REITEL RETOMAT Series User manual

Operating Instructions
LABORATORY EQUIPMENT IN
STAINLESS STEEL
RETOMAT-Series with COMFORT-controller
REITEL Feinwerktechnik GmbH
Senfdamm 20 | 49152 Bad Essen
Phone: [phone] | Fax: [phone]
www.reitel.com | [email protected]

II
Dear Customer!
The laboratory furnaces of the RETOMAT series are especially designed for precious and
non-precious alloys and partial frameworks. The COMFORT-control offers you 10
programming spaces with up to 30 heating ramps and a speed program for speed
investment. Temperature is distributed and stays even in the chamber due to the four-sided
heating element and optimal chamber insulation. Upward opening stainless steel furnace
door.
Any other use or usage beyond this scope is considered unintended use. The manufacturer
shall not be responsible for any damages that may result thereby.
Prior to installation of the device operating instructions and especially the safety instructions
must be read and followed by all personnel who use this device.
After having unpacked the device, please check carefully whether transportation damages of
any kind have occurred. If that is the case, the carrier or manufacturer must be notified within
3 days. The company will not be responsible for any damages found after that.
These operating instructions must be read and followed by all personnel who use this device.
To ensure quick access we recommend to keep it at a safe place near the device. This
documentation is protected by copyright. Transmittal or reproduction of this document in
whole or in part and disclosure of its contents is not permitted. If the operation manual gets
lost an extra copy can be ordered from the manufacturer.
.

III
INDEX
TECHNICAL DESCRIPTION......................................................................................... 4
BASIC EQUIPMENT....................................................................................................... 4
SPECIAL ACCESSORIES................................................................................................ 4
OPERATING ELEMENTS................................................................................................ 4
TECHNICAL DATA......................................................................................................... 5
SAFETY NOTES........................................................................................................... 6
GENERAL SAFETY NOTES ............................................................................................ 6
SPECIFIC SAFETY INSTRUCTIONS ................................................................................. 7
INSTALLATION............................................................................................................ 8
INSTALLATION.............................................................................................................. 8
USE OF A STEAM VENTILATOR OR CATALYST.................................................................. 8
CONTROL PANEL AND BASIC SETTINGS................................................................. 9
CONTROL PANEL ......................................................................................................... 9
SET TIME AND DATE....................................................................................................10
CHANGE START TIME ..................................................................................................10
PROGRAMMING AND OPERATION...........................................................................11
PROGRAM FOR SPEED INVESTMENT MATERIALS............................................................11
PROGRAMMING HEATING RAMPS..................................................................................12
CONTINUOUS HEATING AFTER PROGRAM COMPLETION..................................................13
TROUBLESHOOTING .................................................................................................14
MAINTENANCE...........................................................................................................14
WARRANTY.................................................................................................................15
DISPOSAL REGULATIONS ........................................................................................18
SPARE PARTS LIST ...................................................................................................18
EU DIRECTIVE ............................................................................................................19

4
Technical Description
Basic Equipment
•RETOMAT laboratory furnace with COMFORT-controller
Special Accessories
•Order-No.: 27301000 Catalyst
•Order-No.: 27302000 Steam ventilator
•Order-No.: 27303000 Casting ring drawer
Operating Elements
1 Power switch
2 Oven door
3 Handle (furnace door)
4 Control panel (COMFORT control)
5 Rubber feet
6 Socket (for optional steam ventilator or catalyst)
7 Circuit breaker
8 Cable entry with mains plug
9 Opening for exhaust air connection
10 Temperature sensor, type K
11 Ceramic insert plate (depending on the device)
Fig.: device view
2
4
3
1
5

5
Technical data
RETOMAT MINI
RETOMAT
RETOMAT MG
Line voltage
230 V/50-60 Hz
Current consumption
2.500 W
2.600 W
3.000 W
W x H x D in cm
39 x 53/61 x 45
42 x 55/66 x 43
45 x 57/71 x 52
Heating room
W x H x D in cm
16,5 x 11,5 x 15
20,5 x 13 x 19
23,5 x 15,5 x 25
Volume
3,2 l
5,2 l
9,2 l
Number of casting
rings (example)
4x size 3
4x size 6
4x size 9
Weight
32 kg
43 kg
48 kg
Heating ramps
Max. 30
Memory slots
10
Heating
4 sided
Programming
electronic, individual
Sound level
≤ 70 dB(A)
Housing
Stainless steel
Made in Germany (Subject to modifications)
10
11
6
7
8
9
9
Fig.: rear side
Fig.: furnace chamber
11

6
Safety Notes
General Safety Notes
•All equipment undergoes final inspection and testing before leaving our factory. However,
if equipment is damaged during shipping or through any other circumstances, it must not
be used in service. Please check the device regularly for damages. Damaged parts
should be replaced immediately.
•All power/air/water/gas sources should be rated for the demands of the device as listed in
the technical data sheets. Maximum ratings must not be exceeded. All VDE (Verein
Deutscher Elektro-Ingenieure) standards should be followed. Equipment should be
grounded according to standards.
•Adherence to valid regulations regarding necessary checks (e.g. according to Accident
Prevention & Insurance or electrical equipment) is exclusively taken over by the
buyer/user of this product.
•This device has been designated to be used only for its intended purpose. All other
applications must be prohibited for safety reasons as otherwise the manufacturer’s
warranty expires.
•The device should be set-up in a clean, well-ventilated room, if necessary under a hood.
•Supporting surfaces should be straight, flat and adequately stable.
•Don’t place anything on top of the machine.
•To avoid injury, appropriate protection should be worn (e.g. gloves, safety glasses, safety
shoes, hearing protection etc.)
•If the machine is defective or working improperly it must be taken out of service. In case
of further use of the machine the owner will be held responsible for any consequential
damage.
•To prevent accidents from water, fire or explosion, all power/air/water/gas sources should
be turned off after working hours and during breaks, and secured against unauthorized
access.
•When carrying out maintenance works or repairs or when opening the device always turn
off the main power switch and unplug the whole unit.
•Repairs should be carried out only by the manufacturer or by qualified and certified
personnel appointed according to chapter 7 –warranty.
•In case of leaking water out of housing or tank shut down device and call service.
•Check all hose joints for tightness, if necessary fasten clamps.

7
Specific Safety Instructions
•The RETOMAT furnace may only be operated by trained personnel:
−in dental laboratories for burning out of casting rings and other thermal processing;
−in toolmaking facilities for the thermal treatment of steel;
−in industry;
−in goldsmiths;
−in research laboratories.
•Radiant heat to other objects or persons should not exceed 50 ° C. If necessary, use
insulation panels. When using the optional drawer, place the casting rings on the fireproof
plate.
•The RETOMAT series is not intended for use with flammable, explosive and chemically
aggressive substances without special protective or auxiliary equipment.
•Do not use substances / liquids with harmful vapor formation. Use melting substances
with protective vessel.
•Dont’t store any flammable or explosive within the reach of the RETOMAT furnace.
•If the furnace is placed in a closed digestive room, adequate ventilation shall be provided.
Please pay attention to appropriate air extraction options (for example through a fume
hood).
•A space of at least 1 m must be kept in front of the furnace.
Note:
When inserting the workpieces into the heating chamber, make sure that the temperature
sensor, which is located in the upper right corner, is not damaged. The casting rings must
be positioned at a sufficient distance from the chamber and from the exhaust opening to
prevent damage to the furnace. In the event of a power failure during operation, the
heating process is interrupted and will not continue. When opening the furnace door, the
heating process is also interrupted. It continues after closing the furnace door.
A ceramic insert plate is recommended to extend durability of the furnace. Overfilling the
chamber might cause cracks.
The furnace is not suitable for permanent use at high temperature range.
Never use the device for sintering materials such as Zirconium dioxide or similar
Always check connection ratings. The furnace must be connected to a separate fused
power connection based on indicated power rating.
The furnace does not need to be burned out before the first use.

8
Installation
The electric equipment is being delivered fully installed. The sealed plug can be connected
directly to the mains supply 230 V/16 A. For installation please refer to chapter 2.
Installation
1. Place the RETOMAT on a stable fireproof workstation of suitable height and on a
horizontal surface (minimum width 450 mm). Please also provide a refractory base to put
down casting rings - you can also use the casting ring drawer.
2. The exhaust pipe must always be led out of the building.
3. A minimum distance of 50 mm must be maintained on all sides of the RETOMAT due to
the lateral cooling openings in order to allow air circulation.
4. Do not place other devices or products on the RETOMAT to prevent local heat
accumulation.
Use of a steam ventilator or catalyst
Screw the exhaust unit with the tube connection to the rear of the unit.
Insert the appliance plug into the socket (6) of the furnace (rear).
Please take care to keep the tube length short. If the desired extraction effect is not
achived, it may be necessary to install additional fans in a longer tube construction. The
user assumes full responsibility for it.
Never place the catalyst or the steam ventilator free standing in the room, but always with
a ventilation duct out of the building. Ask for advice from your installer.
Note :
Note that the ceramic filter might clog with excessive soot (depending on the material
used). To clean, loosen the screw laterally at the chamber and lift the filter element
upwards. The cat insert can be fired for one hour in the preheating furnace at 700 ° C.
After cooling, this must be used again as described above.

9
Control panel and basic settings
Control panel
After switching on the main switch (1), a self-test is performed . The version number appears
on the lower display (as shown in the illustration on the control panel).
upper display
lower display
program button Start / stop button
(Alarm off)
Fig.: control panel
After self-test performance, the upper display shows the current time and the day of the
week. The lower display shows the current temperature (Fig. Start field). The controller can
now be programmed.
Fig.: Start field / control panel
Use the P-button to call up the desired program. If the parameters are known and all settings
are correct, the program can be started with the Start / Stop button.

10
Set time and date
Press P and keep it pressed for a few
seconds.
After displaying "Config", the upper display
shows S91, the lower display shows the
time.
Adjust the time with the + and - buttons. If
you keep the button pressed for a longer
time, the setting will run faster.
Press the right button , this will take you
to S92 to set the date. Use + and - to
continue setting the day (S92), month (S93)
and year (S94) with the right button.
Save and complete the setting by pressing
and holding the program key "P".
S93
S94
Change start time
Use the left button to go back to the
displayed time. Set the desired start time
with the + and - buttons. If the desired start
time is later than the current time, then the
program starts today. If the start time is set
before the current time, then the program
starts on the following day.
If the time has been set, you can continue
with the menu by using the right arrow key.

11
Programming and operation
Program for speed investment materials
After switching on and self-test performance, the current time is shown in the display.
Use P to select the program slot and start programming with the right arrow button.
In the upper display, 01 stands for the first
ramp in the program slot. Now you can
increase the heating rate of the furnace in
°C / min. with the + button. The heating
curve in the display above (up, down, hold)
indicates the direction.
If the maximum limit of 15 °C is reached,
the text "SKIP" for immediate heat up at
maximum speed (15 °C / min.) appears
after a further push of the + button.
Use the arrow key on the right to get to
the next menu item for setting the setpoint
temperature using the + and - keys. If you
keep the + or - buttons pressed for a longer
time, the setting will run faster.
Use the arrow key on the right to continue.
The programming of the program is
completed.
Start the heating program with the Start /
Stop button. It lights green when pressed.
The display stops and the furnace starts at
the programmed time

12
Programming heating ramps
After switching on and self-test performance, the current time is shown in the display.
Use P to select the program slot and start programming with the right arrow key.
In the upper display, 01 stands for the first
ramp in the program slot. Now you can set
the heating rate of the furnace in °C / min.
Adjust with the + or - button
(maximum setting 15 °C / min).
With the right arrow key you get to the
the setpoint temperature, adjustable with
the keys + and -. If you keep the + or -
buttons pressed for a longer time, the
setting will start up faster.
Use the arrow key on the right to
continue. The setting for the "hold time" of
ramp 1 appears. You can use + or - to
enter the time in hours (before the point)
and minutes (after the point). If you keep
the + or - buttons pressed for a longer time,
the setting will run faster.
Use the right arrow key to access
ramp 2. Analogously to setting ramp 1, use
+ and - to set the heating rate / minute, the
ramp end temperature and the hold time
one after the other and confirm with

13
At the end of the ramp setting, terminate
programming with the arrow key "minus"
until "End" appears. Another touch of the
button on the right confirms the
programming.
The program is started with the Start / Stop
button, which then lights up green. After the
warm-up time has elapsed, the alarm
sounds, which is acknowledged with the
Start / Stop key (press once)
Continuous heating after program completion
To ensure continued operation of the
furnace, press and hold the + button on the
last ramp until the maximum limit of 99
hours and 59 minutes is reached. Further
pressing the + key sets the "hold" function.
The furnace continues to heat after
reaching the final temperature. Use the
right arrow key to acknowledge your
program.

14
Troubleshooting
Device doesn’t work after turning it on.
a. Check the building’s fuse
b. Check the device’s fuse.
Moisture in the chamber or fuse release.
For wet conditions, burnout at 200 ° C for
24 hours is recommended. Alternatively, we
recommend a fuse for the RETOMAT with
separate FI / LS combination (500mA, 16A)
in the distribution.
Device does not heat.
Door closed and door contact audibly
switched? Please open and close the door
again. Contact Service if error is not
recoverable.
Gases are insufficiently led out of the room.
Use exhaust fan or catalyst. If in use, pay
attention to the short pipe connection length
and if necessary have additional fans
provided by the building fitter.
Alarm sounds and can not be switched off
Press start / stop once. Press again to quit
the program.
Error code EB2: Short-term power failure
during the program phase
a. Acknowledge with Start button
b. Burning process continues
Error code EA3: too high deviation from set
temperature (overtemperature)
a. Allow the device to cool down and
restart the program as soon as the
temperature is below the desired level
b. In case of repeated occurrence, contact
service
Error code EA4: Heating power is not given
a. Check if there are too many consumers
on the grid.
b. Contact service.
Other disorders.
Contact service.
Maintenance
•Regularly check the device for visible damage to the casing or power cord.
•Clean the housing at regular intervals with a damp cloth or with the REITEL spray.
Note
Clean and maintain your device at regular intervals with the REITEL spray (Order No.:
90405000) against contamination and corrosion. It is water repellent and creates a
protective film against lime, gypsum and dust.

15
Warranty
We, REITEL Feinwerktechnik GmbH, offer a 1 year’s warranty beginning from the proven
date of purchase. This warranty covers all defects traceable to materials, design or
workmanship. The following warranty regulations are applicable:
Within the warranty period Reitel Feinwerktechnik GmbH or an authorized distributor agrees
at its sole option, to perform repair or replace this product at no charge covering all defects
traceable to materials, design or workmanship. Warranty only applies to appropriate use and
regular maintenance of this product according to the operating instructions. Claims under
warranty are restricted to complementary performance. Additional claims, especially claims
for indemnifications, are not covered by this warranty.
1.
Warranty claims have to be addressed to the distributor the product was purchased from or
directly to our service department.
Contact:
REITEL Feinwerktechnik GmbH
Senfdamm 20
49152 Bad Essen
Germany
Phone: [phone] (Service Department)
Phone: [phone] (Reception)
Fax-No: [phone]
2.
In case of warranty claim application the sales receipt or your purchase invoice showing the
date of purchase of the product and the serial number must be furnished. Securely pack and
ship the device, freight charges prepaid, at your own risk to us, along with a report describing
the defect. We reserve the right to decline warranty if this information has been removed or
modified after purchase of the product or if they are not included in case of warranty claims.
3.
Warranty repairs have to performed by REITEL Feinwerktechnik GmbH or by authorised
distributors. Repairs performed by non-authorised companies will void the claim for refund
since damages to the product resulting hereof are not covered by warranty.

16
4.
If the unit sent in for repair or replacement is still under the original warranty then warranty is
to the end of the original 1 year warranty.
5.
If the unit is destined to be operated in another country than originally intended and
manfactured for, modifications to the product might be necessary to comply to special
technical and /or safety standards of that specific country. Such modifications are no defects
traceable to materials, design or workmanship. and are therefore expressly excluded from
warranty claims.
Modification costs or damages arising from operation of the product under deviating
conditions are not covered by warranty.
6.
Exclusions from warranty:
−Service and maintenance work as well as repair and replacement of consumables
according to our consumables‘ list
−Transportation cost of the machine or installation and dismounting expenses incurred
−Damages due to use of the product other than for its intended purpose
−Damages due to faulty installation or insufficient maintenance of the product (e.g.
decalcification)
−Damages due to natural disaster e.g. lightning, water, fire, act of nature beyond
control, war, inadequate line voltage, insufficient ventilation, no decalcification,
insufficient care and cleaning or non-adherence to operation and maintenance
instructions according to the accompanying operation guide.
−Damage due to use of the product other than in accordance with the instructions
provided by REITEL Feinwerktechnik GmbH;
−The warranty does not cover the cost of removal and replacement of parts and
accessories, unless supplied as original equipment by REITEL Feinwerktechnik
GmbH
−All kind of damages occurred not directly at the device as well as consequential
damages (e.g. damages to furniture due to a lack of water, downtime of the machine,
material, lost working hours, wages and other consequential damages).
This warranty shall be rendered null and void if:
−the product has been subject to any modification, repair or replacement other than as
authorised by REITEL Feinwerktechnik GmbH

17
−the product is continued to be operated despite a functional defect
7.
The warranty is device specific and may be claimed, within the warranty period, by any
person who has legally acquired the device.
8.
Consumables are excluded from warranty. Spare parts are subject to a warranty coverage of
6 months against all defects traceable to materials, design or workmanship according to
these warranty regulations.
9.
Legal default claims on the part of the purchaser remain unaffected by this warranty.
10.
We reserve the right to charge a fee if repair of the device is rejected and the device is
destined to be sent back unrepaired.
11.
Please note:
Upon repair or replacement of this unit, personal data and settings might get lost or
damaged. We don’t accept liability for all kind of data loss. The customer is advised to
backup essential programs and data before sending for service.
12.
This warranty shall be interpreted in accordance with German law to the exclusion of UN
sales law. Place of jurisdiction is our business location.
13.
If any provisions of this warranty are judged to be illegal or unenforceable, the continuation in
full force and effect of the remaining provisions will not be prejudiced. The provisions of this
warranty judged to be illegal or unenforceable shall be construed so as to give effect to the
intent manifested by the provision held invalid, illegal or unenforceable and to give effect to
section 13 hereof.
14.
Should you need to borrow a device while your device is being repaired, please contact
Messrs. REITEL or your distributor. These loans are a service for which availability cannot
necessarily be guaranteed. After the warranty period, a free may be charged for loan
equipment as well as for shipping and packaging.

18
Disposal Regulations
According to valid laws our devices are properly disposed of according to B2B –
Regulations for proper disposal. Pls. contact your local dealer for additional
information.
Spare Parts List
Best.-Nr.
Ref.:
Retomat mini, Retomat, Retomat MG
Ersatzteilliste / Spare parts list 03/2019
St.
Qty
ME
Unit
E8101500
Feder
Spring
1
Stck
piece
E8101300
Holzgriff
Wooden handle
1
Stck
piece
E5010600
Katalysator ( Keramik ) für 73.1
Catalyst (ceramics) for 73.1
1
Stck
piece
E7814200
Keramik Einlegeplatte 067 (Retomat Mini) 130 x 135 mm
Ceramic inlay 067 (Ret. Mini) 130 x 135 mm
1
Stck
piece
E7814300
Keramik Einlegeplatte 073 (Retomat) 190 x 195 mm
Ceramic inlay 073 (Retomat) 190 x 195 mm
1
Stck
piece
E7814400
Keramik Einlegeplatte 074 (Retomat MG) 208 x 218 mm
Ceramic inlay 074 (Retomat MG) 208 x 218 mm
1
Stck
piece
E8101800
Keramikrohr
Ceramic tube
1
Stck
piece
E6094010
Mikroschalter - Doppelkontakt (für Mini/Retomat/MG)
Micro switch - double contact
1
Stck
piece
E6064800
Schalter grün beleuchtet
Green illuminated switch
1
Stck
piece
E6221210
Sicherung, superflink, KLK- 15A
Super quick fuse, KLK-15A
1
Stck
piece
27304000
Temperaturfühler
Temperatur control
1
Stck
piece
E8102300
Türschalter komplett
Door switch, cpl.
1
Stck
piece
Notes:
The thermocouple is excluded from the warranty. For insurance reasons we recommend to
change this every six months.
Please do not overfill the chamber as damage resulting from cracking or overheating will
not be covered by the warranty. The use of ceramic sintering in this oven will void the
warranty.

19
EU DIRECTIVE

We manufacture in compliance with Quality Management ISO 13485:2016 incorporating
established standards.
REITEL Feinwerktechnik GmbH
Senfdamm 20 | 49152 Bad Essen
Phone: [phone] | Fax: [phone]
www.reitel.com | [email protected]
122021