Operating Guide 900 Series Dispenser 900 • 900-15 • 900-CA ® US: 800-556-3484 US:• 800-556-3484 UK: 0800 585733 Mexico: 001-800-556-3484 In the UK: •0800 585733 In Mexico: 001-800-556-3484 A NORDSON COMPANY
Introduction The 900 Series fluid dispensers provide 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 Hookup .................................................... 4-5 Setup for Testing ...................................... 6-7 Testing the Dispensers ............................ 8-9 Making Timed Deposits of Medium to Thick Fluids Changing Deposit Size and Drawing Stripes Programmable Timer .................................. 9 How to Use the Vacuum Control ..........
Note: For hookup purposes, connections for the 900, 900-15 and 900-CA models are identical. ❸ ❶ Foot pedal assembly Power cord Air input hose ❷ Check voltage label on dispenser Adapter assembly Plant air, 125 psi maximum to regulator. Output from regulator should be a minimum of 80 psi, maximum 100 psi.
Hookup ❶ Connect the air input hose to a plant air source. 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). 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. ❹ Check the voltage label on the input voltage selector cartridge.
Controls & Connections Note: The controls for the 900, 900-15 and 900-CA dispenser models are identical.
Setup for Testing Power switch ❶ should be off. The amount of material dispensed each cycle depends on the combination of air pressure, time of air pulse, viscosity of material and dispensing tip size. Note: The following steps refer to the 900 dispenser. For the 900-15 and 900-CA dispensers, refer to “Making Timed Deposits of Watery-thin Fluids” on page 10. The first step is to remove the tip cap from the pre-filled barrel of blue test material (twist and pull).
Testing the Dispensers Making Timed Deposits of Medium to Thick Fluids (Model 900) You are now ready to test the pre-filled, nontoxic, blue test fluid. This material is representative of thick, non-leveling fluids like sealants, pastes or greases. 8 30 Check your initial settings: A) Air gauge reads 30 psi. B) Timer is set at #7. C) Green tapered tip is on the test barrel. D) Power and timer bypass switches are on. 7 6 2 Pressure Timer Correct angle for consistent deposits.
Changing Deposit Size, Drawing Stripes The dot size is determined by the tip diameter, the air pressure output setting and the pulse time. For large dots, use a large tip, higher pressure and more time. Normally, you want to use as short a time pulse as possible. To increase the dot size, slightly increase output air pressure, or increase tip size, or both. Dot Test with Green Tapered Tip First, follow the settings illustrated on the right, and you will get dots about the size shown.
How to Use the Vacuum Control Making Timed Deposits of Watery-thin Fluids (Models 900, 900-15, 900-CA) 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 supplied with the clear fluid. 1. While holding the barrel upright in one hand, remove the orange end cap ❶ and insert the blue LV Barrier™ ❷.
Three things to remember If you do not use the piston when dispensing thin fluids: If you choose not to use the piston, please follow these instructions carefully: 1. While holding the barrel upright in one hand, twist on an orange tip cap. Using the small funnel, fill about 2/3 full with your fluid. 2. Open the safety clip and attach the barrel to the 10cc adapter. 3. Close the safety clip as tight as possible. 4. Increase vacuum by turning vacuum control knob counterclockwise and set to 1.
TM Advanced Dispensing System 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 page 13). 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.
Schematic & Parts Replacement Parts List 7 23 8 3 30 30 10 25 9 19 14 22 27 26 20 24 29 2 28 4 12 17 6 11 5 15 Input air Regulated air Vacuum 1. 1000INP-AKIT* Air input hose-mini coupler 2. 2-2002A-XL 2-2002-XL Regulator assembly 0 to 15 psi Regulator assembly 0 to 100 psi 3. 2-2003-1000 24 VDC solenoid assembly 4. 2-2004B Quick-connect assembly 5. 2-2007-XL Potentiometer assembly 6. 2-2011-24 Timer bypass switch assembly 7. 7111E Fuse .160A 8.
Troubleshooting 1. Check voltage at wall outlet. NO POWER POWER, BUT NO LIGHT POWER, LIGHT, BUT MACHINE DOES NOT OPERATE INCONSISTENT DOTS MATERIAL SUCK-BACK TIMER SEEMS INOPERATIVE 2. Check fuse. Order replacement fuse #7111E. 3. Unplug from wall, remove top cover, visually inspect for any loose or shorted connections. Switch module must be replaced. 1. Unplug power input cord. 2. Check foot pedal connection, foot pedal and internal switch. 1.
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.
