Wassermann DSW-2 User manual

Dosing Scales
DSW-2 and DSW-2/4K
USER MANUAL
Dosing Scale DSW-2/4K

Dear customer,
Thank you for choosing a product from the Wassermann range. Wassermann Dental-
Maschinen incorporates the highest standards of quality and the latest technology.
In order to enjoy maximum performance and years of trouble-free operation, please read
this user manual carefully before you connect this device and start work, and operate the
device according to the recommended guidelines. The operation safety and the
functionality of this device can only be guaranteed if you follow both the general safety
guidelines and the applying laws to prevent accidents as well as the precautions given in
this user manual. We are not liable for any damages which occur due to inappropriate
usage or faulty operation of this device.
Make sure that anyone using this device has read and understood this user
manual.
Keep this user manual in a safe place where it can be referred to as required at
any time.
The unit complies with the relevant EU guidelines.
The unit is subject to the EU guidelines 2012/19/EU (WEEE Directive).
Company address:
Wassermann Dental-Maschinen GmbH
Rudorffweg 15-17
21031 Hamburg, Germany
Phone : [phone]/ -24 Fax.: [phone]
[email protected]
www.wassermann.hamburg
www.facebook.com/WassermannDentalmaschinen
Erstellt: 28.02.20/ msc Version: 1 Auftrag: : 172988/009 / 172985 // 172989/012 / 172986
.

Contents
1 Features..........................................................................................................................5
1.1 Product Description...................................................................................................5
1.2 Product Design.........................................................................................................6
1.3 Mathematical Basis for Control and Programming....................................................6
2 Safety Symbols used in this Manual................................................................................6
3 Safety Guidelines............................................................................................................7
4 Responsibility for Operation or Damage..........................................................................8
5 Application.......................................................................................................................8
6 Before Starting................................................................................................................8
6.1 Transport..................................................................................................................8
6.2 Installation.................................................................................................................9
6.3 Storage.....................................................................................................................9
7 Installation/ Start-up.......................................................................................................10
8 Operation.......................................................................................................................11
8.1 General Operating Instructions...............................................................................11
8.2 Programming..........................................................................................................12
8.2.1 Correcting Incorrect Input.................................................................................13
8.3 Calculating Dosing Quantities per Pump................................................................13
8.3.1 Determining the Density of Concentrates.........................................................13
8.3.2 Example of Calculating Embedding Materials..................................................14
8.4 Rinsing/ Filling/ Emptying........................................................................................17
8.4.1 Filling/ Rinsing/ Emptying the Pump System....................................................17
8.5 Dosing.....................................................................................................................18
8.5.1 Stopping the Dosing Process...........................................................................19
8.6 Using Cooling..........................................................................................................20
8.7 Tips and Tricks........................................................................................................20
9 Troubleshooting.............................................................................................................21
10 Care and Maintenance................................................................................................22
10.1 Cleaning................................................................................................................22
10.2 Maintenance.........................................................................................................23
10.3 Warranty...............................................................................................................23

10.4 Spare Parts...........................................................................................................23
10.5 Service Hotline [phone]/ -24........................................................23
10.6 Scope of Delivery/ Accessories............................................................................24
10.7 Repairs.................................................................................................................24
10.8 Repairing the Pump..............................................................................................24
11 Technical Data.............................................................................................................26
11.1 Weighing System:.................................................................................................26
11.2 DSW-2/ DSW-2/4 K..............................................................................................26
11.3 Cooling System.....................................................................................................27
12 Disposing of the Unit...................................................................................................27
12.1 Information on Disposal for Countries within the EU.............................................27
13 EU Declaration of Conformity......................................................................................28
14 Short Instruction for Programming...............................................................................29
15 Instruction to Start a Program......................................................................................29
16 Table of Program.........................................................................................................30

1 Features
1.1 Product Description
Electronic scales with control system of 1 to 6 liquid pumps. Depending on whether plaster
or embedding powder is being weighed on the scales, this unit can, at the press of a
button, accurately reproduce up to 30 previously defined quantities. This feature derives
from the fact that up to 6 liquids can be dosed in sequence with a very high level of
accuracy.
The DSW-2/4K dosing center is especially suitable for this purpose.
This patented product also allows you to cool liquids to temperatures recommended by the
embedding-mixture manufacture. The unit delivers the same degree of precision over the
long term, yet pays for itself very quickly.
•precision scales for modern dosing and weighing technologies for mixing all
common plasters and embedding materials
•DSW-2/4 K: comes standard with 4 pumps for cooled liquids, it is possible to add 2
additional pumps (non-cooled)
•DSW-2: comes standard with 1 pump non-cooled, it is possible to add 5 additional
pumps (non-cooled)
•memory for up to 30 mix recipes, many program and expansion configurations
•constant mix ratios of powder and liquids
•precision scales: accuracy +/- 0.5 g, max. load 6 kg
•large, clear LCD display
•extremely durable, easy-clean housing, plastic powder coated
•scales in high-quality stainless steel
5

1.2 Product Design
The DSW-2 dosing scales contains the following components:
•Scales
•Controller
•Dosing housing with 1 to 6 pumps (cooling unit), depending on configuration.
•Rubber plugs to seal hose ends
Pumps 1 to 6 (A to F) are located in a housing and are interchangeable.
1.3 Mathematical Basis for Control and Programming
Dosing control is based on the following formula:
Gges = GY + MX1 * 1 +MX2 * 2 + MX3 * 3 Equation 1
Gges = total quantity [in g] of all weighed amounts of different materials
GY = weight component of, eg, plaster powder or similar material
MX1... MX3 = quantity [in ml/100g] of liquid to be dosed from any selected pump
1 .... 3 = density [in g/cm3 or g/ml] of particular material/liquid
2 Safety Symbols used in this Manual
Warning!
This is a warning of risk situations and dangers.
Failure to observe this warning could be life-threatening. These warnings has to
be observed.
Information!
This symbol draws your attention to specific features that has to be observed.
6

3 Safety Guidelines
Configuring and operating this equipment requires precise knowledge and observance
of the instructions in this user manual. The equipment is designed only for its intended
application.
WARNING:
Servicing and repairs should be carried out only by authorised specialists.
Disconnect the power plug before starting any maintenance work.
Make sure that the equipment is connected to the correct power source.
When dosing, use only liquids recommended for mixing embedding materials
and plasters for dental applications. Do not use petrol, oil or acids, solvents or
flammable substances.
Concentrated embedding materials can damage your health. Read the
manufacturer’s data sheets carefully.
It is not allowed to reduce the hose ends e.g. by sieves, filters, reductions!
The entire hose cross-section always has to be used otherwise the pump may
overheat.
7

4 Responsibility for Operation or Damage
The responsibility for operating the device lies exclusively with the owner or user if said
device is incorrectly serviced, maintained or altered by persons not employed by an
authorised dealer or if the device is used in a manner contrary to its specified purpose.
The unit has to be maintained and operated in accordance with this user manual.
Wassermann Dental-Maschinen GmbH is not responsible for damage arising from the
nonobservance of these instructions.
Warranty and responsibility provisions contained in the sales and supply conditions of
Wassermann Dental-Maschinen GmbH are not extended by these instructions.
5 Application
The DSW-2 dosing scales allow you to mix embedding materials and plasters with
consistent accuracy.
Only use the device for this type of application.
6 Before Starting
6.1 Transport
Before transporting the unit, ensure that it has been unplugged from the power socket.
Make sure that it is packed correctly in order to avoid accidental damage.
Be sure to check for any transport damage when unpacking the goods. Note down
any damage if found.
8

6.2 Installation
Open the box, remove the packing materials, and carefully lift out the device and
accessories. Check the included accessories.
Choose a location for the scales and container where they are protected from direct
sunlight or other sources of warmth such as heaters.
The device has to stand horizontally on a steady and even surface.
Install the device in a place where it will not block the working area and the
functionality (take the dimensions into account). Make sure that there are about
10 cm of free space on each side to guarantee air circulation (heat dissipation).
It is not allowed to reduce the hose ends e.g. by sieves, filters, reductions!
The entire hose cross-section always has to be used otherwise the pump may
overheat.
Do not install the unit outdoors or in places without proper ventilation.
Before start-up, be sure the device reaches room temperature.
The scales has always to be horizontal.
6.3 Storage
The unit location is very important when it comes to workplace safety, even if it is only to
be set up there for a short period. The room should be dry, well ventilated and vibration-
free. An even temperature and wooden supports also help. The unit should not be stored
or set up outdoors. If the unit is to be stored for an extended period, protect it from
moisture and dust.
If the unit is not to be used for an extended period, seal the concentrate hose
ends with the rubber plugs.
9

7 Installation/ Start-up
Make sure that the safety packing has been removed before you start the unit.
•Follow the procedure below to remove the securing piece from the scales
before you start work:
1. Remove the stainless steel pan from the scales.
2. Remove the safety packing between the pan and the housing.
3. Replace the pan.
•Select the appropriate quantities of the individual liquids. If using containers without
a 6.5mm hole, unscrew the cover. Use a tool such as a drill press and a
conventional drill bit to make a 6.5 mm hole in the center of the container lid.
•If the density of the media is known (if not, see 6.3.1), fill the containers with the
relevant liquids, then seal the containers. Mark each container and its lid with the
letter of the dosing pump. The sticker (Fig. 1) on the rear or top of the housing
indicates which hose belongs to which pump.
10
Fig. 1: Pump outlets