Walker Electronics Q105 Service manual

Q105 Ultrasonic Cleaner
Operators Handbook
Q105 Ultrasonic Cleaner
Operators Handbook
IMPORTANT
Please refer to this operator’s
handbook BEFORE operating
the equipment.
your solution in ultrasonics . . .
Full operating instructions in line with HTM01-05
www.walkerelectronics.co.uk
Collingham, Newark, Notts, NG23 7LA
Tel: [phone]
[e-mail]

Page
1
contents...
what is ultrasonic cleaning? 2
before you operate your ultrasonic cleaner & installation 3,4
the mode menu 5
first time use and setting the clock 6
the degas cycle 7
adjusting the power setting 8
loading the basket and cleaning instruments 9
restore factory defaults 10
operating a complete validated cycle 11,12,13
setting up a printer and printing validation reports 14,15
installing the USB driver and PC software 16
transferring information to a PC 17
using a USB memory stick 18
the temperature limit and changing the security code 19,20
the validation report printout explained 21,22
screen and error messages 23,24
basic do’s and don’ts 25,26
cleaning fluids 27,28
maintenance 29
accessories 30
specification 31
guarantee 32
user names and numbers 33
testing the ultrasonic in line with HTM 0105 34
HTM0105 certificate of validation 35,36

Page
2
what is ultrasonic cleaning?...
The audible frequency range of the human ear is from about 16 Hertz (16
Hz) to 16 Kilohertz (16 kHz), Middle C is 216 Hertz, a grasshopper call
around 7 kHz and a bat signal about 70 kHz. Beyond human audible range
is called ‘Ultrasonic’. Most ultrasonic cleaners operate in the range of 30 to
over 70 kHz; ours have an operating frequency of 45 to 55 kHz.
Ultrasonic cleaners function by producing sound waves that are
transmitted into the tank and cleaning solution. These waves create
millions of microscopic bubbles, which collapse or ‘implode’, releasing
large amounts of energy, which scrub the surface clean. This process is
called ‘Cavitation’.
Ultrasonic cleaners have many applications including the cleaning of:
Dental Instruments
Dentures
Endoscopes
Veterinary Instruments
Chiropody Instruments
Clocks and Watches
Jewellery
Printed Circuit Boards ... and many more.
A ‘generator’ located within the ultrasonic cleaner develops the high
frequency power. This supplies the power to the Piezo or ‘transducer’,
which creates the sound waves in the tank. Apart from the strength of the
ultrasonic waves, an equally important part of the cleaning process is the
solution used. An incorrect solution will slow down the cleaning process
and cause poor results.

Page
3
before you operate your ultrasonic cleaner...
To enable you to get the best results, and for your own safety, it is
IMPORTANT to read this handbook.
Please unpack your ultrasonic cleaner carefully and check the contents. The
box should contain:
 1 x Q105 ultrasonic cleaning unit
 1 x stainless steel lid
 1 x stainless steel basket
 1 x 1M IEC mains lead
 Sample cleaning fluid
 1 x Flash drive and adaptor containing at least the following files:
 Ultrasonic cleaner Model Q105 handbook (this handbook)
 Ultrasonic cleaner periodic testing advice
 Product catalogue
If any of the above items are missing please contact Walker Electronics
Limited quoting the serial number, which can be found on page 35 of this
manual.
As stated above, your ultrasonic cleaner is supplied with a 1m lead fitted with
an ASTA approved UK moulded plug. The plug is fitted with a 5 amp fuse
that complies with BS1362. The lead is also fitted with an IEC plug.
If the plug does not fit your sockets please call 01636 892410 and speak to a
member of our staff who will advise you accordingly.
Please read this handbook thoroughly to familiarise yourself with the
controls before operating the equipment.
The unit is supplied with factory set default settings. It is recommended
that these settings are used. Instructions on how to change these settings
are contained within this handbook but this should only be done with
complete knowledge of the product. The factory setting can be restored as
described on page 10 of this handbook.

Page
4
Installation and operation...
The ultrasonic cleaner should be mounted on a level surface. It must not be
exposed to extreme temperatures, moisture, strong vibrations, and dusty or
corrosive environments.
To operate the unit first place the appropriate fluid in the tank. This should
be selected from the list on pages 27 and 28 of this handbook.
Fill the tank to the recommended depth. This is indicated by the ridge or fill
level around the tank.
Plug the unit into a suitable socket and switch on.
After a few seconds the screen will display the serial number and the
firmware version.
Serial number
Firmware version
After 1 second a screen similar to the following is displayed
This is referred to as “The home screen” throughout this manual.
The internal clock time is displayed in the top left-hand corner of the
screen. It is in 24H clock format (hours: minutes: seconds). If this is
incorrect please follow the instructions on page 6 of this handbook.
The current fluid temperature is displayed in the top right-hand corner of
the screen in degrees centigrade.
The current timer setting is displayed in minutes and seconds in the
bottom right hand corner of the screen.

Page
5
the mode menu…
Home
Screen
Log to
USB
Page
4
Pages
14 & 15
Page
18
Print
Logs
Page
15
Page
6
Page
10
Clear
Logs
Set
Clock
Reset
Defaults
Page
7
De-Gas
Time
Page
8
Power
Setting
Pages
19 & 20
Limit
Temp

Page
6
first time use…
Depending on the length of time since the unit was last connected to the
mains, the clock may or may not be correctly set on delivery. On a full
charge the internal battery will power the clock for approximately 3
months.
The clock may also be set by connecting to a PC (See page 16 and 17.)
setting the clock…
Press the key until the following screen is displayed.
To return to the Home Screen press the key
Press the key to move to the next menu item. Press the key to return
to the previous menu item. Press the key and the following screen is
displayed:
Use the and keys to move the cursor between the date, month, year,
hour and minute. The and keys decrease and increase the selected
digit.
Once the date and time are correctly displayed, move the cursor to the X
on the screen and press and release the key. The time starts counting
from the moment the key is pressed.
The date and time are now set.

Page
7
the degas cycle...
Degassing is the process of releasing air that is trapped within fluid in the
tank. Tap water has a small quantity of dissolved air in it, often because it is
passed through fine metal gauze in order to introduce air for aesthetic and
controllability purposes. This dissolved air has a ‘cushioning’ effect on the
ultrasonic waves, which reduces the effectiveness of the ultrasonic cleaner.
The unit will automatically perform a degas cycle after it has been
disconnected from the mains and then re-connected. The factory set
degas cycle is 90 seconds. This can be increased (to a maximum of 300
seconds) or reduced (to a minimum of 0 seconds) should your application
require, however it is suggested that the 90 seconds be the optimum
time for the cycle.
adjusting the degas time...
From the home screen press and release the key until the de-gas screen
is displayed:
Adjust the time by pressing the or keys until the required time is
displayed.
The time may be quickly adjusted to 300 seconds by holding the keys
and pressing and releasing the key. Similarly, the time can be quickly
adjusted to 0 seconds by holding the key and pressing and releasing the
key.
When the required time is displayed, press and release the key to save
the setting and return to the home screen. Press the key to move to the
next section.

Page
8
adjusting the power...
You may wish to change the power setting of the ultrasonic cleaner if you
are cleaning delicate instruments or want to soak some instruments for
longer. You may also want to change the power setting to control the
temperature of the fluid – the lower the power the less the ultrasonic
heating effect.
The power settings are set in 5% increments from a minimum of 5% to a
maximum of 100%.
to adjust the power...
From the home screen press the key until the power setting screen is
displayed:
To decrease the power level setting, press and release the key.
To increase the power level setting, press and release the key.
When the required power level is displayed, press and release the key to
save the setting and return to the home screen or press the key to move
to the next menu item.

Page
9
loading the basket and cleaning instruments...
It is very important that the instruments are cleaned as soon as possible
after contamination. The time from contamination until cleaning/further
processing is called the Decontamination Holding Time (DHT). No matter
what type of contamination is on the instruments, the DHT should always
be kept to a minimum, as dried contamination is harder to remove than
‘fresh’ contamination.
The DHT is particularly important where blood contaminations are present.
‘Fresh’ or ‘wet’ blood is easily removed whereas dried blood is not. This is
firstly because blood contains haemoglobin that becomes insoluble when
dried. Secondly, fibrin, a fibrous protein that is built up during coagulation
is also insoluble. These proteins easily adhere to the surfaces of surgical
instruments making them difficult to remove even with the aid of strong
chemical cleaners.
AS SOON AS POSSIBLE after contamination, instruments should be rinsed in
fresh COLD water to remove visible soiling. Care should be taken to avoid
aerosol production.
The items should then be loaded into the basket, which should be lowered
into the tank. The loaded basket may then remain in the tank for a short
time before being exposed to the ultrasonic cycle. You may wish to leave
the instruments for several minutes if the contamination was dried, or you
could decrease the power and increase the cleaning time. 3 minutes
ultrasonic cleaning at 100% power is the same as 6 minutes ultrasonic
cleaning at 50% power, however the soaking time is doubled allowing any
dried-on contamination to be softened.
Please note:
 Always place the instruments in the basket and NOT on the base of
the tank.
 Ensure that instruments with hinges or joints are fully open.
 DO NOT overload the basket. There should only be one layer of
instruments and NONE of the instruments should be in contact with
each other.

Page
10
restoring the factory default settings…
This option will set the following values to their factory default:
Cycle time : 3 minutes
De-gas time : 90 seconds
Power : 100%
Printer : 19200 baud with handshaking
It will NOT reset the password to the limit temperature setting. If you have
changed and forgotten this setting the unit will have to be returned to
Walker Electronics Limited for re-setting.
From the home screen press the key until the following screen is
displayed:
To return to the Home Screen press the key.
To move to the next menu item, press the key.
Press the key to return to the previous menu item.
Press the key and the following screen will be displayed:
Press the for yes key to reset to the factory defaults. Press the key to
leave the current settings unchanged after the selection the home screen
will be displayed.

Page
11
operating a complete validated cycle...
Please ensure that you have followed the instructions on pages 3 and 4
“before you operate your ultrasonic cleaner and installation” and have read
all of the “do’s and don’ts” on pages 25 and 26.
Place the instruments to be cleaned in the basket provided as described on
page 9.
Remove the lid, lower the basket into the cleaning fluid within the tank and
replace the lid.
Ensure that the home screen is displayed on the screen.
Set the time for the cycle. 3 minutes is the default and is suitable for
cleaning most dental instruments. The cycle length can be decrease or
increased in 30 second divisions by pressing the or keys.
Press and release the key (start/stop).
If the following screen is displayed:
…this indicates that the memory on the unit is full and unable to store any
more information. Pressing the key will continue with the cycle,
however INFORMATION ON THE OLDEST CYCLE WILL BE LOST AND
NOT RETRIEVABLE. Press cancel to end the cycle. You should then either
download the information as described on pages 16 to 19 or print the
information as described on page 14 and 15 of this handbook.
If memory is available the following screen is displayed:

Page
12
The user number can be adjusted by pressing the and keys. If you
are a new user write your name against your user number on page 31 of
this handbook. Should you wish to cancel the cycle press the key.
When the correct user number is displayed press the key (start/stop).
The cycle will then start.
The unit will ‘click’ several times before starting. This is to enable the unit to
start at the next whole second as well as checking that the fluid level is
correct.
If this is the first cycle since the unit was connected to the mains and the
degas cycle time is set above 0 seconds (see page 7), the word ‘Degassing’
will be displayed in the bottom left hand corner of the screen. After the
degassing cycle has completed the unit will start the full cycle.
When the full cycle starts a screen similar to the one below is displayed:
In this example:
150W This means that the unit is drawing 150 Watts. This figure will vary
depending on many things such as the power setting, fluid
temperature, the fluid level, the mains voltage, the basket loading
and even the type of fluid used. This figure however should be in the
range of 140 - 250 watts if the power level is set to 100%. A figure
below 140 watts indicates there may be a problem with the unit.
The fluid in the tank is too hot so this screen will be displayed:
Either replace the fluid or wait for the fluid to cool down.
…

Page
13
51kHz This is the operating frequency of the transducer. In this example it
is 51 kilohertz. This represents a vibration of 51,000 times a second.
20oC This is the current temperature of the solution in the tank. It is
rounded to the nearest degree centigrade. A reading of 20oC means
the temperature is between 19.6oc and 20.5oc (inclusive).
02:26 This means the unit has another 2 minutes and 26 seconds to run
before the current cycle is complete. This will count down until 00:00
when the cycle will be complete and the unit will stop.
When the timer reaches 00:00 the cycle will stop and one of the two
following screens will be displayed:
XXXXXXXXX represents the unique validated cycle number.
If there was a problem with the cycle the following screen is displayed:
Again XXXXXXXXX represents the unique cycle number.
The cycle could have failed for many reasons. A complete list of possible
reasons can be found on page 22 of this handbook.
After a failed cycle the instruments should be removed, rinsed in clean cold
water and the cycle repeated immediately.
Press the key to return to the home screen.

Page
14
setting up the printer...
The unit has an RS232 printer port located on the rear panel. A ‘receipt’
printer may be attached to this so that a validation report can be printed.
The printer is an optional extra which can be purchased from Walker
Electronics limited.
A special lead is supplied with the printer. It is a grey lead, has a large silver
coloured plug on one end and a smaller black rubber plug on the other.
Attach the large silver plug to the socket underneath the printer and the
other end to the RS232 Printer port on the ultrasonic cleaner. Ensure both
plugs are securely screwed in.
Insert the ribbon cartridge and paper as specified in the operators
handbook supplied with the printer. Attach the power lead and turn on
the power.
Always turn off the power to the printer before turning off the power to the
ultrasonic cleaner.
using a different printer...
If you are using a different printer you will need to know the BAUD rate of
your printer. The printer must have a serial port. The ultrasonic cleaner
must be returned to Walker Electronics Ltd together with the baud rate
setting you require for reprogramming. There is an additional charge for
this service.
printing validation reports...
The unit will store up to the last 100 validated cycles. These can be printed
and stored to form part of the HTM01-05 validation process. The records
can also be downloaded and stored electronically. Please refer to pages16,
17 and 18 for how to do this.

Page
15
how to print a validation report...
Set up and attach your printer as described on page 14. From the home
screen press the key once. The following screen is displayed:
‘X’ represents the number of records that are currently stored in the
memory and are available for printing or downloading and will be a
number between 0 and 100. Press and release the or keys to return
to the home screen. Press and release the key to print the records. For
an explanation of the printed receipt refer to pages 21 and 22.
clearing the logs…
The user is prompted to clear the logs after the print has finished. This
option can also be selected from the menu. Printing or downloading the
logs DOES NOT automatically delete them from the unit’s memory.
Press the key to clear all of the stored data or the key to save the
stored data. The display will then return to the home screen.
press the for yes to clear the logs or press the to keep the logs and
return to the home screen.
WARNING. ONCE A LOG IS CLEARED IT IS NOT RECOVERABLE!

Page
16
installing the USB driver and software on a PC...
Go to www.walkerelectronics.co.uk and visit the downloads section. In the
Driver downloads section click on the Q105 driver and program. Download
the program and run it.
Click Next on the ‘Welcome to the UltrasonUSB Setup Wizard’ screen.
Select a folder for installation (it is advised to leave it as the default) and
then click on install for ‘Everyone’ or ‘Just me’. Now on the ‘Confirm
Installation’ page click next.
The software is then installed and an Icon is added to your desktop. Click
Close to close the installer.
connect the tank…
Connect the tank with the waterproof USB lead provided.
When the tank is connected for the first time to a PC via the waterproof
USB cable, it will automatically install all device drivers and files needed.
other features of the UltrasonUSB program...
When the waterproof USB lead is connected to your PC and the ultrasonic
cleaner, you can control all of the features of the ultrasonic cleaner from
the PC just as you can from the tank.
Clicking on the start/stop, Mode, – and + icons on the screen has exactly
the same effect on the ultrasonic as it does pressing the buttons on the
ultrasonic cleaner.
In addition, you can quickly and easily set the date and time stored on the
unit. By pressing the ‘Set time’ icon on the screen the PC’s date and time
are transferred to the unit. Before proceeding with this operation please
ensure that the PC date and time are correct.
The reset default button will automatically restore the cycle time, degas
time, printer baud rate, power setting and maximum temperature control
to the factory default setting.

Page
17
transferring the information from the unit to a
PC...
Double click the UltrasonUSB icon on your desktop to load the program.
A screen similar to the following will be displayed:
To download the information from the ultrasonic unit and save as a text file
on a pc click the ‘Save log’ icon.
Select the location for the file, enter a file name (for example the date in
reverse – ‘190325’ for 25th March 2019) in the file name box and click the
save icon.
The information has now been transferred and saved.
Open the saved file and check that the data has been saved before
pressing the Clear log icon and then Yes to confirm.
Ultrason USB controller

Close
Set time
19.062B106
USB
Firmware
Reset defaults
100
Records
<
>
_
+
Start Stop
Mode
View log Save log Abort Clear log
Serial
Next Svc
10104167
19/03/25

Page
18
log to USB drive…
The unit is capable of transferring the records from its internal memory to a
USB drive/USB stick.
From the home screen press the key twice. The following screen is
displayed:
To return to the Home Screen press the key
Press the key to return to the previous menu item.
Press the key and the following screen is displayed:
When the USB stick is inserted the log is copied to the stick and recorded as
a Text file.
The file name is LOG_YYMMDD_HHMMSS where YY is the year, MM is the
month, DD is the day, HH is the hour, MM is the minutes and SS are the
seconds that the log was created. After the records have been copied the
following screen will be displayed.
Press the key and remove the USB stick, then replace the waterproof
cap.

Page
19
entering and changing the temperature
adjustment security code...
From the home screen press the (mode) key until the temperature limit
screen is displayed:
The current fluid temperature is displayed in the top left-hand corner of the
screen. The current set limit temperature is displayed in the top right-hand
corner of the screen.
Press and then the following screen will then be displayed:
The code is factory set at 1234. To enter the code press the key once, the
key twice, the key 3 times and then press the key four times. Press
the key to confirm you have entered the code. If the code was incorrect
the following screen will be displayed
Press the key to re-enter the code or the key to skip and return to the
home screen.
If the code was correct the following screen will be displayed: press the
key to retry or the key to cancel and return to the home screen.