Conrad SJ-A2 Technical manual

ULTRASONIC CLEANER (model no.: SJ-A2)
Item No. 2620929
Operation instruction
Thank you for purchasing the ultrasonic cleaner please read these operation instructions carefully
before using and retain them for future reference
Product Presentation
Timer Digital display ONIOFF
When you connect the power plug, the display screen shows "000"and the machine is in standby
mode.
Short press the" "to switch to the desired cleaning time selection, and then press the"
" key to start it.
When the machine is working，tap the power" " key to suspend and the screen
countdown is suspended. Tap it again to restart it
Short press to select the time
[90s,180s,280s,380s,480s),touch control
ON/OFF, touch control
The Functions

Safety Precautions
Safety precautions (must be strictly observed and implemented)
To avoid serious personal injury and damage to property, be sure to comply with the following
instructions.
Ignoring the contents of the identification and the harm caused by using the wrong method will be
distinguished by the following signs.
Warning The contents of the identification column cover Possible circumstances Leading to
Death or Serious Injury
Notice The contents of the identification column cover Possible injury or Loss of Property.
Contents that we wish to be observed is distinguished by the following pattern. (Here is an example
of a pattern)
This pattern indicates「NO」
This pattern indicates「Must be implemented」
Warning
Do not allow children to use or place the device in places that children cannot touch.
-- Could cause burns, electric shock and injury
People who fit with a pacemaker internally can’t use this product -- Could cause a sense of
discomfort.
Do not operate the machine without filling water into the tank -- Overheating will cause burns or
malfunctions. Do not put in flammable liquid. -- Could cause a fire.
Do not spray water or liquid over the device and tank.
-- Wetting the bottom will cause internal water intake, which causes electric shock fire and
malfunction Do not use the machine at any damp places
-- Could cause electric shock, fire and malfunction
Do not touch the electrical connection with any metal objects. -- Could cause electric shock, fire
and malfunction Do not disassemble, repair modify the machine -- Could cause electric shock or
injury.

Precautions for Use
Attention to Adapters
ATTENTION
Do not use products other than special adapters -- Could cause fire electric shock.
Do not touch the power plug with wet hands especially when inserting or removing the plug
--Could cause fire electric shock and malfunction
Remove the power plug from the socket if the device is not going to be used for a long time
.- Easy to cause fire electric shock and malfunction
Precautions for Use
ATTENTION
When the machine is used several times continuously, to avoid the damage and failure of the parts
caused by overheating the machine will enter into a system of self-protection, it can be resumed
after about 5 minutes
Do not get water directly from the tap
-- Flooding of the device and power switches will lead to malfunction
Do not add anti-toxic, sterilizing or acidic solvents into the cleaning water.
-- May cause deterioration of resin and damage of stainless steel
Do not clean pearls and other low surface hardness articles. (Morse hardness of less than 8)
-- Can cause damage, discoloration or loss of luster.
Do not wash rings necklaces with gems and diamonds for long periods of time.
--May cause gems/diamonds to fall off
DO NOT use the same socket as TV, radio and computer -- Can affect the picture clarity or cause
noise.
Prevent the device from a falling and a violent shaking -- Can cause breakage, deformation,
malfunction。

Items Type
Items not suitable
for ultrasonic
cleaning
Type Specific items
Wooden articles Turtle shell frame pearl, earthen
stone, opal emerald, coral
, ivory,
Emerald, stone, Lacquer ware
Gems with softer surfaces
Coating and finishing inferior products
Bonded gemstones
Items with scratches and cracks
*It may not be possible to completely remove the remaining denture stone dental wax. wax yellow,
black spots and smoking dental wax…etc.
*Possible inability to clean fixed sedatives in dentures
*Discoloration and rust of metals and precious metals cannot be removed
*To clean bonding jewels, diamond necklaces and rings may cause them to fall off.
Items can be cleaned
Type Specific items
Glasses Spectacles (without UV film)
tortoiseshell frame
Office supplies
category
Ruler, scissors, pen seal…etc.
Daily Supplies
Toothbrush, razor blade, comb…etc.
Jewelry
Rings, Necklaces, earrings…etc.

Specifications
Product Name: Ultrasonic cleaner
Product Model: SJ-A2
Rated voltage: 12 V/DC, 2A
Rated power: 16W
Frequency: 45kHz
Material of tank: SUS304
Tank size :180 x 70 x 45mm (Length x Width x Height)
Capacity: 500 ml
G.W. : 611 g
Product size: 208 x 108 x 72mm (Length x Width x Height)
Delivery contents: ultrasonic cleaner, power adapter, wash bracket x 1, operating manual
*Products such as specifications the appearance and the design are subject to modification
without prior notice.
Operations
1. Open the lid add the clean water put what you need to clean inside the tank ensure the clean
water is no higher than the “MAX”water level mark. Do not operate the unit without water
in the tank.
2. Plug the power adapter DC plug into the DC socket of the Ultrasonic cleaner.
3. Plug the power adapter into the power socket.
4. Short press the “ ”button to switch to the desired time, then short press the “”
button to start the work.
5. If you want to pause the cleaning job, you can short press the “ ” button to pause the
countdown on the display, Short press the power button again to continue working
6. If you want to re-select the time then should pause it firstly (short press button), then
press the“ ”to select the time.
7. When the cleaning work is finished, please unplug the power. Open the lid take cleaned items
from the tank then pour out dirty water, clean and wipe the tank.
Note: Pour water from the side

Daily Maintenance
1. Pour water into the tank with the measuring cup, half of tank's standard line. After washing
with a soft sponge, rinse with the cleaning water.
2. Be careful not to seep water into the power connection at the bottom of the cleaning tank.
3. After cleaning, please rinse items with clean water once again*Don't seep water into the
power connection when cleaning
4. When the stains are difficult to remove, please wet a clean cloth with water then wipe them.
5. Be careful not to seep water into the switch and power connections.
After wiping, dry the device with a dry cloth.