Installation Instructions For EZ-View® Flow Meter and EZ
Contents
1. Figure 10 Reed Switches powered units When the magnet inside the flow meter comes within proximity of the module the reed switch will change state See Figure 10 The setpoint is adjustable from 0 100 of full scale Two reed switch Flow Alerts may be installed on a single flow meter but one must be set for activation on increasing flow and the second must be set for activation on decreasing flow Reed Switch Reed Switch Reed Switch Specifications AC Latching DC Latching Specifications FOMA mao Foonie ramen ESC Emeeen aed Voltage 115 VAC 10 10 30 VDC Operating Current Current 25 mA maximum 1A 30 VDC 0 5A 125 VAC Resistive Load Contact Rating Enclosure Rating Watts Max Voltage Max Current Max Not Included eee 2 ins A 25A 25A 3 ft 24 AWG 3 ft 20 AWG 3 ft 24 AWG 2 Conductor 2 Conductor 3 Conductor PVC Jacket PVC Jacket PVC Jacket NEMA 12 amp 13 IP65 Page 8 HEDLAND EZ View Flow Meter and EZ View Flow Alert Flow Meter Installation amp Maintenance Instructions Ft dite T 1 t 5 1 ITE i ITE re a vin x te Care boom Meter shown upside down Figure 11 Latching Switch Installation Switches Positioned for Activation on Increasing Flow Switch Positioned for Activation on Decreasing Flow Fig2. Form HLIT300 5 09 2009 Racine Federated Inc Printed in USA
3. V FLOW ALERT SWITCH OPTIONS NOTE All Flow Alert switches are magnetically triggered It is not possible to add a switch to the basic meter if it was not originally ordered with the switching magnet Flow Alert Latching Limit Switch The AC and DC powered Flow Alert modules consist of a relay circuit housed in a sealed plastic enclosure The modules have a normally open dry relay contact that can On Switch 3 Contacts N Deadband Off Full Scale gt FLOW DIRECTION Figure 9 Latching Switches Flow Alert Reed Limit Switch The reed switch Flow Alert modules are available in three forms Form A normally open Form B normally closed and Form C single pole double throw Reed switches are housed in a sealed plastic enclosure for environmental protection The reed switch modules do not provide a latching function like the AC and DC Switch Specifications be used to directly control alarms warning lights relays or interface to a PLC The relay will be latched on as the magnet inside the flow meter passes by the module and remain latched on until the magnet passes in the other direction or power is interrupted See Figure 9 The setpoint is adjustable from 0 100 of full scale Flow meters can be equipped with one latching limit switch either AC or DC 15 25 Of Scale On Switch Contacts FLOW DIRECTION
4. sure to align the Flow Arrow located on the bottom of the meter s flow scale in the same direction as the anticipated line flow See Figure 3 Mounting Orientation The meter can be installed to operate in any position H621 XXX 1 NPT Models See Figure 4 1 Apply a single layer of Teflon tape to the male NPT threads of the flow meter Thread the flow meter inlet into a 1 NPT plastic female pipe coupling Thread the flow meter and coupling onto the inlet pipe and hand tighten Make sure the flow direction arrow on the flow meter corresponds with the system flow direction See Figure 3 Place an open end wrench on the flow meter body hex and place a pipe wrench on the metal mating pipe Tighten until snug DO NOT overtighten Make sure the flow meter scale is oriented for convenient viewing DO NOT back off unscrew fittings to rotate scale for better viewing Flow Direction Indicator Figure 3 Flow Direction Indicator Thread a 1 NPT plastic pipe coupling to the outlet connection of the flow meter Stack a pipe nipple and half of a pipe union onto the pipe coupling Tighten the assembly as required Install the other half of the pipe union to the outlet pipe and connect the union halves together Piping should be supported and aligned properly to avoid placing stress on the flow meter body Slide the li
5. Installation Instructions For EZ View Flow Meter and EZ View Flow Alert Flow Meter HEDLAND DIVISION OF RACINE FEDERATED INC FORM HLIT 300 8635 Washington Avenue Racine Wisconsin 53406 3738 USA TEL 800 HEDLAND FAX 800 CHK FLOW l INTRODUCTION The EZ View series flow meter is a rugged low cost direct reading industrial class flow meter that is simple to install It can be mounted installed in any position from vertical to horizontal without costly flow straighteners or other special plumbing Constructed of high impact polysulfone plastic the EZ View product line offers excellent structural integrity and chemical compatibility with a wide range of industrial chemicals EZ View flow meters provide instantaneous direct reading flow rate measurement of liquids in closed piping systems The transparent polysulfone plastic body allows visual inspection of the fluid condition as well as viewing of the internal flow indicator relative to a calibrated flow scale See Figure 1 EZ View meters do not require electrical connections for operation and provide measurement by creating a predictable differential pressure across a sharp edged orifice that is located in the piston assembly ll OPERATING PRINCIPLE The EZ View series flow meter is a piston type variable area flow meter that uses a sharp edged annular orifice formed between an open centered piston and a tapered metering cone The piston
6. Switch Module Contacts DC Relay Contact Example shows a secondary slave relay with a DC coil integrated with the DC switch module This combination allows switching of loads up to the rating of the relay contacts Figure 16 AC Conventional Connection NOTE Load limited by relay contacts Figure 19 DC Conventional Secondary Connections Page 10 HEDLAND EZ View Flow Meter and EZ View Flow Alert Flow Meter i Installation amp Maintenance Instructions FORM A FORM B LEFT RIGHT N lly O N lly CI d Normally Open Normally Closed SIDE SIDE oe RED BLACK BLACK eon WHITE FORM C l L BLACK al i T 8 1 Normally Closed UG Common K em RED Normally Open Figure 20 Form A B amp C Flow Alert Reed Switch Installation 1 Install the switch on the flow meter by placing the adjustment arm over the serrated rail from the inlet end of the 1 2 3 4 and 1 meters or the outlet end of the 1 1 2 and 2 meters Each meter will accept FLOW DIRECTION up to two reed switches and the switch es for 1 2 3 4 and 1 meters must be installed before the meter Figure 21 Switch Orientation is plumbed into the system 2 Flow Alert reed switches are available in three configurations Form A normally open Form B A WARNING FAIL SAFE OPERATION normally closed and Form C SPDT Wire color codes and switch configurat
7. Rating e 325 PSI 22 4 bar Maximum e Meters with Type 1 PVC fitting subject to normal PVC system ratings Temperature Range e 32 F to 250 F 0 C to 121 C e 32 F to 140 F 0 C to 60 C for meters with Type 1 PVC fittings Pressure Drop See Pressure Drop Charts on page 14 Fittings Threads e NPT ANSI ASME B1 20 1 e BSPT ISOR7 BSPP ISO228 Dimensions j LENGTH 1 2 3 4 amp 1 Sizes Size amp Type Connection Length Size amp Type Connection Length in mm in mm Materials wetted e Body 1 2 3 4 amp 1 sizes Polysulfone or Radel 1 1 2 amp 2 sizes Radel e Piston Polysulfone Cone 1 2 3 4 amp 1 sizes 1 1 2 amp 2 sizes Polysulfone or Radel Polysulfone Spring T300 Stainless Steel e Retaining Rings PH15 7MO Stainless Steel e Seals Buna N e Indicator Ring Buna N e Limit Indicators Polypropylene e Magnet Strontium Ferrite switching units only e Fittings C360 Brass PVC or T303 Stainless Steel Materials non wetted e Limit Indicator Scale Polypropylene Polyester Material Compatibility e See Fluid Selection Chart on page 13 Calibration Fluid e Oil Water 0 876 specific gravity 32 cSt viscosity 1 0 specific gravity 1 0 cSt viscosity p _3 25 82 5 BODY FLATS LENGTH IET i lke 1 1 2 amp
8. is held in a no flow position at the base of the cone by a precision retention spring As flow in the pipe increases the differential pressure correspondingly increases across the piston orifice and moves the piston flow indicator against the spring The greater the flow rate the further the piston moves along the tapered metering cone The flow rate is measured by viewing the red indicator ring mounted on the piston relative to a graduated flow scale located on the transparent flow meter body See Figure 2 Limit Indicator i gt a i y Metering Cone a Serrated Rail Flow Scale lt Magnet Switching Models Only a 7 Flow Indicator Pressure Seal Figure 1 EZ View Flow Meter The unique design allows the EZ View meter to be mounted in any orientation horizontal vertical upside down etc withoutsacrificing measurement performance Flow straighteners located in the inlet and outlet allow the flow meter to be less sensitive to turbulent flow conditions Liquid measurements are provided in GPM Gallons per Minute and LPM Liters per Minute Flow Rate His re Indicator ty W Lae cm ani Figure 2 Flow Rate Indicator Page 1 HEDLAND EZ View Flow Meter and EZ View Flow Alert Flow Meter Installation amp Maintenance Instructions lll SPECIFICATIONS Accuracy e 5 of full scale Repeatability e 1 Pressure
9. 2 Sizes 1 2 NPTF amp Brass amp SS Female 7 75 1 50 1 1 2 NPTF amp Brass Female 8 72 3 00 BSPT 196 8 38 1 BSPP 221 5 76 2 3 4 NPTF amp Brass 8 25 1 50 1 1 2 Socket Socket Weld 12 72 N A BSPT 209 5 38 1 Weld 323 1 3 4 amp Brass Male 7 75 1 50 2 NPTF amp Brass Female 8 72 3 00 1 Sweat Brass Sweat 196 8 38 1 BSPP 221 5 76 2 1 NPTF Polysulfone 5 25 N A 2 Socket PVC Socket Weld 11 48 N A 133 3 Weld 291 6 1 Nominal Socket Weld 8 46 1 54 214 9 39 1 1 NPTF 8 86 1 50 225 0 38 1 Page 2 HEDLAND EZ View Flow Meter and EZ View Flow Alert Flow Meter Installation amp Maintenance Instructions IV INSTALLATION This unit should be installed and serviced by technically qualified personnel trained in maintaining industrial class flow instrumentation and processing equipment Read instructions thoroughly before installing the unit If you have any questions regarding product installation or maintenance call your local supplier for more information Installation Recommendations The flow meter is a simple device to install However the following measures are recommended for reliable trouble free operation A CAUTION Liquid pipe sealants PVC CPVC primers and PVC CPVC cements contain solvents that are not compatible with polysulfone plastic Allowing liquid pipe sealants to contact the plastic flow meter will result in weakening of the flow meter body and po
10. IL amp WATER METERS PRESSURE DROP PSID 0 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 0 90 0 100 0 FLOW GPM Page 14 HEDLAND EZ View Flow Meter and EZ View Flow Alert Flow Meter i Installation amp Maintenance Instructions NOTES Page 15 EZ View Flow Meter and EZ View Flow Alert Flow Meter Installation amp Maintenance Instructions HEDLAND LIMITED WARRANTY and DISCLAIMER Hedland division of Racine Federated Inc warrants to the end purchaser for a period of one year from the date of shipment from the factory that all flow meters manufactured by it are free from defects in materials and workmanship This warranty does not cover products that have been damaged due to misapplication abuse lack of maintenance or improper installation Hedland s obligation under this warranty is limited to the repair or replacement of a defective product at no charge to the end purchaser if the product is inspected by Hedland and found to be defective Repair or replacement is at Hedland s discretion A returned goods authorization number must be obtained from Hedland before any product may be returned for warranty repair or replacement The product must be thoroughly cleaned and any process chemicals removed before it will be accepted for return The purchaser must determine the applicability of the product for its desired use and assumes all risks in connection therewith Hedland assumes no responsibility or liabilit
11. In Here P Lug Polarity Pin Gasket E q Figure 13 Latching Switch Installation Page 9 HEDLAND EZ View Flow Meter and EZ View Flow Alert Flow Meter Installation amp Maintenance Instructions Strain Relief Nut Body 7 a E o o Solder Lug c a 4 Polarity Pin o o lt lt Switch Module Contacts DC Switch AC Switch Pin Function Pin Function AC Relay Contact 1 Relay NO 1 Relay NO 2 DC 2 AC Supply Example shows a secondary slave relay with a 115 VAC coil T C integrated with the AC switch module This combination allows 3 Relay Common 3 Relay Common switching of loads up to the rating of the relay contacts 4 DC 4 AC Supply NOTE Load limited by relay contacts Figure 14 Latching Switch Installation Polarity Pin Figure 15 Polarity Pin Flow Alert Latching Switch AC Wiring Configuration A WARNING All wiring should be made in accordance with the National Electrical Code and must conform to any applicable state and local codes AC Line AC Line Switch Module Contacts NOTE Load must be within specified contact rating range 1A 30 VDC 500 mA 125 VAC Figure 17 AC Conventional Secondary Connections 10 30 VDC DC Ground Switch Module Contacts Figure 18 DC Conventional Connection 10 30 VDC DC Ground
12. Metal Threaded End Fittings See Figure 8 1 Apply Teflon tape to the male pipe thread connections CAUTION 2 Thread the inlet of the flow meter onto the appropriate pipe connection Make sure the flow direction arrow on the flow meter corresponds with the system flow direction See Figure 3 on page 4 Do not tighten the flow meter by wrenching from the opposite fitting as the meter body could crack 3 Tighten flow meter connection by placing an open end wrench on the flow meter metal connection adjacent to the pipe that is being attached Tighten until snug EO a Make sure flow meter scale is oriented for convenient Slide the limit indicators to point to appropriate viewing DO NOT overtighten DO NOT back off positions on the flow meter scale To remove the limit unscrew to rotate scale for better viewing indicators slide them fully towards the flow meter outlet 4 Install a union fitting at the outlet end of the flow z meter NOTE To replace meter body order P N H622 XXX 5 Piping should be supported and aligned properly to avoid placing stress on the flow meter body Pipe Support z Metal Pipe Figure 8 All Models w Female Metal Threaded End Fittings Installation Page 7 HEDLAND EZ View Flow Meter and EZ View Flow Alert Flow Meter Installation amp Maintenance Instructions
13. e outlet side Clean the internal components and reassemble Disassembly NOTE Models with a 1 body it is necessary to remove the spring retaining clip located at the flow meter outlet port NOTE Models with a 2 body can be serviced by removing the two end fittings then sliding the metering pin out from the inlet and removing the piston and spring from the outlet 1 Measure the insertion depth of the retaining ring into the flow meter body with a caliper or other measuring device 2 Carefully remove the retaining clip with a small flathead screwdriver 3 Remove the spring and piston assembly 4 Clean the inside of the flow meter body and piston assembly with denatured alcohol or mild detergent and water 5 Reassemblethe meter in reverse order of disassembly Install the retaining ring to the depth measured in step 1 Use a deep socket of approximately 0 9 diameter and hand pressure to install the retaining ring VI APPENDIX Fluid Correction Standard Flow Scales Standard liquid flow scales are calibrated in GPM Gallons per Minute and LPM Liters per Minute at 0 876 specific gravity for petroleum based fluids and 1 0 specific gravity for water and water based fluids For field conversion of the standard scale to other fluids see Density Effect below Special Flow Scales Special scales are available for liquids in any measurement unit and other fluid viscosities and or specific gravities Visc
14. g Plumbing A CAUTION To avoid unnecessary pipe flexing that could cause structural stress on the flow meter body independent support located as near as possible to the inlet and outlet of the meter should be used to isolate the meter from the piping system Failure to provide this support could reduce the life of the meter Piping should be properly aligned with the meter inlet and outlet to minimize structural stress on the plastic meter body Special attention should be given to this effort if higher operational pressures and or temperatures are anticipated Piping should be firmly supported by external mounting brackets both upstream and downstream from the meter to avoid any pipe flexing that could reduce the life of the meter 1 If the flow meter inlet or outlet are to be rigidly mounted and the opposing port is to be connected to a flexible hose the end connected to the flexible hose MUST be rigidly mounted 2 This unique design does not require special plumbing or accessories to stabilize turbulent flow Flow meters can be installed immediately adjacent to 90 elbows or other components providing system design flexibility 3 A200 mesh 74 micron or better filtration is required to assure reliable performance Page 3 HEDLAND EZ View Flow Meter and EZ View Flow Alert Flow Meter Installation amp Maintenance Instructions Flow Direction These meters only accept flow in one direction Make
15. ions are shown in If the flow meter and switch are to be installed in a Figure 20 critical application be sure the system is fail safe The switch should be wired so any switch failure will stop Flow Alert Reed Switch Adjustment the system Failure to fail safe the system may lead to system damage and or personal injury After the flow meter has been installed and the switch wired the flow rate at which the switch will activate must be adjusted as follows 1 With the fluid running through the meter gently move the switch adjustment tab s outward until the switch body is free to slide up or down on the serrated rail See Figure 21 2 Move the switch into position until the switch activates See Figure 21 3 Release the switch adjustment tab s to set the switch position Page 11 HEDLAND EZ View Flow Meter and EZ View Flow Alert Flow Meter Installation amp Maintenance Instructions VI MAINTENANCE EZ View Flow Meters are designed to provide many years of service with little or no maintenance requirements Periodic cleaning may be required e Clean the outside of the flow meter with denatured alcohol or mild detergent and warm water e Should the inside of the flow meter become stained it can be disassembled for cleaning e Should the flow meter become jammed with particulate the meter will require disassembly as described below The piston assembly should be pushed out from the inlet side to th
16. ly Teflon tape to the male pipe thread connections onto the flow meter body 3 Place the brass or stainless steel hex coupler onto 9 Rotate the flow meter body such that the scale can be the pipe with the threads facing the flow meter conveniently viewed Tighten hex couplers Typically only hand tightening is required 4 Thread the flow meter fittings onto the mating fe 10 Piping should be supported and aligned properly to ie id placing st the fl ter bod avoid placing stress on the flow meter body 5 Tighten fittings by placing an open end wrench onto ae E y the fitting and a pipe wrench onto the mating pipe 11 Slide the limit indicators to point to appropriate positions on the flow meter scale To remove the limit indicators slide them fully towards the flow meter 7 Lubricate the two O rings removed in step 1 Place outlet the O rings onto the threaded fittings NOTE To replace meter body order P N H622 XXX 8 Place flow meter between the two installed fittings Make sure the flow direction arrow on the flow meter 6 Repeat steps 3 5 for the other flow meter fitting Pipe Support f ae ls i gt Figure 7 All Models w Male Metal or PVC Threaded End Fittings Installation Page 6 HEDLAND EZ View Flow Meter and EZ View Flow Alert Flow Meter Installation amp Maintenance Instructions All Models with Female
17. mit indicators to pointto appropriate positions on the flow meter scale To remove the limit indicators slide them fully towards the flow meter outlet Pipe Support Plastic Coupling ie Plastic Coupling ae m Metal Pipe Union Figure 4 Model H621 XXX 1 NPT Models Installation Page 4 EZ View Flow Meter and EZ View Flow Alert Flow Meter Installation amp Maintenance Instructions HEDLAND H628 XXX 1 H636 XXX 1 1 2 and H619 XXX 2 PVC with Socket Weld Models See Figure 5 1 Remove the two end fittings from the flow meter Lubricate the O rings and install the fittings onto the flow meter 4 A CAUTION 5 into their mating components and twisting 1 8 turn to guarantee adhesion Allow sufficient drying time Using the method outlined in steps 2 amp 3 apply 1 2 of the PVC union to the flow meter outlet fitting Install the other 1 2 PVC pipe union to the outlet pipe Liquid pipe sealants PVC CPVC primers and PVC CPVC cements contain solvents that are not compatible with polysulfone plastic Allowing liquid pipe sealants to contact the plastic flow meter will result in weakening of the flow meter body and potentially cause fracturing under pressure 6 Make sure the flow direction arrow on the flow meter corresponds with the system flow direction See Figure 3 on page 4 Lubrica
18. ne Glycol 50 50 1 12 0 884 Freon II 1 46 0 774 Gasoline 0 70 1 119 Glycerin 1 26 0 834 Kerosene Liquid Propane LPG Mineral Oil 0 92 0 976 Naphtha 0 76 1 074 Perchloroethylene 1 62 0 735 Petroleum Oil 0 876 1 000 Phosphate Ester 1 18 0 862 Phosphate Ester Base 1 26 0 833 Phosphoric Acid Air Free 1 78 0 701 Sea Water Synthetic Petroleum Base D D D Z Z D D D D D D D D D D D D D O D Z D D d PH157 MO Stainless 3 oOj zZz zZz 0 3 D Z zZ D D D D D 3 Z 3 0 O oj A Z C360 Brass D D D D O Z Z D D D D D D D D Z D D 3 Z Z o z d Z O BunaN DID D D D D Z Z D Z Z D Z D D D Z D D O Z Z D D D Z D Water 1 00 0 936 1 000 Water Glycol 50 50 1 07 0 950 0 967 Water in Oil 0 93 0 970 R RIR DD D D Z Z D D D D D D D D D D D D D O D Z D D D D D D D D D D Z Z D Z Z D D D DOZ D Z O Z Z D D vA 2 a DID D D Z Z D D D D D D D D D D D D D O D Z D D D D R Recommended N Not Recommended C Consult Factory Page 13 HEDVAND EZ View Flow Meter and EZ View Flow Alert Flow Meter Installation amp Maintenance Instructions Pressure Drop Charts y 34 1 OIL amp WATER METERS PRESSURE DROP PSID 0 3 6 9 12 145 418 2 24 27 30 FLOW GPM 12 2 O
19. o the fitting Repeat steps 3 amp 4 for the other flow meter fitting Allow fittings to cool Lubricate the two O rings removed in step 1 Place the O rings onto the brass fittings 7 Place the flow meter in between the two installed brass fittings Make sure the flow direction arrow on the flow meter corresponds with the system flow direction See Figure on page 4 Thread the two brass hex couplers into the flow meter body 8 Rotate the flow meter body so the scale can be conveniently viewed Tighten the hex couplers Typically only hand tightening is required 9 Piping should be supported and aligned properly to avoid placing stress on the flow meter body 10 Slide the limit indicators to point to appropriate positions on the flow meter scale To remove the limit indicators slide them fully towards the flow meter outlet NOTE To replace meter body order PN H622 XXxX Page 5 HEDLAND EZ View Flow Meter and EZ View Flow Alert Flow Meter i Installation amp Maintenance Instructions Pipe Support Figure 6 Model H620 XXX Brass Sweat Fitting Models Installation All Models with Male Metal or PVC Threaded End Fittings See Figure 7 1 Remove both fittings from the flow meter inlet and corresponds with the system flow direction See outlet Remove O rings from the fittings Figure 3 on page 4 Thread the two hex couplers 2 App
20. osity Effect SS cSt The design utilizes a sharp edged orifice and biasing calibration spring that ensures operating stability and accuracy over the wide viscosity range common to many fluids Generally high flow models of each meter size provide good accuracy over a viscosity range of 40 to 500 SUS 4 2 to 108 cSt Density Effect Specific Gravity Any fluid density change from stated standards has a proportional effect on meter accuracy Special scales can be supplied if actual specific gravity decreases accuracy beyond application limits Corrections for more or less dense fluids can be made to standard scales using the following correction factor a i Specific Gravity for water water based meters 0 876 i Specific Gravity for petroleum based meters Page 12 HEDLAND EZ View Flow Meter and EZ View Flow Alert Flow Meter Installation amp Maintenance Instructions Fluid Selection Chart contrat Fittings components Correction Factor of 2 i a or 0j 2 Fluid Specific Standard S g g Gravity Scales S gt S 3 H ae Sis 2 8 Oil Water Q zig Acetic Acid Air Free 1 06 0 909 0 971 Acetone 0 79 1 053 1 125 Alcohol Butyl Butanol Alcohol Ethyl Ethanol 0 83 1 027 Ammonia 0 89 0 992 Benzene 0 69 1 127 Carbon Disulfide 1 26 0 834 Castor Oil 0 97 0 950 Cotton Seed Oil 0 93 0 970 Ethyle
21. te the union O ring and connect the union together Piping should be supported and aligned properly to avoid placing stress on the flow meter body Prepare the flow meter PVC fittings and PVC pipe couplings with PVC cleaner solvent Apply a thin layer of PVC glue to the PVC flow meter fittings Orient the meter during curing to ensure that excessive glue will not run into or onto the flow meter Connect all PVC glue joints by inserting the pipes fully 8 Slide the limit indicators to point to appropriate positions on the flow meter scale To remove the limit indicators slide them fully towards the flow meter outlet NOTE To replace meter body order P N H622 XXX Pipe Support o Union F Coupling Ji ED a PVC Pipe Figure 5 Model H628 XXX 1 H636 XXX 1 1 2 amp H619 XXX 2 PVC Socket Weld Models Installation H620 XXX Brass Sweat Fitting Models See Figure 6 on page 6 1 Remove both brass fittings from the flow meter inlet and outlet Remove O rings from the fittings Apply solder flux to the flow meter brass fittings and mating pipe surfaces Place the brass hex coupler onto the pipe with the thread facing the flow meter Slide the brass sweat fitting onto the prepared pipe Sweat the fittings onto the pipe DO NOT apply heat to the brass flow meter fitting with the plastic flow meter body or seals attached t
22. tentially cause fracturing under pressure Don t Allow liquid pipe sealant PVC CPVC primer or PVC CPVC cements to come into contact with the plastic flow meter These contain solvents that are not compatible with polysulfone plastic and will result in the flow meter body weakening and potentially fracturing under pressure If a pipe sealant is required use of Teflon tape is recommended Don t Install the flow meter in piping systems that are not aligned or properly supported Don t Connect the flow meter male plastic NPT fittings to female metal NPT couplings Differences in coefficients of expansion between metals and plastics can cause the plastic flow meter body to crack Utilize a female to female plastic pipe coupling to connect metal pipe to the plastic flow meter Don t Use pipe wrenches on the flow meter body To avoid scarring or otherwise damaging the external surface use an open end wrench on the integral hex flats during installation Don t Subject the flow meter to back pressure or back flow The flow meter will operate as a leaky check valve when subjected to reverse flow but can be damaged if the reverse hydraulic horsepower is too great Don t Install the flow meter on systems with large degrees of particulate contamination Minimum filtration of 200 mesh 74 micron is recommended for trouble free operation Don t Install O ring seals that have not been lubricated Pipin
23. ure 12 Latching Switch Installation Flow Alert Reed Limit Switch 1 Install one end of the vibration locking kit onto the LPM side of the meter s serrated rail as shown in Figure 11 Install the switch by placing the adjustment arm over the serrated rail from the inlet end of the 1 2 3 4 and 1 meters or the outlet end of the 1 1 2 or 2 meters The direction of the connector and cable assembly indicates whether the switch will activate on increasing flow connector and cable pointing down See Figure 12 Secure the other end of the vibration locking kit and tighten after positioning 2 The connector has four solder lugs labeled 1 2 3 and 4 Soldering wires to the terminals first requires disassembly of the connector as shown in Figure 13 The specific wiring pinouts for each style latching switch are show in Figure 14 on page 10 NOTE Before reassembly it is recommended to label each wire with the corresponding lug position 3 After securing wires to solder lugs determine which direction the body of the connector should face Before snapping the connector into place refer to Figure 15 on page 10 4 After selecting direction A B or C snap connector back together pull the excess wire out of the strain relief then tighten the strain relief nut Plug the connector into the switch module and secure with the screw provided Strain Relief Nut A A Loosen Strain Relief B L Nut and Run 4 l L_ Wires
24. y for any omissions or errors in connection with the use of its products Hedland will under no circumstances be liable for any incidental consequential contingent or special damages or loss to any person or property arising out of the failure of any product component or accessory All expressed or implied warranties including the implied warranty of merchantability and the implied warranty of fitness for a particular purpose or application are expressly disclaimed and shall not apply to any products sold or services rendered by Hedland The above warranty supersedes and is in lieu of all other warranties either expressed or implied and all other obligations or liabilities No agent or representative has any authority to alter the terms of this warranty in any way 8635 Washington Avenue Racine WI 53406 3738 USA Telephone 262 639 6770 or 800 HEDLAND Fax 262 639 2267 or 800 CHK FLOW 3 www hediand com _hedlandtechhelp racinefed com DIVISION OF RACINE FEDERATED INC Materials amp specifications are subject to change without notice HEDLAND and EZ VIEW are registered trademarks of Racine Federated Inc Flow Alert is a trademark of Racine Federated Inc National Electric Code is a registered trademark of NFPA Radel is a registered trademark of Union Carbide Corporation Teflon is a registered trademark of E I duPont de Nemours and Company RFD Racine Flow Meter Group Hlanecell DYNASONICS Flo tech H i AN l PRESO racine
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