Graco IM20P Fiche technique

3A8625A

Instructions - Parts List

IM20P Meter

For dispensing of petroleum based oils and anti-freeze. For professional use only.

Not approved for use in explosive atmospheres or hazardous (classified) locations.

Model IM20P

1500 psi (10.3MPa,103 bar) Maximum Working

Pressure

Important Safety Instructions

Read all warnings and instructions in this

manual before using the equipment.

Save these instructions.

Models

2 3A8625A

Models

In-Line Pulse Meter

Model No. Inlet Outlet Thread

133480 3/4 in. 3/4 in. npt

Contents

3A8625A 3

Contents

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

In-Line Pulse Meter . . . . . . . . . . . . . . . . . . . . . . . 2

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Typical Installation: IM20P . . . . . . . . . . . . . . . . . . 6

Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . 7

Pre-Installation Procedure . . . . . . . . . . . . . . . . . . 8

Flush Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Installation of Meter . . . . . . . . . . . . . . . . . . . . . . . 8

Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

To Verify the Accuracy . . . . . . . . . . . . . . . . . . . . 10

Recycling and Disposal . . . . . . . . . . . . . . . . . . . . . 11

End of Product Life. . . . . . . . . . . . . . . . . . . . . . . 11

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

NOTES: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Technical Specifications . . . . . . . . . . . . . . . . . . . . 16

Pressure Drop Chart. . . . . . . . . . . . . . . . . . . . . . . . 17

ISO 46 Hydraulic Fluid . . . . . . . . . . . . . . . . . . . . 17

California Proposition 65 . . . . . . . . . . . . . . . . . . . . 17

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 18

Warnings

4 3A8625A

Warnings

The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The

exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks.

When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings.

Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this

manual where applicable.

WARNING

SKIN INJECTION HAZARD

High-pressure fluid from dispensing device, hose leaks, or ruptured components will pierce skin. This

may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical

treatment.

• Do not point dispensing device at anyone or at any part of the body.

• Do not put your hand over the fluid outlet.

• Do not stop or deflect leaks with your hand, body, glove, or rag.

• Use only extensions that are designed for use with dispensing valve.

• Do not use low-pressure flexible extension with this equipment.

• Follow the Pressure Relief Procedure when you stop dispensing and before cleaning, checking, or

servicing equipment.

• Tighten all fluid connections before operating the equipment.

• Check hoses and couplings daily. Replace worn or damaged parts immediately.

FIRE AND EXPLOSION HAZARD

When flammable fluids are present in the work area, such as gasoline and windshield wiper fluid, be

aware that flammable fumes can ignite or explode. To help prevent fire and explosion:

• Use equipment only in well-ventilated area.

• Eliminate all ignition sources, such as cigarettes and portable electric lamps.

• Ground all equipment in the work area.

• Keep work area free of debris, including rags and spilled or open containers of solvent and gasoline.

• Do not plug or unplug power cords or turn lights on or off when flammable fumes are present.

• Use only grounded hoses.

•Stop operation immediately if static sparking occurs or you feel a shock. Do not use equipment until

you identify and correct the problem.

• Keep a working fire extinguisher in the work area.

Warnings

3A8625A 5

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

• Do not operate the unit when fatigued or under the influence of drugs or alcohol.

• Do not exceed the maximum working pressure or temperature rating of the lowest rated system

component. See Technical Specifications in all equipment manuals.

• Use fluids and solvents that are compatible with equipment wetted parts. See Technical

Specifications in all equipment manuals. Read fluid and solvent manufacturer’s warnings. For

complete information about your material, request Safety Data Sheets (SDSs) from distributor or

retailer.

• Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.

• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine

manufacturer’s replacement parts only.

• Do not alter or modify equipment. Alterations or modifications may void agency approvals and create

safety hazards.

• Make sure all equipment is rated and approved for the environment in which you are using it.

• Use equipment only for its intended purpose. Call your distributor for information.

• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.

• Do not kink or over bend hoses or use hoses to pull equipment.

• Keep children and animals away from work area.

• Comply with all applicable safety regulations.

PERSONAL PROTECTIVE EQUIPMENT

Wear appropriate protective equipment when in the work area to help prevent serious injury, including

eye injury, hearing loss, inhalation of toxic fumes, and burns. Protective equipment includes but is not

limited to:

• Protective eyewear, and hearing protection.

• Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.

WARNING

Installation

6 3A8625A

Installation

Typical Installation: IM20P

The typical installation shown in FIG. 1 is only a guide. The components shown are typical; however it is not a com-

plete system design. Contact your Graco distributor for assistance in designing a system to suit your needs. Addition-

ally, these dispense valves can be installed on a console.

Key:

A Dispense Valve

B Fluid Shutoff Valve - Hose Reel

C Hose

D Fluid Inlet Hose

E Hose Reel

G In-line strainer

H Main Fluid Shutoff Valve

J Pressure relief Valve

K Check Valve

L Bleed-off Valve (drain valve)

M Bleed-type Master Air Valve

N IM20P In-line Pulse Meter

FIG. 1: Typical Installation

KJHG

NOTICE

• Do not over-tighten fittings. Excessive torque will

crack the casting. Only tighten fittings 2.5+ 0.5

turns past finger tight. Do not exceed 80 ft.-lbs

(9.04 N•m).

• Flush lines before installing equipment in the sys-

tem to prevent contamination which can cause

equipment damage or malfunction. See Flush

Lines, page 8.

Installation

3A8625A 7

Grounding

Pump: follow manufacturer’s recommendations.

Hose reels or consoles: connect to a true earth

ground.

Air and fluid hoses: use only conductive hoses.

Air compressor: follow manufacturer’s recommenda-

tions.

Fluid supply container: follow local code.

IM20P meters: use thread sealant when connecting the

meter to the hose. Do not use PTFE tape on the pipe

joints, it may cause loss of ground across the pipe joint.

Waste container while flushing: use a grounded metal

container. Hold hose coupling or metal part of the meter

firmly to the side of the waste container while flushing.

Pressure Relief Procedure

Follow the Pressure Relief Procedure whenever

you see this symbol.

1. Turn off the power supply to the pump.

2. Trigger the dispense valve into a grounded waste

container to relieve pressure.

3. Open any bleed-type master air valves and fluid

drain valves in the system.

4. Leave the drain valve open until ready to pressurize

the system.

5. If it is suspected that the valve, extension or nozzle

is clogged or that pressure has not been fully

relieved:

a. Very slowly loosen the fitting nut on the hose to

relieve pressure gradually.

b. Then loosen the fitting nut completely.

c. Clear the obstruction in the valve, extension, or

nozzle.

The equipment must be grounded to reduce the risk of

static sparking. Static sparking can cause fumes to

ignite or explode. Grounding provides an escape wire

for the electric current. This equipment stays pressurized until pressure is

manually relieved. To help prevent serious injury from

pressurized fluid, such as skin injection, splashing

fluid and moving parts, follow the Pressure Relief Pro-

cedure when you stop dispensing and before clean-

ing, checking, or servicing the equipment.

Installation

8 3A8625A

The reference letters used in the instructions on this

page refer to Typical Installation, FIG. 1, page 6.

Pre-Installation Procedure

1. Follow Pressure Relief Procedure, page 7.

2. Close the hose reel fluid shut-off valve (B).

3. Ground the hose and reel or console. See Ground-

ing, page 7. Do not use PTFE tape on the inlet and

outlet port threads; it may cause a loss of ground

across the threaded connections.

Flush Lines

If this is a new installation or if the fluid in the lines is

contaminated, flush the lines before installing the dis-

pense valve. To avoid contaminating your fluid with oil,

flush the equipment with a compatible solvent before

using the equipment.

NOTE: The dispense valve should not be installed on

the hose when flushing the equipment.

1. Follow Pressure Relief Procedure, page 7.

2. Close the hose reel fluid shut-off valve (B) at each

dispense position.

3. If an existing installation, remove the dispense valve

from hose.

4. Place the hose end into a container for waste fluid.

Secure the hose in the container so it will not come

out during flushing.

NOTE: For multiple dispense positions, first flush

the dispense position farthest from the pump, and

work toward the pump.

5. Slowly open the hose reel fluid shut-off valve (B) at

the dispense position. Flush out a sufficient amount

of fluid to ensure that the entire system is clean,

then close the valve.

6. Repeat step 5 at all dispense positions.

Installation of Meter

To install a new meter in an existing installation, begin

with Step 1 and 2.

To install a new meter in a new installation, begin with

Step 3.

1. Follow Pressure Relief Procedure, page 7.

2. Loosen and disconnect the hose from the meter

being replacing.

For Steps 3 - 7, refer to FIG. 2.

3. Apply thread sealant to the male threads of the hose

fitting.

4. Thread the meter (1a) onto the hose fitting. Tighten

firmly.

5. Apply thread sealant to the male threads of the hose

fitting. Thread the hose fitting into the swivel (5).

Tighten firmly.

6. Open all dispense position shut-off valves (B). Start

the pump to pressurize the system. See Operation,

page 9 for operation instructions.

7. To ensure dispensing accuracy, purge all air from

the fluid lines and dispense valves before using.

FIG. 2

Operation

3A8625A 9

Operation

The meter requires a Logic Control Device to operate.

The Logic Control Device interprets pulse signals from

the meter and converts them into a fluid quantity.

The number of pulses per volumetric unit varies based

upon fluid viscosity. The default calibration factor is 172

pulses per quart, based upon the fluid viscosity of a

10w30 motor oil.

*Calibration factor may vary slightly due to temperature or rate of flow.

**Viscosity of anti-freeze will vary based upon the water dilution ratio.

The meter sensor design allows for both PNP and NPN

Logic Controller Devices (FIG. 4).

FIG. 3: External Wiring Diagram (2-wire device)

Fluid Viscosity Temperature

Rate of

Flow

Calibration

Factor*

Engine Oil 10W30 77°F (25°C) 5 gpm 172

Gear Lube 75W90 77°F (25°C) 5 gpm 172

ATF 5W20 77°F (25°C) 5 gpm 172

Anti-

freeze**

77°F (25°C) 5 gpm 150

FIG. 4:

Operation

10 3A8625A

To Verify the Accuracy

1. Use a clean, calibrated container.

NOTE: If using a single container, be sure to clean it

after each dispense.

2. Set the pump air pressure at the lowest possible

setting for dispensing fluid.

3. Place the tip of the nozzle at the bottom of the cali-

brated container.

NOTE: If the tip of the dispense valve does not

reach the bottom of the calibrated container, use a

length of plastic tubing over the tip of the nozzle to

ensure liquid enters the container from the bottom.

4. Trigger the dispense valve slowly. Dispense fluid

until the calibrated container is full.

5. Allow product to sit for 20 minutes, then compare

the actual, physical measurement in the calibrated

container to the measurement interpreted by the

Logic Control Device.

NOTE: The above procedure determines if the meter is

accurately measuring the product and minimizing

testing errors. Some variance may occur depending on

the viscosity of the fluid. If this procedure determines

that the meter is not accurate, recalibrate the Logic

Control Device. Recalibrating will vary depending upon

the Logic Control Device settings.

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