Operating Guide Model 800 Dispenser ® US: 800-556-3484 A NORDSON COMPANY In the UK: 0800 585733 In Mexico: 001-800-556-3484
Introduction Model 800 fluid dispenser provides years of trouble-free, productive service. This Operating Guide will help you maximize the usefulness of your new dispenser. Please spend a few minutes to become familiar with the controls and features of your new dispenser. Follow our recommended testing procedures. Review the helpful information we have included based on over 30 years of industrial dispensing experience. Most questions you will have are answered in this Guide.
First Steps Contents Dispenser Hookup .................................... 4-5 Controls & Connections .............................. 6 Setup for Testing ......................................... 7 Testing the Dispenser ................................. 8 Using the Vacuum Control .......................... 9 ULTRA Dispensing System .................. 10-11 Loading the Barrel Reservoirs .............. 12-13 Suggestions & Reminders ......................... 14 Components Reorder ...............................
Plant air, 125 psi maximum to regulator. Output from regulator should be a minimum of 80 psi, maximum 100 psi.
Dispenser Hookup ❶ Connect the air input hose to a plant air source. ❺ Attach the 10cc barrel prefilled with blue, Set plant air supply within 80 to 100 psi (5.5 to 6.9 bar). Where required, use an EFD five-micron filter regulator #2000F755 (see Warranty). nontoxic test fluid (included with the dispenser) to the 10cc adapter head. ❷ Attach the air input hose coupling to the dispenser. Pull back metal ring to attach to dispenser. ❸ Plug in the polarized, foot pedal connector.
Controls & Connections ❸ Power switch Air pressure regulator ❶ ❷ Barrel vacuum control ❹ Air output quick-connect Vacuum transducer Voltage selector and fuse cartridge 120 Air gauge Air input Power input receptacle Foot pedal receptacle
Setup for Testing Power switch ❶ should be off. The amount of material dispensed each cycle depends on the combination of air pressure, viscosity of material, dispensing tip size and the length of time the foot pedal is pressed. The first step is to remove the tip cap from the prefilled barrel of blue test material (twist and pull). Replace it with an 18 gage (green) tapered dispensing tip. Press the tip on and twist clockwise to lock.
Testing the Dispenser You are now ready to test the dispenser using the prefilled barrel of blue, nontoxic test material. Begin with the following settings: Thick fluid (blue) Thin fluid (clear) Air gauge 10 psi (0.7 bar) 5 psi (0.4 bar) Dispense tip 18 gage (green) 25 gage (red) Vacuum control Off On (see page 9) Press the power switch on. It will light green. Holding the barrel as shown, rest the tip on a piece of paper.
Using the Vacuum Control The vacuum control allows low viscosity fluids, even water, to be consistently dispensed without dripping between cycles. The vacuum exerts a negative pressure on the fluid in the barrel and prevents dripping. For these tests, you will use the test barrel with the clear fluid. 1. While holding the barrel upright in one hand, remove the orange end cap and insert the white SmoothFlow™ piston. Carefully press the piston down until it contacts the fluid.
Advanced Dispensing System TM If you dispense thick fluids, several problems may occur. First, the repetitive air cycles can bore tunnels through non-leveling fluids, causing spitting and inconsistent deposits. Second, thick fluids contain trapped air that leads to drooling and oozing. For Thick Fluids Air Pressure ON Air Pressure OFF These problems are eliminated by using the SmoothFlow™ piston.
If you use low to medium viscosity fluids, the white SmoothFlow™ piston has several advantages. For Thinner Fluids First, vacuum adjustment is much less sensitive. Second, the piston prevents fumes from the fluid being exhausted into the work environment. Third, the piston prevents fluid backflow into the dispenser if the barrel is inadvertently turned upside down. Fourth, using the piston makes it easy and safe to change tips without dripping.
Loading the Barrel Reservoirs Caution: Do not completely fill barrels. The optimum fill is a maximum 2/3 of the barrel capacity and 1/2 of the barrel capacity when using the LV Barrier™. If the fluid you are dispensing is pourable, take the barrel, twist on a tip cap and pour your fluid in. If appropriate, insert the SmoothFlow™ piston (see pages 10-11). Carefully press the piston down until it contacts the fluid. The barrel is now ready for use.
EFD offers productive alternatives to traditional barrel-loading methods. Here are a few suggestions that can help keep your work area clean, save time and reduce the chance of entrapped air in the fluid. 1. You could use the EFD #920BL barrel loader. Pack the fluid into the 12 ounce cartridge as shown. Then place the pre-filled cartridge into the barrel loader. Using air pressure, the barrel loader fills the barrel (with piston) from the bottom up. If the fluid comes packed in a 1/10 gallon (300 ml.
Suggestions & Reminders 1. Always use an EFD piston to make your barrel loading, dispensing and handling cleaner, safer and more accurate. Caution: If you dispense watery-thin fluids and choose not to use SmoothFlow™ pistons – do not increase vacuum pressure rapidly and do not tip the barrel. Vacuum may pull liquid into the air hose; or when tipped, liquid may flow back into the dispenser. 2. Always use new barrels and tips. Carefully dispose of after use.
ULTRA System™ Dispensing Components For complete selection and technical details, please refer to EFD Catalog and price list. Barrel adapter assemblies General purpose precision tips Molded one-piece, yellow, SnapLok™ adapter head with Buna N O-ring, flexible 5/32" O.D. hose, male quick-connect and safety clip. All EFD dispensing tips incorporate the unique SafetyLok™ color-coded polypropylene hubs. Conveniently packaged (50) tips per see-through box for easy part identification.
EFD Two Year Limited Warranty All components of EFD dispensers are warranted to the original end user for two years from date of purchase. Within the period of this warranty, EFD will repair or replace free of charge any defective component on return of the part, or the complete dispenser, prepaid to the factory. In no event shall any liability or obligation of EFD arising from this warranty exceed the purchase price of the equipment.
