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Troubleshooting with the RED and BLUE LEDs <br />Both Off: The power is off or the sensor is not connected. _ <br />Solid Blue: <br />The power is on, the pipe is full, but there is no flow in the pipe. -_ <br />Blinking Blue: Normal operation, blink rate is proportional to the flow rate. ` <br />AlternatingRed-Blue: Empty pipe indication (electrodes are not wet). <br />PYPP <br />BlinkingRed: �� <br />System errors (electrical noise interference). _ _— "®7 <br />Solid Red: instrument error (defective electronics component). <br />D6 <br />If the 2551 detects an empty pipe: <br />Frequency output will be locked to 0 Hz if electrodes are not wet. - F <br />• Digital (S3 L) output will be locked to 0 if electrodes are not wet. <br />4 to 20 mA will be !ocked to 4 mA if electrodes are not wet. _— <br />• Blue and red LEDs will blink alternately if electrodes are not wet_ <br />If the 2551 detects REVERSE FLOW: -' <br />• Frequency out cannot distinguish reverse flow from forward flow. The output will be the absolute value. <br />• With Digital (S3 L) output, reverse flow results in 0 flow rate displayed on 8900 or with negative numbers on the 9900. <br />• 4-20 mA output can be spanned into negative flow range using the 3-0250 USB Setup Tool and software. <br />(Page 7) (example: 4-20 mA = —100 to +100 GPM). <br />Accessories and Replacement Parts <br />Mfr. Part No. <br />Code <br />Description <br />O -Rings <br />1220-0021 <br />198 801 000 <br />O-ring, FPM (2 required per sensor) <br />1224-0021 <br />198 820 006 <br />O-ring, EPR (EPDM) (2 required per sensor) <br />1228-0021 <br />198 J20 J07 <br />O-ring, FFPM (2 required Far sensor) <br />Replacement Transducers <br />3 -2551 -PO <br />159 001 211 <br />PP/316L SS, DN15 to DN100 (1/2 to 4 in.) pipe <br />3-2551-P1 <br />159 001 212 <br />PP/316L SS, DN125 to DN200 (5 to 8 in.) pipe <br />3-2551-P2 <br />159 001 444 <br />PP/316L SS, DN250 to DN900 (10 to 36 in.) pipe <br />3-2551 JO <br />159 001 213 <br />PVDFMtanium, DN15 to DN100 (Y2 to 4 in.) pipe <br />3-2551-T1 <br />159 001 214 <br />PVDFfT-itanium, DN125 to DN200 (5 to 8 in.) pipe <br />3-2551-T2 <br />159 001 445 <br />PVDFMtanium, DN250 to DN900 (10 to 36 in.) pipe <br />3 -2551 -VO <br />159 001 376 <br />PVDF/Hastelloy-C, DN 15 to DN 100 (Yz to 4 in.) pipe <br />3-2551-V1 <br />159 001 377 <br />PVDF/Hastelloy-C, DN125 to DN200 (5 to 8 in.) pipe <br />3-2551-V2 <br />159 001 446 <br />PVDF/Hastelloy-C, DN250 to DN900 (10 to 36 in.) pipe <br />Replacement <br />Electronics Module <br />3-2551-11 <br />159 001 215 <br />Magmeter electronics, frequency or digital (S3 L) output <br />3-2551-12 <br />159 001 216 <br />Magmeter electronics, 4 to 20 mA output <br />3-2551-21 <br />159 001 372 <br />Magmeter display electronics, frequency or digital (S3L) output, with relays <br />3-2551-22 <br />159 001 373 <br />Magmeter display electronics, 4 to 20 mA output w/relays <br />3-2551-41 <br />159 001 374 <br />Magmeter display electronics, frequency or digital (S3L) output <br />3-2551-42 <br />159 001 375 <br />Magmeter display electronics, 4 to 20 mA output <br />Other <br />P31538 <br />198 840 201 <br />sensor plug, Polypropylene <br />7310-1024 <br />159 873 004 <br />24 VDC Power Supply, 0.42 A, 1 OW <br />7310-2024 <br />159 873 005 <br />24 VDC Power Supply, 1.0 A, 24W <br />7310-4024 <br />159 873 006 <br />24 VDC Power Supply, 1.7 A, 40W <br />7310-6024 <br />159 873 007 <br />24 VDC Power Supply, 2.5 A, 60W <br />7310-7024 <br />159 873 008 <br />24 VDC Power Supply, 4.0 A, 96W <br />3-8050.390-1 <br />159 001 702 <br />Retaining Nut Replacement Kit, NPT, Valox <br />3-8050.390-3 <br />159 310 116 <br />Retaining Nut Replacement Kit, NPT, PP <br />3-8050.390-4 <br />159 310 117 <br />Rc_taininq Nut Replacement Kit, NPT, PVDF <br />3-9000.392-1 <br />159 000 839 <br />Liquid -tight connector kit. 1 set, Y in_ NPT <br />3-0250 <br />159 001 538 <br />USB to digital (S3L) Configuration/Diagnostic tool <br />+GF+ — —_— <br />2551 Blind Magmeter 11 <br />