
Warranty
This ultrasonic Cleaner, when used in accordance with manufacturer’s
instructions and under normal use, is guaranteed for two years after
date of shipment. Within the period guaranteed, we will repair or
replace free of charge, at our 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 basket or other device to suspend items.
• Do not allow the cleaning solution level to drop more than four
inches 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 ever use mineral acids. These could damage the tank.
Failure to comply with these cautions will void your warranty.

Contents
Front Warranty
Cover
1 Safety Precautions
3 Introduction
3 DHA-1000 General Information
4 Accessories
4 Unpacking Your Cleaner
4 Installing Your Cleaner
5 Equipment Specifications
6 How Ultrasonic Cleaning Works
7 Operating Your Cleaner
7 Before You Start
7 Explanation of Controls
8 Getting Ready
8 Cleaning Items
9 Optimizing Your Cleaner
10 Application Hints
11 Cleaning Solutions
13 Troubleshooting
14 Performance
15 Service

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:
• Do unplug from power source before filling or emptying the tank.
• Do keep 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:
• Do use water-based solutions.
• Do not ever use alcohol, gasoline or flammable solutions. Doing so
could cause a fire, explosion, or serious personal injury 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 80ºC (175ºF).
• 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.
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To prevent damage to the cleaner:
• Do change your solution regularly.
• Do not operate the cleaner dry.
• Do not place parts or containers directly on the bottom of the cleaning
tank; use a basket or other device to suspend items. Failure to
comply may cause transducer damage and will void your warranty.
• Do not allow the cleaning solution level to drop more than four inches
below the top of the tank with heat or ultrasonics on. Failure to
comply may cause transducer and/or heater damage and will void
your warranty.
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Introduction
DHA-1000 General Information
This DHA-1000 ultrasonic cleaner is a self-contained unit which consists
of a powerful ultrasonic generator, a stainless steel cleaning tank and an
array of durable industrial style 44 kHz transducers. These transducers
provide increased cleaning power and ensure uniform cleaning activity
throughout the bath. The unit includes heaters and controls to raise the
bath temperature for improved cleaning activity. The DHA-1000
incorporates a drain and is available in three voltages to meet
requirements around the world. Be sure the unit you have purchased is
correct for your area.
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