Description Magmeter Flow Sensor | 2551 Specifications General Operating Range 0.05 to 10 m/s 0.15 to 33 ft/s Pipe Size Range DN15 to DN900 ½ in. to 36 in. Linearity ± 1% reading plus 0.1% of full scale Repeatability ±0.5% of reading @ 25 °C (77 °F) Minimum Conductivity 20 μS/cm Wetted Materials Sensor Body/Electrodes and Grounding Ring -P0, -P1, -P2: PP/316L SS -T0, -T1, -T2: PVDF/Titanium -V0, -V1, -V2: PVDF/Hastelloy-C O-rings FKM (standard) EPR (EPDM), FFKM (optional) Case PBT Display Window Polyamide (transparent nylon) Protection Rating NEMA 4X/IP65 Electrical Power Requirements 4 to 20 mA 24 VDC ±10%, regulated, 22.1 mA max. Frequency 5 to 24 VDC ±10%, regulated, 15 mA max. Digital (S3L) 5 to 6.5 VDC, 15 mA max. Auxiliary (only required for units with relays) 9 to 24 VDC, 0.4 A max. Reverse Polarity and Short Circuit Protected Current Output 4 to 20 mA Loop Accuracy 32 μA max. error (25 °C @ 24 VDC) Isolation Low voltage < 48 VAC/DC from electrodes and auxiliary power Maximum Cable 300 m (1000 ft) Error condition 22.1 mA Max. Loop Resistance 300 Ω Compatible with PLC, PC or similar equipment 4 to 20 mA load needed Frequency Output Output Modes Freq., or Mirror Relay (display version only) Max. Pull-up Voltage 30 VDC Max. Current Sink 50 mA, current limited Maximum Cable 300 m (1000 ft) Compatible with Georg Fischer Model 8550, 8900, 9900, 9900-1BC, 9950 Digital (S3L) Output Serial ASCII, TTL level 9600 bps Compatible with Model Georg Fischer 8900 controller, 9900, 9950, 0486 Profibus Concentrator Relay Specifications #1, #2 Type Mechanical SPDT Rating 5 A @ 30 VDC max., 5 A @ 250 VDC max. #3 Type Solid State 50 mA @ 30 VDC, 50 mA @ 42 VAC Hysteresis User adjustable for exiting alarm condition Alarm On Trigger Delay Adjustable (0 to 9999.9 sec.) Relay Modes Off, Low, High, Window, and Proportional Pulse Relay Source Flow Rate, Resettable Totalizer Error Condition Selectable; Fail Open or Closed Display Characters 2 x 16 Contrast User-set in four levels Backlighting (only on relay versions) Requires external 9-24 VDC, 0.4 mA max. Max. Temperature/Pressure Rating Storage Temperature -20 °C to 70 °C -4 °F to 158 °F Relative Humidity 0 to 95% (non-condensing) Operating Temperature Ambient -10 °C to 70 °C 14 °F to 158 °F Media 0 °C to 85 °C 32 °F to 185 °F Maximum Operating Pressure 10.3 bar @ 25 °C 150 psi @ 77 °F 1.4 bar @ 85 °C 20 psi @ 185 °F Shipping Weight 0.680 kg 1.50 lb Standards and Approvals CE, FCC, UL, CUL, NSF (3-2551-PX-XX version only) RoHS compliant, China RoHS NEMA 4X / IP65 Enclosure (with cap installed) Manufactured under ISO 9001 for Quality and ISO 14001 for Environmental Management and OHSAS 18001 for Occupational Health and Safety Magmeter Flow Sensor | 2551
