Hedland EZ-View Operating Manual

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Page 1

Installation Instructions For

EZ-View® Flow Meter and

EZ-View

Flow-Alert™ Flow Meter

8635 Washington Avenue • Racine • Wisconsin 53406-3738 USA

FORM # HLIT 300

I. INTRODUCTION

The EZ-View series ow meter is a rugged, low-cost direct reading industrial class ow meter that is simple to install. It can be mounted (installed) in any position from vertical to horizontal without costly ow 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 ow meters provide instantaneous, directreading ow rate measurement of liquids in closed piping systems. The transparent polysulfone plastic body allows visual inspection of the uid condition as well as viewing of the internal ow indicator relative to a calibrated ow 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 orice that is located in the piston assembly.

II. OPERATING PRINCIPLE

The EZ-View series ow meter is a piston-type variable area ow meter that uses a sharp-edged annular orice, formed between an open-centered piston and a tapered metering cone. The piston is held in a “no-ow” position at the base of the cone by a precision retention spring. As ow in the pipe increases, the differential pressure correspondingly increases across the piston orice, and moves the piston/ow indicator against the spring. The greater the ow rate, the further the piston moves along the tapered metering cone. The ow rate is measured by viewing the red indicator ring, mounted on the piston, relative to a graduated ow scale located on the transparent ow meter body. See Figure 2.

DIVISION OF RACINE FEDERATED INC.

TEL 800-HEDLAND • FAX 800-CHK-FLOW

End Fitting

Body

Spring

Limit Indicator

Flow Scale

Magnet

(Switching Models Only)

Metering Cone

Serrated Rail

Piston Assembly

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.–without sacricing measurement performance. Flow straighteners, located in the inlet and outlet, allow the ow meter to be less sensitive to turbulent ow conditions. Liquid measurements are provided in GPM (Gallons per Minute) and LPM (Liters per Minute).

GPM

LPM

Flow Rate Indicator

Figure 2. Flow Rate Indicator

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EZ-View Flow Meter and EZ-View Flow-Alert Flow Meter

Installation & Maintenance Instructions

III. SPECIFICATIONS

Accuracy

• ±5% of full scale

Repeatability

• ±1%

Pressure Rating

• 325 PSI (22.4 bar) Maximum

• Meters with Type 1 PVC fitting subject to normal PVC system ratings

Temperature Range

• +32 °F to +250 °F (0 °C to +121 °C)

• +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

• NPT ANSI/ASME B1.20.1

• BSPT ISOR7

• BSPP ISO228

Dimensions

1.78

(45.2)

1.37

(34.8)

BODY FLATS

LENGTH

LPM

2040608090

CAUTION

1. Only use Teflon tape to seal threaded fittings. DO NOT use pipe dope.

2. DO NOT sweat fit adaptor fittings into a system while mounted to the EZ-VIEW meter.

Materials (wetted)

• Body ½", ¾" & 1" sizes Polysulfone or Radel 1-½" & 2" sizes Radel

• Piston Polysulfone

• Cone ½", ¾" & 1" sizes Polysulfone or Radel 1-½" & 2" sizes Polysulfone

• Spring T300 Stainless Steel

• Retaining Rings PH15-7MO Stainless Steel

• Seals Buna-N

• Indicator Ring Buna-N

• Magnet Strontium Ferrite

(switching units only)

• Fittings C360 Brass, PVC or T303 Stainless Steel

Materials (non-wetted)

• Limit Indicator Polypropylene

• Scale Polyester

Material Compatibility

• See Fluid Selection Chart on page 13

Calibration Fluid

• Oil 0.876 specific gravity, 32 cSt viscosity

• Water 1.0 specific gravity, 1.0 cSt viscosity

3.25 (82.5)

BODY FLATS

LENGTH

½", ¾" & 1" Sizes 1-½" & 2" Sizes

Size & Type Material Connection Length

in (mm)

½" NPTF &

BSPT

¾" NPTF &

BSPT

¾" &

1" Sweat 1" NPTF Polysulfone Male 5.25

1" Nominal PVC Socket Weld 8.46

1" NPTF PVC Male 8.86

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Brass & SS Female 7.75

Brass Male 8.25

Brass Brass

Male

Sweat

(196.8)

(209.5)

7.75

(196.8)

(133.3)

(214.9)

(225.0)

Fitting

Flats

in (mm)

1.50

(38.1)

1.50

(38.1)

1.50

(38.1)

N/A 2" Socket

1.54

(39.1)

1.50

(38.1)

Size & Type Material Connection Length

1-½" NPTF &

BSPP

1-½" Socket

Weld

2" NPTF &

BSPP

Weld

Fitting

in (mm)

Brass Female 8.72

(221.5)

PVC Socket Weld 12.72

(323.1)

Brass Female 8.72

(221.5)

PVC Socket Weld 11.48

(291.6)

-- -- -- -- --

Flats

in (mm)

3.00

(76.2)

3.00

(76.2)

N/A

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EZ-View Flow Meter and EZ-View Flow-Alert Flow Meter

Installation & Maintenance Instructions

IV. INSTALLATION

CAUTION

This unit should be installed and serviced by technically qualied personnel trained in maintaining industrial class ow instrumentation and processing equipment.

CAUTION

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 ow meter is a simple device to install. However, the following measures are recommended for reliable, trouble-free operation:

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 ow meter will result in weakening of the ow meter body and potentially cause fracturing under pressure.

Don’t - Allow liquid pipe sealant, PVC/CPVC primer or PVC/CPVC cements to come into contact with the plastic ow meter. These contain solvents that are not compatible with polysulfone plastic and will result in the ow meter body weakening and potentially fracturing under pressure. If a pipe sealant is required, use of Teon® tape is recommended.

Don’t - Install the ow meter in piping systems that are not aligned or properly supported.

Don’t - Connect the ow meter male plastic NPT ttings to female metal NPT couplings. Differences in coefcients of expansion between metals and plastics can cause the plastic ow meter body to crack. Utilize a female-tofemale plastic pipe coupling to connect metal pipe to the plastic ow meter.

Don’t - Use pipe wrenches on the ow meter body. To avoid scarring or otherwise damaging the external surface, use an open-end wrench on the integral hex ats during installation.

Don’t - Subject the ow meter to back pressure or back ow. The ow meter will operate as a “leaky” check valve when subjected to reverse ow, but can be damaged if the reverse hydraulic horsepower is too great.

Don’t - Install the ow meter on systems with large degrees of particulate contamination. Minimum ltration of 200 mesh (74 micron) is recommended for troublefree operation.

Don’t - Install O-ring seals that have not been lubricated.

Piping (Plumbing)

CAUTION

To avoid unnecessary pipe exing that could cause structural stress on the ow 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 rmly supported by external mounting brackets, both upstream and downstream from the meter to avoid any pipe exing that could reduce the life of the meter.

1. If the ow meter inlet or outlet are to be rigidly

mounted, and the opposing port is to be connected to a exible hose, the end connected to the exible hose MUST be rigidly mounted.

2. This unique design does not require special plumbing

or accessories to stabilize turbulent ow. Flow meters can be installed immediately adjacent to 90° elbows or other components, providing system design exibility.

3. A 200 mesh (74 micron) or better ltration is required

to assure reliable performance.

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EZ-View Flow Meter and EZ-View Flow-Alert Flow Meter

Installation & Maintenance Instructions

Flow Direction

These meters only accept ow in one direction. Make sure to align the Flow Arrow, located on the bottom of the meter’s ow scale, in the same direction as the anticipated line ow. 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 Teon® tape to the male NPT threads of the ow meter.

2. Thread the ow meter inlet into a 1" NPT plastic, female pipe coupling.

3. Thread the ow meter and coupling onto the inlet pipe and hand tighten. Make sure the ow direction arrow on the ow meter corresponds with the system ow direction. See Figure 3.

4. Place an open-end wrench on the ow meter body hex and place a pipe wrench on the metal mating pipe. Tighten until snug. DO NOT overtighten. Make sure the ow meter scale is oriented for convenient viewing. DO NOT back off/unscrew ttings to rotate scale for better viewing.

Flow Direction

Indicator

9080604020

242016

LPM

WATER

GPM

Figure 3. Flow Direction Indicator

5. Thread a 1" NPT plastic pipe coupling to the outlet connection of the ow meter. Stack a pipe nipple and half of a pipe union onto the pipe coupling. Tighten the assembly as required.

6. Install the other half of the pipe union to the outlet pipe and connect the union halves together.

7. Piping should be supported and aligned properly to avoid placing stress on the ow meter body.

8. Slide the limit indicators to point to appropriate positions on the ow meter scale. To remove the limit indicators, slide them fully towards the ow meter outlet.

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Figure 4. Model H621-XXX 1" NPT Models Installation

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EZ-View Flow Meter and EZ-View Flow-Alert Flow Meter

1" Union

Installation & Maintenance Instructions

H628-XXX 1", H636-XXX 1-½" and H619-XXX 2" PVC with Socket Weld Models (See Figure 5)

1. Remove the two end ttings from the ow meter. Lubricate the O-rings and install the ttings onto the ow meter.

CAUTION

into their mating components and twisting 1/8 turn to guarantee adhesion. Allow sufcient drying time.

4. Using the method outlined in steps 2 & 3, apply half of the PVC union to the ow meter outlet tting.

5. Install the other half of the PVC pipe union to the outlet

2. Prepare the ow meter PVC ttings and PVC pipe couplings with PVC cleaner/solvent.

3. Apply a thin layer of PVC glue to the PVC ow meter ttings. Orient the meter during curing to ensure that excessive glue will not run into or onto the ow meter. Connect all PVC glue joints by inserting the pipes fully

pipe.

6. Make sure the ow direction arrow on the ow meter corresponds with the system ow direction. See Figure 3 on page 4. Lubricate the union O-ring and connect the union together.

7. Piping should be supported and aligned properly to avoid placing stress on the ow meter body.

8. Slide the limit indicators to point to appropriate positions on the ow meter scale. To remove the limit indicators, slide them fully towards the ow meter outlet.

NOTE: To replace meter body order P.N. H622-XXX.

Figure 5. Model H628-XXX 1", H636-XXX 1-½" & H619-XXX 2" PVC Socket Weld Models Installation

H620-XXX Brass Sweat Fitting Models (See Figure 6 on page 6)

1. Remove both brass ttings from the ow meter inlet and outlet. Remove O-rings from the ttings.

2. Apply solder ux to the ow meter brass ttings and mating pipe surfaces.

3. Place the brass hex coupler onto the pipe with the thread facing the ow meter. Slide the brass sweat tting onto the prepared pipe.

4. Sweat the ttings onto the pipe. DO NOT apply heat to the brass ow meter tting with the plastic ow meter body or seals attached to the tting.

5. Repeat steps 3 & 4 for the other ow meter tting. Allow ttings to cool.

6. Lubricate the two O-rings removed in step 1. Place the O-rings onto the brass ttings.

7. Place the ow meter in between the two installed brass ttings. Make sure the ow direction arrow on the ow meter corresponds with the system ow direction. See Figure 3 on page 4. Thread the two brass hex couplers into the ow meter body.

8. Rotate the ow 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 ow meter body.

10. Slide the limit indicators to point to appropriate positions on the ow meter scale. To remove the limit indicators, slide them fully towards the ow meter outlet.

NOTE: To replace meter body order P.N. H622-XXX.

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EZ-View Flow Meter and EZ-View Flow-Alert Flow Meter

Installation & Maintenance Instructions

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 ttings from the ow meter inlet and outlet. Remove O-rings from the ttings.

2. Apply Teon® tape to the male pipe thread connections.

3. Place the brass or stainless steel hex coupler onto the pipe with the threads facing the ow meter.

4. Thread the ow meter ttings onto the mating pipe.

5. Tighten ttings by placing an open-end wrench onto the tting and a pipe wrench onto the mating pipe.

6. Repeat steps 3-5 for the other ow meter tting.

7. Lubricate the two O-rings removed in step 1. Place the O-rings onto the threaded ttings.

8. Place ow meter between the two installed ttings. Make sure the ow direction arrow on the ow meter

Figure 7. All Models w/Male, Metal or PVC Threaded End Fittings Installation

corresponds with the system ow direction. See Figure 3 on page 4. Thread the two hex couplers onto the ow meter body.

9. Rotate the ow meter body such that the scale can be conveniently viewed. Tighten hex couplers. Typically, only hand tightening is required.

10. Piping should be supported and aligned properly to avoid placing stress on the ow meter body.

11. Slide the limit indicators to point to appropriate positions on the ow meter scale. To remove the limit indicators, slide them fully towards the ow meter outlet.

NOTE: To replace meter body order P.N. H622-XXX.

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EZ-View Flow Meter and EZ-View Flow-Alert Flow Meter

Installation & Maintenance Instructions

All Models with Female, Metal Threaded End Fittings (See Figure 8)

1. Apply Teon® tape to the male pipe thread connections.

2. Thread the inlet of the ow meter onto the appropriate pipe connection. Make sure the ow direction arrow on the ow meter corresponds with the system ow direction. See Figure 3 on page 4.

3. Tighten ow meter connection by placing an open-end wrench on the ow meter metal connection adjacent to the pipe that is being attached. Tighten until snug. Make sure ow meter scale is oriented for convenient viewing. DO NOT overtighten. DO NOT back off/ unscrew to rotate scale for better viewing.

4. Install a union tting at the outlet end of the ow meter.

Figure 8. All Models w/Female, Metal Threaded End Fittings Installation

CAUTION

Do not tighten the ow meter by wrenching from the opposite tting, as the meter body could crack.

5. Piping should be supported and aligned properly to avoid placing stress on the ow meter body.

6. Slide the limit indicators to point to appropriate positions on the ow meter scale. To remove the limit indicators, slide them fully towards the ow meter outlet.

NOTE: To replace meter body order P.N. H622-XXX.

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EZ-View Flow Meter and EZ-View Flow-Alert Flow Meter

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

3% Deadband

Off

LPM

2040608090

CAUTION

1. Only use Teflon tape to seal threaded fittings. DO NOT use pipe dope.

2. DO NOT sweat fit adaptor fittings into a system while mounted to the EZ-VIEW meter.

Full

Scale

FLOW DIRECTION

Switch

Contacts

Installation & Maintenance Instructions

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 ow 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%

2040608090

CAUTION

Of Scale

Full

Scale

FLOW DIRECTION

Switch

Contacts

Off

LPM

1. Only use Teflon tape to seal threaded fittings. DO NOT use pipe dope.

2. DO NOT sweat fit adaptor fittings into a system while mounted to the EZ-VIEW meter.

Figure 9. Latching Switches Figure 10. Reed 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 Specications

Specications AC Latching DC Latching Specications

Operating Voltage 115 VAC ± 10% 10-30 VDC N/A N/A N/A

Operating Current 25 mA maximum N/A N/A N/A

Contact Rating

Cable

Certication N/A CE

Enclosure Rating NEMA 12 & 13 (IP65)

Page 8

1A @ 30 VDC

0.5A @ 125 VAC Resistive Load

Not Included

N/A

powered units. When the magnet inside the ow 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 ow meter but one must be set for activation on increasing ow and the second must be set for activation on decreasing ow.

Watts Max Voltage Max Current Max

Reed Switch Form A (NO)

200

3 ft, 24 AWG

2 Conductor

PVC Jacket

Reed Switch Form B (NC)

175

.25A

3 ft, 20 AWG 2 Conductor

PVC Jacket

Form C (SPDT)

Reed Switch

3 ft, 24 AWG 3 Conductor

PVC Jacket

175

.25A

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EZ-View Flow Meter and EZ-View Flow-Alert Flow Meter

Figure 11. Latching Switch Installation

Switches Positioned for Activation

on Increasing Flow

Installation & Maintenance Instructions

Flow-Alert Latching Switch Installation

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 ½", ¾" and 1" meters, or the outlet end of the 1-½" or 2" meters. The direction of the connector and cable assembly indicates whether the switch will activate on increasing ow (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 rst requires disassembly of the connector as shown in Figure

13. The specic 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.

CAUTION

LPM

1. Only use Teflon tape to seal threaded fittings.

DO NOT use pipe dope.

2. DO NOT sweat fit adaptor fittings into a system

while mounted to the EZ-VIEW meter.

Switch Positioned for Activation

on Decreasing Flow

Figure 12. Latching Switch Installation

Strain Relief Nut

Body

Loosen Strain Relief

Nut and Run (4)

Wires In Here

Gasket

Solder Lug

Polarity Pin

Figure 13. Latching Switch Installation

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EZ-View Flow Meter and EZ-View Flow-Alert Flow Meter

Installation & Maintenance Instructions

Polarity Pin

Strain Relief Nut

Top

View

Bottom

View

Body

3 2

1324

Key

Solder Lug

DC Switch AC Switch

Pin Function Pin Function

1 Relay (NO) 1 Relay (NO) 2 DC+ 2 AC Supply 3 Relay Common 3 Relay Common

4 DC- 4 AC Supply

Figure 14. Latching Switch Installation

C A

Polarity Pin

Figure 15. Polarity Pin

Flow-Alert Latching Switch AC Wiring Conguration

WARNING

All wiring should be made in accordance with the National Electrical Code® and must conform to any applicable state and local codes.

2 4

Flow

Circuit

Fuse

0.1 A

115 V Relay Coil

1 3

AC Line

Switch Module

AC Line

Contacts

Load

AC Relay Contact

Example shows a secondary (slave) relay with a 115 VAC coil integrated with the AC switch module. This combination allows switching of loads up to the rating of the relay contacts.

NOTE: Load limited by relay contacts.

Figure 17. AC Conventional Secondary Connections

2 4

Flow

Circuit

1 3

10 - 30 VDC

Switch Module

Contacts

Fuse

0.1 A

Load

DC Ground

Figure 18. DC Conventional Connection

2 4

Flow

Circuit

1 3

Fuse

0.1 A

DC Relay Coil

2 4

Flow

Circuit

AC Line

1 3

Switch Module

Contacts

Fuse

0.1 A

Load

NOTE: Load must be within specied contact rating range. 1A @ 30 VDC/500 mA @ 125 VAC.

Figure 16. AC Conventional Connection

Page 10

AC Line

Switch Module

10 - 30 VDC

Contacts

DC Ground

Load

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.

NOTE: Load limited by relay contacts.

Figure 19. DC Conventional Secondary Connections

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EZ-View Flow Meter and EZ-View Flow-Alert Flow Meter

Installation & Maintenance Instructions

FORM A

(Normally Open)

RED

BLACK

FORM B

(Normally Closed)

BLACK

WHITE

FORM C

BLACK

(Normally Closed)

WHITE

(Common)

RED

(Normally Open)

Figure 20. Form A, B & C

Flow-Alert Reed Switch Installation

1. Install the switch on the ow meter by placing the adjustment arm over the serrated rail from the inlet end of the ½", ¾", and 1" meters, or the outlet end of the 1-½" and 2" meters. Each meter will accept up to two reed switches and the switch(es) for ½", ¾", and 1" meters must be installed before the meter is plumbed into the system.

2. Flow-Alert reed switches are available in three congurations: Form A (normally open), Form B (normally closed), and Form C (SPDT). Wire color codes and switch congurations are shown in

Figure 20.

Flow-Alert Reed Switch Adjustment

After the ow meter has been installed and the switch wired, the ow rate at which the switch will activate must be adjusted as follows:

1. With the uid 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.

LEFT

SIDE

2200 SOUTH STREET RACINE, WI 53404 PHONE 1-800-FLOW-888 FAX 1-800-775-3179

GPM

RIGHT

SIDE

LPM

CAUTION

1. Only use Teflon tape to seal threaded fittings.

DO NOT use pipe dope.

2. DO NOT sweat fit adaptor fittings into a system

while mounted to the EZ-VIEW meter.

FLOW DIRECTION

Figure 21. Switch Orientation

WARNING FAIL-SAFE OPERATION

If the ow meter and switch are to be installed in a critical application, be sure the system is fail-safe. The switch should be wired so any switch failure will stop the system. Failure to fail-safe the system may lead to system damage and/or personal injury.

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EZ-View Flow Meter and EZ-View Flow-Alert Flow Meter

Installation & 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.

• Clean the outside of the ow meter with denatured alcohol or mild detergent and warm water.

• Should the inside of the ow meter become stained, it can be disassembled for cleaning.

• Should the ow 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 the 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 ow meter outlet port).

NOTE: Models with a 2" body can be serviced by removing the two end ttings, 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 ow meter body with a caliper or other measuring device.

2. Carefully remove the retaining clip with a small, athead screwdriver.

3. Remove the spring and piston assembly.

4. Clean the inside of the ow meter body and piston assembly with denatured alcohol or mild detergent and water.

5. Reassemble the 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 ow scales are calibrated in GPM (Gallons per Minute) and LPM (Liters per Minute) at

0.876 specic gravity for petroleum-based uids, and 1.0 specic gravity for water and water-based uids.

For eld conversion of the standard scale to other uids, see Density Effect below.

Special Flow Scales

Special scales are available for liquids in any measurement unit, and other uid viscosities and/or specic gravities.

Viscosity Effect (SS/cSt)

The design utilizes a sharp-edged orice and biasing calibration spring that ensures operating stability and accuracy over the wide viscosity range common to many uids. Generally, high ow models of each meter size provide good accuracy over a viscosity range of 40 to 500 SUS (4.2 to 108 cSt).

Density Effect (Specic Gravity)

Any uid density change from stated standards has a proportional effect on meter accuracy. Special scales can be supplied if actual specic gravity decreases accuracy beyond application limits. Corrections for more or less dense uids can be made to standard scales using the following correction factor:

1.0

Specic Gravity

for water/water-based meters

√

0.876

Specic Gravity

for petroleum-based meters

√

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EZ-View Flow Meter and EZ-View Flow-Alert Flow Meter

Installation & Maintenance Instructions

Fluid Selection Chart

Correction

Fluid

Acetic Acid (Air Free) 1.06 0.909 0.971 R R C R N R R Acetone 0.79 1.053 1.125 N R N R R N R Alcohol, Butyl (Butanol) 0.83 1.027 1.089 R R R R C R R Alcohol, Ethyl (Ethanol) 0.83 1.027 1.089 R R N R C R R Ammonia 0.89 0.992 1.060 R R C R C R R Benzene 0.69 1.127 1.204 N N N N R N N Carbon Disulde 1.26 0.834 0.891 N R N R N N R Castor Oil 0.97 0.950 1.015 C C R C R C C Cotton Seed Oil 0.93 0.970 1.037 R R R R R N R Ethylene Glycol 50/50 1.12 0.884 0.945 R R R R R R R Freon II 1.46 0.774 0.828 N R N R R N R Gasoline 0.70 1.119 1.195 R R R R R C R Glycerin 1.26 0.834 0.891 R R R R R R R Kerosene 0.82 1.033 1.104 R R R R R R R Liquid Propane (LPG) 0.51 1.310 1.400 N R R R R R R Mineral Oil 0.92 0.976 1.042 R R R R R R R Naphtha 0.76 1.074 1.147 N R R R N N R Perchloroethylene 1.62 0.735 0.786 N R R R N N R Petroleum Oil 0.876 1.000 1.068 R R R R R R R Phosphate Ester 1.18 0.862 0.921 N R N R R N R

Phosphate Ester Base 1.26 0.833 0.891 N R N R R N R Phosphoric Acid (Air Free) 1.78 0.701 0.749 R N C N N R N Sea Water 1.03 0.922 0.985 R N R N N R N Synthetic Petroleum Base 1.00 0.936 1.000 R R R R C R R Water 1.00 0.936 1.000 R R R R R R R Water Glycol 50/50 1.07 0.950 0.967 R R R R R R R Water-in-Oil 0.93 0.970 1.037 R R R R R R R

R - Recommended N - Not Recommended C - Consult Factory

Specic

Gravity

Factor of Standard

Scales

Oil Water

Internal

Components

Polysulfone

T300 Stainless

Buna N

Fittings

PH157 MO Stainless

C360 Brass

PVC - Type 1

T303 Stainless

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Pressure Drop Charts

EZ-View Flow Meter and EZ-View Flow-Alert Flow Meter

Installation & Maintenance Instructions

½", ¾", 1" OIL & WATER METERS

10.00

8.00

16 GPM

28 GPM

6.00

4.00

2.00

PRESSURE DROP (PSID)

10 GPM

4 GPM

7 GPM

18 GPM

0 3 6 9 12 15 18 21 24 27 30

FLOW (GPM)

1½", 2" OIL & WATER METERS

2.5

2.0

1.5

1.0

0.5

25 GPM

50 GPM

75 GPM

PRESSURE DROP (PSID)

0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0

FLOW (GPM)

100 GPM

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EZ-View Flow Meter and EZ-View Flow-Alert Flow Meter

Installation & Maintenance Instructions

NOTES

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EZ-View Flow Meter and EZ-View Flow-Alert Flow Meter

Installation & Maintenance Instructions

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 ow 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 liability 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 tness 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 www.hedland.com [email protected]

DIVISION OF RACINE FEDERATED INC.

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Materials & specications 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 ELECTRICAL 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.