EFD 800 User manual

Operating Guide
Model 800 Dispenser
®
A NORDSON COMPANY
US: 800-556-3484 In the UK: 0800 585733 In Mexico: 001-800-556-3484

☎
Introduction
Model800fluiddispenserprovidesyearsoftrouble-free,productive
service. ThisOperatingGuidewillhelpyoumaximizetheusefulness
of your new dispenser.
Pleasespendafewminutestobecomefamiliarwiththecontrolsand
features of your new dispenser. Follow our recommended testing
procedures. Reviewthehelpfulinformationwehaveincludedbased
on over 30 years of industrial dispensing experience.
Mostquestions youwill haveare answeredin thisGuide. However,
ifyouneedassistance,pleasedonothesitatetocontactEFDoryour
authorized EFD distributor.
In the US, call 800-556-3484.
In Mexico, call 001-800-556-3484.
In the UK, ring free 0800 585733.
The EFD Pledge
We pledge that you will be completely satisfied with our products.
We endeavor to ensure that every EFD product is produced to our
no-compromise quality standards.
If you feel that you are not receiving all the support you require,
orifyouhaveanyquestionsorcomments, I invite you towriteorcall
me personally.
Our goal is to build not only the finest equipment and components,
butalsotobuild long-term customer relationships foundedonsuperb
quality, service, value and trust. Randall Richardson, President
Model 800 Specifications
Input voltage: Selectable
100/120/220 VAC 50/60Hz 26/20 VA
Air input: 80 to 100 psi (5.5 to 6.9 bar)
Internal voltage: 24 VAC
Foot pedal voltage: 24 VAC
800
7¼x 8½x 2⅝" 3 lb 4 oz
(18.4 x 21.6 x 6.7 cm) (1.48 kg)
Air output: 0 to 100 psi (0 to 7.0 bar)

First: Unpackandusethechecklistenclosedwith
the Dispenser Kit to identify all items. If there is
any discrepancy, please call us immediately.
Second: Powerandcompressedplantairshould
be available where the dispenser is to be set up.
Air pressure should be between 80 and 100 psi
(5.5and6.9bar). IfyouarenotusinganEFDfive-
micron filter regulator #2000F755, be certain
your plant air is properly filtered and dry.
Bottled nitrogen can be used.
Warning: Ifhighpressurebottledair or nitrogen is
used,a high pressure regulator must be installed
onthebottleandsetupat100psimaximum.The
#2000F755 filter regulator is not required.
Check the voltage label to be certain it is set to
the available power.
Third: Now is a good time to ACTIVATE your
extendedTwo Year Limited Warranty. Please fill
inandreturn thepostagepaidWarrantycard. Or
ifyou prefer, call the appropriate toll-free number
listed below, provide the serial number of your
dispenser and respond to a few short questions.
You are then assured of complete protection for
two years.
US, call 800-556-3484.
In Mexico, call 001-800-556-3484.
In the UK, ring free 0800 585733.
ThismanualisfortheexpressandsoleuseofEFDdispenserpurchasers
andusers, andno portionof thismanualmaybereproducedinany form.
EFD, ULTRA System, LV Barrier, SmoothFlow, ZeroDraft, SafetyLok,
SnapLokandDispenStand are trademarksofEFD Inc. ©2001 EFDInc.
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................................ 15
Two Year Limited Warranty....................... 16
Meets applicable CSA and CE requirements.
Reference CSA LR File Number 84105
First Steps
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800
Plant air, 125 psi maximum to
regulator. Output from regulator
should be a minimum of 80 psi,
maximum 100 psi.
❶
❷
Check voltage label
on dispenser
❸
❼
Male quick-connect,
insert and twist to lock
❹
❻
❺
Air input
hose
Power cord
Adapter
assembly
Foot pedal
assembly
Blue test
fluid

Dispenser Hookup
❶Connect the air input hose to a plant air source.
Setplantairsupplywithin80to100psi(5.5to6.9
bar). Where required, use an EFD five-micron
filter regulator #2000F755 (see Warranty).
❷Attachtheairinputhosecouplingtothedispenser.
Pull back metal ring to attach to dispenser.
❸Plug in the polarized, foot pedal connector.
❹Check the voltage label on the input voltage
selector cartridge. To change the voltage,
remove the voltage selector from the cartridge,
rotate it and position the correct voltage to show
through the cartridge window. Replace the
cartridge into the power cord receptacle and
insurethatbothsidessnapsecurelyintoposition.
Install the power cord.
Spare Fuse
Cartridge Window
(check voltage indicated)
Voltage Value
❺Attach the 10cc barrel prefilled with blue,
nontoxic test fluid (included with the
dispenser) to the 10cc adapter head.
❻Take the 10cc barrel adapter assembly
(#5150 on the adapter head) and insert the
black,malequick-connectintotheairoutput
fitting on the front panel and turn clockwise
to lock. Place the barrel in the barrel stand.
❼Duringtheinitialtesting, you will notusethe
vacuum control. Keep this control shutoff
(turnedcompletelyclockwise—donotforce).
220
120
100
Note: The dispenser is shipped with the fuse
cartridge set for 120 VAC input.

Controls & Connections
❹
Foot pedal
receptacle
Air input Power input
receptacle
Vacuum
transducer Voltage selector and
fuse cartridge
Barrel
vacuum control
Air output
quick-connect
Power
switch
❸❷
Air pressure
regulator
❶
Air gauge
120

Power switch ❶ should be off.
The amount of material dispensed each cycle depends on the
combinationofairpressure,viscosityofmaterial,dispensingtipsize
and the length of time the foot pedal is pressed.
Thefirststepis toremovethetipcapfromthe prefilledbarrelofblue
test material (twist and pull). Replace it with an 18 gage (green)
tapered dispensing tip. Press the tip on and twist clockwise to lock.
Pull out air pressure regulator knob ❷until it "clicks" into the
unlockedposition. Turnclockwisetoadjusttheairpressureto10psi
(0.7 bar) for the initial tests.
Always set the pressure desired by turning the air regulator knob
❷clockwise. To reduce the pressure, turn the knob counterclock-
wiseuntiltheairgauge❸readsalowerpressurethandesired.Then
increase and stop at desired pressure. Push knob in to lock.
Be sure barrel vacuum control ❹is turned off (turn clockwise) for
initial tests.
Press power switch ❶to turn on the dispenser. It will light green.
Please continue to page 8 for test procedures.
model 800
Setup for Testing

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. Press
the foot pedal until the tip fills and some fluid is pushed out onto the
paper. (Repeat this whenever you change to a new tip.)
Use the Dot Test Sheet supplied, and press the foot pedal to make
a dot or stripe. Make several more deposits, carefully applying the
tip at the angle shown and removing the tip as shown.
Remember - always bring the tip in contact with the work surface at
theillustratedangle. Afterthe tip is inposition,pressthefoot pedal.
A continuous flow of material will occur as long as the foot pedal is
pressed.
Trydifferentpressuresettings. Continuetoexperimentbyreplacing
the green tip with the blue (22 gage) tapered tip included in the Dot
TestKit. Notethe effects of airpressureand tip sizeonthe deposit.
Adjusting the Deposit Amount
The deposit size is determined by the tip diameter, the output air
pressure setting and the length of time the foot pedal is pressed.
Toincreasethedepositsize,slightlyincreaseoutputairpressure,or
increase tip size, or both. To decrease the deposit amount, use a
smaller tip size, or lower the air pressure.
Testing the Dispenser
Correct angle for making deposits.
Remember-alwaysbringthetipin
contact with the work surface at
theillustratedangle. Afterthetipis
in position, press the foot pedal.
Release pedal and remove tip by
lifting straight up.

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.
Forthesetests,youwillusethetestbarrelwiththe
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.
Besuretopushitfarenoughtoremoveallair,
but not into the fluid, since this will force the
fluid up along the sides of the piston.
2. Attach the barrel to the yellow adapter head.
Snap the safety clip tightly closed to prevent
anydrippingorbubbling. Remove thetipcap
and attach the 25 gage (red) tip.
3. Set air pressure at 5 psi (0.4 bar).
4. With the barrel pointing downward over a
container, press the foot pedal to fill the tip.
Remove
tip cap
Insert
SmoothFlow™
piston
Remove
orange
end cap
5. If a drop begins to form at the end of the tip,
slowlyturn the vacuum control knob counter-
clockwise to stop the drop from growing.
Wipe the tip and slowly adjust vacuum as
necessary.
6. Take the barrel and place the tip on the Dot
TestSheet. Pressthefootpedalandrelease.
Check the deposit. You control the fluid flow
Regardless of the viscosity of the fluid you use,
youshouldtryusingtheSmoothFlow™piston(see
pages 10-11).
Ifyouchoosenottousethepiston,pleasereadthe
following points. rate by increasing the air pres-
sure output (higher flow) or decreasing the air
pressure output.
Do not tip the barrel
upside down or lay flat.
This will cause the fluid
to run into the dispenser.
When changing tips or attaching
a tip cap, snap the safety clip
completely closed to prevent any
dripping or bubbling.
Three things to remember
If you do not use the piston
when dispensing thin fluids:
Use an EFD filter trap
(#1000FLT-Y). This filter trap
will impede the flow should the
low viscosity fluid be sucked
back towards the dispenser.
Open
Closed

Advanced Dispensing System
TM
If you dispense thick fluids, several problems may
occur. First,therepetitiveaircyclescanboretunnels
through non-leveling fluids, causing spitting and
inconsistent deposits. Second, thick fluids contain
trapped air that leads to drooling and oozing.
TheseproblemsareeliminatedbyusingtheSmoothFlow™
piston. That's because the white pistons prevent
tunneling by providing a barrier to the pulsed-air
cycles, and prevent oozing by responding to the
pressure of trapped air with a slight suck-back
movement after the dispense cycle.
The white piston is used for most fluids.
However, if you are applying RTV silicone and find
thatthepistonbouncesandcausesstringing,switch
to the orange, flat wall piston.
TheSmoothFlow™pistonsmakebarrelfillingeasier,
too. As you load the fluid in, air is trapped in the
bottom and throughout the fluid. Simply insert a
SmoothFlow™piston and gently press down on the
fluid as far as possible. This action forces out most
of the air and results in consistent deposits.
For Thick Fluids
Air Pressure
OFF
Air Pressure
ON
No drip
or ooze.