User`s Manual - Spec-Tech Industrial Electric.
Contents
1. The Digital SL output is compatible with the 3 8900 Multi Parameter Controller Blk Red Shld Power Rating 5 6 5VDC ZZZ 0 03 AMP WIRING DIAGRAM z l ns Q U z E ron I O Module 3 8900 401 X me Bren i 3 2505 613A S x a faa D Frequency 5VDC Black pen Freq Input 2 Red s3L S3L Red input GND White Shield A 5VDC Black Input S3L Red GND White Shield Analog Output 1 E if applicable Analog Output 2 E if applicable Signet 2537 Flowmeter GF 3 Wiring 4 20 mA Output The 4 20 mA output can be connected to Chart Recorders PLCs or any device that requires a 4 20 mA signal The 4 20 mA model requires an external power source of 12 32 VDC Power Rating 12 32VDC 0 03 AMP WIRING DIAGRAM Sensor a ees T D 3 2505 614A Wiring Flow Switch Output On Off e The Flow Switch models provide a single relay that is programmable as a HIGH setpoint or LOW setpoint e The relay may be a dry contact type or a solid state type e The dry contact relay requires an external power source of 24 VDC 10 e The solid state relay requires an external power source of 5 to 24 VDC Power Rating E o BINGE ele WIRING DIAGRAM xg a E gt g o uw a5 rH Wiring Pulse Output e The Pulse model provides a single relay that is programmable as a Volumetric pulse output or as a simpl2. Program the DELAY When the flow rate reaches the setpoint the 2537 will wait this long in seconds before triggering the alarm The factory setting is 0000 0 seconds Minimum value Maximum value Signet 2537 Flowmeter Example Change the Relay Logic to Low ao ELT tar Example Change the Setpoint to 8 0000 1 a7 ca p S Example Change the Hysteresis to 5 0000 ca ME 3 ae T Example Change the Delay to 10 0 GFt Save the new setting Return to Go to next Normal Operation menu item Save the new setting 2 REZ amp Ea Return to Go to next Normal Operation menu item Save the new setting Return to Go to next Normal Operation menu item Save the new setting Return to Go to next Normal Operation menu item K Factors When using the PULSE DIVIDER output associated equipment must divide the K factors by the P Factor 2536 8512 XX FITTING ERE GAL PIPE 2536 8512 XX SIZE FITTING CARBON STEEL TEES ON SCH 40 PIPE ah 1a ex Wace 2 CS4T005 756 00 199 74 756 00 STAINLESS STEEL WELDOLETS ON SCH 40 3 4 CS4T007 438 69 115 90 PIPE CS4T010 286 78 75 768 2 4 2 CR4W025 37 600 9 9339 1 1 4 CS4T012 121 22 32 026 3 CR4AW030 24 340 6 4306 2536 8512 XX me ml 7 SON rine oa 2 14 991 Hemme GAL ada STAINLESS STEEL TEES ON SCH 40 PIPE e crawoeo 75200 1 9868 SCH 80 PVC TEES FOR SCH 80 PVC PIPE 2 CR4T005 193 98 a crawoso 4 3400 11466 262 01 14 CR4
3. 159 001 320 Accessories Mfr Part No Code 3 2536 320 1 198 820 052 3 2536 320 2 159 000 272 3 2536 320 3 159 000 273 3 2536 321 198 820 054 3 2536 322 1 198 820 056 3 2536 322 2 198 820 057 3 2536 322 3 198 820 058 M1546 1 198 801 182 M1546 2 198 801 183 M1546 3 198 820 014 M1546 4 198 820 015 P51545 198 820 016 1220 0021 198 801 186 1224 0021 198 820 006 1228 0021 198 820 007 P31536 198 840 201 P31536 2 159 000 649 3 8050 396 159 000 617 3 9000 392 1 159 000 839 3 9000 392 2 159 000 841 3 9000 392 3 159 001 430 7300 7524 159 000 687 7300 1524 159 000 688 7300 3024 159 000 689 7300 5024 159 000 690 7300 1024 159 000 691 GFt Pulse Divider via Dry Contact Relay Integral Mount Pulse Divider via Solid State Relay Integral Mount Flow Switch via Dry Contact Relay Integral Mount Flow Switch via Solid State Relay Integral Mount Digital SSL Integral Mount 4 20 mA Integral Mount Description Rotor PVDF Black Rotor PVDF Natural Rotor Tefzel Rotor and Pin PVDF Natural Sleeved Rotor PVDF Black Sleeved Rotor PVDF Natural Sleeved Rotor Tefzel Rotor Pin Titanium Rotor Pin Hastelloy C Rotor Pin Tantalum Rotor Pin Stainless Steel Rotor Pin Ceramic O Ring FPM O Ring EPDM O Ring FFPM Sensor Plug Polypro Sensor Plug PVDF RC Filter kit for relay use Liquid tight connector kit NPT 1 piece Liquid tight connector kit PG13 5 1 piece Liquid tight connector kit dual cable gland 24 V
4. 9 4 Set Set flow RATE to be represented by4 mA 0 0000 to 99999 page 6 20 Set Set flow RATE to be represented by 20 mA _ 0 0000 to 99999 page 6 Contrast Adjust visibility of liquid crystal display 1 to3 page 6 Signet 2537 Flowmeter GFt Flow Units This function is available on these versions of the 2537 aa eR Select the volumetric units for the flow measurement Liters second Gallons second Liters minute Factory setting Gallons minute Eileremour Gallons hour Liters day Gallons day Example Set the Flow Units to Gallons per minute gt Ae Save the new setting Return to Go to next Normal Operation menu item Set 4 and Set 20 This function is available on these versions of the 2537 These two functions are used to span the 4 20 mA output signal to the required range The factory setting is 4 20 mA 0 to 10 000 Only the 20 mA span is illustrated here Example Set 20 mA 500 GPM Save the new setting 2 EZ GFt K Factor This function is available on these versions of the 2537 A a DoF 420 The factory setting is 60 0000 Locate the K factor in the tables on page 10 Minimum value Maximum value Example Set the K Factor to 63 5 Pulses per Gallon 1 EON Return to Go to next Normal Operation menu item Set Contrast This function is available on these versions of the 2537 All models of the 2537 have the CONTRAST adjustment Itis always located
5. S3L output 10 8 VDC min to 35 2 VDC max Type Serial ASCII TTL level 9600 bps 400 mV max ripple voltage Maximum cable length See SSL specifications 30 mA max current Current output Passive 4 to 20 mA Reverse Polarity and short circuit protected Up to 40V 1 hour Loop Accuracy 32 WA 25 C 24 VDC Over voltage protection 60 VDC 50 VDC Loop resolution 5 yA Temp drift 1 uA per C max Paddlewheel sensor performance specifications Power supply rejection 1 uA per V Pipe Size Range DN15 to DN 200 7 in to 8 in Maximum cable 300 m 1000 ft Min Reynolds Number 4500 Max Loop Resistance 6000 24 VDC 1KQ 32 VDC Paddlewheel Frequency 49 Hz per m s nominal 15 Hz per ft s nominal Standards amp Approvals Operating Range 0 1 m s to 6 m s 0 3 ft s to 20 ft s UL Linearity 1 of max range 25 C 77 F Ce Repeatability 0 5 of max range 25 C 77 F e EN61326 Immunity and Emissions for Control Equipment ae e EN61010 Safety requirements for electrical equipment Electronics performance specifications George Fischer Signet Inc maintains an ISO 9001 Quality Input Frequency Range 1 Hz to 1000 Hz System and an ISO 14001 Environmental System System Response 100 ms update rate nominal Fluid Conditions bar psi 14 200 Pressure Temperature Ratings Polypropylene Body 41 160 e 12 5 bar 180 psi max 20 C 68 F e 1 7 bar 25 psi max 85 C 185 F PVDF Body 8 12
6. 0 e 14 bar 200 psi max 20 C 68 F e 1 7 bar 25 psi max 85 C 185 F 6 80 Intended Use This product is intended for use in industrial water treatment and waste water treatment applications where the chemical content and the fluid temperatures are consistent with the specifications listed herein F 0 40 80 120 160 200 240 This device is not approved for use or installation in flammable liquids oC 48 4 27 49 71 93 115 Location of Fitting me am Outlet oF ange 90 Elbow a Recommended sensor upstream downstream mounting requirements 2 x 90 Elbow ji 3 dimensions Ee 40 x I D les Select a location with sufficient length of straight pipe immediately upstream of the sensor 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 Sensor Mounting Position e Horizontal pipe runs Mount sensor in the upright 0 position for best performance Mount at a maximum of 45 when air bubbles are present pipe must be full Do not mount on the bottom of the pipe when sediments are present Process Pipe e Vertical pipe runs Mount sensor in any orientation however downward flow is not recomended iji Upward flow is preferred to ensure full pipe I
7. 5 9 598 CUKT020 6 310 4 PV8S04 13 456 3 5552 1 4 PV8S06 7 4594 1 9708 1 2 PV8S080 4 5292 1 1966 H Dimensions The plastic insert in Weldolet fittings MUST be removed during the welding process When reinstalled it is important that the insert be threaded to the proper height H dimension 45 CR4W020 2 38 60 45 CR4W025 2 33 99 18 58 92 58 42 78 48 75 18 69 34 Signet 2537 Flowmeter CS4W020 2 38 60 4 CS4W025 2 33 99 16 CS4W030 Tesawoao 230 50 42 esawos0 300 7848 Tesawoso 296 7518 esawoao 273 6034 CR4W030 2 32 CR4W040 2 30 CR4W050 3 09 CR4W060 2 96 CR4W080 2 13 10 GF K Factors a FITTING PVDF FITTINGS DIN ISO AND BS AND ANSI BRE emme 25S6 S12 POLYPROPYLENE FITTINGS DIN ISO AND BS AND ANSI E ae N RE nE a u aE E EEE I Tae EN E Da ae eee ur SEE Ta TEE Ei TET iG Maintenance and Cleaning The 2537 requires very little maintenance e If the paddlewheel becomes fouled it can be cleaned with mild detergents and a small brush e The electronics portion of the 2537 does not require maintenance or cleaning Rotor Replacement Procedure 1 To remove the rotor insert a small screwdriver between the rotor and the ear of the sensor 2 Twist the screwdriver blade to flex the ear outward enough to remove one end of the rotor and pin DO NOT flex the ear any more than necessary If it breaks the sensor cannot be repaired 3 Install the new rotor by inserting on
8. DC Power Supply 7 5 W 300mA 24 VDC Power Supply 15 W 600mA 24 VDC Power Supply 30 W 1 3A 24 VDC Power Supply 50 W 2 1A 24 VDC Power Supply 100 W 4 2A George Fischer Signet Inc 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 2537 090 Rev B 08 06 English Printed in U S A on recycled paper George Fischer Signet Inc 2006
9. Signet 2537 Paddlewheel Flowmeter English MTNA N 3 2537 090 Rev B 08 06 English SAFETY INSTRUCTIONS 1 Depressurize and vent system prior to installation or removal 2 Confirm chemical compatibility before use a 3 Do not exceed maximum temperature pressure specifications S l My fy 4 Wear safety goggles or faceshield during installation service AAW ge 5 Do not alter product construction a 6 lf this equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired 7 This device is not approved for use or installation in hazardous locations Description The 2537 Paddlewheel Flowmeter Series offer low flow low power and high resolution with various output options such as a flow switch pulse divider Digital S3L or 4 20 mA This unit can be configured on site directly through the built in user interface e The Digital model provides a digital SSL output for use with the Signet 8900 Multi Parameter Controller e The 4 20 mA model provides a blind current loop output e The Flow Switch Model uses a single relay mechanical or solid state for Hi or Lo alarm operation e The Pulse model uses a single relay mechanical or solid state and has two selectable operating modes e The Divider mode scales the paddlewheel frequency down to accommodate low frequency input devices e In Total mode the Pulse Model becomes a traditional pump pulser able to ou
10. T007 108 88 CARBON STEEL WELDOLETS ON SCH 40 PIPE 144 03 ee n AE aa orato 33 849 T 15812 iz oRaTots 77 320 20428 T2 1187 CR4TO20 12 095 7 633 GALVANIZED IRON TEES ON SCH 40 PIPE 1 9868 5 42 0 26 1 3 1 1 1 oO 2 A 24 2 PV8T02 42 994 1 359 1 IR4T010 213 01 56 277 CS4W080 4 3400 1 1466 COPPER BRONZE BRAZOLETS ON SCH 40 PIPE 3 9645 SCH 80 CPVC TEES FOR SCH 80 CPVC PIPE 62 01 44 03 3 114 1 4 46 812 2 3 4 PV8T03 26 652 7 0414 1 1 4 33 751 1 1 2 24 941 2 15 699 BRONZE TEES ON SCH 40 PIPE 56 277 1 1 4 33 751 1 1 2 24 941 2 15 699 2 1 2 3 4 5 9 934 6 431 3 678 2 869 1 987 1 147 SCH 80 IRON SADDLES ON SCH 80 PIPE 1 1 1 1 COPPER TEE FITTINGS ON COPPER PIPE 2 SCH K 17 099 11 223 1 2 CPV8T015 117 85 31 137 IR8S02 64 720 SCH 80 PVC SADDLES FOR SCH 80 PVC PIPE aE 2 7 6 z ZOE 6980 TR 1 0 5 0 1 359 eras 4 IR8S040 14 700 3 884 CUKT010 256 43 67 749 3 Pveso30 26 652 7 0414 ye ea ee 5 ee 12 180 3 218 4 PV8S040_ 15 006 _ 3 9645 4 2 CUKTO15 115 69 30 565 Pvesoso 18 3246 2 1994 car aan cae PV8S080_ 15 0164 _ 1 3253 COPPER TEE FITTINGS ON COPPER PIPE SCH 80 PVC SADDLE ON SCH 40 PVC PIPE SCHL 2 PV8S020 54 700 14 452 12 2 1 2 PV8S025 37 159 9 8175 3 4 3 PV8S030 23 697 6 2608 0 0 2 230 1 295 SCH 80 IRON SADDLE ON SCH 40 PIPE 2 CUKT005 226 74 2 1 2 CUKT007 101 91 3 CUKT010 63 841 4 CUKT012 170 90 45 152 CUKT01
11. at the end of the menu 1 C3 on 2 ee Repeat until To access the adjustment enter the menu and scroll until the Contrast display appears There are three levels of adjustment The Font ASt factory setting of 3 is the highest contrast setting Choose ae Save the new setting Return to Go to next Normal Operation menu item Signet 2537 Flowmeter Averaging and Sensitivity Settings e Because ideal flow conditions are often impossible to achieve the flow rate is often erratic which causes any control features ie relays 4 20 mA loops etc that are associated with the flow rate to be erratic e The best solution to these problems is to correct any piping deficiency that causes the instability This may involve longer straight runs upstream reducing the pipe size to maintain a full pipe at all times and other installation changes But in many situations these measures are simply not possible e The 2537 meter provides two tools that are designed to work around these deficiencies The Averaging and the Sensitivity features should be studied before making adjustments Averaging Time in Seconds Factory set 0 seconds e Set the time the meter will use as the averaging period The range is from 0 no average applied to input to 100 seconds of averaging applied to input Use higher averaging times to smooth the display and current output where the flow in the pipe is erratic Quick Response Sensitivit
12. e a EA Goto Previous ii SAVE MODE Store 1X Toggle 1X Change N A This table shows the menu sequence for each model View Mode Function e All models display the model name PulSE diGitAL 4 20 or On OFF e If the white key S1 is held down for 3 three seconds the flow rate is displayed for 10 minutes before reverting back to the model name e In the PulSE Model if the P Set menu item is set to divider then the divided pulse output will be displayed in pulses seconds p s This table shows the definition of each menu function the setting parameters and the page where detailed instructions can be located Menu Function Definition Setting Parameters More Information On Flow Unit Liters or Gallons per sec min hour or day See list on page 6 page 6 K Factor Set PULSES per VOLUME UNIT 0 0001 to 999999 page 6 Average Smooths out erratic flow conditions O to 100 seconds page Sensitivity Overrides Average for large rate changes Oto9 page P Set Select the mode for the PULSE OUT Total or Divider page 8 P Factor As PULSE DIVIDER divides input freq 1 0000 to 99999 page 8 P Factor As PULSE TOTAL multiplies K Factor 1 0000 to 99999 page 8 Relay Logic Select Hi alarm or Lo alarm mode Hi or Lo page 9 Relay Set Set Relay Setpoint 0 0000 to 99999 page 9 Relay Hysteresis Rate inside Setpoint to DEENERGIZE relay 0 0000 to 99999 page 9 Relay Delay Time delay before relay is ENERGIZED 0000 0 to 6400 0 page
13. e pulse divider output e The relay may be a dry contact type or a solid state type e The dry contact relay requires an external power source of 24 VDC 10 e The solid state relay requires an external power source of 5 to 24 VDC Power Rating 24VDC 0 03 AMP WIRING DIAGRAM PW OUT q l 3 WIRING DIAGRAM De CPWSUT Ma ees 5 5 4 GF Internal sensor connections Programmable Logic Controller Datalogger Chart Recorder 4 20 mA Loop monitor Power Supply 12 32 VDC 0 03 A Dry Contact Relay Wiring e The wiring is identical for On Off and Pulse models Blk Red Shid Internal sensor connections Power Supply 24 VDC 0 03 A Normally Open Common Normally Closed Solid State Relay Wiring e The wiring is identical for On Off and Pulse models Mm NEE Ly Lg Blk Red Shlid Power Supply 5 24 VDC 0 03 A 1 Load 5 No Connection Signet 2537 Flowmeter Operation The 2537 Flowmeter is available in 4 different models The i ignifi i Go to Go to programming menus vary significantly from one model to another Display Flow Rate 2s MENU VIEW O eo 1X 3 Display Previous This chart is provided inside the yellow cover to assist in Current Val MODE navigating the menus in the 2537 ao Go to Previous EDIT MODE 1X Shift digit Previous 1X Increment to right MODE TE Valu
14. e tip of the pin into the hole then flex the opposite ear back enough to slip rotor into place Signet 2537 Flowmeter GF 11 Ordering Information Description 2537 system for 0 5 in to 4 in pipes with polypropylene body Black PVDF rotor Titanium pin FPM O rings Pulse Divider via Dry Contact Relay Integral Mount Pulse Divider via Solid State Relay Integral Mount Flow Switch via Dry Contact Relay Integral Mount Flow Switch via Solid State Relay Integral Mount Digital SSL Integral Mount 4 20 mA Integral Mount 2537 system for 5 in to 8 in pipes with polypropylene body Black PVDF rotor Titanium pin FPM O rings Pulse Divider via Dry Contact Relay Integral Mount Pulse Divider via Solid State Relay Integral Mount Flow Switch via Dry Contact Relay Integral Mount Flow Switch via Solid State Relay Integral Mount Digital SSL Integral Mount 4 20 mA Integral Mount 2537 system for 0 5 in to 4 in pipes with natural PVDF body rotor and pin FPM O rings Mfr Part No Code 3 2537 1C PO 159 001 291 3 2537 2C PO 159 001 292 3 2537 3C PO 159 001 293 3 2537 4C PO 159 001 294 3 2537 5C PO 159 001 295 3 2537 6C PO 159 001 296 3 2537 1C P1 159 001 303 3 2537 2C P1 159 001 304 3 2537 3C P1 159 001 305 3 2537 4C P1 159 001 306 3 2537 5C P1 159 001 307 3 2537 6C P1 159 001 308 3 2537 1C T0 159 001 315 3 2537 2C T0 159 001 316 3 2537 3C T0 159 001 317 3 2537 4C T0 159 001 318 3 2537 5C T0 159 001 319 3 2537 6C T0
15. eraging for 50 seconds Example Set the Sensitivity to 5 Save the new setting Save the new setting Signet 2537 Flowmeter GF _ Pulse This function is available on these versions of the 2537 This function is available on these versions of the 2537 Select DIVIDER or TOTAL operation The factory setting is TOTAL The factory setting is 1 0000 PULSE DIVIDER Output Input pulses P Factor Minimum value DIVIDER allows you to set a scaling value P Factor from 1 0000 to 99999 Maximum value Example Ifthe P Factor is set for 2 then the 2537 will output one pulse for every 2 pulses received from the sensor In PULSE DIVIDER mode the P Factor divides AE This selection enables the output frequency to be scaled down The pulse stream from the paddlewheel sensor will be divided to match associated equipment capabilities 2 the P Factor The resulting frequency is output through a relay When using the PULSE DIVIDER output associated equipment must divide the K factors in this manual by the P Factor for In PULSE TOTAL mode the P Factor multiplies correct calibration The pulse stream from the paddlewheel sensor is divided by the K Factor MULTIPLIED by the P factor The resulting frequency is output through a relay 1 2 34 516 718 9 1011 12 Pulses IN Lob kh k l k Pulses OUT EG PULSE TOTAL Output Input pulses K Factor P Factor TOTAL is a tradi
16. nstallation Pipe fittings George Fischer Signet offers a wide selection of installation fittings that control the position of the paddlewheel in relation to the dimensions of the pipe Type Description Type Description Plastic tees e 0 5 to 4 inch versions Iron Carbon Steel e 0 5 to 2 inch versions e PVC or CPVC 316 SS Threaded e Mounts on threaded pipe ends tees Metric e For pipes from DN 15 to 50 mm Carbon steel amp e 2 to 4inch cut 1 7 16 inch hole in pipe Union e PP or PVDF stainless steel e Over 4 inch cut 2 1 8 inch hole in pipe Fitting Weld on Weldolets PVC e 2 to 4 inch cut 1 7 16 inch hole in pipe Saddles e 6 to 8 inch cut 2 1 8 inch hole in pipe Fiberglass e 1 5 inch to 8 in PVDF insert tees amp e gt 8 inch PVC insert saddles FPT FPS lron e 2 to 4 inch cut 1 7 16 inch hole in pipe 7 7 oa ni Metric Ech e For pipes DN 65 to 200 mm Strap on e Over 4 inch cut 2 1 8 inch hole in pipe Wafer Fitting ZT e PP or PVDF saddles o 2 GF Signet 2537 Flowmeter 3 Installation 3 3 Plastic sensor installation tips Dimensions e Inspect the sensor O rings for nicks and other damage that may compromise the seal e Lubricate the sensor O rings with a suitable lubricant before each installation Do not use any petroleum based lubricant lt _ 94mm gt 94 mm 3 7 in 3 7 in which can attack the O rings e Using an alternating twisting motion lower the sensor into the fitting making sure the conduit p
17. orts on the yellow housing are pointing in the direction of flow e Engage one thread of the sensor cap then turn the sensor until the alignment tab is seated in the fitting notch e Hand tighten the sensor cap 171 mm 130 mim 6 73 in 5 in notch DO NOT USE ANY TOOLS ON THE SENSOR CAP 2537 Paddlewheel Flowmeter 2537 Paddlewheel Flowmeter for 2 in to 4 in pipe for 5 to 8 in pipe Wiring Electrical connections to this product should be made only by qualified personnel To access the wiring terminals e Turn yellow cap 1 4 turn counterclockwise to remove e Remove the two retaining screws and remove the black cover e Route all cables through the conduit ports before connecting them to the terminals e Wiring terminals are rated for 16 22 AWG conductors e The cable must be 7 to 10 mm in diameter 0 275 to 0 394 in to seal properly in the liquid tight connector e The conduit ports have 2 inch NPT threads After routing the cables seal the port with a liquid tight conduit connector 3 9000 392 1 or with conduit e For conduit installations e Thread conduit with 2 in NPT threads directly into the conduit port e For conduit with ISO threads use the black thread adapter included with the connector kit e To comply with NEC requirements do not use any metal conduit in the installation SB Using the liquid tight connector Using conduit Wiring Digital S L Output
18. tional pump pulser function This selection will allow the entry of a K Factor to define a volumetric unit then set a P Factor to define the number of volumetric units required to generate one pulse out Example Set the Total Pulse output so there is one pulse out for each 2 gallons that passes the sensor if the K factor is 3 0 1 K Factor 3 0 pulses in per gallon 2 P Factor 2 gallons out per pulse 1 Gal 2 Gal 3 Gal 4 Gal 1234 5 6 7 8 B 1011412 JUUUUUU UY UUU L Pulses IN ID Return to Go to next Normal Operation Pulses OUT menu item Save the new setting 5 SAUE a 2s hs Return to Normal Operation 8 GF Signet 2537 Flowmeter 1 Eg me on Set Relay operation The Flow Switch has one relay SPDT or solid state that can be programmed as a HIGH Hi alarm or a LOW Lo alarm Select HI or LO Relay Alarm logic AHI alarm will be activated when the flow rate rises ABOVE the setpoint ALO alarm will be activated when the flow rate falls BELOW the setpoint The factory setting is Hi gh 2 Program the SETPOINT The SETPOINT is the flow rate where the relay will be energized The factory setting is 5 0000 Minimum value Maximum value 3 Program the HYSTERESIS Hysteresis holds a relay energized until the flow rate moves this amount past the setpoint The factory setting is 0 5000 Minimum value Maximum value 4
19. tput one pulse per a set volume of fluid A small LCD enables the 2537 to be programmed without any external equipment During normal operation the display is not visible Specifications General Wetted Materials Environmental Requirements Model Suffix Sensor Body Rotor Pm Oring Enclosure rating NEMA XIIPOS Storage Temperature 10 C to 75 C Ambient Temperature 0 C to 65 C Relative Humidity 0 to 90 RH non condensing Altitude 2000 m 6562 ft Case PBT yellow Pollution Degree 2 Inside cover Valox black Wiring ports Y2 in NPT threads liquid tight Output specifications connector accepts cables 7 10 mmod Signal Averaging Programmable 0 to 100 seconds 0 275 0 394 in Sensitivity Response Programmable 0 to 9 scale Power requirements Pulse divider Total pulse output Pulse Flow Switch Pulse Divider Setting 1 0000 to 99999 With dry contact relay 24 VDC nominal Maximum pulse rate 300 Hz 21 6 VDC min to 26 4 VDC max Maximum pulse width 50 ms 30 mA max current Flow switch output With solid state relay 5 to 24 VDC nominal Relay Modes Low High 5 0 VDC min to 26 4 VDC max Time Delay 0 0 to 6400 0 seconds 30 mA max current Hysteresis Adjustable in Engineering Units Digital SSL 5 VDC nominal Relay Specifications 5 0 VDC min to 6 5 VDC max _ Mechanical SPDT 5A 30 VDC 5A 250VAC 30 mA max current 1 5 mA nominal Solid State Relay 100mA 40VDC 70 mA 33 VAC 4 20 mA 12 VDC to 32 VDC nominal Digital
20. y Factory set 0 e Set the relative degree of change in the flow rate required to allow the 2537 to disable the AVERAGING and jump to a new flow rate immediately The scale is from 0 Least sensitive averaging is never disabled to 9 a very small change in flow rate will disable the averaging mamm No AVERAGING no SENSITIVITY e ka With AVERAGING set to 0 zero and with SENSITIVITY set to zero wane Sak i c r w the 2537 responds to every unstable shift in the flow The dashed gt oan in red line represents the actual output of the flow sensor in unstable S flow conditions EEEREHEHENN AVERAGING only With AVERAGING set to 50 seconds and SENSITIVITY still set to a zero the flow rate is stabilized but a sharp change in flow rate is not a represented for 50 seconds or longer dotted green line mmm AVERAGING and SENSITIVITY With AVERAGING at 50 seconds and SENSITIVITY set to 4 OR 5 the flow rate is stabilized while the sudden shift in flow is reflected 2s 10s 20s 30s very quickly Solid blue line 40s 50s 60s 70s NOTE The SENSITIVITY function is ineffective if the AVERAGING function is set to zero seconds Set Averaging This function is available on these versions of the 2537 The factory setting is O zero Minimum value Set Sensitivity This function is available on these versions of the 2537 The factory setting is O zero Minimum value Maximum value Maximum value Example Set the Av
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