Nabertherm L 1/12HA, L 40/11, L 3/12, L 5/12, L 24/12 Operating Instructions Manual

Operating Instructions

Laboratory Furnaces (Muffle Furnaces)

L .../...
LE .../...
LT .../...
LV .../...
LVT .../...

-SKM -SW -HA

-> 10.2005

Original instructions

www.nabertherm.com

 Made

 in

 Germany

2

Copyright

 Copyright by
Nabertherm GmbH
Bahnhofstrasse 20
28865 Lilienthal
Federal Republic of Germany

Reg: M01.0032 ENGLISCH
Rev: 2014-06

No responsibility is accepted for the correctness of this information. We
reserve the right to make technical alterations.

3

1 Introduction ........................................................................................................................................................... 5

1.1 Product Description ........................................................................................................................................... 6

1.2 Overview of the Complete Furnace ................................................................................................................... 7

1.3 Safeguarding against Dangers Posed by Over-Temperature ............................................................................. 9

1.3.1 Key to the Model Names ............................................................................................................................ 10

1.4 Scope of Delivery ............................................................................................................................................ 11

2 Specifications ....................................................................................................................................................... 12

2.1 Warranty and Liability .................................................................................................................................... 16

3 Safety .................................................................................................................................................................... 17

3.1 Intended Use.................................................................................................................................................... 17

3.2 Requirements for the Furnace Operator .......................................................................................................... 18

3.3 Requirements for the Operating Personnel ...................................................................................................... 19

3.4 Protective Clothing .......................................................................................................................................... 20

3.5 Basic Measures During Normal Operation ..................................................................................................... 20

3.6 Basic Measures in Case of Emergency ........................................................................................................... 21

3.6.1 What to do in an Emergency ....................................................................................................................... 21

3.7 Basic Measures for Servicing and Maintenance.............................................................................................. 22

3.8 Environmental Regulations ............................................................................................................................. 22

3.9 Explanation of the Symbols and Warnings ..................................................................................................... 23

3.10 General Risks with the Furnace ....................................................................................................................... 26

4 Transportation, Installation, and Commissioning ............................................................................................ 27 

4.1 Delivery ........................................................................................................................................................... 27

4.2 Unpacking ....................................................................................................................................................... 29

4.3 Transportation Securing Equipment/Packaging .............................................................................................. 31

4.4 Constructional and Connection Requirements ................................................................................................ 31

4.4.1 Installation (Furnace Location) ................................................................................................................... 31

4.5 Assembly, Installation, and Connection .......................................................................................................... 32

4.6 Assembly of a Vent ......................................................................................................................................... 32

4.6.1 Venting Exhaust Fumes .............................................................................................................................. 34

4.6.2 Connecting the Furnace to the Power Supply ............................................................................................. 35

4.6.3 Insertion of the Base Plate .......................................................................................................................... 37

4.7 Commissioning ............................................................................................................................................... 38

4.8 Recommendations for Heating the Furnace for the First Time ....................................................................... 39

4.9 Loading/Charging ........................................................................................................................................... 39

5 Operation ............................................................................................................................................................. 41

5.1 Operating Controller B 180/P 330 ................................................................................................................... 41

5.2 Operating Controller R 6 ................................................................................................................................. 42

5.3 Over-Temperature Limiter with Manual Reset and Adjustable Cut-Off Temperature ................................... 43

5.4 Air Inflow Lever ............................................................................................................................................. 44

6 Servicing, Cleaning, and Maintenance .............................................................................................................. 45

6.1 Shutting the System Down for Maintenance ................................................................................................... 46

6.2 Regular Maintenance of the Furnace ............................................................................................................... 47

6.3 Operating and Auxiliary Materials .................................................................................................................. 48

6.4 Cleaning Products ........................................................................................................................................... 48

4

7 Malfunctions ........................................................................................................................................................ 49

7.1 Replacing a Fuse ............................................................................................................................................. 50

7.1.1 Fuse Located Outside the Switchgear ......................................................................................................... 50

7.1.2 Fuse Located Inside the Switchgear ............................................................................................................ 51

7.2 Separate the Snap-In Coupling (Plug) from the Furnace Housing .................................................................. 53

8 Spare Parts/Wearing Parts ................................................................................................................................. 54

8.1 Electrical Schematics/Pneumatic Schematics ................................................................................................. 55

9 Nabertherm Service ............................................................................................................................................ 55

10 Shut-Down, Dismantling, and Storage............................................................................................................... 56

10.1 Environmental Regulations ............................................................................................................................. 56

10.2 Transportation/Return Transportation ............................................................................................................. 56

11 Declaration of Conformity .................................................................................................................................. 58

5

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1 Introduction

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Dear Customer,

Thank you for choosing a quality product from Nabertherm GmbH.

You can be proud that you have chosen a furnace which has been especially tailored to suit
your manufacturing and production conditions.

This product is characterized by

 professional workmanship
 high performance due to its high efficiency
 high-quality insulation
 low power consumption
 low noise level
 simple installation
 easy to maintain
 high availability of spare parts

Your Nabertherm Team

Note

These documents are intended only for buyers of our products and may not be copied or
disclosed to third parties without our written consent. (Law governing copyright and
associated protective rights, German Copyright Law from Sept. 9, 1965)

Protective Rights

Nabertherm GmbH owns all rights to drawings, other documents and authorizations, also in
case of applications for protective rights.

Note

All the figures in the instructions have a descriptive character; in other words, they do not
represent the exact details of the furnace.

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Note

The pictures contained in the instruction manual may contain inaccuracies in terms of the
function, design and furnace model.

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6

1.1 Product Description

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These laboratory furnaces are a high-quality product which will give you many years of
reliable service if they are properly cared for and maintained. One basic prerequisite is that
the furnace is used the way it was designed to be used.

During development and production a high priority was placed on safety, functionality and
economy.

Laboratory Furnaces are attractive thanks to their many advantages. These furnaces are

all-rounders for research and laboratory applications. They are made from expertly finished,
high-quality materials and are easy to operate. These furnaces are optimally designed for
incinerating and heat treatment. The very best insulation materials permit energy-saving
operation and fast heating times thanks to low heat storage and thermal conductivity.
Laboratory furnaces attain furnace chamber temperatures of max. 1100 °C (2012 °F), 1200
°C (2192 °F) or 1300 °C (2372 °F).

Other Characteristics of this Product are:

 All the models have a high-quality, multi-layered and energy-saving thermal

insulation

 Double-wall housing means low outer temperatures and solid stability. All furnaces

have housings made of textured stainless steel sheet.

 Good temperature uniformity provided by special air supply and exhaust system for

models LV/LVT .../… and LT …/…HA. For models LV/LVT .../… the system
delivers more than 6 air changes a minute. The incoming air is pre-heated, so that a
good temperature uniformity is ensured.

 There are furnaces with drop-down doors or lift doors
 Ceramic heating plates with integrated heating wire, protected against splattering and

exhaust-air for models L/LT …/… and LV/LVT .../…

 Model L/LT …/…/SW with scale and software (Controltherm MV) for annealing loss

specifications

 All the models are equipped with a controller which provides considerable safety

against operator mistakes. The furnace chamber temperature is measured and
regulated by a long-life thermocouple (NiCr-Ni Tmax < 1100 °C or PtRh-Pt Tmax >
1100 °C).

Additional Equipment

 Vent, vent with fan or catalytic converter.
 Over-temperature limiter with adjustable shut-down temperature for thermal

protective class 2 as specified in EN 60519-2 to protect the furnace and the ware
against overheating.

 Manual or automatic protective gas system Protective gas connection on the back side

of the furnace

 Digital interface RS 422, for example, for process control and documentation

provided by Controltherm MV software package.

 Base plates and catch basins to protect of the furnace and to enable easy charging
 Rectangular container, stackable for charging on several levels

7

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1.2 Overview of the Complete Furnace

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Furnace door

Handle

Furnace chamber

Air for the regulation of fresh air

Display

Controller

Power switch (ON/OFF)

Display

Controller

Power switch (ON/OFF)

Heating (ON/OFF)

Exhaust-air system

8

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Safety control circuit

1.3 Safeguarding against Dangers Posed by Over-Temperature

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Over-temperature limiters with manual reset/with automatic reset to protect against over­temperature in the furnace chamber are available for Nabertherm GmbH furnaces either as
a standard feature (depending on the model series) or as additional equipment (customized
design).

The over-temperature limiter with manual reset/with automatic reset monitors the furnace
chamber temperature. The display shows the most recently set cut-off temperature. If the
furnace chamber temperature rises about the pre-set cut-off temperature the heating is shut
down to protect the furnace, the charge and/or the operating equipment.

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DANGER

• Danger caused by incorrectly entered cut-off
temperature at the over-temperature limiter with
manual reset/over-temperature limiter with automatic
reset.

• Mortal danger

• If, as a result of over-temperature from the charge and/or the

operating equipment, a charge is likely to be damaged at this pre­set cut-off temperature of the over-temperature limiter with
manual reset/over-temperature limiter with automatic reset, or if
the charge itself becomes a source of danger for the furnace or its
surroundings, the cut-off temperature must be reduced at the
over-temperature limiter with manual reset/automatic reset to the
maximum permissible value.

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Read the operating instructions of the over-temperature limiter with manual reset/with
automatic reset before starting the furnace. The safety sticker must be removed from the
over-temperature limiter with manual reset/with automatic reset. Any time a change is
made in the heat treatment program, the maximum permissible cut-off temperature (alarm
trigger temperature) at the over-temperature limiter with manual reset/with automatic reset
must be checked or re-entered.

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We recommend setting the maximum setpoint temperature of the heating program in the
limiter between 5 °C and 30 °C, depending on the physical characteristics of the furnace,
below the trigger temperature of the over-temperature limiter with manual reset/with
automatic reset. This prevents an unwanted triggering of the over-temperature limiter with
manual reset/with automatic reset.

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Description and function, see the
Operating Instructions of the over­temperature limit controller/guard

Fig. 2: Removing the sticker

10

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Pos: 15 /TD/Einleitung/Produktbeschreibung/ Öfen/ Entschlüssellung der Modellbezeichnung Laborofen L- LE-L(T)-L

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2 Specifications



Electrical specifications are on the type plate located on the side of the furnace.

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Muffle Furnace
Model

Drop-Down Door

Tmax
°C

Dimensions
Interior in mm
w d h

Dimensions
Outer in mm
W D H

Volume
in l

Heating
power in
kW*

Weight
kg

Minutes
to
Tmax1

L 3/11 1100 160 140 100 380 370 420 3 1.2 20 60
L 5/11 1100 200 170 130 440 470 520 5 2.4 35 60
L 9/11 1100 230 240 170 480 550 570 9 3.0 45 75
L 15/11 1100 230 340 170 480 650 570 15 3.5 55 90
L 24/11 1100 280 340 250 560 660 650 24 4.5 75 95
L 40/11 1100 320 490 250 600 790 650 40 6.0 95 95

L 1/12 1200 90 115 110 250 265 340 1 1.5 10 25
L 3/12 1200 160 140 100 380 370 420 3 1.2 20 75
L 5/12 1200 200 170 130 440 470 520 5 2.4 35 75
L 9/12 1200 230 240 170 480 550 570 9 3.0 45 90
L 15/12 1200 230 340 170 480 650 570 15 3.5 55 105
L 24/12 1200 280 340 250 560 660 650 24 4.5 75 110
L 40/12 1200 320 490 250 600 790 650 40 6.0 95 110

1

for connection to 230 V 1/N/PE or 400 V 3/N/PE

*Depending on furnace design connected load might be higher

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Muffle Furnace
Model

Lift Door

Tmax
°C

Dimensions
Interior in mm
w d h

Dimensions
Outer in mm
W D H+Ha2

Volume
in l

Heating
power in
kW*

Weight
kg

Minutes
to
Tmax1

LT 3/11 1100 160 140 100 380 370 420+165 3 1.2 20 60
LT 5/11 1100 200 170 130 440 470 520+220 5 2.4 35 60
LT 9/11 1100 230 240 170 480 550 570+290 9 3.0 45 75
LT 15/11 1100 230 340 170 480 650 570+290 15 3.5 55 90
LT 24/11 1100 280 340 250 560 660 650+335 24 4.5 75 95
LT 40/11 1100 320 490 250 600 790 650+335 40 6.0 95 95

LT 3/12 1200 160 140 100 380 370 420+165 3 1.2 20 75
LT 5/12 1200 200 170 130 440 470 520+220 5 2.4 35 75
LT 9/12 1200 230 240 170 480 550 570+290 9 3.0 45 90
LT 15/12 1200 230 340 170 480 650 570+290 15 3.5 55 105
LT 24/12 1200 280 340 250 560 660 650+335 24 4.5 75 110
LT 40/12 1200 320 490 250 600 790 650+335 40 6.0 95 110

1

for connection to 230 V 1/N/PE or 400 V 3/N/PE

2

incl. opened lift door

*Depending on furnace design connected load might be higher

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13

Muffle Furnace
Model

Drop-Down Door

Tmax
°C

Dimensions
Interior in mm
w d h

Dimensions
Outer in mm
W D H

Volume
in l

Heating
power in
kW*

Weight
kg

Minutes
to
Tmax1

L 5/13 1300 200 170 130 440 470 520 5 2.4 45 45
L 9/13 1300 230 240 170 480 550 570 9 3.0 50 50
L 15/13 1300 230 340 170 480 650 570 15 3.5 60 60

1

for connection to 230 V 1/N/PE or 400 V 3/N/PE

*Depending on furnace design connected load might be higher

Pos: 23 /TD/Einleitung/Technische Daten/Öfen/Mode ll Muffelofen Hubtür -Tabelle für LT 5/13 - LT 15/13 @ 14\mod_12949 9104 0209_51.docx @ 111583 @ @ 1

Muffle Furnace
Model

Lift Door

Tmax
°C

Dimensions
Interior in mm
w d h

Dimensions
Outer in mm
W D H+Ha2

Volume
in l

Heating
power in
kW*

Weight
kg

Minutes
to
Tmax1

LT 5/13 1300 200 170 130 440 470 520+220 5 2.4 42 45
LT 9/13 1300 230 240 170 480 550 570+290 9 3.0 60 50
LT 15/13 1300 230 340 170 480 650 570+290 15 3.5 70 60

1

for connection to 230 V 1/N/PE or 400 V 3/N/PE

2

incl. opened lift door

*Depending on furnace design connected load might be higher

Pos: 24 /TD/Einleitung/Technische Daten/Öfen/Mode ll Kompakt-Muffelofen Klapptür -Tabelle für LE 1/11 - LE 14/11 @ 14\mod_1294992044264_51.docx @ 111652 @ @ 1

Compact Muffle Furnace
Model

Drop-Down Door

Tmax
°C

Dimensions
Interior in mm
w d h

Dimensions
Outer in mm
W D H

Volume
in l

Heating
power in
kW*

Weight
kg

Minutes
to
Tmax1

LE 1/11 1100 90 115 110 250 265 340 1 1.5 10 10
LE 2/11 1100 110 180 110 275 380 350 2 1.8 10 25
LE 4/11 1100 170 200 170 335 400 410 4 1.8 15 35
LE 6/11 1100 170 200 170 510 400 320 6 1.8 18 35
LE 14/11 1100 220 300 220 555 500 370 14 2.9 25 40

1

for connection to 230 V 1/N/PE or 400 V 3/N/PE

*Depending on furnace design connected load might be higher

Pos: 25 /TD/Einleitung/Technische Daten/Öfen/Mode ll Veraschungsofen Klapptür -Tabelle für LV 3/11 - LV 15/ 11 @ 14\ mod_1294992766140_51.docx @ 111675 @ @ 1

Incinerator
Model

Drop-Down Door

Tmax
°C

Dimensions
Interior in mm
w d h

Dimensions
Outer in mm
W D Hb2

Volume
in l

Heating
power in
kW*

Weight
kg

Minutes
to
Tmax1

LV 3/11 1100 160 140 100 380 370 750 3 1.2 20 120
LV 5/11 1100 200 170 130 440 470 850 5 2.4 35 120
LV 9/11 1100 230 240 170 480 550 900 9 3.0 45 120
LV 15/11 1100 230 340 170 480 650 900 15 3.5 55 120

1

for connection to 230 V 1/N/PE or 400 V 3/N/PE

2

incl. exhaust air pipe (Ø 80 mm)

*Depending on furnace design connected load might be higher

14

Pos: 26 /TD/Einleitung/Technische Daten/Öfen/Mode ll Veraschungsofen Hubtür -Tabelle für LVT 3/11 - LVT 15/11 @ 14\mod_1 294992895007_51.docx @ 111698 @ @ 1

Incinerator
Model

Lift Door

Tmax
°C

Dimensions
Interior in mm
w d h

Dimensions
Outer in mm
W D Hb2

Volume
in l

Heating
power in
kW*

Weight
kg

Minutes
to
Tmax1

LVT 3/11 1100 160 140 100 380 370 750 3 1.2 20 120
LVT 5/11 1100 200 170 130 440 470 850 5 2.4 35 120
LVT 9/11 1100 230 240 170 480 550 900 9 3.0 45 120
LVT 15/11 1100 230 340 170 480 650 900 15 3.5 55 120

1

for connection to 230 V 1/N/PE or 400 V 3/N/PE

2

incl. exhaust air pipe (Ø 80 mm)

*Depending on furnace design connected load might be higher

Pos: 27 /TD/Einleitung/Technische Daten/Öfen/Mode ll Muffelofen mit Keramikmuffel Klapptür/Hubtür - Tabelle für L 9/11/SKM - LT 9/11/SKM @ 14\mod_1294994910658_51.doc x @ 111721 @ @ 1

Muffle Furnace
Model

Drop-Down
Door/
Lift Door

Tma
x
°C

Dimensions
Interior in mm
w d h

Dimensions
Outer in mm
W D H+Ha2

Volume
in l

Heating
power in
kW*

Weight
kg

Minutes
to
Tmax1

L 9/11/SKM 1100 230 240 170 480 550 570 9 3.0 50 90
LT 9/11/SKM 1100 230 240 170 480 550 570+290 9 3.0 50 90

1

for connection to 230 V 1/N/PE or 400 V 3/N/PE

2

incl. opened lift door

*Depending on furnace design connected load might be higher

Pos: 28 /TD/Einleitung/Technische Daten/Öfen/Mode ll Muffelofen mit Klapptür und Waage -Tabelle für L 9/11/SW - L 9/ 12/SW @ 14\mod_1294995752712_51.docx @ 111744 @ @ 1

Muffle Furnace
Model

Drop-Down
Door

Tmax
°C

Dimensions
Interior in mm
w d h

Dimensions
Outer in mm
W D H

Volume
in l

Heating
power in
kW*

Weight
kg

Minutes
to
Tmax1

L 9/11/SW 1100 230 240 170 480 550 800 9 3.0 55 75
L 9/12/SW 1200 230 240 170 480 550 800 9 3.0 55 90

1

for connection to 230 V 1/N/PE or 400 V 3/N/PE

*Depending on furnace design connected load might be higher

Pos: 29 /TD/Einleitung/Technische Daten/Öfen/Mode ll Muffelofen mit Hubtür und Waage -Tabelle für LT 9/11/SW - LT 9/12/ SW @ 14\mod_1294996314888_51.docx @ 111767 @ @ 1

Muffle Furnace
Model

Drop-Down
Door

Tmax
°C

Dimensions
Interior in mm
w d h

Dimensions
Outer in mm
W D H+Ha2

Volume
in l

Heating
power in
kW*

Weight
kg

Minutes
to
Tmax1

LT 9/11/SW 1100 230 240 170 480 550 800+290 9 3.0 55 75
LT 9/12/SW 1200 230 240 170 480 550 800+290 9 3.0 55 90

1

for connection to 230 V 1/N/PE or 400 V 3/N/PE

2

incl. opened lift door

*Depending on furnace design connected load might be higher

Pos: 30 /TD/Einleitung/Technische Daten/Öfen/Mode ll Waage für Muffelofen L/LT 9/11-12/SW -Tabelle für EW- 2200/4200/6200/12000 @ 14\mod_1294996701851_51.docx @ 111790 @ @ 1

15

Scale
Type Readability

in g

Weight Range

in g

Stamp Weight

in g

Calibration Value

in g

Minimum Load

in g

EW-2200 0.01 2200 incl. plunger 850 0.1 0.5
EW-4200 0.01 4200 incl. plunger 850 0.1 0.5
EW-6200 0.01 6200 incl. plunger 850 - 1.0
EW-12000 0.10 12000 incl. plunger 850 1.0 5.0

Pos: 31 /TD/Einleitung/Technische Daten/Öfen/Mode ll Muffelofen Hubtür -Tabelle für LT 5/11HA - LT 15/11HA @ 14\mod_1294 997879629_51.docx @ 111813 @ @ 1

Muffle Furnace
Model

Lift Door

Tmax
°C

Dimensions
Interior in mm
w d h

Dimensions
Outer in mm
W D H+Ha2

Volume
in l

Heating
power in
kW*

Weight
kg

Minutes
to
Tmax1

LT 5/11HA 1100 200 160 130 440 470 520+220 5 2.4 36 60
LT 9/11HA 1100 230 230 170 480 550 570+290 9 3.0 46 60
LT 15/11HA 1100 230 330 170 480 650 570+290 15 3.5 56 75

1

for connection to 230 V 1/N/PE or 400 V 3/N/PE

2

incl. opened lift door

*Depending on furnace design connected load might be higher

Pos: 32 /TD/Einleitung/Technische Daten/Öfen/Mode ll-Tabelle für Laboröfen L-LE-L(T)-LV(T)-SKM-SW -HA - Grafik - 1 @ 14\mod_1300087573327_51.docx @ 113363 @ @ 1

Fig. 4: Dimensions

Pos: 33 /TD/Einleitung/Technische Daten/Öfen/Tabe lle für Laboröfen L/LT/LE/LV/LVT/ - Öfen - 1 @ 14\mod_12950010508 44_51.docx @ 111836 @ @ 1

Electrical connection

1-phase: (1 N/PE) 3-phase: (3 N/PE)

Model:

to 3.6 kW from 4.5 kW

Power plug

Protective contact plug

(with snap-in socket)

CEE plug

Voltage:

110 V – 240 V
220 V – 240 V

380 V – 480 V

Frequency: 50 or 60 Hz

Heating output in kW: see section "Specifications" or type plate on the

furnace

w

d

D

h

Hb

H

Ha

W

H

16

Thermal protection class

Furnaces:

as specified in DIN EN 60519-2

without safety controller Class 0

Protective type

Furnaces: IP20

Ambient conditions for electrical
equipment

Temperature: Humidity: +5 °C to + 40 °C max. 80 % not

condensing

Pos: 34 /TD/Einleitung/Technische Daten/Öfen/Tabe lle Dauerschalldruckpegel < 80 dB(A) - 2 @ 1\mod_1170750985488_ 51.docx @ 8913 @ @ 1

Emissions

Continuous sound pressure
level:

< 80 dB(A)

Pos: 35 /TD/Einleitung/Gewährleistung_Haftung/ Überschrift - Gewährleistung und Haftung 1.1 @ 0\mod_116782 2979492_51.docx @ 5130 @ 2 @ 1

2.1 Warranty and Liability

Pos: 36 /TD/Einleitung/Gewährleistung_Haftung/ Öfe n und Schaltanlagen - Gewährleistung und Haftung @ 0\mod_1157 536440972_51.docx @ 1569 @ @ 1

§

As regards warranty and liability, the normal Nabertherm warranty terms apply,
unless individual terms and conditions have been agreed. However, the following
conditions also apply:

Warranty and liability claims for personal injury or damage to property shall be excluded if
they are attributable to one or more of the following causes:

 Everyone involved in operation, installation, maintenance, or repair of the furnace

must have read and understood the operating instructions. No liability will be accepted
for damage or disruptions to operation resulting from non-compliance with the
operating instructions.

 Not using the furnace as intended,

 Improper installation, start-up, operation, or maintenance of the furnace,

 Operation of the furnace with defective safety equipment or improperly installed or

non-functioning safety and protective equipment,

 Not observing the references in the operating instructions to transportation, storage,

installation, start-up, operation, maintenance, or equipping the furnace,

 Making unauthorized changes to the furnace,

 Making unauthorized changes to the operating parameters,

 Making unauthorized changes to the parameterization, the settings, or the program,

 Original parts and accessories are designed especially for Nabertherm furnaces.

Replace parts only with original Nabertherm parts. Otherwise the warranty will be
void. Nabertherm accepts absolutely no liability for damage caused by using parts that
are not original Nabertherm parts.

 Catastrophes due to third-party causes and force majeure.

17

Pos: 37 /TD/Sicherheit/Überschrift - Sicherhei t @ 0\mod_1158843961540_51.docx @ 3103 @ 1 @ 1

3 Safety

Pos: 38 /TD/Sicherheit/Überschrift - Bestimmungsge mäße Verwendung @ 0\mod_1167823503921_51.docx @ 5148 @ 2 @ 1

3.1 Intended Use

Pos: 39 /TD/Sicherheit/Bestimmungsgemäße Verwendung L HT-Hochtemperaturöfen (Tischmodell) @ 2\mod_1182347443 948_51.docx @ 18724 @ @ 1
Safety

This Nabertherm system was designed and manufactured after careful selection of the
harmonized standards to be observed as well as other technical specifications. It therefore
corresponds to the state of the art, ensuring the highest possible degree of safety.

Only materials with known characteristics and melting temperatures may be used. Check
the material safety data sheets if necessary.

Use of the furnace for any other purpose whatsoever such as processing

products other than those intended or handling hazardous substances or

substances posing a health hazard constitutes improper use and must be

agreed upon with Nabertherm in writing.

Whether or not the materials used in the furnace can potentially corrode or destroy

the insulation or heating elements must be ascertained.

For furnaces with over-temperature limiters, the cutoff temperature must be set to prevent
overheating of the material.

Modifications to system equipment must be agreed upon with

Nabertherm in writing. It is not permitted to remove, bypass, or shut down safety devices.

The installation instructions and safety guidelines must be observed. Otherwise, the furnace

will not be considered as being used as designated, and all claims against Nabertherm
GmbH will be void.

Opening the furnace when hot (temperature greater than 200/392 °C/°F) can lead to
accelerated wear of the following components: insulation, heating elements, and furnace
housing.

Operating with power sources, products, operating equipment, additives,

etc. that are subject to the Ordinance on Hazardous Substances or cause

risks to the health of operating personnel in any way is not permitted.

- This furnace is designed for commercial use. The furnace must not be used

for heating food, animals, wood, grain, etc.

- The furnace must not be used as a workplace heater.

- Do not use the furnace to melt ice or similar materials.

- Do not use the furnace as a clothes dryer.

Note

See safety instructions in the individual sections.

18

Pos: 40 /TD/Allgemeine Hinweise (für alle Anleitungen)/ Hinweis - Dieser Ofen verfügt über keine Sicherheitstechni

k

Pos: 41 /TD/Allgemeine Hinweise (für alle Anleitungen)/ Hinweis - Dieses Produkt entspricht nicht der ATEX-Ric htli

n

Pos: 42 /TD/Sicherheit/Überschrift - Anforder ungen an den Betreiber der Anlage @ 0\mod_1167823775531_51.do

c

3.2 Req

Pos: 43 /TD/Sicherheit/Anforderungen an den Betreiber der Anlage - RHTH, RHTC, LHT, Rohröfen @ 2\mod_1184

k

für Prozesse, ..-nicht brennbare Gase @ 8\mod_12350 3869 9771_51.docx @ 51483 @ @ 1

n

ie und darf nicht ..-nicht brennbare Gase @ 2\mod_1184228 756893_51.docx @ 19686 @ @ 1

c

x @ 5157 @ 2 @ 1

uirement

s

4

570280797_51.docx @ 19913 @ @ 1

Caution

Operating

t

mixtures c

r

This furna

c

mixtures,

fo

If the furn

a

gas mixtur

e

pre-requisi

t

situations

s

You must

e

N

aberther

m

involving t

h

Note

This produ

c

atmospher

e

where expl

o

for the

F

The set-up

b

e deemed

N

aberther

m

This level

o

measures h
measures a

n

The oper

a

 al

l

sy

 th

e

 th

e

 th

e

th

e

 th

eop

 th

e

th

ewi

 al

lDa

 fu

rsafins

 a

rOcwo

 al

lass

he furnace w

i

eated as a res

e features no

r example d

e

ce is still use

d

s in the furn

a

e applies not

uch as p

r

oce

s

nsure that th

e

offers a bro

a

e use of co

m

t does not c

o

s. It must not

sive gases o

r

urnace O

instructions a

n

to have been

u

GmbH.

f safety whe

n

a

ve been tak

e

d controllin

g

tor must e

n

harmful gas

e

s

tem,

extraction s

y

workplace i

s

furnace is o

p

functions of

required pe

r

erating, main

t

se operating
furnace. Th

e

th or on the f

u

the safety an

maged or un

r

nace person

n

ety and envi

r

tructions, es

p

isk assessme

n

cupational S

a

rking condit

i

other instruc

t

essment for

t

th explosive

g

ult of heating

safety techn

o

binding.

for such pr

o

ce must neve
only to norm

a

s disruptions

furnace is a

d

d range of f

u

bustible gas

m

mply with th

e

be operated

w

mixtures ar

e

perator

nd safety reg

u

used improp

e

operating th

e

n. It depends

how they ar

e

sure that

s are remove

d

stem is swit

c

properly ve

n

erated only i

n

the safety co

m

sonal protect

i

tenance, and

r

instructions,

i

se instructio

n

rnace;

d operating i

n

eadable sign

s

el are inform

e

onmental pr

o

ecially those

t is carried o

u

fety Act) to

d

ons particula

r

tions and saf

e

he workplac

e

ases or mixt

u

/drying, is pr

o

logy for proc

cesses despit

e

r exceed 3%

o

l operation

b

(caused, for

e

equately ven

t

rnaces which

ixtures.

ATEX Dire

c

ith explosiv

e

produced.

lations must

rly, effective

l

e

furnace can

on the furnac

carried out.

from the w

o

hed on,

tilated,

n

a perfect o

p

ponents are

ve equipmen

t

epair person

n

ncluding the

s must be av

a

struction sig

n

must be repl

d regularly

a

tection and a

r

involving sa

f

t (in Germa

n

etermine an

y

to the furna

c

ty guidelines
are compile

d

res, includin

g

hibited.

e

sses which

p

this fact, the

f the lower e

x

u

t, in particul

xample, by t

h

ilated and ve

n

were especia

l

tive and ma

y

gases or mi

x

b

e followed,

o

y cancelling

a

be achieved

o

operator's d

i

rkplace, for

e

erating condi

t

checked reg

u

is available

f

el.

upplier docu

m

ilable at all

t

i

s on the furn

a

a

ced immedi

a

b

out all issue

s

e familiar wi

t

ty,

y, covered b

y

other hazard

s

e's location,

that have bee

n

in an operati

g

explosive g

a

roduce comb

u

concentratio

n

x

plosion limi

t

ar, to excepti

o

e failure of a

n

ted.

l

ly developed

not

b

e used

i

tures or duri

n

therwise the

ny claims ag

a

nly if all the

i

ligence in pl

a

xample by a

n

t

ion and, in p

a

larly.

or and used

b

mentation, ar

e

mes for anyo

ce can be re

a

tely,

s involving o

c

h all the ope

r

Section 5 of

s that may re

s

n determined
on manual (i

n

ses or

stible

of organic

(LEL). This

nal

power unit).

for processe

s

n ignitable
g processes

furnace will

inst

n

ecessary

nning these

extraction

rticular, that

y the

kept near

n

e working

d properly.

cupational

ating

the

ult from the

in a risk
Germany,