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.
4

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.
5

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.
6

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.
7

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.
8

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.
9

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.
10

10 Care and Ma ntenance
10.1 Clean ng
Disconnect the power plug be ore starting any maintenance work.
The identi ication plate has always to be kept in easily legible condition and has
not to be removed.
Remove external dirt rom time to time with some orm o cold cleaner.
Use only cold cleaners to avoid damaging the paintwork or removing the lettering.
The equipment should be cleaned at regular intervals to ensure trouble- ree
operation.
It requires only normal cleaning (sponge, damp cloth, mild detergent) and no urther
chemical additives.
The interior o the chamber can easily be cleaned using the compressed-air nozzle.
Fine dust will be removed by the suction system.
Coarse abrasive, which cannot be removed by the suction system, will all through
the grate and into the drawer.
In this way, the suction ilter is not overloaded and the chamber remains ree o
abrasive. The drawer must be removed completely or emptying.
11

10.2 Ma ntenance/ Replac ng worn Components
10.2.1 Sleeves
The sleeves can be replaced by gloves. The procedure is the same:
1. Remove the ring with the spring inside the chamber.
2. Remove the old sleeve. Install the new sleeve on its mount so that it aces the wall.
3. Replace the ring with the lat side acing the wall.
10.2.2 Spec ally Coated Protect on Sh eld
1. Open the lap and undo the three thumbscrews on the disk.
2. Remove the aluminium guides.
3. Tip the disk orward and remove it rom the ront slot. Please take care o the
spacer reels.
4. Replace it with the new disk.
5. Reassemble in reverse order.
10.2.3 Hoses
Before replac ng the hoses, d sconnect the power plug, undo the compressed-a r
l ne and release the pressure n the tanks.
1. Remove the grate rom the chamber, then undo the thumbscrews and remove the
pencil mount.
2. Remove the grate.
3. Rest the instrument on its side so that you can reach under it.
4. Use a no. 17 spanner to undo the black nut so you can unscrew and remove the
black hose rom the tank.
5. To remove the white control hose, grip it by the brass end, depress the brass ring
on the valve and then remove the hose.
6. Pull the silver grip on the thrust valve. Insert your other hand through the access
hole and pull the hose into the central chamber.
12

7. The hose is directed rom the chamber through the port to the thrust valve, and then
guided onto the nipple on the tank (do not forget the nut and the plast c cap).
Be ore tightening the nut, make sure that the woven casing has been pushed fully
over the rubber. Tighten the nut to the stop.
8. Insert the white hose only up to the stop.
9. Set the instrument upright again and re-install the pencil mount and the grate.
10.Make sure that the hoses run under the screen grate.
10.2.4 Penc ls
1. Undo the silver cap on the end o the pencil.
2. Remove the rubber hose and the white control hose.
3. Reassembly: slip the silver cap and the plastic ring onto the new hose. The recess
in the plastic ring must match up with the control hose. Slip the black, nylon-
sheathed rubber hose onto the nipple on the pencil. Then push the white control
hose into the small opening up to the stop. Push the plastic ring irmly onto the
pencil.
4. Slide the woven casing over the rubber and tighten the silver cap.
10.2.5 Lamp
1. Remove the power plug be ore replacing the lamp. The lamp is located top rear in
the abrasion chamber.
2. Undo the knurled screws and then remove the guides and disk.
3. Turn the lamp to the le t and remove rom the socket.
4. When inserting a lamp, make sure you hear it click into place.
5. When inserting the disk, irst locate it behind the lip at the ront and then press it
down into place. Insert the guide with the bend to the back and then tighten the
knurled screws.
13

10.2.6 Nozzles
You has to ensure that the nozzles suit the size o the abrasion media used. Replace
nozzles by unscrewing the current nozzle and screwing on a new one. Important: Be ore
you screw on the new nozzle, use a short burst o compressed air to clear any residual
abrasive rom the hose.
Warn ng! Before you use a 0.4 mm nozzle, you w ll need to change the
receptor nozzle. Please order th s as well to avo d blockages occurr ng.
10.2.7 Pressure Regulator
There is a pressure regulator with integrated water separator at the rear o the instrument.
This ensures that no moisture rom the compressor enters the instrument’s circulation
system. It should be checked rom time to time and emptied when it reaches its maximum
level. To do so, release the grey outlet knob so the water can low down into a container.
10.3 Warranty
The warranty period or our equipment is 12 months. I aults occur within the
warranty period, contact your dental depot or get in touch directly with our service
department.
Your equipment should only be operated in per ect condition. I aults occur which
could harm operators or third parties, the unit should not be used until it has been
ixed.
This warranty does not cover damage caused by improper use, external mechanical
causes, transport damage or inter erence with the unit by unauthorized persons.
14

10.4 Spare Parts
I necessary please contact our service hotline phone.
10.5 Serv ce Hotl ne 0049 (0)40 730 926 -20/ -24
10.6 Scope of Del very/ Accessor es
Included parts Item no.
Compressed air hose, PVC hose Ø 8x6 textile (blue), 2 m 320026
Supply line 592012
Cemat-NT 4 including 4 ine blasting jets
0.6 (yellow), 0.8 (blue), 0.8 (red), 1.2 (green)
190992
Cemat-NT 3 including 3 ine blasting jets
0.6 (blue), 0.8 (red), 1.2 (green)
190990(/190989
115 V)
Cemat-NT 2 including 2 ine blasting jets
0.8 (red), 1.2 (green)
190993
Accessor es Item no.
Automatic stand 190420
Compressed air hose, PVC hose Ø 8x6 textile (blue), per meter 320026
Spare sleeve, per piece 190175
Spare ine blasting jet 0.4 mm 190254
Spare ine blasting jet 0.6 mm 190250
Spare ine blasting jet 0.8 mm 190251
Spare ine blasting jet 1.2 mm 190252
We recommend the use o Wassermann blast ng mater als and our low-pressure
suct on un ts SG-10, SG-1/1 and SG-1/2 D with a long-li e brushless motor and an
extra large micro ine dust ilterbag.
10.7 Repa rs
Servicing or repairs to the unit has only to be carried out by quali ied technicians.
Only original spare parts are to be used. Responsibility or the product is voided
i unauthorised persons alter it or i inappropriate components are installed.
15

11 Techn cal Data
Cemat-NT 4
Cemat-NT 3
Cemat-NT 3 115 V version
Cemat-NT 2
Item no.: 190992
Item no.: 190990*
Item no.: 1 0 8 ***
Item no.: 190993**
Voltage 220–240 V / 50/60
110–120 V / 50/60 Hz***
Power consumption 0.2 A/ 0.4 A ***
Female connector
power consumption max.
8 A
Output 50 W/ 24 W ***
W x H x D 550 x 480 x 610 mm
430 x 480 x 610 mm*/ **
Weight 42.6 kg, 37.7 kg* / ***, 34.0 kg**
Sound level ≤ 70 dB (A)
Tank capacity 800 cm³ = 1.2 kg
Compressed air connection 3-6 bar
Working pressure 1-6 bar
Extractor nozzle 75 mm
The noise level o the unit amounts to ≤ 70 dB (A).
Technical changes reserved.
12 D spos ng of the Un t
The unit has to be disposed by an authorized recycling operation. The selected company
has to be in ormed o all possibly health-hazardous residues in the unit.
12.1 Informat on on D sposal for Countr es w th n the EU
To conserve and protect the environment, prevent environmental pollution and
improve the recycling o raw materials, the European Commission adopted a
directive that requires the manu acturer to accept the return o electrical
and electronic units or proper disposal or recycling.
Within the European Union units with this symbol should not there ore be disposed o
in unsorted domestic waste.
For more in ormation regarding proper disposal please apply at your local authoritie.
16

13 EU Declarat on of Conform ty
in accordance with 2014/35/EU (Low Voltage Directive) and 2014/30/EU (Electromagnetic
Compatibility Directive) and 2006/42/EC (Machinery Directive) and 2011/65/EU (RoHS
Directive)
Manu acturer: W A S S E R M A N N
Dental-Maschinen GmbH
Rudor weg 15-17
21031 Hamburg
Germany
Product description: Fine Blasting Unit
or dental
applications
Model: CEMAT-NT 4
CEMAT-NT 3
CEMAT-NT 3 115 V version
CEMAT-NT 2
Item No. 190992
Item No. 190990
Item No. 190989
Item No. 190993
Applicable
standards:
DIN EN 61010-1
DIN EN 61000-6-3
DIN EN 61000-6-1
DIN 45635-1
DIN EN 60335-1
Hiermit wird bestätigt, dass die oben bezeichnete Maschine den genannten EU-Richtlinien
entspricht. Diese Erklärung wird ungültig, alls die Maschine ohne unsere Zustimmung
verändert wird.
This is to con irm that the above mentioned machine complies with the described EU
guidelines. This declaration becomes invalid i the machine is modi ied without our
approval.
Cette machine est con orme aux normes en vigueur d´Union européenne. Cet avis est
nul et non avenant si cette machine est modi iée sans notre accord.
Esta máquina, anteriormente mencionada, cumple con los limites requeridos por el
reglamento UE. Ahora bien, esta declaración quedará invalidada en caso de realizar
modi icaciones al aparato sin nuestra aprobación.
Hiermee wordt bevestigd dat bovengenoemde machine voldoet aan de voorgeschreven
EU normen. Deze verklaring verliest geldigheid als er zonder onze uitdrukkelijke
toestemming wijzigen aan de machine worden aangebracht.
Place, date: Hamburg, 2017-07-14 Company stamp:
Signature : ________________________
Wil ried Wassermann
(Managing Director)
17

Notes:
18

19