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Instructions – Parts List
Parts
STANDARD
EM5tElectronic Metered
Dispense Valves
For dispensing petroleum–based lubricants and antifreeze.
1000 psi (7 MPa, 69 bar) Maximum Working Pressure
5 gpm (18.9 lpm) Maximum Flow Rate
Factory-Set to Measure in Liters
Canadian Weights & Measures approved
Model 238457
75_ bend 3/8–in. rigid tube
Model 238458
3/8–in. coupled flexible hose
Model 238459
15_ bend 3/8–in. gear lube tube, 90_ elbow
CAUTION
D This dispense valve is designed to dispense
petroleum-based lubricants and antifreeze only.
Do not dispense windshield washer solvent
with this dispense valve.
D This dispense valve is designed for indoor use
only.
D This dispense valve is not designed for in-line
installation. Do not install with a shut-off valve
on the outlet side of the meter. Such installa-
tion could result in damage to the meter hous-
ing cover.
Important Safety Instructions.
Read all warnings and instructions in this manual.
Save these instructions.
EExia II A/B T3
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
Copyright 1996, Graco Inc. is registered to I.S. EN ISO 9001
D
97D.122550
Model 238457 shown
Registered Design No. 1025804
INTRINSICALLY SAFE FOR
HAZARDOUS LOCATIONS
CLASS 1, DIV. 1, GROUP D
308487P
06042C
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Summary of Contents for Graco EM5 238457
- Page 1 Read all warnings and instructions in this manual. Save these instructions. INTRINSICALLY SAFE FOR HAZARDOUS LOCATIONS CLASS 1, DIV. 1, GROUP D 97D.122550 EExia II A/B T3 GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441 Copyright 1996, Graco Inc. is registered to I.S. EN ISO 9001...
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Page 2: Table Of Contents
D Read all instruction manuals, tags, and labels before you operate this equipment. D Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor. D Do not alter or modify this equipment. Use only genuine Graco parts and accessories. - Page 3 WARNING WARNING FIRE AND EXPLOSION HAZARD Improper grounding, poor ventilation, open flames, or sparks can cause a hazardous condition and result in a fire or explosion and serious injury. D Be sure the entire fluid system is properly grounded. Refer to your pump instruction manual for complete details.
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Page 4: Installation
Contact your Fig. 1 shows a typical hose reel installation. Fig. 2 Graco distributor for assistance in designing a system shows how these dispense valves can be installed on to suit your particular needs. - Page 5 Installation 1. If this is an existing installation, go to step 7. WARNING Steps 3 through 6 are the Flushing Procedure. PRESSURIZED EQUIPMENT HAZARD The equipment stays pressurized until pressure is 2. Make sure the main fluid outlet valve at the pump manually relieved.
- Page 6 Installation 10. Model 238457 Model 238459 See Fig. 4. This nozzle assembly can be configured two ways. See See Fig. 4. a. Thread the sealing nut (5c) onto the exten- a. Thread a sealing nut (7c) onto the tube (7a) sion (5a) with the PTFE side facing out.
- Page 7 Proper grounding is an essential part of maintaining a CAUTION safe system. Do not use Graco’s old nozzle (Part No. 203655) or To reduce the risk of static sparking, ground all system any other manual shut-off nozzle on the EM5 components per local and national electrical codes.
- Page 8 Notes 308487...
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Page 9: Setup
Setup Terms Keypad Buttons The buttons on the keypad and their functions are as The following terms are shown on the display and/or follows (see the figure below): used often in this instruction manual. D 10, 1.0, and 0.1 D R–TOTAL: Resettable Total Used to enter dispense amounts. - Page 10 Setup Selecting Dispensing Options This is the procedure for setting or changing the resettable total, units of measurement, predetermined dispense amount, and the reset-to-zero option: 1. If the display is asleep, wake it up by pressing any button on the keypad. 2.
- Page 11 Setup Predetermined Dispense Amount Reset-to-Zero Option In this menu, you can specify an amount to be dis- In this menu, you can set whether or not the unit will played when you enter the Auto Alarm dispense mode. automatically reset to zero after two minutes of inactiv- Typically, you would enter the amount you most fre- ity.
- Page 12 Setup Calculating the Calibration Factor Use the following tables and formulas to calculate the change to make to the calibration factor. Example of Calibration Factor Change Dispense until the display reads 1 liter (1000 ml) into a clean, calibrated, volumetric measuring flask. For increased accuracy, submerge the nozzle, and let the air settle out of the fluid for ten minutes before you note the volume.
- Page 13 Setup Calibrating the Meter 3. Press the Calibration button. The calibration factor is shown on the display, as NOTE: This unit has been calibrated at the factory to shown below. dispense lubricating oils; it should not require addi- tional calibration during installation. If this unit will be used to dispense antifreeze, and accuracy must be greater than plus or minus 2 percent, it is recom- mended that you use a calibration factor of 7230.
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Page 14: Operation
Operation Checking Segments in the Display Dispensing Fluid in Auto Alarm Mode NOTE: All buttons are disabled while fluid is being When you press the Reset button when the display is dispensed. awake, the Segment Check is displayed briefly. This display allows you to check for burned out segments in 1. - Page 15 Operation Viewing Totals and the Calibration Factor This is the procedure for viewing the non-resettable 4. Press the Total button again. and resettable totals in the current units and for view- The calibration factor is shown on the display, as ing the calibration factor.
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Page 16: Troubleshooting
Open the shut-off valve. Shut-off valve is not fully open. If the problem remains, contact your Foreign material is jammed in the Graco distributor for repair or re- metering element. placement. Displayed dispensed amount Unit needs to be calibrated for the Calibrate the meter for the fluid that is is not accurate. - Page 17 Ensure that your flow rate is not pick-up in internal gear, or flow higher than 5 gpm. For further assis- range is too high. tance, contact your Graco distributor. Air was pumped through the line. Purge air from the line. Unit was dropped, or unit encoun- Press the Reset button at start-up.
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Page 18: Service
Service Replacing the Battery Replacing the Filter The filter (25) is replaceable. To replace the filter, do CAUTION the following: Do not change the battery while anything is 1. Relieve the pressure. shown on the display. You must wait until the unit falls asleep and the display is blank before you remove the battery. - Page 19 (16) into the meter housing. Do not use Graco’s old nozzle (Part No. 203655) or any other manual shut-off nozzle on the EM5 extension. You must use the nozzle that is pro- 7.
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Page 20: Parts List
Parts List Ref. Ref. Part No. Description Qty. Part No. Description Qty. 238887 NOZZLE ASSEMBLY For Model 238459 238553 COVER, electronics (includes 7a to 7d) (does not include 6 screws 191038 .TUBE, rigid, 15_ bend; 3/8 in. (item 21/PN 113412) which may 238371 .NOZZLE, gear lube be ordered separately) -
Page 21: Parts Drawing
Parts Drawing Torque to 7 to 10 in-lb (0.79 to 1.13 N.m). Torque to 140 to 150 in-lb (15.8 to 16.9 N.m). Apply lubricant when reassembling. Apply thread sealant when reassembling. Torque to 20 to 25 ft-lb (27 to 34 N.m). These parts are included in Valve Repair Kit 240453, which can be ordered separately. -
Page 22: Technical Data
Technical Data Flow range* ......0.26 to 5 gpm Meter valve assembly pressure loss (1 to 18.9 lpm) At 1.5 gpm (5.7 lpm) with 30-weight oil Operating pressure range at 70_ F (21_ C) -
Page 23: Dimensional Drawing
Dimensional Drawing 14.0 in. (356 mm) outlet to end of swivel cover 3.25 in. (83 mm) widest cross section 2.75 in. (70 mm) keypad to bottom of cover 06042C 308487... -
Page 24: Warranty
Graco warrants all equipment manufactured by it and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. As purchaser’s sole remedy for breach of this warranty, Graco will, for a period of two (2) years from the date of sale, repair or replace any part of the equipment proven defective, including defects in the electronic meter control, which will be repaired or replaced for two (2) years from the date of sale.
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