DURASONIC DS25L User manual

Ultrasonic Cleaners
User Manual
Table-Top Unit

2
Warranty
Ultrasonic Cleaners, when used in accordance with manufacturer's instructions and
under normal use, are guaranteed for one year parts and labor and an additional
year of parts only. Within the period guaranteed, manufacturer will repair or replace
free of charge, at its sole discretion, all parts that are defective because of material or
workmanship, not including costs for removing or installing parts. Liability, whether
based on warranty, negligence or other cause, arising out of and/or incidental to sale,
use or operation of the transducer elements, or any part thereof, shall not in any case
exceed the cost of repair or replacement of the defective equipment, and such repair or
replacement shall be the exclusive remedy of the purchaser, and in no case will we be
responsible for any and/or all consequential or incidental damages including without
limitation, and/or all consequential damages arising out of commercial losses.
CAUTION
Do not place parts or containers directly on the bottom of the cleaning tank;
use a tray or wire to suspend items.
Do not allow the solution to drop more than 1”1/2 inch below the top of the
tank.
Do not ever use alcohol, gasoline, or flammable solutions. Doing so could
cause a fire or explosion. Use only water-based solutions.
Do not use mineral acids. These could damage the tank.

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Table of Contents
Warranty ....................................................................................................................................................... 2
Safety Precautions ........................................................................................................................................ 4
Introduction .................................................................................................................................................. 5
Ultrasonic Cleaners ................................................................................................................................... 5
Optional Accessories for Your Cleaner ..................................................................................................... 5
Unpacking Your Cleaner............................................................................................................................ 5
Installing Your Cleaner .................................................................................................................................. 5
Equipment Specifications.............................................................................................................................. 6
How Ultrasonics Work .................................................................................................................................. 6
What is Ultrasonic Cleaning Technology?................................................................................................. 6
How Can Sound Waves and Ultrasonic Cavitations Clean? ...................................................................... 7
Ultrasonic Cleaning Cleans Every Nook and Cranny ................................................................................. 7
Ultrasonic Cleaning Power and Frequency............................................................................................... 7
Operating Your Cleaner ................................................................................................................................ 7
Operating Your Cleaners:.......................................................................................................................... 8
Explanation of Controls............................................................................................................................. 9
Degassing .................................................................................................................................................. 9
Cleaning Items.........................................................................................................................................10
Operating Your Cleaner………………………………………………………………………………………………………………………..11
Draining Your Cleaner ................................................................................................................................. 10
Optimizing Your Cleaner .............................................................................................................................10
Application Hints.........................................................................................................................................11
Cleaning Methods ....................................................................................................................................... 12
Cleaning Solutions.......................................................................................................................................13
Solution Types.........................................................................................................................................13
Solution Amounts ...................................................................................................................................13
Chemicals Harmful to Your Tank.............................................................................................................14
Troubleshooting.......................................................................................................................................... 15
Service Information.....................................................................................................................................16
Technical Support .......................................................................................... Error! Bookmark not defined.

4
Safety Precautions
Before using your Ultrasonic Cleaner, please read and thoroughly understand
these safety precautions. Failure to follow them may result in serious personal injury or
property damage.
To avoid electrical shock:
•Unplug from power source before filling or emptying the tank.
•Keep the control panel and the area around the cleaner clean and dry -- wipe up
solution which spills over the tank brim. Water and high voltage can cause electrical
shock.
•Do not operate the cleaner without proper grounding.
•Do not remove the grounding prong on the line cord plug.
•Do not disassemble your cleaner -- high voltage inside the cleaner is dangerous.
•Do not immerse the cleaner in water.
To prevent personal and/or property damage:
•Operate the cleaner with a vented cover or no cover.
•Use water-based solutions.
•Do not ever use alcohol, gasoline, or flammable solutions. Doing so could cause a
fire or explosion and will void your warranty. Use only water-based solutions.
•Do not ever use mineral acids. These could damage the tank.
•Do not touch the stainless-steel tank or cleaning solution -- they may be hot.
•Do not allow fluid temperature to exceed 70°C (160°F).
•Do not place your fingers or hands into the tank while the cleaner is operating. Doing
so may cause discomfort and possible skin irritation. Avoid contact with solutions
and provide adequate ventilation.
•Do not use solutions containing chlorine bleach.
To prevent damage to the cleaner:
•Change your solution regularly.
•Do not cover vents on the housing.
•Do not operate the cleaner dry.
•Do not place parts or containers directly on the bottom of the cleaning tank; use a
tray or wire to suspend items. Failure to comply may cause transducer damage and
will void your warranty.
•Do not allow the solution to drop more than 1½ inch from top of tank with heat or
ultrasonics on. Failure to comply may cause transducer and/or heater damage and
will void your warranty. The fill line is 1” from top of the tank.

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Introduction
Ultrasonic Cleaners
These DuraSonic ultrasonic cleaners includes four models with sizes ranging from 11
to 25 liters. Each model is constructed using durable industrial style 40kHz
transducers. These provide increased cleaning power along with built in sweep
frequency to ensure uniform cleaning activity throughout the bath. The five larger sizes
have built in drains. Each model has a digital timer and mechanical thermostat, with a
power switch/fuse in the rear of the machine.
When you first fill your unit, or refill it with fresh solution, use warm water for the
solution. Turn on the heater, set timer and turn on the ultrasonics (press the ON/OFF
touch-screen button, and use the arrow buttons for timing purposes), place the cover,
and the solution will heat to temperature.
Optional Accessories for Your Cleaner
Accessories include a cover and a mesh basket.
Unpacking Your Cleaner
Please check your cleaner and its carton carefully for any external or internal damage. If
you find damage, contact your shipping carrier immediately, before contacting your
distributor. Please retain your packaging for future use.
Installing Your Cleaner
Check the plate on the back of the cleaner for correct power requirements. Position your
cleaner within easy reach of a standard grounded electrical outlet. Do not place the
cleaner on a circuit which could become overloaded. Connect the Machine to GFI
outlet.
If your cleaner does not operate correctly, first refer to the troubleshooting section for
possible causes, or contact an authorized service center listed at the back of this
manual, for additional information.

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Equipment Specifications
Tank
Capacity
Ultrasonic
Frequency
Khz
Tank Dimensions
(L x W x H)
Weight
Power
Supply
U.S.
Power
(Watts
Peak)
Warranty
Heat (w/
Temp
Control)
Fuse
Size
Amp
11 Liter
40 Khz
12” x 9” x 6”
(L x W x H)
40 lbs.
AC 100 ~
120v, 50 /
60Hz
400 W
1yr prts/lbr
+ 1 yr parts.
Yes
8
15 Liter
40 Khz
11.5” x 11” x 8”
(L x W x H)
40 lbs.
AC 100 ~
120v, 50 /
60Hz
500 W
1yr prts/lbr
+ 1 yr parts.
Yes
10
20 Liter
40 Khz
12.25” x 11” x 10”
(L x W x H)
40 lbs.
AC 100 ~
120v, 50 /
60Hz
500 W
1yr prts/lbr
+ 1 yr parts.
Yes
10
25 Liter
40 Khz
18.5” x 11.5” x 8”
(L x W x H)
60 lbs.
AC 100 ~
120v, 50 /
60Hz
600 W
1yr prts/lbr
+ 1 yr parts.
Yes
15
10 Gallon
40 Khz
19.5” x 11” x 10”
(L x W x H)
60 lbs.
AC 100 ~
120v, 50 /
60Hz
720/960 W
1yr prts/lbr
+ 1 yr parts.
Yes
15
How Ultrasonics Work
Dirty items come clean in ultrasonic cleaning systems when millions of superheated
bubbles scrub grime and oxidation away with stunning results. How? Through the
process of de-cavitation.
Ultrasonic cleaning systems send high frequency sound waves ripping through an
ultrasonic cleaning solution leaving superheated bubbles in the waves’ wake. When
these bubbles, called cavitations, collapse, called decavitation, the heat and energy of
their implosions work with the specially formulated ultrasonic cleaning solution to
remove dirt, oils, residue, and oxidation from the surface of the contaminated item.
Imagine the ability to get into the tiniest of nooks and crannies where dirt and grime
hide, and then imagine scrubbing that surface ultra clean. With conventional cleaning –
brushes, rags and elbow grease –this task seems impossible. But the cavitating
cleaning action of an ultrasonic cleaning system does just that –It goes where brush
bristles can’t.
What is Ultrasonic Cleaning Technology?
Ultrasonic cleaning technology is high frequency sound waves creating a phenomenon
in a fluid called cavitating action, or cavitations. Cavitations, the superheated bursting of
bubbles in a fluid, are what make ultrasonic cleaning work.

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How Can Sound Waves and Ultrasonic Cavitations Clean?
When a sound wave travels through fluid, it stretches and compresses the fluid to
transmit sound. When the sound wave's amplitude increases to a threshold level, when
the fluid cannot hold the “stretch” of the sound wave, the sound wave energy literally
tears the water apart and vacuum bubbles are formed.
Each vacuum bubble grows in size until it can grow no more –equilibrium is reached
between the bubble and the fluid –at equilibrium, the bubble is compressed by the
surrounding fluid pressure until it collapses. At collapse, a tiny liquid jet is created in the
bubble’s place.
Each liquid jet creates estimated temperatures and pressures of over five thousand
degrees Celsius and ten thousand PSI when the collapse occurs. The extreme pressure
and temperature of the jet provides the phenomenon responsible for the effective
ultrasonic cleaning action. This action occurs millions of times, over and over, while the
sound waves are traveling through the fluid.
Ultrasonic Cleaning Cleans Every Nook and Cranny
When the item being cleaned is submerged in the ultrasonic tank’s fluid, the millions of
jets created by ultrasonic energy are capable of reaching into fine depressions and
intricate details. Every surface area is exposed to the ultrasonic cleaning action; cracks,
crevices and hard to reach corners of every nook and cranny get cleaned by the
ultrasonic cavitating action. Ultrasonic sweep cleaning technology enhances the
system’s ability to clean.
Ultrasonic Cleaning Power and Frequency
Ultrasonic system power is rated in how much energy, in watts, is generated in the
ultrasonic tank. Higher power systems generally mean shorter part immersion times in
the fluid. The ideal cleaning frequency is determined by the size of dirt being cleaned.
Simply speaking, higher frequencies are more capable it is of removing smaller
particles, lower frequencies are better suited for large dirt particles.
Many ultrasonic systems can be configured with multi-frequency technology, giving you
the benefit of multiple cleaning frequencies in a single design package.
Operating Your Cleaner
If this is the first time you are using the cleaner, please read this whole section before
operating your cleaner.

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Operating Your Cleaners:
TO SET TIME: TURN OFF ULTRASONICS, USE MODE TO SELECT TIMER, USE
UP/DOWN ARROWS TO SET TIME.
TO SET TEMP: PRESS TWICE "SET TEMP", USE UP/DOWN ARROWS TO SET
TEMP, PRESS ONCE “SET TEMP” RED LED BLINKS WHEN HEATER IS ON, PRESS
“SET TEMP” TO TOGGLE HEAT FROM ON TO OFF.
TO ADUST ULTRASONIC POWER: USE LEFT/RIGHT ARROWS.
TO TURN MACHINE ON: FLIP BACK POWER SWITCH TO ON, AND PRESS FRONT
“ON/OFF” BUTTON.
TO TURN MACHINE OFF: TURN OFF ULTRASONICS FROM THE FRONT “ON/OFF”
BUTTON, AND FLIP BACK POWER SWITCH TO OFF.
Heat Light Indicator
Temperature Control
Sweep Mode
On/Off Button
Timer Control Buttons; Set timer
only when ultrasonics is off
Mode Button
Ultrasonic Power Adjustment

9
Explanation of Controls
Control
Function
HEAT
Activates heat to 55 C Maximum.
TIMER
Activates ultrasonics and sets time.
Turn Knob to desired heat. Turn clockwise to hold position for
continuous heat operation.
Before You Start Cleaning
CAUTION!
•Do not place parts or containers directly on the bottom of the cleaning tanks; use a
tray or wire to suspend items.
•Do not allow the solution to drop more 1 ½” from top of tank.
•Do not ever use alcohol, gasoline or flammable solutions. Doing so could cause a
fire or explosion. Use only water-based solutions.
•Do not ever use mineral acids. These could damage the tank.
Failure to comply with these cautions will void your warranty.
Step
Action
1
Select your cleaning solution (refer for solution effects on metals)
2
Allowing for the volume of the parts you will be cleaning and operation level
line (one inch from the top)
3
Add cleaning solution to the tank of water
4
Plug the cleaner into a ground outlet
NOTE:
If this is the first time you are running the cleaner, or if you have changed cleaning
solution, you must degas the solution. If not, skip to “Cleaning Items”.
Degassing
Step
Action
1
Turn the HEAT ON
2
Turn the TIMER to 5-10 and let the cleaner run to allow the solution to
“degas”.

10
Cleaning Items
NOTE: To stop ultrasonics at any time, press red off button.
Step
Action
1
Set the TIMER for the amount of time you wish the items to be cleaned.
2
Place the items into a basket.
3
Slowly lower the basket into the tank. Do not allow items to contact the tank
bottom.
4
When items are clean and time is up, slowly remove them from the cleaner.
5
Rinse the clean items with clean water and dry them, if necessary.
Draining Your Cleaner
Warning
Do not immerse the cleaner in water.
Unplug the cleaner from the power source.
2L, 3L, 4L, and 6L models do not have a drain. To empty, use the side of the rim to
pour the used solution into a waste disposal unit, rinse the tank thoroughly and refill with
new solution.
Optimizing Your Cleaner
Cleaning - check the tank for contamination whenever you change solution. If
necessary, remove contaminants with a nonabrasive cloth and water.
Emptying - always unplug the cleaner before emptying the tank. Empty the solution into
a waste disposal unit.
Filling - always unplug the line cord before filling the tank. Fill the cleaner to the
operating level (one inch from the top with beaker/tray in place), using warm tap water.
Low solution level - will cause the cleaner to fail. When you remove heavy or bulky
loads from the cleaner, the solution level may drop below the operating level. If so, be
sure to replace lost solution and degas, if necessary, depending on the amount used.
Overload - do not rest any items on the tank bottom. Weight on the tank bottom
dampens sound energy and will cause damage to the transducer. Instead, use a tray
and/or beaker positioning cover to support all items. Allow at least one inch between the
tank bottom and the beaker or receptacle for adequate cavitation.
Covers - allow the cleaner to heat up faster, to a higher temperature, and avoid
excessive liquid evaporation.
Heater - the heater may cause some discoloration of the tank wall. This is normal and
will not affect the performance of the unit.