Magmeter 2551 - manual instruction
Contents
1. _ M M A Frequency output Frequency 10 output Reverse flow is processed same as forward flow in the frequency output magmeters Digital S L output 7 3 Calibration Data K factors PVC Tees and Saddles PIPE SIZE FITTING K Factor IN TYPE Gallons SCH 80 PVC TEES FOR SCH 80 PVC PIPE 2 PV8T005 2289 37 A PV8T007 1430 41 1 PV8T010 876 86 1 PV8T012 447 06 1 PV8T015 324 19 2 PV8T020 206 69 2 PV8T025 131 46 3 PV8T030 82 52 4 PV8T040 44 78 SCH 80 PVC TEES FOR SCH 80 CPVC PIPE CPV8T005 2496 03 A CPV8T007 1381 48 1 CPV8T010 857 98 1 CPV8T012 445 17 1 CPV8T015 325 56 SCH 80 PVC SADDLES FOR SCH 80 PVC PIPE 2 PV8S020 193 83 2 PV8S025 138 01 3 PV8S030 83 89 4 PV8S040 40 88 6 PV8S060 22 53 8 PV8S080 12 52 10 PV8S100 7 94 12 PV8S120 5 71 SCH 80 PVC SADDLES FOR SCH 40 PVC PIPE 2 PV8S020 180 01 2 PV8S025 123 72 3 PV8S030 75 81 4 PV8S040 41 87 6 PV8S060 19 71 8 PV8S080 11 73 10 PV8S100 7 43 12 PV8S120 5 23 12 K Factor Liters 604 85 377 92 231 67 118 11 85 65 54 61 34 73 21 80 11 83 659 45 364 99 226 68 117 61 86 01 51 21 36 46 22 16 10 80 5 95 3 31 2 10 1 51 47 56 32 69 20 03 11 06 5 21 3 10 1 96 1 38 Reverse flow results in 0 flow rate output Carbon Steel Tees and Weld o Lets Stainless Steel Tees and Weld o Lets Galvanized Iron Tees PIPE SIZE FITTING K Factor K Factor IN TYPE Gallons Liters CARBON STEEL TEES ON SCH 40 PIPE ve CS4T0052. _ _ 5 Rh ae Auxiliary Power for V I a aaa Display backlighting a LS ea ss GLE Cal eee ls Ground Signal Frequency Out Frequency 10 Out 5 to 26 4 VDC HORI RRA IR IIR RIKI 2551 Magmeter 2551 Magmeter Digital S L Out 4 5 to 6 5 VDC 5 2 Wiring Mirror Relay 1 output 5 3 2551 and other manufacturer s instruments The 3 2551 21 and 41 Magmeter can be configured to provide When using the 2551 in a system with other manufacturer s an Open Collector output in lieu of the sensor signal provided equipment a pull up resistor may be required to power the open by Frequency or Digital output selections The Open Collector collector output Output can be programmed via the Relay 1 menu 2551 Magmeter Not used Ground Display backlighting Relay Coils Open Collector Out gt eo ee 1 Non Signet Flow Instrument Sensr Gnd Ground amp SHIELD lt 5 24 VDC l l l l l l Auxiliary Power for l i l 1 l T Frequency Input RD Frequency Out 5 24VDC Out oe eee a 10 KO Pull up Resistol l 2551 Magmeter 5 24 VDC 2551 Magmeter GF 5 5 4 Wiring to Signet Flow Instruments 2551 and 8900 Multi Parameter Controller Frequency Out 2551 and 8900 Multi Parameter Controller Digital Out l l l Auxiliary Power for Display backlighting l Relay Coils i l l l 3 8900 621C I O Module 3 8900 401 X 5VDC Black
3. FPS Union tees The 2551 requires a full pipe and a fully developed turbulent flow profile for accurate measurement If the piping system harbors air pockets or bubbles take steps to locate the sensor so the air pockets will not contact the electrodes In vertical installations assemble the 2551 so the conduit ports are facing downward This prevents condensation inside the conduit from being directed into the 2551 electronics housing Chemical injection systems can temporarily alter the fluid conductivity and cause anomalies in the magmeter measurement To avoid this problem install the magmeter UPSTREAM of the injection point Description e 0 5 to 2 in versions e Mounts on threaded pipe ends e 2 to 4 inch cut 1 7 16 inch hole in pipe Over 4 inch cut 2 1 8 inch hole in pipe e 1 5 in to 8 in PVDF insert e gt 8 in PVC insert e For pipes from DN 15 to 50 mm e PP or PVDF 90 Elbow Inlet Outlet Flange _ gt AEE 10 x LD 5x1 D 15x I D 5xl D HT 20x1D 5x1 D me ee eee 2 x 90 Elbow a Gm gJ 25 x1 D Locating the sensor in a trap or where the flow is upward helps to protect the sensor from exposure to air bubbles when the system is in operation These configurations are not recommended because it is difficult to keep the pipe full In a gravity flow system the tank must be designed so the level does not drop below the outl
4. Magmeter located in area exposed to air bubbles pockets Magmeter is installed in pipe backwards Electrical noise is interfering with the measurement Electrodes are coated with deposits or chemical oxide layers Electrodes not adequately conditioned in fluid Fluid is moving inside the pipe Loop power not connected correctly 4 20 mA is not scaled properly 2551 is wrong model Incorrect setting in Options Menu Wiring is not correct Frequency input to other manufacturer s flow instrument does not have pull up resistor The fluid is too clean for magmeter Electronic component failure 2551 AUX power is not connected Main power is below specification Solution Relocate the magmeter to have straight uninterrupted pipe upstream of the sensor for at least 10 x the pipe diameter Eliminate air bubbles in the pipe Remove the magmeter and reinstall with the flow direction arrow on the sensor body pointed DOWNSTREAM Review the grounding of the magmeter and the pipe Install adequate Earth ground to allow the magmeter to operate properly Allow the sensor to sit in full pipe for 24 hours then restart Increase the Low Flow Cutoff section 7 0 Connect 24 VDC 10 connected to loop terminals 1 and 3 Check and reset in the Setup Menu Frequency S L model 3 2551 21 w rlys or 41 w o rlys Select Frequency in the Options menu Check wiring make corrections Install 10kQ resistor sect
5. ag Freq Input Red GND Shield ecg 5VDC Black ae Freq Input 2 Red s3L SSL Red Input 2 GND White Shield I O Module 3 8900 401 X 8900 6216 Frequency EEA BLOM I e 9 mp Freq Input Red GND Shield 5VDC Black Frequency Frequency pa Freq Input 2 Red Ground Ground Ground Ground 5VDC Black Input S3L Red Frequency Out 5VDC Black S3L Red GND White Shield Analog Output 1 J if applicable Digital SSL Out 5 24 VDC GND White Shield Analog Output 1 J if applicable l 5 24 VDC Analog Output 2 if applicable Analog Output 2 if applicable Auxiliary Power for Display backlighting Relay Coils 2551 and ProcessPro 8550 Flow Transmitter When connecting the 2551 to any 8550 model the AUXILIARY power in the 8550 must always be connected To 8550 1 Flow Transmitter 12 24 VDC l l Power Source l l l System Pwr l Loop I l system Pwr I O 6 ouput ee Ground AUX l Power MO zea Ground l ROX o 5 Output BACK l Frequency Out l Open Collector l 5 24 VDC Output Sensor Input l Terminals 3 4 4 20 Loop L
6. 1572 66 415 50 Ya CS4T007 1086 73 287 11 1 CS4T010 582 34 153 86 1 CS4T012 377 48 99 73 1 CS4T015 267 79 70 75 2 CS4T020 167 85 44 35 STAINLESS STEEL TEES ON SCH 40 PIPE ve CR4T005 1601 26 423 05 Ya CR4T007 937 78 247 76 1 CR4T010 606 18 160 15 1 CR4T012 279 68 73 89 1 CR4T015 147 65 39 01 2 CR4T020 111 90 29 56 STAINLESS STEEL WELDOLETS ON SCH 40 PIPE 2 CR4W025 106 31 28 09 3 CR4W030 72 27 19 09 4 CR4W040 36 84 9 73 5 CR4W050 29 28 7 73 6 CR4W060 20 29 5 36 8 CR4W080 11 73 3 10 10 CR4W100 7 45 1 97 12 CR4W120 5 24 1 39 CARBON STEEL WELDOLETS ON SCH 40 PIPE 22 CS4W025 105 70 27 93 3 CS4W030 70 68 18 67 4 CS4W040 36 38 9 61 5 CS4W050 29 28 7 73 6 CS4W060 20 29 5 36 8 CS4W080 11 73 3 10 10 CS4W100 7 45 1 97 12 CS4W120 5 24 1 39 GALVANIZED IRON TEES ON SCH 40 PIPE 1 IR4T010 558 50 147 56 1 IR4T012 334 45 88 36 1 IR4T015 248 97 65 78 2 IR4T020 146 00 38 57 GF 2551 Magmeter 7 3 Calibration Data K factors Polypropylene True Union Tees and Wafers Polypropylene Clamp on Saddles PVDF True Union Tees PVC True Union Tees PIPE SIZE FITTING K Factor K Factor Metric TYPE Gallons Liters POLYPROPYLENE FITTINGS DIN ISO BS ANSI DN15 PPMTO005 2192 73 579 32 DN20 PPMT007 1327 81 350 81 DN25 PPMT010 737 16 194 76 DN32 PPMT012 453 46 119 81 DN40 PPMT015 275 03 72 66 DN50 PPMT020 164 17 43 35 POLYPROPYLENE CLAMP ON SADDLES ON SCH 80 PP PIPE 10 PPS100 7 94 2 10 12 PPS120 5 71 1 51 POLYPROPYLENE CLAMP ON SADDLES ON SCH 40
7. PP PIPE 10 PPS100 7 43 1 96 12 PPS120 5 23 1 38 PVDF FITTINGS DIN ISO BS ANSI DN15 SFMTO005 1946 49 514 26 DN20 SFMT007 1158 05 305 96 DN25 SFMT010 749 09 197 91 DN32 SFMT012 439 51 116 12 DN40 SFMT015 248 93 65 77 DN50 SFMT020 146 85 38 80 PVC FITTINGS DIN ISO BS ANSI DN15 PVMTO005 2067 76 546 30 DN20 PVMTO007 1136 61 300 29 DN25 PVMT010 716 52 189 31 DN32 PVMT012 446 07 117 85 DN40 PVMT015 278 83 73 67 DN50 PVMT020 159 36 42 10 iron Saddles PIPE SIZE FITTING K Factor IN TYPE Gallons SCH 80 IRON SADDLE ON SCH 80 PIPE 2 IR8S020 194 85 2 IR8S025 142 28 3 IR8S030 87 53 4 IR8S040 40 62 5 IR8S050 29 28 6 IR8S060 22 30 8 IR8S080 12 52 10 IR8S100 7 94 12 IR8S120 5 65 SCH 80 IRON SADDLE ON SCH 40 PIPE 2 IR8S020 185 35 2 2 IR8S025 127 47 3 IR8S030 76 62 4 IR8S040 40 23 5 IR8S050 27 32 6 IR8S060 19 71 8 IR8S080 11 61 10 IR8S100 7 36 12 IR8S120 5 18 Bronze and Copper Tees and Brazolets PIPE SIZE FITTING K Factor IN TYPE Gallons BRONZE TEES ON SCH 40 PIPE 1 BR4T010 582 34 1 BR4T012 330 54 1V BR4T015 254 76 2 BR4T020 157 36 COPPER TEES FITTING ON COPPER PIPE SCH K VY CUKT005 2459 19 A CUKT007 1108 02 1 CUKT010 649 87 14 CUKT012 422 03 12 CUKT015 281 43 2 CUKT020 136 02 COPPER TEES FITTING ON COPPER PIPE SCH L VY CUKT005 2406 30 A CUKT007 1174 77 1 CUKT010 672 28 14 CUKT012 402 84 1V CUKT015 294 99 2 CUKT020 149 63 COPPER BRONZE BRAZOLET ON SCH 40 PIPE 2 BR4B025 117 31 3 BR
8. ground terminal Do not terminate shield at Magmeter Instrument Sensor Grounding ring Earth ground 4 in to 50 in 10 cm to 1 3 m 4 in to 50 in 10 cm to 1 3 m Grounding rings on plastic pipe 2 Install between flanges or metal straps on metal pipe 12 2 Maintenance The 2551 Magmeter requires very little maintenance There are no user serviceable components in the magmeter e Ifthe fluid contains deposits and solids that may coat the electrodes a regular cleaning regimen is recommended Do not use abrasive materials on the metal electrodes Clean with soft cloth and mild detergent only e Use a cotton swab and mild detergent to remove deposits on the metal electrodes Environmental Recommendations e When used properly this product presents no inherent danger to the environment e Please follow local ordinance when disposing of this or any product with electronic components 18 GF 2551 Magmeter 12 3 Troubleshooting Symptom Output is erratic and unstable Output is not 0 when flow is stopped No 4 20 mA output 4 20 mA current output is incorrect No Frequency output No S L output No flow rate current output is 22 mA Blank display no backlighting no relay LEDS but external equipment using output signal is still working Error Message Error Not Saved Possible Cause Magmeter installed too close to upstream obstruction
9. point or comma for use in numeric displays For Frequency Digital models only Select Freq output Freq 10 output Mirror Relay 1 output or S L Digital output 11 1 Output Modes In FREQUENCY output mode the 2551 serves as a traditional flow sensor and provides an output pulse that is compatible with all Signet POWERED flow instruments It is not compatible with the 5090 Self Powered Flow Meter or the 8150 1 Battery powered flow totalizer The frequency output range is from 0 Hz to 1000 Hz The FREQUENCY 10 output mode reduces the output frequency of the 2551 to a range that is useful for some programmable logic controllers PLC The frequency output range is from 0 Hz to 100 Hz This shift does not affect the stated accuracy of the 2551 Magmeter s frequency output The MIRROR RELAY 1 output mode allows 2551 Frequency Digital models to use the Open Collector Output like a relay that can be programmed via the Relay 1 menu If the magmeter is equipped with relays this mode will mirror the settings of Relay 1 If the magmeter is not equipped with relays this mode can still be selected and programmed via the Relay 1 menu The S3L Digital output mode switches the 2551 to the Signet serial data output called S L Signet Serial Sensor Link In this mode the 2551 can be added to the serial bus of the Signet 8900 Multi Parameter Controller 2551 Magmeter GF 17 12 0 Technical Information 12 1 Grounding Precalibration conditioning
10. rings FPM standard EPDM Kalrez optional The user is responsible for determining the chemical suitability of these materials for a specific application PBT Polyamide e Case e Display window Power Requirements e 4to20 mA 21 6 to 26 4 VDC 22 1 mA max 400 mV p p maximum ripple voltage e Frequency 5 to 26 4 VDC 15 mA max Digital 5 to 6 5 VDC 15 mA max e Auxiliary only required for units with relays 9 to 24 VDC 0 4A max e Reverse polarity and short circuit protected Performance e Pipe size range e Flow Range Bi directional e Linearity e Repeatability e Minimum Conductivity DN15 to DN300 to 12 in Minimum 0 05 m s 0 15 ft s Maximum 10 m s 33 ft s 1 of reading 0 01m s 0 033 ft s 0 5 of reading 25 C 77 F 20 uS cm Output Specifications Current output 4 to 20 mA e Max Loop Resistance e Loop Accuracy 32 pA max error 25 C 24 VDC e Temp drift 1 pA per C max e Power supply rejection 1 uA per V e Isolation Low voltage lt 48 VAC DC from electrodes and aux power 300 m 1000 ft 22 1 mA 3002 Maximum cable Error condition Frequency output e Output modes Freq Freq 10 or Mirror Relay 1 e Max Pullup Voltage 30 VDC e Reverse Polarity Protected to 40 V Relay Specifications e Relay 1 and 2 Type Mechanical SPDT Rating 5A 30 VDC max 5A 250 VAC max e Relay 3 Type Solid State Rating 50 mA 30 VDC 50
11. 0 Test Menu 17 6 0 View Menu 8 11 0 Opti M 17 6 1 Resetting the Resetable Totalizer 8 ptions Menu 6 2 Navigating the Menus 9 11 1 Output Modes 17 6 3 Keypad Functions 9 12 0 Technical Information 18 6 4 Security Code 9 12 1 Grounding 18 12 2 Maintenance 19 12 3 Troubleshooting 19 13 0 Ordering Information 20 WARNING Do not use any tools to tighten the yellow retaining cap FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT d DO NOT USE thread sealant or IN THE SENSOR BEING EJECTED FROM THE PIPE lubricants on retaining cap The O rings can be lightly DO NOT USE ANY TOOLS ON THE RETAINING CAP 7 lubricated to facilitate insertion HAND TIGHTEN ONLY into the pipe fitting DO NOT USE petroleum based THE O RINGS CAN BE LIGHTLY LUBRICATED TO lubricants on O rings FACILITATE INSERTION INTO THE PIPE FITTING DO NOT USE PETROLEUM BASED LUBRICANTS DO NOT USE thread sealant DO NOT USE THREAD SEALANT OR LUBRICANTS ON foe aa on the fitting THE RETAINING CAP OR ON THE PLASTIC FITTING THREADS IF LEAKING IS OBSERVED FROM THE RETAINING CAP IT INDICATES DEFECTIVE OR WORN O RINGS ON THE SENSOR DO NOT ATTEMPT TO CORRECT BY FURTHER TIGHTENING 2 0 Specifications Wetted Materials e Sensor body and Electrodes and Grounding ring e PO P1 P2 Polypropylene and 316L SS e TO T1 T2 PVDF and Titanium e VO V1 V2 PVDF and Hastelloy C e WO W1 W2 PVDF and 316L SS e O
12. 1000 6 2 2001 e Safety EN61010 1 2001 Bipe Range e U S Patent No 7 055 396 B1 1 2to4in XO 58mm 2 3 in 5to8in X1 91mm 3 6 in 10 to 12 in X2 167 mm 6 6 in X Sensor Body P T V or W 2 GF 2551 Magmeter 3 Installation Pipe fittings Georg Fischer offers a wide selection of installation fittings that control the position of the Magmeter electrodes in relation to the dimensions of the pipe You will find a complete list of order numbers for installation fittings in the Calibration Tables on pages 12 13 Type Plastic tees PVC Glue on Saddles PVC Saddles PP Clamp on Saddles Iron Strap on saddles Description e 0 5 to 4 inch versions e PVC or CPVC Available in 10 and 12 inch sizes only e Cut 2 1 2 inch hole in pipe e Weld in place using solvent cement e 2 to 4 inch cut 1 7 16 inch hole in pipe e 6 to 8 inch cut 2 1 8 inch hole in pipe e Available in 10 and 12 inch sizes only Cut 2 1 8 inch hole in pipe e 2 to 4 inch cut 1 7 16 inch hole in pipe e Over 4 inch cut 2 1 8 inch hole in pipe 3 1 Installation Selecting a Location Select a location with sufficient distance of straight pipe immediately upstream of the sensor Type Iron Carbon Steel 316 SS Threaded tees Carbon steel amp stainless steel Weld on Weldolets Fiberglass tees amp fs a aa saddles FPT Metric ed
13. 2 159 001 461 3 2551 W2 42 159 001 465 Replacement parts Mfr Part No 1220 0021 1224 0021 1228 0021 3 8551 521 3 8050 396 Code 198 801 186 198 820 006 198 820 007 159 001 378 159 000 617 Description O ring FPM Viton O ring EPDM O ring FFPM Kalrez Clear plastic cap for display RC Filter kit for relay protection GFt Georg Fischer Signet LLC 3401 Aerojet Avenue El Monte CA 91731 2882 U S A Tel 626 571 2770 Fax 626 573 2057 For Worldwide Sales and Service visit our website www gfsignet com Or call in the U S 800 854 4090 3 2551 090 1 Rev G 10 08 English Georg Fischer Signet LLC 2008 Printed in U S A on recycled paper
14. 4B030 78 62 4 BR4B040 45 13 5 BR4B050 32 79 6 BR4B060 22 73 8 BR4B080 13 14 10 BR4B100 8 34 12 BR4B120 5 87 2551 Magmeter GF K Factor Liters 51 48 37 59 23 13 10 73 7 74 5 89 3 31 2 10 1 49 48 97 33 68 20 24 10 63 7 22 5 21 3 07 1 94 1 37 K Factor Liters 153 86 87 33 67 31 41 58 649 72 292 74 171 70 111 50 74 35 35 94 635 75 310 37 177 62 106 43 77 94 39 53 30 99 20 77 11 92 8 66 6 01 3 47 2 20 1 55 13 8 0 Calibration Menu The K factors published in this manual assume that the flow conditions in the pipe are ideal GF Many factors that affect the flow rate are beyond the control of the magmeter variations in RELAY FEV actual pipe dimensions pipe smoothness and other flow conditions will contribute to the total system error Signet Magmeter Performing a custom calibration with the magmeter in place will adjust the K factor and z can serve to compensate for installation conditions that may be less than ideal A y EUR Select one of the calibration methods in this menu to achieve the most accurate measurement possible in a specific application NOTE The Security Code must be entered before selecting the calibration method Loner 8 1 Volume method of calibration Use the volume method of calibration if the fluid passing the magmeter can be measured by a volumetric method as in a vessel of known volume or by weight It requires the ability to pump a kno
15. C2 NO3 NC3 Auxiliary power must be connected to operate the relays and to power the display backlighting Auxiliary power is fully isolated The Loop Power supply may be used for Aux power if the power source provides a sufficient current rating Application Notes Relay Wiring Mechanical Relays 5A 250 VAC 5A 30 VDC Solid State Relay 3 50 mA max 30 VDC 50 mA max 42 VAC Auxiliary Power 9 to 24 VDC 0 4 A Maximum Relay 3 Relay 2 Relay 1 Relay Terminal Legend NO Normally Open NC Normally Closed C Common e Inductive relay loads may generate transient voltage spikes well in excess of the relay contact ratings This will cause arcing across the contacts and consequently rapid relay wear Signet recommends a RC style filter snubber installed as illustrated here e The filter kit 3 8050 396 is available as an accessory item See ordering information on back cover e Signet product warranty does not cover damage to relays due to contact burnout 3 8050 396 AC powered Pumps Alarm lamps Audio alarms Mixers Definition An inductive load is an electrical device generally made of wire that is coiled to create a magnetic field to produce mechanical work when energized Examples of inductive loads include motors solenoids and relays High voltage transients from these types of loads can cause arcing across mechanical switching contacts or can cause dama
16. Signet 2551 Magmeter English NNN N N 3 2551 090 1 Rev G 10 08 English SAFETY INSTRUCTIONS Y Depressurize and vent system prior to installation or removal Confirm chemical compatibility before use Do not exceed maximum temperature pressure specifications Wear safety goggles or faceshield during installation service Do not alter product construction meN 1 0 Description The 2551 Magmeter measures the flow rate in a full pipe by monitoring the voltage produced when the conductive fluid moves through a magnetic field Output options include a traditional frequency signal a serial data digital output and a 4 20 mA output The 2551 Magmeter is available in three sizes that will accommodate pipes from inch through 12 inch diameters Select from four different material combinations to match the magmeter to the application requirements Contents 1 0 Description 1 7 0 Setup Menu o 10 2 0 Specifications 2 a Ta PA ee oer 2 Bi Directi w 3 0 Installation Pipe fittings 3 73 Calibration Data 12 3 1 Location of Fitting 3 8 0 Calibration Menu 14 4 0 Overview of 2551 Display versions 4 8 1 Volume method of calibration 14 5 0 nng nia 8 2 Rate method of calibration 14 1 Basic Wiring 5 2 Wiring Mirror Relay 1 output 5 a Aga tire m de 5 3 2551 and other manufacturer s instruments 5 92 Total Relay mode 15 5 4 Wiring to Signet Flow Instruments 6 9 3 High Low or Window Relay modes 16 5 5 Wiring Relays 7 i 10
17. The display includes two LEDs that light when Relay 1 or Relay 2 are activated e All three relays can be monitored by scrolling to the Relay Status display located in the View menu e If the Language option has not been made new magmeters will always open with the Select Language display RELAY1 RELAY 2 Signet Magmeter A YP ENER e e e e Aux Pwr Relay 3 Il elay Il elay Relay output Aux power 4 20 mA output Digital output Frequency output Mirror relay 1 output 4 20 freq out s n 60504201234 60504201234 pin 3 2551 11 3 2551 11 4 GF 2551 Magmeter 5 0 Wiring 5 1 Basic Wiring Frequency output 4 20 mA output e 3 2551 21 and 3 2551 41 Magmeters may be programmed The 3 2551 22 and 3 2551 42 Magmeters provide a passive 4 20 to provide an open collector FREQUENCY output mA loop output e The maximum frequency output is 1000 Hz 10 meters per External loop power 24 VDC is required second e Factory standard calibration is 4 20 mA 0 5 m s e If the Frequency 10 output is selected the maximum e The 4 20 mA output can be spanned to any range from 10 frequency is 100 Hz 10 meters per second m s to 10 m s e AUX PWR must be connected to power the display AUX PWR must be connected to power the display backlighting and to power the relay coils if included backlighting and to power to the relay coils if included r _ Auxiliary Power for
18. The magmeter may appear to be unstable immediately after installation Allow the sensor to sit in a full pipe for 24 hours before beginning calibration and operation e Use a cable gland or a liquid tight connector to seal the cable ports from water intrusion e Use Teflon tape or a suitable sealant on cable ports The 2551 magmeter must be carefully grounded to eliminate electrical noise that may interfere with the measurement e Grounding requirements will vary with each installation e The following recommendations should be applied in sequence until the interference is eliminated The ground terminal on the outside of the yellow housing is connected internally to the grounding ring at the tip of the sensor Connect a conductor 14 AWG 1 5 mm wire recommended from this terminal directly to Earth ground to prevent electrical noise from interfering with the magmeter signal If the interference persists apply step 2 Connect grounding rings metal clamps or grounding electrodes to the pipe immediately upstream and downstream of the magmeter sensor location These devices must be in contact with the fluid If the interference persists apply step 3 The shield from the output cable must be terminated at the remote instrument ONLY This shield must not be connected at both ends If the interference persists apply step 4 Connect an additional wire minimum AWG 14 1 5 mm from the remote instrument ground to the magmeter
19. ay Volume Set the volume of fluid that the 2551 must measure before activating the relay for one pulse E Pulse Width Adjust the length of time the relay will remain activated The pulse width setting is dependent on the type of external equipment being connected to the relay 9 2 Total Relay mode Program a relay to activate when the Resetable totalizer reaches a specific value The maximum setting is 999999 Application example A filter must be replaced in a R O system every 10000 gallons The service representative that installs a new filter sets relay 3 to Total mode sets the setpoint at 10000 and resets the totalizer to 000000 00 When the totalizer is reset the relay will be deactivated and the process begins anew Every time the Totalizer reaches 10000 the relay activates and lights a message indicator to remind the operator to contact the service representative to replace the filter 2551 Magmeter GF 15 9 3 High Low or Window Relay modes Program the relay to activate when the flow rate reaches a setpoint High or Low or when the flow rate moves outside of a prescribed range Window Reverse Flow The setpoint values for HIGH LOW and WINDOW modes can be set to negative values if required For example a LOW alarm might be set to activate if the flow rate falls to 10 GPM AV te Bins Signet Magmeter Process Hysteresis Relay behavior with LOW Setpoint Low Setpoint Process High Setpoi
20. display is a reminder to visit the Signet website for updates and information about Signet products Enter menus from this display See section 6 2 6 1 Resetting the Resetable Totalizer GFt RELAY1 EENG Signet Magmeter A enter 1 From the normal operating display press the RIGHT arrow key 2 The resetable totalizer can be configured to require the security code before allowing the reset If the Total Reset set to RESET OFF this display will not appear See section 11 Options Menu for instructions 3 Press any arrow key to toggle the flashing selection from NO to YES 4 Press the ENTER key The totalizer will reset to 000000 00 and the display will immediately return to the normal operating display GF 2551 Magmeter 6 2 Navigating the Menus Normal Operation Display The normal operating display shows the Flow Rate on the top line and the Resetable Totalizer on the bottom line e All menu instructions in this manual assume that the instrument is showing this display 2551 Menu Directory The 2551 magmeter uses seven main menus to provide access to the calibration and programming features Each menu serves a specific function Starting from the normal operating display there are two ways to access the menus 1 Press the UP arrow key to scroll to the Enter Menu display then press the RIGHT arrow key 2 Press the ENTER key and hold it for about three seconds Setup Me
21. e wo 1 b An ere 8 2 nh S A D 1 gt 1 i ry fet ifs 1 1 i a n nate r 1 2 Time 10s 20s 30s 40s 50s 60s 70s Averaging Only With AVERAGING set to 50 seconds and SENSITIVITY still set to zero the flow rate is stabilized but a sharp change in flow rate is not represented on the display or at the output for 50 seconds or longer pman Velocity Averaging and Sensitivity With AVERAGING at 50 seconds and SENSITIVITY set to 25 the flow rate is stabilized while the sudden shift in flow is reflected very quickly Velocity Time 10s 20s 30s 40s 50s 60s 70s GF 11 7 2 Bi Directional Flow e The 2551 magmeter is designed to measure bi directional flow e The forward flow direction is indicated by the directional arrow molded into the side of the 2551 sensor e The conduit ports are assembled at the factory to point UPSTREAM They may be reversed by disassembling the components of the magmeter and reassembling Flow Rate Display Totalizer Display Relay Outputs 4 20 mA output 123 45 GPM during reverse flow The sign is suppressed during forward flow The totalizer will count during forward flow conditions only During reverse flow the totalizer will not increment May be set to detect reverse flow May be scaled to span any flow range For example 4 to 20 mA 100 GPM to 100 GPM Low Setpoint at 25 GPM
22. ecial characters listed in the Total Factor settings are available here also Low Flow Cutoff Set a flow rate that the 2551 Magmeter will use as a minimum threshhold If the flow rate falls below this value the 2551 will respond as if the flow were zero Averaging Set the averaging period based on the installation and flow conditions Smaller values allow the 2551 to respond to changes in flow rate quickly while larger values smooth the fluctuations caused by installation and flow conditions See section 7 1 for details Sensitivity Set a percentage of maximum range by which the flow must change to override the averaging feature and jump quickly to the new flow rate See detailed explanation in section 7 1 N a a D a 3 D D o S 10 GF 7 1 Averaging and Sensitivity Even the most carefully engineered flow systems may experience erratic and unstable conditions If the instability is communicated to the output functions the results may create problems for control devices To alleviate these issues the 2551 provides two adjustments that operate in tandem The information here will help in determining the appropriate settings for any specific application Averaging e The AVERAGING setting dictates the time over which the magmeter will average the flow signal The LCD display is updated every second With averaging at 14 seconds the flow rate on the display is an average of the previous 14 seconds input Shor
23. et This causes the pipe to draw air in from the tank If air bubbles pass across the Magmeter electrodes the output will become erratic 2551 Magmeter 2 x 90 Elbow 3 dimensions E Valve Pump gt 5x1 D O K Y 40 x ID O K ie he i 4 _ 5x 1D 50x1D 2 Vertical flow is OK IF the pipe remains full at all times GF ToD cerna D 4 0 Overview of 2551 Display Magmeter 2551 Display Magmeters use a dual sided electronics module and dual conduit ports Unused ports must be sealed to protect the electronics from water damage The lower set of conduit ports provide access to the wiring terminals for e Loop Power e Flow Output Signal current loop frequency or Mirror Relay 1 output The upper set of conduit ports provide access to the wiring terminals for e Relay output wiring e Auxiliary power for relay coils and display backlight The sensor is marked with a directional arrow to indicate the direction identified as forward flow An adhesive decal is also provided that can be affixed to the pipe to indicate the direction of forward flow Flow in the opposite direction from the arrow will be identified as reverse flow on the display by a symbol The terminals in the magmeter are designed to accomodate 16 to 22 AWG conductors 6
24. g A V gt ENTER The values shown for each menu item represent the factory standard setting All 2551 magmeters are packaged with these settings K Factor See the charts in section 7 3 for values in pulses per U S Gallon or in pulses per Liter To use other units convert the published values as appropriate Pipe Size Select the pipe size that is nearest to the nominal pipe size Flow Units Set the units for the application Four characters are available The first three characters can be set to any symbol or alpha character upper or lower case The following special symbols are located between the upper case and lower case menus e centered dot u micro _ blank dash slash 3 for cubic units The last character selects the timebase for the flow rate measurement Select S s seconds M m minutes H h hours or D d days Set 4 mA In the 2551 22 and 2551 42 versions only set the flow rate where the current output will be 4 mA Set 20 mA In the 2551 22 and 2551 42 versions only set the flow rate where the current output will be 20 mA The 4 20 mA output may be spanned to monitor forward and reverse flow rates Total Factor Set the factor by which the totalizer will count This setting is made in the application units ie gallons liters etc Totalizer Units Set the Totalizer Units This setting serves as a label for the totalizer displays only It has no effect on the measurement The sp
25. ge to solid state contacts 2551 Magmeter GF 120 240 VAC NO1 NC1 C1 NO2 NC2 C2 NO3 NC3 Mechanical Relays 5A 250 VAC 5A 30 VDC Solid State Relay 3 50 mA max 30 VDC 50 mA max 42 VAC Auxiliary Power 9 to 24 VDC 0 4 AMaximum Relay 3 Relay 2 Relay 1 6 0 View Menu The VIEW menu contains all of the basic information available from the magmeter e The normal operating display shows the FLOW RATE on the top line of the display and the Resetable Totalizer on the lower line of the display i E GF e The Right Prompt symbol gt always indicates a sub menu associated with the current display In this display it points the way to the TOTALIZER RESET function See RELAY1 RELAY 2 section 6 1 for detailed instructions e With AUXILIARY power connected to the magmeters with Relays the display will be backlit There is no switch to turn the backlight off a 7 Signet Magmeter DT Mashing character or text on the display indicates that the item is being edited This manual uses a red star to illustrate a flashing display A V ENTER amp e The following information is viewed by scrolling UP or DOWN These displays will remain in the display for 10 minutes then the normal operating display will return Show the permanent total This totalizer cannot be reset Shows the current output For 4 20 mA Output models only Relay States shown for units with a relay board This
26. ion 5 1 Unsuitable application for magmeter Return 2551 to factory Connect AUX power section 5 5 9 to 24 VDC 0 4 A max Correct the main power deficiency Troubleshooting with the RED and BLUE lights Reverse flow No Lights Frequency out cannot distinguish reverse flow from forward The power is off or the sensor is not connected flow The output will be the absolute value Solid Blue Digital SSL output Reverse flow results in 0 flow rate The power is on but there is no flow in the pipe displayed on 8900 Blinking Blue e 4 20 mA output can be spanned into negative flow range using the custom setup tool example 4 20 mA 100 to 100 GPM Normal operation blink rate is proportional to the flow rate Alternating Red Blue Empty pipe indication electrodes Empty Pipe Detection are not wet Frequency output will be locked to 0 Hz if electrodes are not Blinking Red wet System errors Electrical noise Digital S L output will be locked to 0 if electrodes are not interference wet Solid Red 4 20 mA vill be locked to 4 mA if electrodes are not wet Instrument error defective E e Blue and Red LED indicators on the magmeter circuit will electronic component blink alternately if the electrodes are not wet Lai em 2551 Magmeter GF 19 13 0 Ordering Information Sensor Part No 3 2551 Sensor Body Transducer and electrodes grounding ring materials Cho
27. mA 42 VAC Hysteresis Adjustable plus timer delay 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 Fail Closed Display Characters 2x16 Contrast User set in four levels Backlighting only on relay versions Requires external 9 24 VDC 0 4 mA max Environmental Requirements Storage Temperature 20 to 70 C 4 to 158 F Relative Humidity 0 to 95 non condensing Operating Temperature e Ambient 10 to 70 C 14 to 158 F e Media 0 to 85 C 32 to 185 F Max operating pressure 10 3 bar 25 C 150 psi 77 F 1 4 bar 85 C 20 psi 185 F bar psi 2551 Pressure vs Temperature 14 200 11 160 8 120 D oO Operating Pressure w a F 0 40 80 120 160 200 240 C 18 4 27 49 71 93 115 Media Temperature e Max Current Sink 50 mA current limited Dimensions e Maximum cable 300 m 1000 ft 495 3 mm 3 75 in Digital S L Output e Serial ASCII TTL level 9600 bps 1 e Compatible with Signet 8900 Standards and Approvals eee QE 4 6 in e UL CUL for display versions with relays e NEMA 4X IP65 Enclosure with cap installed e EMC EN55011 1998 A1 99 A2 02 Class B Emissions EN61326 1997 A1 98 A2 01 EN6
28. models Only Toggle any of these relays ON and OFF to verify that the system is operating properly Auxiliary power MUST be V Auxiliary Power connected to the 2551 to test 9 to 24 VDC V the relays 0 4 A Maximum Signet Magmeter ey ee 11 0 Options Menu The Options Menu contains those features and settings that will normally be set one time and then seldom changed These include language preference decimal placement Security Code assignment etc Select from English German French or Spanish This Selection will be displayed at first power up of a new magmeter GFt RELAY1 RELAY2 Security Code can be set to any four digit number Factory standard setting is 0000 Signet Magmeter Set for best view after the magmeter is installed Larger number ee means display appears darker Lock ON requires the Security Code before resetting the Resetable Totalizer Lock OFF reset with no security code The values shown for each Filters out common 50 or 60 Hz electrical noise menu item represent the factory standard setting All 2551 magmeters are packaged with these settings Set the maximum resolution for the FLOW RATE display by limiting the decimal to this point The Flow Rate display will auto scale from this resolution up to whole units Set the maximum resolution for the TOTALIZER display by limiting the decimal to this point The Totalizer display will always show this resolution Select decimal
29. nt Relay behavior with HIGH Setpoint Hysteresis NOTE The Security Code must be entered ea before modifying the High Limit Fiysteresis sopas relay menu Window g Relay behavior with WINDOW Setpoints E Eos Hysteresis eee ea et i ae Slag Process Low Limit ume The values shown for each menu item represent the factory Relay activated 3 standard setting All 2551 magmeters are packaged with these Relay deactivated Jj settings Set Low Set the flow rate where a Low relay will be activated Set High Set the flow rate where a High relay will be activated Hysteresis Set a flow rate increment where the relay will be deactivated The hysteresis setting serves to prevent relay chatter when the flow rate recovers from an alarm condition by requiring the low rate to move substantially within the setpoint Delay Seta time period for the relay to wait after reaching the setpoint This delay serves to prevent the relay chatter by allowing the flow rate time to move back within the setpoint The menu repeats for Relay 2 and Relay 3 16 GF 2551 Magmeter 10 0 Test Menu The Test menu provides a simple method to verify that the system is operating properly Auxiliary power MUST be connected to the 2551 to activate the relays Shown for 4 20 mA models Only Use the keypad to enter any current output from 4 0 mA minimum to 22 1 mA maximum GFt RELAY1 RELAY2 Shown for Relay
30. nu This menu contains all of the settings and information that the magmeter requires to operate including the K factor the totalizer settings low flow cutoff and several display Calibration Menu The Calibration menu provides two different methods for adjusting the calibration See section 8 0 for details related to this menu Relay Menus Each of the available relays in the 2551 21 and 22 are programmed from their own dedicated menu See section 9 for details related to these menus Note Menu items associated with Relay 2 and relay 3 are suppressed in models without relays See section 9 0 for details related to this menu Test Menu The Test menu is used to manually toggle relays or to induce a known value out of the 4 20 mA terminals See section 10 0 for details related to this menu Options Menu The Options menu contains those settings and values that are usually programmed during the initial installation and then seldom modified including the SECURITY CODE see section 6 4 See section 11 0 for details related to the Options menu GFt RELAY1 RELAY 2 Signet Magmeter A V gt enter gt ENTER A B 3 lt gt lt gt lt gt gt V lt gt lt gt 6 3 Keypad Functions Scrolls UP through any menu If the display shows any flashing character or selection scrolls UP to the previous value or selection Scrolls DOWN through a
31. ny menu If the display shows any flashing character or selection scrolls DOWN to the next value or selection Press the UP and DOWN keys together to abandon any unsaved edits and return to the previous display Opens the menu currently being displayed In Edit modes advances the flashing character In menus with only two options Yes or No On or Off toggles between selections Saves a new selection in any menu From Normal Operation display jumps to first selection in Menu directory when held for three seconds 2551 Magmeter 6 4 Security Code The 2551 has a security code that can be programmed to any four digit numerical value e The factory setting is 0 0 0 0 e To program the security code go to the Options menu e The security code will be required to edit any of the items in the menus It is required only once for each editing session e Record the custom security code here or in a safe location e Ifthe security code is lost contact your Signet service center for instructions A Security Code WRITE IT DOWN GF 9 7 0 Setup Menu The Setup menu contains all of the parameters necessary for the 2551 Magmeter to begin GFt measuring flow RELAY1 RELAY 2 NOTE The Security Code must be entered before any changes can be made to the Setup menu See the Options menu in section 11 for details Signet Magmeter A Vp ENTER Use the keypad to navigate through each settin
32. oop Power from l l l Terminals 1 2 Auxiliary Power Magmeter l l 2551 Magmeter l Maia i 2551 and ProPoint 5075 5500 5600 Pe e G E NO1 z l l nca 5 lc l NO2 ET N NC2 E l l C2 4 No3 a z C Nc3 a W o c3 Ga os of n m m 2 Auxiliary Power for V 5 Display backlighting y e Relay Goils __ z E DPADUSPDA MGDOGOOQO E HOHHHHHHHHHHE 2t 3 a D oO Frequency Out 5 24 VDC 2551 Magmeter Freq IN Iso Gnd Freq IN 4 20 output output Std Sensor 12 24 V Open Collector 10 W Sensor 6 GF 2551 Magmeter 5 5 Wiring Relays Relay 1 Relay 2 Type Mechanical SPDT Rating 5A 30 VDC max 5A 250 VAC max Relays 1 and 2 are dry contact relays rated for 5 A maximum current Relays 1 and 2 are best suited for switching high voltage loads such as AC powered pumps and valves When used to switch inductive loads dry contact relays may be damaged by arcing Signet recommends the installation of a filter device to prevent such damage 3 8050 396 159 000 617 RC Filter kit for relay use Relay 3 Type Solid State Rating 50 mA 30 VDC 50 mA 42 VAC Relay 3 is a solid state relay It can be applied exactly the same as a dry contact relay but the current rating is 0 2 A 200 mA maximum Relay 3 is best suited to pulse applications and low voltage loads NO1 NC1 C1 NO2 NC2
33. ose one P T V W 0 DN15 to DN100 1 2 to 4 in 1 DN125 to DN200 5 to 8 in 2 DN250 to DN300 10 to 12 in Display Options Choose One 2 4 Output options Choose One Open Collector Frequency out or Digital SL out 2 4to 20 mA output 3 2551 P Mfr Part Number Code Mfr Part Number Code 3 2551 P0 21 159 001 267 3 2551 V0 21 159 001 269 3 2551 P0 22 159 001 273 3 2551 V0 22 159 001 275 3 2551 P0 41 159 001 261 3 2551 V0 41 159 001 263 3 2551 P0 42 159 001 279 3 2551 V0 42 159 001 281 3 2551 P1 21 159 001 268 3 2551 V1 21 159 001 270 3 2551 P1 22 159 001 274 3 2551 V1 22 159 001 276 3 2551 P1 41 159 001 262 3 2551 V1 41 159 001 264 3 2551 P1 42 159 001 280 3 2551 V1 42 159 001 282 3 2551 P2 21 159 001 435 3 2551 V2 21 159 001 456 3 2551 P2 22 159 001 438 3 2551 V2 22 159 001 457 3 2551 P2 41 159 001 432 3 2551 V2 41 159 001 462 3 2551 P2 42 159 001 441 3 2551 V2 42 159 001 463 3 2551 T0 21 159 001 436 3 2551 W0 21 159 001 271 3 2551 T0 22 159 001 439 3 2551 W0 22 159 001 277 3 2551 T0 41 159 001 433 3 2551 W0 41 159 001 265 3 2551 T0 42 159 001 442 3 2551 W0 42 159 001 283 3 2551 T1 21 159 001 437 3 2551 W1 21 159 001 272 3 2551 T1 22 159 001 440 3 2551 W1 22 159 001 278 3 2551 T1 41 159 001 434 3 2551 W1 41 159 001 266 3 2551 T1 42 159 001 443 3 2551 W1 42 159 001 284 3 2551 T2 21 159 001 454 3 2551 W2 21 159 001 458 3 2551 T2 22 159 001 455 3 2551 W2 22 159 001 459 3 2551 T2 41 159 001 460 3 2551 W2 41 159 001 464 3 2551 T2 4
34. ration of the 2551 Use the keypad to modify the flow rate to match the reference meter The 2551 will automatically calculate a new K cactor based on the new flow rate This message appears if the new K Factor is less than 0 0001 or greater than 999999 To correct the problem reexamine the flow rate and make certain it is accurate Using the information from the RATE MATCHING method the 2551 will recalculate a new K Factor Press ENTER to accept the new value or use the keypad to adjust the value i GF 2551 Magmeter 9 0 Relay Menus Magmeter models 3 2551 21 and 3 2551 22 have two dry contact GF relays Relays 1 and 2 and one Solid State relay Relay 3 RELAY1 RELAY Any of these relays can be set to any of the operating modes listed below Signet Magmeter A YV gt enter The setpoint values for HIGH LOW and WINDOW modes can be set to negative values if required For example a LOW alarm might be set to activate if the flow rate falls below 10 GPM Negative values are not available for relays in PULSE or TOTAL modes Off If a relay is not used it can be turned Off to prevent contact wear NOTE The Security Code must be entered before modifying the relay menu e 9 1 Pulse Relay mode Program a relay to activate for a fixed period for each volume of fluid that passes the sensor For example program the relay to pulse once for 100 ms for every 3 gallons that pass by the sensor Rel
35. t averaging times provide the fastest display and output response to changes in the flow rate Higher averaging times help to smooth the display and current output where the flow in the pipe is erratic or unstable due to installation limitations Sensitivity e The SENSITIVITY setting determines how the 2551 responds to sudden surges in the flow rate It overrides the Averaging function just long enough to allow an actual change in flow rate to be displayed then resumes the averaging The result is a smooth flow display and a quick response to large shifts in the flow rate The settings for Sensitivity represent a percentage of the magmeter s maximum range or 10 m s Example A sensitivity setting of 25 means that the flow rate must change instantly and by more than 2 5 m s before the function is enabled NOTE The SENSITIVITY function is ineffective if the Averaging function is set to zero CAUTION The SENSITIVITY function changes the response characteristics of the magmeter If used as part of a tuned closed loop control system such a change may be undesirable 2551 Magmeter No Averaging With AVERAGING set to zero the flow rate will be displayed immediately and with no filtering This line represents the actual output of the flow sensor as it responds to unstable flow conditions in the pipe A 4 a on T noad an s PL ee a cheat erie we 0 alt les te plamte m tt ft ry ye 4 Yange f
36. wn volume of water past the magmeter and then input the volume into the 2551 program Itis most useful for small pipes and lower flow rates When performed properly volumetric calibration is the most accurate method For best results a five minute test period is recommended and the test period should be no less than two minutes At START the 2551 begins counting the flow past the sensor At STOP the 2551 stores the total flow accumulated since the START Enter the VOLUME that has been pumped past the sensor This error message appears if volume entered or the accumulated flow is zero Repeat the test after checking the system This message appears if the new K Factor is less than 0 0001 or greater than 999999 To correct the problem perform the volumetric flow again and be certain that the volume entered is accurate Using the information from the VOLUME method the 2551 will recalculate a new K Factor Press ENTER to accept the new value or use the keypad to adjust the value 8 2 Rate method of calibration Use this method if the 2551 Magmeter must be calibrated to match a reference flow meter This is the method most commonly used by monitoring agencies and for large pipes where volumetric calibration is impractical The accuracy of this calibration method is largely dependent on the accuracy of the reference meter and the proximity of the reference to the Signet 2551 Magmeter The flow rate shown is based on the existing calib
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