSignet 8900 and 9900
Digital (S3L) OutputSerial ASCII, TTL level 9600 bps
Digital (S3L) Output Maximum CableApplication dependent (See 8900 manual) in non-icing conditions
Operating Temp Ambient (non-icing conditions)-15 °C to 70 °C - 5 °F to 158 °F
Operating Temp Media-15 °C to 85 °C - 5 °F to 185 °F
Max. Operating Pressure20.7 bar @ 25 °C - 300 psi @ 77 °F
Maximum Installation Pressure20.7 bar 300 psi
Maximum Installation Temp (Insertion/Removal)40 °C 104 °F
Shipping Weights 3-2552-2X-A-11/A-122.50 kg - 5.51 lb
Shipping Weights2.30 kg - 5.07 lb
Shipping Weights4.00 kg - 8.81 lb
Standards and ApprovalsCE, FCC
Standards and ApprovalsRoHS compliant, China RoHS
Standards and Approvals NEMA 4 (IP65)Fixed cable models
Standards and Approvals NEMA 6P (IP68)Submersible cable models only. Signet recommends maximum 3 m (10 ft) submersion depth for maximum 10 days continuous submersion.
Standards and ApprovalsManufactured under ISO 9001 for Quality and ISO 14001 for Environmental Management and OHSAS 18001 for Occupational Health and Safety
Product Dimensions
Weight5.50 lb
Width110.00 mm, 4.33 in
Height110.00 mm, 4.33 in
Length490.00 mm, 19.29 in
Document TitleDownload
CertificatesClick Here to Download
DatasheetsClick Here to Download
IDShort DetailsPrice 
2120-15121.5in x 1.25in NPT adapter for retrofitting 2540$60.00
2120-20122in x 1.25in NPT adapter for retrofitting 2550$60.00
3-0250USP to S3L configuration/diagnostic tool  
3-2552.3921.25in NPT full port stainless steel ball valve and nipple kit$582.00
3-2552.3931.25in NPT full port brass ball valve and nipple kit$291.00
3-2552.3941.5in NPT conduit adapter, aluminum$81.00
4301-21251.25in NPT full port brass ball valve$239.00
4301-31251.25in NPT full port stainless steel ball valve$529.00
5541-41844-conductor cable with water-tight connector, 13ft cable$146.00$80.30
5541-41864-conductor cable with water-tight connector, 19.5ft cable$194.00




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