Wassermann Cemat-NT 4 User manual

Fine Blasting Unit
Cemat-NT 4/3/2
Cemat- NT 2
Cemat- NT 3
Cemat- NT 4
USER MANUAL

Dear customer,
Thank you or choosing a product rom the Wassermann range. Wassermann Dental-
Maschinen incorporates the highest standards o quality and the latest technology.
In order to enjoy maximum per ormance and years o trouble- ree operation, please read
this user manual care ully be ore you connect this device and start work, and operate the
device according to the recommended guidelines. The operation sa ety and the
unctionality o this device can only be guaranteed i you ollow both the general sa ety
guidelines and the applying laws to prevent accidents as well as the precautions given in
this user manual. We are not liable or any damages which occur due to inappropriate
usage or aulty operation o this device.
Make sure that anyone using this device has read and understood this user
manual.
Keep this user manual in a sa e place where it can be re erred 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
Rudor weg 15-17
21031 Hamburg, Germany
Phone : [phone]/ -24 Fax.: [phone]
[email protected]
www.wassermann.hamburg
Erstellt: 14.07.17/ msc Version: 2 Au trag: 190992/038//190990/190989/066//190993/018
.

Contents
1 Features....................................................................................................................................... 4
2 Sa ety Symbols used in this Manual.............................................................................................4
3 Sa ety Guidelines.........................................................................................................................5
4 Responsibility or Operation or Damage.......................................................................................5
5 Application....................................................................................................................................6
6 Be ore Starting............................................................................................................................. 6
6.1 Transport............................................................................................................................................... 6
6.2 Storage.................................................................................................................................................. 6
6.3 Installation............................................................................................................................................. 7
7 Installation/ Start-up.....................................................................................................................7
8 Operation..................................................................................................................................... 8
8.1 General Operating Instructions.............................................................................................................. 8
8.2 Filling with Abrasive............................................................................................................................... 8
8.3 Abrading................................................................................................................................................ 9
8.4 Regulating the Abrasive........................................................................................................................ 9
8.5 Cleaning Nozzles................................................................................................................................... 9
9 Troubleshooting.......................................................................................................................... 10
10 Care and Maintenance.............................................................................................................11
10.1 Cleaning............................................................................................................................................ 11
10.2 Maintenance/ Replacing worn Components......................................................................................12
10.2.1 Sleeves...................................................................................................................................... 12
10.2.2 Specially Coated Protection Shield............................................................................................12
10.2.3 Hoses......................................................................................................................................... 12
10.2.4 Pencils........................................................................................................................................ 13
10.2.5 Lamp.......................................................................................................................................... 13
10.2.6 Nozzles...................................................................................................................................... 14
10.2.7 Pressure Regulator.................................................................................................................... 14
10.3 Warranty............................................................................................................................................ 14
10.4 Spare Parts........................................................................................................................................ 15
10.5 Service Hotline [phone]/ -24..................................................................................... 15
10.6 Scope o Delivery/ Accessories......................................................................................................... 15
10.7 Repairs.............................................................................................................................................. 15
11 Technical Data.........................................................................................................................16
12 Disposing o the Unit................................................................................................................16
12.1 In ormation on Disposal or Countries within the EU.........................................................................16
13 EU Declaration o Con ormity...................................................................................................17

1 Features
■ precision long-li e ine blasting units or blasting, roughening and polishing
■ multi unctional ine blasting appliances with 2 to 4 chambers
■ even, pulse- ree blast rom 1–6 bar, low consumption
■ individual, pneumatic blasting control by means o key contacts directly on the stylus
■ permanent pressure system against pollution and dampness in the blasting medium
■ problem- ree change o blasting medium or all usual blasting media sizes possible over
all chambers without use o tools
■ ilter relie sand drawer or the catchment o coarse materials
■ with handy air-expellant jet or simple cleaning
■ specially coated protection shield or optimal visibility
■ practical colour coding system
■ high hygiene standard via changeable sleeves
■ no electronic components, with the exception o lighting
2 Safety Symbols used n th s Manual
Warn ng!
This is a warning o risk situations and dangers.
Failure to observe this warning could be li e-threatening.
These warnings has to be observed.
Informat on!
This symbol draws your attention to speci ic eatures that has to be observed.
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3 Safety Gu del nes
Con iguring and operating this equipment requires precise knowledge and observance
o the instructions in this user manual. The equipment is designed only or its intended
application.
WARNING:
Servicing and repairs should be carried out only by authorised specialists.
Disconnect the power plug be ore starting any maintenance work.
Make sure that the equipment is connected to the correct power source.
Work ng s only allowed w th the blast ng chambers closed.
Please wear safety goggles!
WARNING: Never connect to an oxygen bottle.
R sk of dust explos on.
4 Respons b l ty for Operat on or Damage
The responsibility or operating the device lies exclusively with the owner or user i said
device is incorrectly serviced, maintained or altered by persons not employed by an
authorised dealer or i the device is used in a manner contrary to its speci ied purpose.
The unit has to be maintained and operated in accordance with this user manual.
Wassermann Dental-Maschinen GmbH is not responsible or damage arising rom the
nonobservance o these instructions.
Warranty and responsibility provisions contained in the sales and supply conditions o
Wassermann Dental-Maschinen GmbH are not extended by these instructions.
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5 Appl cat on
The Cemat-NT amily o ine-abrading units have multiple chambers or abrading,
roughening and polishing, and are used to bring a lasting inish to the workpiece.
The latest technology means that system blockages are virtually a thing o the past. The
instruments operate accurately and can prevent clumping o the abrasive. The new
techniques used break up the abrasive continuously. The entire system is under pressure
constantly and is ready or operation immediately. All Cemat-NT units are pneumatically
controlled, thereby avoiding problems with electronics.
Only use the device or this type o application.
6 Before Start ng
6.1 Transport
Be ore transporting the unit, ensure that it has been unplugged rom the power socket.
Make sure that it is packed correctly in order to avoid accidental damage.
Be sure to check or any transport damage when unpacking the goods. Note down
any damage i ound.
6.2 Storage
The unit location is very important when it comes to workplace sa ety, even i it is only to
be set up there or a short period. The room should be dry, well ventilated and vibration-
ree. An even temperature and wooden supports also help. The unit should not be stored
or set up outdoors. I the unit is to be stored or an extended period, protect it rom
moisture and dust.
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6.3 Installat on
Open the box, remove the packing materials, and care ully li t out the device and
accessories. Check the included accessories.
The device has to stand horizontally on a steady and even sur ace.
Install the device in a place where it will not block the working area and the
unctionality (take the dimensions into account).
Do not install the unit outdoors or in places without proper ventilation.
Be ore start-up, be sure the device reaches room temperature.
7 Installat on/ Start-up
Before starting the unit, connect up the ollowing:
•Connect the unit to the compressed-air line.
•The ine blasting unit has to be connected to an external suction unit. The nozzle is
at the lower rear.
•F nally, insert the power plug into the socket, making sure that the mains and the
unit operate on the same voltage.
•Fill the abrasive tanks.
•Flip the (green) rocker switch.
•The unit is ready or use as soon as it reaches operating pressure.
•The abrasion process is blocked until the observation lap is closed.
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8 Operat on
8.1 General Operat ng Instruct ons
All instructions or using the unit, whether in verbal or written orm, are based on our
own experience and experimentation and can only be regarded as guidelines.
All abrasive tanks are colour-coded to match the pencils in the abrasion chamber. Thus, i
you use the blue pencil, it will be ed with abrasive rom the blue tank.
The nstrument w ll operate only w th the observat on flap closed. A safety sw tch
cuts power to the system f the flap s open.
8.2 F ll ng w th Abras ve
The instrument must be switched o be ore you ill it.
The tanks can only be opened a ter the pressure has been released. You do this by
pressing the coloured point in the lid until you no longer hear air coming out. The lid can
then be unscrewed and the container illed with abrasive.
Pay attention o the maximum illing: the receptor nozzle has to be ree o material.
All tanks accept all grain sizes. Make sure that the grain size o the medium being added
matches that o the material already in the tank.
The nozzle and the grain size must also match. You should use a 0.8 mm nozzle when
working with glass beads. A 1.2 mm nozzle is recommended or use with irregular bead
sizes. Be ore replacing the lid, make sure that the thread and sealing sur aces are ree o
abrasive. The instrument is ready or use when all tanks have been sealed.
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8.3 Abrad ng
You hold the pencil in your hand like a stylus. One inger must be placed at the top end o
the lat recess. You then apply light inger pressure to initiate the abrasion process.
8.4 Regulat ng the Abras ve
The pressure regulator at the rear o the instrument is set at the actory to 6 bar. This
setting must not be changed. Adjustment o the abrasive pressure is done only using the
black knobs at the top. You adjust the pressure by pulling the knob out and turning it to the
left (to reduce the pressure) or to the r ght (to ncrease the pressure). You
then push the knob in again. The set pressure can be read on the pressure gauge.
Changing the pressure varies the abrasive eed velocity and the amount o abrasive used.
8.5 Clean ng Nozzles
The instrument is itted with a compressed-air nozzle or cleaning the inner area and the
workpiece. You operate it by lightly bending the ront section o the rubber pencil.
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9 Troubleshoot ng
Fault Cause Solut on
Irregular abrasive low Too little abrasive in tank or
pencil nozzle too small
or abrasive wet
Fill tank
Use larger nozzle
Replace with dry abrasive
No abrasive low Tank empty Fill tank
Nozzle and/or hose blocked Unscrew nozzle rom pencil and
clean (eg, with a needle) and try
process again; abrasive must low.
I necessary, kink hose brie ly to
increase pressure.
Falling pressure, low jet
pressure
Filter blocked and/or seized Contact our Service department
I the above recommendations do not solve the problem, contact your dental depot
or our service department.
Note:
Blockages are mostly the result o impure or clumped abrasive. I the sand is absorbing
moisture, check the water separator and your compressor.
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