Thermo Scientific 51029327 User Manual

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These operating instructions are protected by copyright. Rights resulting thereof, particularly reprint, photomechanical or digital postprocessing or reproduction, even in part, are only allowed with the written consent of Thermo Electron LED GmbH. This regulation does not apply to reproductions for in-plant use. The contents of this operating instructions manual may change at any time and without any prior notice. In case of conflicting translations into foreign languages the German-language version of these operating instructions shall be binding.

Trademarks

Heratherm™ is a registered trademark of Thermo Scientific. Thermo Scientific is a brand owned by Thermo Fisher Scientific, Inc.

All other trademarks mentioned in the operating instructions are the exclusive property of the respective manufacturers.

Thermo Fisher Scientific Robert-Bosch-Straße 1 D - 63505 Langenselbold Germany

Thermo Electron LED GmbH is an affiliate to: Thermo Fisher Scientific Inc. 81 Wyman Street Waltham, MA 02454 USA

Thermo Fisher Scientific Inc. provides this document to its customers with a product purchase to use in the product operation. This document is copyright protected and any reproduction of the whole or any part of this document is strictly prohibited, except with the written authorization of Thermo Fisher Scientific Inc.

The contents of this document are subject to change without notice. All technical information in this document is for reference purposes only. System configurations and specifications in this document supersede all previous information received by the purchaser.

Thermo Fisher Scientific Inc. makes no representations that this document is complete, accurate or errorfree and assumes no responsibility and will not be liable for any errors, omissions, damage or loss that might result from any use of this document, even if the information in the document is followed properly.

This document is not part of any sales contract between Thermo Fisher Scientific Inc. and a purchaser. This document shall in no way govern or modify any Terms and Conditions of Sale, which Terms and Conditions of Sale shall govern all conflicting information between the two documents.

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Contents

Chapter 1 Safety Notes ..................................................................................................................... 1-1

Basic Operating Precautions ............................................................................................................... 1-1

Operational Safety Rules .................................................................................................................... 1-2

Warranty ............................................................................................................................................ 1-2

Explanation of Safety Information and Symbols ................................................................................. 1-3

Safety Notes and Symbols Used Throughout These Operating Instructions ................................... 1-3

Additional Symbols for Safety Information..................................................................................... 1-4

Symbols on the Oven ..................................................................................................................... 1-5

Intended use of the device .................................................................................................................. 1-5

Correct Use .................................................................................................................................... 1-5

Incorrect Use .................................................................................................................................. 1-5

Standards and Directives .................................................................................................................... 1-6

Chapter 2 Delivery of the Oven ........................................................................................................ 2-1

Packaging ........................................................................................................................................... 2-1

Acceptance Inspection ........................................................................................................................ 2-1

Scope of Supply .................................................................................................................................. 2-2

Chapter 3 Installation........................................................................................................................ 3-1

Ambient Conditions ........................................................................................................................... 3-1

Location Requirements ................................................................................................................... 3-1

Use with Air Exhaust Systems......................................................................................................... 3-1

Intermediate Storage........................................................................................................................... 3-2

Room Ventilation............................................................................................................................... 3-3

Use with Air Exhaust Systems............................................................................................................. 3-3

Space Requirement ............................................................................................................................. 3-4

Installation Built-in Units............................................................................................................... 3-4

Table-top ovens .............................................................................................................................. 3-5

Floor Stand Ovens .......................................................................................................................... 3-6

Transport ........................................................................................................................................... 3-8

Stacking Kit...................................................................................................................................... 3-10

Installing the Stacking Feet............................................................................................................... 3-10

Installing the Stacking Adapter ......................................................................................................... 3-11

Installing the Anti-tilt Anchor .......................................................................................................... 3-12

Floor stand unit spacers .................................................................................................................... 3-14

Chapter 4 Product Description ........................................................................................................ 4-1

Heratherm OGS Series Oven Overview ............................................................................................. 4-1

Heratherm OMS Series Oven Overview ............................................................................................. 4-8

Safety Devices................................................................................................................................... 4-11

Work Space Atmosphere .................................................................................................................. 4-11

Thermo Scientific Heratherm i

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Contents

Sensing and Control System ............................................................................................................. 4-11

Data Communications & Alarm Interface ........................................................................................ 4-12

RS-232 Interface........................................................................................................................... 4-12

AC Power Socket.......................................................................................................................... 4-12

Fuses............................................................................................................................................. 4-13

Work Space Components ................................................................................................................. 4-13

Inner Chamber ............................................................................................................................. 4-13

Access port.................................................................................................................................... 4-13

Tube Access Ports............................................................................................................................. 4-15

Chapter 5 Start-up ............................................................................................................................. 5-1

Installing the Shelf System of the table-top ovens ............................................................................... 5-1

Initial installation ............................................................................................................................... 5-1

Installing the Shelving ........................................................................................................................ 5-2

Preparing the Work Space .................................................................................................................. 5-3

Table-top ovens .................................................................................................................................. 5-3

Installation or Removal of the Support Rails (OMS Series only)..................................................... 5-3

Installing and Uninstalling the Rear Air Baffle (OMS Series only) .................................................. 5-4

Installing and Uninstalling the Air Baffles (OGS Series only) ......................................................... 5-5

Commissioning of floor stand ovens ................................................................................................... 5-7

Installing/Removing air baffles (OGS Series) .................................................................................. 5-7

Commissioning, general ................................................................................................................. 5-8

Installing the Shelf Support Brackets .............................................................................................. 5-8

Installing the Wire-mesh Shelves .................................................................................................... 5-9

Levelling the Table-top ovens ......................................................................................................... 5-9

Mains Connection ............................................................................................................................ 5-10

Connection to the Power Supply Source....................................................................................... 5-10

Connecting the RS-232 Interface ..................................................................................................... 5-12

Interconnecting the Oven with a Computer ................................................................................. 5-12

Chapter 6 Operation.......................................................................................................................... 6-1

Preparing the Oven ............................................................................................................................ 6-1

Starting Operation.............................................................................................................................. 6-1

Chapter 7 Handling and Control ...................................................................................................... 7-1

Powering Up ...................................................................................................................................... 7-5

Switching the Oven Off / Powering Down ......................................................................................... 7-5

Temperature Set Value ....................................................................................................................... 7-6

Timer ................................................................................................................................................. 7-7

Stopping a Timer............................................................................................................................ 7-8

Settings............................................................................................................................................... 7-9

Error Log........................................................................................................................................ 7-9

Calibration ................................................................................................................................... 7-10

Temperature Display Unit............................................................................................................ 7-11

Configuration ............................................................................................................................... 7-12

Chapter 8 Shut-down ........................................................................................................................ 8-1

Shutting the Oven Down ................................................................................................................... 8-1

ii Heratherm Thermo Scientific

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Contents

Chapter 9 Cleaning and Disinfection ...............................................................................................9-1

Cleaning..............................................................................................................................................9-1

Cleaning exterior surfaces ................................................................................................................9-1

Wipe / Spray Disinfection...................................................................................................................9-1

Preparing the manual wipe/spray disinfection..................................................................................9-2

Predisinfection ................................................................................................................................9-3

Chapter 10 Maintenance....................................................................................................................10-1

Inspections and Checks .....................................................................................................................10-1

Service Intervals.................................................................................................................................10-2

Preparing Temperature Calibration...................................................................................................10-2

Comparison Measurement Procedure................................................................................................10-3

Temperature Calibration Procedure ..................................................................................................10-3

Replacing the Door Seal ....................................................................................................................10-4

Replacing the Power Cord.................................................................................................................10-4

Returns for Repair .............................................................................................................................10-4

Chapter 11 Disposal...........................................................................................................................11-1

Overview of Materials Used ..............................................................................................................11-1

Chapter 12 Error Codes.....................................................................................................................12-1

Chapter 13 Technical Data ................................................................................................................13-1

Chapter 14 Spare Parts and Accessories ........................................................................................14-1

Chapter 15 Device Log ......................................................................................................................15-1

Chapter 16 Contact ............................................................................................................................16-1

Thermo Scientific Heratherm iii

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Contents

iv Heratherm Thermo Scientific

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List of Figures

Figure 3-1 Table-top ovens OGS 60 / OGS 100 / OGS 180, dimensions and required clearances ........................ 3-5

Figure 3-2 Floor stand ovens OGS 400, dimensions and required clearances ......................................................... 3-6

Figure 3-3 Floor stand ovens OGS 750, dimensions and required clearances ......................................................... 3-7

Figure 3-4 Lift Points............................................................................................................................................. 3-8

Figure 4-1 Heratherm OGS 60 / OGS 100 / OGS 180 Series Front View ............................................................ 4-2

Figure 4-2 Heratherm OGS 60 / OGS 100 / OGS 180 Series Rear View .............................................................. 4-3

Figure 4-3 Heratherm OGS 400 Series Front View ............................................................................................... 4-4

Figure 4-4 Heratherm OGS 400 Series Rear View................................................................................................. 4-5

Figure 4-5 Heratherm OGS 750 Series Front View ............................................................................................... 4-6

Figure 4-6 Heratherm OGS 750 Series Rear View................................................................................................. 4-7

Figure 4-7 Heratherm OMS Series Front View...................................................................................................... 4-9

Figure 4-8 Heratherm OMS Series Rear View ....................................................................................................... 4-10

Figure 4-9 Sensor Mounting Location - OGS Series and OMS Series - Table-top ovens ....................................... 4-11

Figure 4-10 Sensor Mounting Location - OGS Series and OMS Series - Floor stand ovens ................................... 4-11

Figure 4-11 Signal Interfaces and Power Socket ..................................................................................................... 4-12

Figure 4-12 Shelf System - OGS Series Oven - Table-top ovens ............................................................................ 4-14

Figure 4-13 Shelf System - OMS Series Oven - Table-top ovens............................................................................ 4-15

Figure 4-14 Tube Access Ports............................................................................................................................... 4-16

Figure 5-1 Sliding the Retaining Spring into the Support Rail ............................................................................... 5-1

Figure 5-2 OGS Series - Installing the Shelving ..................................................................................................... 5-2

Figure 5-3 OMS Series - Installing the Shelving..................................................................................................... 5-2

Figure 5-4 Support Rail Installation....................................................................................................................... 5-3

Figure 5-5 Installing the Rear Air Baffle................................................................................................................. 5-4

Figure 5-6 Removing the Bottom Panel................................................................................................................. 5-5

Figure 5-7 Bottom Panel Removed ........................................................................................................................ 5-5

Figure 5-8 Removing the Lateral Air Baffle ............................................................................................................ 5-6

Figure 5-9 Removing the bottom plate .................................................................................................................. 5-7

Figure 5-10 Removing the left and right support profiles....................................................................................... 5-7

Figure 5-11 Removing the rear air baffle OGS 400/750 ........................................................................................ 5-8

Figure 5-12 Shelf Support Bracket Installation ...................................................................................................... 5-9

Figure 5-13 Wire-mesh shelf.................................................................................................................................. 5-9

Figure 5-14 AC Power Supply Socket .................................................................................................................... 5-11

Figure 7-1 Control Panel for Heratherm OGS Series and OMS Series ovens......................................................... 7-1

Figure 10-1 Door seal replacement (example showing OMH Series oven) ............................................................. 10-4

Thermo Scientific Heratherm i

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List of Figures

ii Heratherm Thermo Scientific

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Safety Notes

Basic Operating Precautions

These operating instructions describe Heratherm ovens.

Heratherm ovens have been manufactured to the latest state of the art and been tested thoroughly for flawless functioning prior to shipping. However, the oven may present potential hazards, particularly if it is operated by inadequately trained personnel or if it is not used in accordance with the intended purpose. Therefore, the following must be observed for the sake of accident prevention:

• Heratherm ovens must be operated by adequately trained and authorized professional personnel.

• Heratherm ovens must not be operated unless these operating instructions have been fully read and understood.

• The present operating instructions, applicable safety data sheets, plant hygiene guidelines and the corresponding technical rules issued by the operator shall be used to create written procedures targeted at personnel working with the subject matter device, detailing:

• the safety precautions to be taken when processing specific agents,

• the measures to be taken in case of accidents.

• Repair work on the oven must be carried out only by trained and authorized expert personnel.

• The contents of these operating instructions are subject to change at any time without further notice.

• Concerning translations into foreign languages, the German version of these operating instructions is binding.

• Keep these operating instructions close to the oven so that safety instructions and important information are always accessible.

• Should you encounter problems that are not detailed adequately in these operating instructions, please contact Thermo Electron LED GmbH immediately for your own safety.

Thermo Electron LED GmbH Heratherm 1-1

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Safety Notes Operational Safety Rules

Operational Safety Rules

The following rules must be heeded when working with Heratherm ovens:

• Observe the sample weight limits specified for your Heratherm oven as a whole and its shelving in particular; see “Technical Data” on page 13-1.

• Do not load the bottom of the interior workspace to avoid the risk of overheating any samples placed there.

• Arrange the samples evenly throughout the work space, making sure not to place them too closely to the interior walls to ensure a uniform temperature distribution.

• Do not load your Heratherm oven with substances that exceed the capabilities of the available lab apparatus and Personal Protection Equipment to provide sufficient degrees of protection to users and third parties.

• Check the door seal once a month for proper sealing performance and possible damage.

• Do not process any samples containing hazardous chemical substances that may be released into the ambient air through defective seals or may cause corrosion or other defects on parts of the Heratherm oven.

Warranty

Thermo Electron LED GmbH warrants the operational safety and functions of the Heratherm ovens only under the condition that:

• the oven is operated and serviced exclusively in accordance with its intended purpose and as described in these operating instructions,

• the oven is not modified,

• only original spare parts and accessories that have been approved by Thermo Electron LED GmbH are used (third-party spares without Thermo Electron LED GmbH approval void the limited warranty),

• inspections and maintenance are performed at the specified intervals,

• an installation verification test is performed on commissioning the oven for the first time and repeated after each inspection and repair activity.

The warranty is valid from the date of delivery of the oven to the customer.

1-2 Heratherm Thermo Electron LED GmbH

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Safety Notes

Explanation of Safety Information and Symbols

Safety Notes and Symbols Used Throughout These Operating Instructions

Indicates a hazardous situation which, if not avoided, will result in death or serious injuries.

Indicates a hazardous situation which, if not avoided, could result in death or serious injuries.

Indicates a situation which, if not avoided, could result in damage to equipment or property.

Is used for useful hints and information regarding the application.

Thermo Electron LED GmbH Heratherm 1-3

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Safety Notes Explanation of Safety Information and Symbols

Additional Symbols for Safety Information

Wear safety gloves!

Wear safety goggles!

Harmful liquids!

Electric shock!

Hot surfaces!

Fire hazard!

Explosion hazard!

Suffocation hazard!

Danger of tipping!

1-4 Heratherm Thermo Electron LED GmbH

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Symbols on the Oven

Observe operating instructions

Mark of conformity USA/Canada

120 Volts AC power socket (60 l devices only)

Intended use of the device

Safety Notes

Intended use of the device

Correct Use

Heratherm ovens are laboratory devices for heating applications, equipped with precision temperature control.

They are designed for heat treating samples or materials at operating temperatures between 50 °C (122 °F) and 250 °C (482 °F), including - for example, drying, ageing, analyzing, decomposing, burn-in, oxidizing, reducing, and preheating.

Heratherm ovens have been designed for installation and operation in the following environments:

• heat treatment;

• drying of material.

Incorrect Use

To avoid the risk of explosion do not load the oven with tissue, material, or liquids that:

• are easily flammable or explosive;

• release vapor or dust that forms combustible or explosive mixtures when exposed to air;

• release poisons;

• create a humid atmosphere;

• release dust;

• exhibit exothermic reactions;

• are pyrotechnical substances;

• exceed the specified hurdle load.

Thermo Electron LED GmbH Heratherm 1-5

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Safety Notes Standards and Directives

Standards and Directives

The oven complies with the following standards and guidelines:

• IEC EN 61010 - 1, IEC EN 61010 - 2 - 010

• Low Voltage Directive 2006/95/EC

• EMC Directive 2004/108/EC

Additionally, the oven is in compliance with many other international standards, regulations and directives not listed here. Should you have any questions regarding compliance with national standards, regulations and directives applicable for your country, please contact your Thermo Fisher Scientific sales organization.

1-6 Heratherm Thermo Electron LED GmbH

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Delivery of the Oven

Packaging

Heratherm ovens are delivered in a rugged packaging box. All packaging materials can be separated and are reusable:

Packaging materials

Packaging carton: Recycled paper

Foam elements: Styrofoam (CFC-free)

Pallet: Chemically untreated wood

Packaging film: Polyethylene

Packaging ribbons: Polypropylene

Acceptance Inspection

After the oven has been delivered, check the delivery immediately for:

• completeness,

• possible damage.

If components are missing or damage is found on the oven or the packaging, in particular damage caused by humidity and/or water, please notify the carrier as well as Technical Support immediately.

Risk of injury

Should sharp edges have formed in damaged areas or elsewhere on the device, take all necessary precautions to protect personnel handling the oven. For example, have them wear protective gloves and other personal protection equipment.

Thermo Scientific Heratherm 2-1

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Delivery of the Oven Scope of Supply

Scope of Supply

Ovens

Quantity of components supplied (pieces) OGS Series OMS Series

Wire-mesh shelf 2 2

Support rail for shelf (for table-top ovens only) 0 2

Shelf support 4 4

Power cord 1 1

Clip springs (for table-top ovens only) 0 2

Operating manual 1 1

Short reference guide 1 1

2-2 Heratherm Thermo Scientific

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Installation

During installation of built-in units, ensure that the escaping air will be safely discharged out of the installation space.

Fig. 1

Fig. 2

Ambient Conditions

Location Requirements

Built-in units of incubators can, heating and drying ovens must be operated with an air exhaust system and exhaust hose (only original Thermo accessory should be used).

For safety reasons, the installation space should be made of non-combustible materials, according to DIN 4102.

Use with Air Exhaust Systems

For built-in units, a temperature-resistant and corrosion-proof exhaust hose (only original Thermo accessory) should be used, which can be connected to the air exhaust port with a draft interrupter.

If several built-in units in a row are connected to a central air exhaust system (see illustration), a draft interrupter should be installed.

Thermo Scientific Heratherm 3-1

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Installation Intermediate Storage

The oven must only be operated in a location that meets all of the ambient condition requirements listed below:

• Draft-free and dry indoor location.

• The dust burden may not exceed the contamination category 2 based on EN 61010-1.

• The minimal distance to adjacent surfaces must be observed on all sides (see section

• The operating room must be equipped with appropriate ventilation.

• Solid, level, fire-proof surface and no flammable materials opposite to the rear panel of

• Vibration-proof substructure (floor stand, lab table) capable of bearing the dead weight

• The ovens have been designed for an operating height of up to 2000 m above sea level.

Using the oven in an atmosphere with electrically conductive dust is prohibited.

“Space Requirement” on page 3-4).

the oven.

of the oven and its accessories (particularly if two devices are stacked).

• Ambient temperature range from 18 °C to 32 °C / 64.4 °F to 89.6 °F.

• Relative humidity up to 80% (maximum; preferably 60-70%), non condensing.

• Should condensation exist, wait until the moisture has evaporated completely before connecting the oven to a power source and powering up.

• Avoid direct exposure to sunlight.

• Devices that produce excessive amounts of heat must not be placed near the oven.

• To avoid drying operation without an appropriate fresh air supply make sure that the air inlet (which may be equipped with an optional fresh air filter) is not obstructed or blocked by any adjacent objects.

• Power line voltage variations must not exceed ±10 % of the nominal voltage.

• Transient overvoltages must not exceed the values usually encountered throughout the power supply network. The nominal transient overvoltage level shall be the surge withstand voltage according to overvoltage category II of IEC 60364-4-443.

• Place the oven on a floor stand (option; to be ordered separately), never on the lab floor.

• Consider installing one dedicated upstream circuit breaker per oven to avoid multiple device failures in case of an electrical fault.

Intermediate Storage

When the oven is placed in intermediate storage, which is permissible for a maximum of four weeks, make sure that the ambient temperature is between 20 °C to 60 °C (68 °F to 140 °F) and the maximum relative humidity does not exceed 90%, non-condensing.

3-2 Heratherm Thermo Scientific

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Room Ventilation

Fig. 1

Fig. 2

Heat dissipating from the oven during continuous operation may cause a change in the room climate.

• Therefore, the oven must only be installed in rooms with sufficient ventilation.

• Do not install the oven in room recesses without ventilation.

• When several devices are to be placed in the same room, additional ventilation may have to be provided as necessary.

• To avoid any impact of the heat dissipated by the oven on the ambient climate the room must be vented by means of a laboratory-grade ventilation system that complies with applicable local and national health and safety regulations and has sufficient capacity.

• If excessive temperatures tend to occur in the operating room, be sure to provide a thermal protection means that cuts out the power supply to mitigate the impact of overtemperature scenarios.

Installation

Room Ventilation

Use with Air Exhaust Systems

When the oven is connected to an air exhaust system be sure to adjust its air flow so the temperature distribution pattern throughout the oven's workspace remains unchanged and precision temperature control is maintained.

Also, be sure to interlock the oven and its exhaust system so both start and run at the same time. The oven may be unable to overcome the extra flow resistance introduced by the idle air exhaust system, which may cause the exhaust air to be vented into the surrounding lab room.

Before using existing piping in the building to exhaust hot air from the oven, be sure that such exhaust piping is made of heat-resistant material, so it will not overheat, melt and/or cause a fire.

The oven’s outer surfaces and its air exhaust piping may become hot, so be sure to maintain the proper spacing from walls and ceilings specified by local building codes and/or fire protection regulations.

Mark hot exhaust air piping with appropriate hot surface warning signs or restrict access to such piping altogether to avoid the risk of injury through contact with hot surfaces.

Thermo Scientific Heratherm 3-3

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Installation

Fig. 3

After connecting the built-in unit to the electrical power supply, avoid damaging the power cord, then sliding into the installation position.

Space Requirement

For built-in units following clearances should be kept:

A, B, C and D see Operating Instructions of the unit.

E (mm/inch) F (mm/inch) G (mm/inch) H (mm/inch)

100 / 4 50 / 2 80 / 3.2 30 / 1.2

Installation Built-in Units

IGS

IMH/IMH-S

OGS/OMS

OGH/OGH-S OMH/OMH-S

Clearances, as fig. 3, without exhaust hose.

Clearances, as fig. 3, Close air port with plug, supplied with the unit.

Clearances, as fig. 3, with additional space to operate to air slide, with air exhaust system and exhaust hose Ø 40 mm (1.58 in)/1.5 m (59 in) (original Thermo accessory), shortened to required length, installed according to Fig. 1 and 2.

Clearances, as fig. 3, with air exhaust system and exhaust hose Ø 40 mm (1.58 in)/1.5 m (59 in) (original Thermo accessory), shortened to required length, installed according to fig. 1 and 2, Operating temperature up to max. 250 °C (482 °F).

When installing the oven, make sure that the installation and supply connections remain freely accessible.

The specified side clearances represent minimum distances.

3-4 Heratherm Thermo Scientific

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Table-top ovens

Installation

Space Requirement

Figure 3-1 Table-top ovens OGS 60 / OGS 100 / OGS 180, dimensions and required

clearances

Table 3-1 Heratherm Oven Dimensions

Type A (mm/inch*)

B (mm/inch) C (mm/inch D (mm/inch)

OGS 60 / OMS 60 530 / 20.8 565 / 25.2 720 / 28.3 540 / 21.3

OGS 100 / OMS 100 640 / 25.2 565 / 25.2 820 / 32.3 650 / 25.6

OGS 180 / OMS 180 640 / 25.2 738/ 29.1 920 / 36.2 650 / 25.6

Dimensions in inches are rounded equivalents specified for information only. Depth of handle /display (66 mm/2.6 in) not included in overall

depth specified; height of adjustable feet (36 mm/1.4 in) not included in overall height specified.

Table 3-2 Required Clearances

E (mm/inch) F (mm/inch) G (mm/inch) H (mm/inch)

80 / 3.2 50 / 2 300 / 12 300 / 12

Thermo Scientific Heratherm 3-5

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Installation Space Requirement

Floor Stand Ovens

400 liter units

Figure 3-2 Floor stand ovens OGS 400, dimensions and required clearances

Table 3-3 Oven Dimensions

Model A (mm/inch) B (mm/inch) C (mm/inch) D (mm/inch)

OGS 400 755 / 29.7 770 / 30.3 1655 / 65.2 810 / 3 1.9

Depth of handle /display (66 mm/2.6 in) not included in overall depth specified. Width of hinge (23 mm) not included in overall width.

Table 3-4 Required Clearances

E (mm/inch) F (mm/inch) H (mm/inch) I (mm/inch)

120 / 4,7 50 / 2,0 200 / 7,9 200 / 7,9

3-6 Heratherm Thermo Scientific

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750 liter units

Installation

Space Requirement

Figure 3-3 Floor stand ovens OGS 750, dimensions and required clearances

Table 3-5 Oven Dimensions

Model A (mm/inch) B (mm/inch) C (mm/inch) D (mm/inch)

OGS 750 1215 / 47.8 770 / 30.3 1655 / 65.2 670 / 26.4

Depth of handle /display (66 mm/2.6 in) not included in overall depth specified. Width of hinge (23 mm) not included in overall width.

Table 3-6 Required Clearances

E (mm/inch) F (mm/inch) H (mm/inch) I (mm/inch)

120 / 4.7 50 / 2.0 200 / 7.9 350 / 13.8

Thermo Scientific Heratherm 3-7

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Installation Transport

Transport

Table-top ovens

For transport, do not lift the oven using the doors or components attached to the oven as lift points.

Figure 3-4 Lift Points

To avoid injury through physical strain, such as strain traumata and slipped discs, do not attempt to lift the oven alone! To avoid injury through dropped loads, be sure to wear Personal Protection Equipment, such as safety shoes, when lifting the oven. To avoid crushing your fingers or hands (particularly in a closing door) or damaging the oven, do not use any other lift points than those indicated in the illustration above.

Heavy loads! Lift with care!

3-8 Heratherm Thermo Scientific

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Floor stand ovens

The floor stand ovens come equipped with four (4) casters. The lever for releasing the caster is located above the locking lever. After positioning the unit in its installation location ensure that the locking levers are pressed down on the casters.

To ensure the degree of stability specified by safety requirements the front casters must be turned so that they are facing forward after the unit has been positioned in its installation location and the locking levers pressed down on these casters.

Installation

Transport

Danger of tipping when moving!

Before moving the unit, ensure that it has been unplugged.

Move the Heratherm floor stand ovens with caution.

Quick starts and stops can result in tipping!

Always ensure that the doors are closed when moving the unit.

Thermo Scientific Heratherm 3-9

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Installation Stacking Kit

Stacking Kit

The stacking adapter is available only for table-top ovens.

Material Number Description

50126665 Stacking adapter Heratherm 60L

50126666 Stacking adapter Heratherm 100L

50126667 Stacking adapter Heratherm 180L

Scope of Delivery

• 1 stacking adapter

• 1 anti-tilt anchor

• 1 plastic bag with 2 stacking feet and 2 M4x16 Torx screws.

Required Tools

• Slotted screwdriver 5,5x100 or Torx screwdriver 20x100.

Installing the Stacking Feet

1. Remove the left and right blank plugs at the top blank.

2. Install the stacking feet with the enclosed screws using a slotted or Torx screwdriver.

3-10 Heratherm Thermo Scientific

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Installing the Stacking Adapter

Stacking adapter HTM 60

Stacking adapter HTM 100

Stacking adapter HTM 180

Anti-tilt anchor

Installation

Installing the Stacking Adapter

Stack as follows when using a stacking adapter (numbers denote oven volumes in liters):

• for 60/100/180 on 180 use stacking adapter Heratherm 180L,

• for 60/100 on 100 use stacking adapter Heratherm100L,

• for 60 on 60 use stacking adapter Heratherm 60L.

To prevent the top oven from slipping and dropping down, the following requirements must be fulfilled before devices may be stacked:

• Only two units may be stacked together. When stacking devices with the same type of enclosure, yet with a different footprint the device with the smaller footprint must be placed on top of the one with the larger footprint at all times.

• The bottom device must be correctly levelled.

• Be sure to use the appropriate stacking adapter.

• The levelling feet on the top device must be screwed in all the way.

• The levelling feet of the top device must be aligned with and placed exactly on the stacking pads of the stacking adapter.

• The anti-tilt anchor must be installed on the top device.

Thermo Scientific Heratherm 3-11

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Installation Installing the Anti-tilt Anchor

Installing the Anti-tilt Anchor

Table-top ovens

The anti-tilt anchor secures the top device in a stack to a solid part of a building. The anti-tilt anchor is to be mounted on the side opposite of the door hinges.

Bend the fixing tabs of the anti-tilt anchor up on one side and down on the other by an angle of approx. 90°.

1. Do not use this position if the door is hinged on this side. Right-hand hinges represent the standard configuration.

2. Preferred position.

3. Alternative position. Do not use if the door is hinged on this side.

Remove the bracket screws. Use the preferred position, if possible.

Fix the anti-tilt anchor with the bracket side down to the unit.

Position the unit with the anti-tilt anchor to in an angle of approx. 90° +/- 20%.

Take care that the stacking feet of the unit are still in correct place on the lower unit or on the stacking adapter.

Fix the anti-tilt anchor to a solid part of the building.

3-12 Heratherm Thermo Scientific

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Floor stand ovens

Unsafe part of the building!

Install the anti-tilt anchor to a solid part of the building, which is able for shoring loads.

The installation has to be carried out by qualified personnel only.

The connection to the building must be carried out with appropriate screws and dowels according to the consistence of the building part.

Heratherm floor stand ovens must always be attached to the wall using two (2) retaining brackets on the outer left and right side on the back of the unit.

Anti-tilt anchors

Installation

Installing the Anti-tilt Anchor

Remove the screws.

Attach the end of the retaining bracket that is facing downward to the unit.

Align the device at roughly 90°, +/-20° to the retaining bracket.

Affix the retaining bracket to the wall.

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Installation

Risk of overheating with stacked devices

To avoid the risk of electrical components and the outer enclosure overheating or temperature control failing due to insufficient ventilation, do not exceed the specified stacking height!

Risk of tipping and dropping of stacked devices

You should be aware at all times that stacked devices do not form a stable unit, even when the stacking pads and frames are used correctly. The top device may tip over and drop down when being transported in a stack. To avoid injury to persons and damage to equipment, do not attempt to move stacked devices as a unit! Separate and move each device one by one, then restack them.

Thermo Scientific accepts no responsibility or liability whatsoever with regard to stacked third party devices; this is at the user’s own risk.

Floor stand unit spacers

Additionally, the following caution notes must be heeded at all times:

Floor stand unit spacers

The spacer on the electrical module must be pulled out and fixed in place before installing the floor stand unit at its installation location.

1 Loosen the 2 screws

3-14 Heratherm Thermo Scientific

2 Pull out the spacer and slide the screws into the recesses

3 Tighten the two screws

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Product Description

This section describes Heratherm general protocol ovens for standard laboratory applications, which are available in two versions distinguished by convection method:

• Heratherm OGS Series general protocol natural convection ovens (see “Heratherm OGS

Series Oven Overview” on page 4-1)

• Heratherm OMS Series general protocol mechanical convection ovens (see “Heratherm

OMS Series Oven Overview” on page 4-8)

Heratherm OGS Series Oven Overview

Heratherm OGS Series (OGS is brief for Oven with Gravity convection for Standard laboratory applications) general protocol natural convection ovens come equipped with the following features:

• high-precision work space temperature control, adjustable in steps one degree up to 250 °C/482 °F;

• a mechanically-operated damper for venting the work space, equipped with an external slider rotary button control;

• an On and Off timer

• two wire-mesh shelves;

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Product Description Heratherm OGS Series Oven Overview

The individual features of OGS Series ovens are shown in the figures below.

Figure 4-1 Heratherm OGS 60 / OGS 100 / OGS 180 Series Front View

[1] Outer door [2] Door latch cutout [3] Door latch and handle [4] Door hinge, lower [5] Levelling foot [6] Nameplate [7] Air baffle, bottom [8] Air baffle, side [9] [10] Door hook catch [11] Wire-mesh shelf [12] Support rail for wire mesh shelf [13] Door seal [14] Stacking pad [15] Temperature sensor [16] Exhaust air tube

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Product Description

Heratherm OGS Series Oven Overview

Figure 4-2 Heratherm OGS 60 / OGS 100 / OGS 180 Series Rear View

[1] Door latch and handle [2] Control panel [3] Stacking pad [4] [5] [6] Spacer [7] [8] [9] Mechanical air inlet slider [10] [11] Electronics compartment [12] Levelling foot

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Product Description Heratherm OGS Series Oven Overview

Figure 4-3 Heratherm OGS 400 Series Front View

[1] Outer door [2] Door latch [3] Unit caster [4] Air baffle, bottom [5] Wire-mesh shelf [6] Door hook catch [7] [8] Temperature sensor [9] Exhaust air tube [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] Air baffle, side

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Product Description

Heratherm OGS Series Oven Overview

Figure 4-4 Heratherm OGS 400 Series Rear View

[1] Outer door [2] [3] Unit caster [4] [5] [6] [7] [8] [9] [10] [11] Exhaust air tube [12] Anti-tilt anchor [13] Electronics compartment [14] Inlet air tube [15] Hinge [16] Handle [17] Display [18] Nameplate on sidewall

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Product Description

Heratherm OGS Series Oven Overview

Figure 4-5 Heratherm OGS 750 Series Front View

[1] Outer door [2] Door hook catch [3] Unit caster [4] Air baffle, bottom [5] Wire-mesh shelf [6] Door latch [7] [8] Temperature sensor [9] Exhaust air tube [10] Door hinge [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] Air baffle, side

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Product Description

Heratherm OGS Series Oven Overview

Figure 4-6 Heratherm OGS 750 Series Rear View

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Product Description Heratherm OMS Series Oven Overview

Heratherm OMS Series Oven Overview

Heratherm OMS Series (OMS is brief for Oven with Mechanical convection for Standard laboratory applications) general protocol fan convection ovens come equipped with the following features:

• high-precision work space temperature control, adjustable in steps of one degree up to 250 °C/482 °F;

• a fixed-speed fan for optimizing temperature uniformity throughout the work space;

• a mechanically-operated damper for venting the work space, equipped with an external slider rotary button control;

• an On and Off timer;

• two wire-mesh shelves.

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Heratherm OMS Series Oven Overview

The individual features of OMS Series ovens are shown in the figures below.

Product Description

Figure 4-7 Heratherm OMS Series Front View

[1] Outer door [2] Door latch cutout [3] Door latch and handle [4] Door hinge, lower [5] Levelling foot [6] Nameplate [7] Air baffle, top piece [8] Support rail for wire mesh shelf [9] Shelf support [10] Fan cover, integrated into air baffle [11] Door hook catch [12] Air baffle [13] Door seal [14] Stacking pad [15] Spring for air baffle [16] Temperature sensor [17] Exhaust air tube

Thermo Scientific Heratherm 4-9

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Product Description Heratherm OMS Series Oven Overview

Figure 4-8 Heratherm OMS Series Rear View

[1] Door latch and handle [2] Control panel [3] Stacking pad [4] [5] [6] Spacer [7] Exhaust air tube [8] [9] Mechanical air inlet slider [10] [11] Electronics compartment [12] Levelling foot

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Safety Devices

The oven is equipped with the following safety features:

• a sample protection feature that safeguards the samples against destruction through overheating in case of contoller failure;

• an overheat protection cut-out feature that shuts down the oven completely when excessive temperatures occur in the workspace;

• dual fuses rated at 16 amperes.

Work Space Atmosphere

To ensure undisturbed operation, the ambient temperature in the operating room must be at least 18 °C (64.4 °F). The heating system controls the temperature in the oven’s workspace of 50 °C/122 °F up to the maximum of 250 °C/482 °F.

Product Description

Safety Devices

Sensing and Control System

The PT 100-type sensor for the control of the work space temperature and for the thermal protection [1] is mounted in the top panel of the work space compartment.

Figure 4-9 Sensor Mounting Location - OGS Series and OMS Series -

Table-top ovens

Figure 4-10 Sensor Mounting Location - OGS Series and OMS Series - Floor

stand ovens

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Product Description Data Communications & Alarm Interface

The work space temperature sensor provides the inputs to the oven’s built-in controller, which continuously compares the measured values to the user-specified set value and adjusts the heaters according to the result.

Protect the sensor from mechanical damage.

The unit features a thermal protection function that is factory-preprogrammed and not adjustable. It protects the samples in the work space from overheating: Thermal protection kicks in on a brief violation of the upper limit, based on the user-selected temperature set value, automatically reducing the work space temperature to the user-specified set value and allowing the heating process to continue even in case of a controller malfunction. If the thermal protection is activated, the error message (E111) “Temperature too high” appears in the display window and an audible alarm is sounded.

When the user acknowledges the error message, the red alarm icon (D3 in figure 7-1 on

page 7-1) is illuminated and the Temperature Set Value icon (see table 7-3 on page 7-3) is

highlighted by a red border to indicate that thermal protection has kicked in.

Data Communications & Alarm Interface

All signal connections are installed in the electrical interface panel at the rear of the oven.

RS-232 Interface

The RS- 232 interface (left in figure 4-11 below) may be used to connect ovens to the serial interface port of a computer to allow for the computer-aided acquisition and documentation of major operating parameters (temperature, error codes, etc.).

Figure 4-11 Signal Interfaces and Power Socket

AC Power Socket

The oven is connected to the AC supply mains via the socket at right in figure 4-11 above, which accepts a power cord with an IEC standard plug [9].

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Fuses

Product Description

Work Space Components

Two 16 A slow-blow fuses mounted on the oven’s main electronic circuit board protect internal circuitry from the impact of excessive power consumption.

Replacement should only be carried out by skilled and authorized qualified personnel of electrotechnology/signal engineering!

Fuse replacement

The device fuses are not user-serviceable. When the oven exhibits the typical signs of a blown fuse (no response to pressing the On/Off button, control panel remains extinguished, no heating operation), call Customer Service to have the fuses replaced.

Work Space Components

Inner Chamber

All components of the work space are made of corrosion-resistant galvanized steel and have an absolutely smooth and easy-to-clean surface. Any embossings have a large radius.

Access port

A re-sealable, capped access port (can be closed off using the plugs delivered with the unit) allows cables, hoses or additional sensor leads to be routed into the work space of the oven.

The access port [2] of the Heratherm OGS 60/100/180/400/750 has a diameter of 42 mm.

When accessories are to be operated in the work space of the oven, the ambient condition requirements must be observed (see table below). The energy introduced into the work space has an impact on the lower end of the temperature control range. When additional heating sources are introduced into the work space, temperature control may be adversely affected.

Operating conditions

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Product Description Work Space Components

Shelf System

The oven is supplied with two wire-mesh shelves. The shelf support rails have an alternating pattern of oblong and round perforations spaced evenly at 30 mm, allowing the shelf support brackets to be inserted without any room for error, yet in a very flexible way to accommodate different heights of sample containers. The shelves have an integrated tilt protection and withdrawal stop. For details on using the shelf system, see the section

“Start-up” on page 5-1.

[1] Retaining spring [2] Air baffle, lateral [3] Support rails [4] Wire-mesh shelf [5] Air baffle, bottom

Figure 4-12 Shelf System - OGS Series Oven - Table-top ovens

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Product Description

Tube Access Ports

[1] Retaining spring [2] Air baffle, rear [3] Shelf support [4] Wire-mesh shelf [5] Support rail for shelf

Figure 4-13 Shelf System - OMS Series Oven - Table-top ovens

Tube Access Ports

Heratherm heating and drying ovens may be equipped with additional tube access ports in the side and top panels.

Available tube access port options are listed in table 4-1 below.

Tabelle 4-1 Tube Access Ports for Heratherm Heating and Drying Ovens (Option)

Model

OGS 19/0.75 or 53/2.09 24/0.95 or 58/2.28

OMS 24/0.95 or 58/2.28 24/0.95 or 58/2.28

Side Panel Mounted Port, dia. in mm/inch

Top Panel Mounted Port, dia. in mm/inch

The tube access ports are mounted in fixed locations in the side and top panels (see

figure 4-14).

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Product Description

Tube Access Ports

Figure 4-14 Tube Access Ports

[1] Top panel mounted tube access port [2] Side panel mounted tube access port [3] Sealing cap for side panel mounted tube access port

Once the cables, tubes or other conduits have been inserted, the tube access ports must be padded with the heat-resistant fiber pads shipped with the device and the cap must be mounted to seal the port as far as possible.

Risk of Burning on Hot Surface

The surface around the tube access ports may become extremely hot.

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Start-up

Installing the Shelf System of the table-top ovens

The installation of the shelf system does not require any tools. The support rails are secured in place by spring action. Once the shelf support brackets have been inserted into the rails, the wire-mesh shelves can be simply pushed onto their support hooks to complete the installation.

The support rails of the floor stand ovens cannot be removed.

Initial installation

Heratherm OGS Series ovens have the shelving support rails integrated with the air baffles, which are readily pre-installed when the devices are shipped from the factory.

Heratherm OMS Series ovens come with separate support rails, which need to be installed as follows:

1. Peel off the protective foil from the support rails.

2. Push the retaining spring [1] into the guide on the support rail [2], making sure that the locking nub [3] on the retaining spring safely engages with the matching hole in the support rail.

Figure 5-1 Sliding the Retaining Spring into the Support Rail

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Start-up Installing the Shelving

Installing the Shelving

The illustrations below show the placement of the shelf system elements.

[1] Retaining spring [2] Air baffle, lateral [3] Shelf support [4] Wire-mesh shelf [5] Air baffle, bottom

Figure 5-2 OGS Series - Installing the Shelving

[1] Retaining spring [2] Air baffle, rear [3] Shelf support [4] Wire-mesh shelf [5] Support Rail

Figure 5-3 OMS Series - Installing the Shelving

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Preparing the Work Space

The following work space components should be checked for cleanliness and cleaned prior to use:

• shelf support brackets,

• wire-mesh shelves,

• work space surfaces,

• work space seals and gaskets,

For details about the cleaning of the oven, please refer to the section

“Cleaning” on page 9-1.

Disinfection

Start-up

Preparing the Work Space

Table-top ovens

Installation or Removal of the Support Rails (OMS Series only)

Figure 5-4 Support Rail Installation

The embossings at [2] and [5] act as lateral guides for the support rails, while the embossings at [1] and [6] secure the support rails in place. For the support rails to install correctly the retaining spring [3] must be facing upwards.

1. Place the support rail [4] on the lower embossing [6] and tilt it upwards against the work space side wall so that the rail is positioned over the two embossings at [5] and [2].

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Start-up Table-top ovens

2. Clamp the retaining spring [3] behind the upper embossing [1].

3. To remove the support rails, pull the retaining spring tab down out of the embossing and remove the support rail assembly.

Installing and Uninstalling the Rear Air Baffle (OMS Series only)

Heratherm OMS Series ovens are shipped from the factory with an air baffle readily pre-installed at the back wall of the work space (while OGS Series ovens do not have this feature). Before the air baffle can be removed from the back wall, the support rails need to be uninstalled as explained further above.

Figure 5-5 Installing the Rear Air Baffle

1. Losen the two screws [1] that hold the air baffle to the back wall of the work space.

Risk of damage to sensor!

To prevent accidental damage, be sure to avoid collision with the sensor when installing or uninstalling panels in the oven‘s workspace.

2. Grab the two retaining springs [2] at their tabs and pull them downwards out of the embossings, then pull off the rear air baffle.

3. For the rear air baffle to install correctly, the two retaining springs [2] must be facing upwards. Place the air baffle on the lower embossings and tilt it upwards against the back wall of the work space.

4. Clamp the two retaining springs [2] into the upper embossings.

5. Secure the air baffle to the work space back wall by fastening the two screws at [1].

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Installing and Uninstalling the Air Baffles (OGS Series only)

The following section describes the installation and removal of the air baffles.

Figure 5-6 Removing the Bottom Panel

Start-up

Table-top ovens

1. Losen the two screws [1] in the bottom panel, then remove the entire bottom panel by lifting it out of its two embossings.

Figure 5-7 Bottom Panel Removed

2. Grab the two retaining springs [1] at their tabs and pull them downwards out of the embossings, then pull off the lateral air baffle.

Risk of damage to sensor!

To prevent accidental damage, be sure to avoid collision with the sensor when installing or uninstalling panels in the oven‘s workspace.

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Start-up Table-top ovens

Figure 5-8 Removing the Lateral Air Baffle

3. For the lateral air baffles to install correctly, the two retaining springs [1] must be facing upwards. Place the lateral air baffle on the lower embossings and tilt it upwards against the side wall of the work space.

4. Clamp the two retaining springs [1] into the upper embossings.

5. Replace the bottom panel into the embossings and secure it by fastening the two screws at [1].

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Commissioning of floor stand ovens

Installing/Removing air baffles (OGS Series)

The section below describes how to install/remove the bottom plate.

Figure 5-9 Removing the bottom plate

1. Loosen and remove the four (4) screws in the bottom plate and then remove the bottom plate completely.

Start-up

Commissioning of floor stand ovens

Figure 5-10 Removing the left and right support profiles

Loosen and remove the eight (8) screws for the left and right support profiles and then take out the lateral air baffles.

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Start-up Commissioning of floor stand ovens

Figure 5-11 Removing the rear air baffle OGS 400/750

On the OGS 400/750 model remove the ten (10) screws for the rear air baffle and then remove the air baffle.

Commissioning, general

Installing the Shelf Support Brackets

1. Insert the shelf support brackets [3] into the perforations [1] of the support rail and air baffle and tilt them downwards.

2. Make sure that the two vertical elements [2] of the shelf support bracket butt against the support rail and air baffle.

Please note the alternating sequence of round and oblong holes. Be sure to use the correct pair of opposite holes, so the support rails are truly horizontal.

Horizontal position of support rails

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Figure 5-12 Shelf Support Bracket Installation

Start-up

Commissioning of floor stand ovens

Installing the Wire-mesh Shelves

Figure 5-13 Wire-mesh shelf

1. Push the wire-mesh shelf onto the shelf support brackets with the tilt protection devices [1] facing the rear panel of the oven. The tilt protection devices [1] also serve as guides for the wire-mesh shelves.

2. Slightly raise the wire-mesh shelf so that the pull-out stops [2] can slide over the shelf support brackets.

3. Make sure that the shelves and both of their tilt protection devices are free to move over the shelf support brackets.

Levelling the Table-top ovens

1. Position a bubble level onto the center shelf.

2. Manually adjust the levelling feet until the wire-mesh shelf is horizontally aligned in all directions. Perform the adjustment of the levelling feet from left to right and from rear to front.

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Start-up Mains Connection

Mains Connection

The oven has a class I, protection-earthed enclosure. To minimize the risk of electrical shock, use the AC power cord supplied to connect the oven to a correctly installed and protection-earthed power supply source, with the following features in place for each oven:

• T 16 A slow-blow fusing

• B 16 circuit breaker

Electric shock

Contact with live electrical components may cause a lethal electric shock. Before connecting the oven to the power supply, check the power cord and the plug for damage. Do not use damaged cables for connecting the oven to the power supply!

Although several devices may be operated on the same electrical feeder if the rated current is not exceeded, we strongly recommended to provide one feeder with a dedicated upstream circuit breaker per oven to avoid the failure of multiple devices in case of an electrical fault.

Connection to the Power Supply Source

1. Before connecting the oven to the power source, check to see if the power supply voltage corresponds with the specifications on the nameplate on the front of the oven. If the voltage (V) and current (A) ratings given are not as required, do not connect the oven to the power source!

2. Connect the IEC connector to the socket at the rear of the oven.

3. Route the power cord along a path that does not cross exhaust air piping or passageways and aisles. With stacked devices, keep the power cord away from hot spots on the other oven in the stack.

Benefits of using separate electrical feeders

4. Connect the protection-earthed plug of the power cord to a correctly protection-earthed and earth leakage circuit breaker fused power socket.

5. Make sure the power cord is not subjected to tensile or compressive force.

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Make sure that power outlets remain freely accessible at all times!

[1] Sample /ECO Sensor (not used) [2] RS 232 interface [3] Alarm contact (not used) [4] Power socket

Power outlets

Start-up

Mains Connection

Figure 5-14 AC Power Supply Socket

Condensation

When taking the oven into operation for the first time allow some time for stabilization before switching on to avoid condensation forming on live parts.

Switching the Power Line Voltage

The 240 V versions of Heratherm ovens are equipped with a wide-range power supply unit that permits them to be operated on a 240 V or 208 V power source. For optimum heating performance, though, the operating parameters of the built-in controller can be customized in software to obtain the best performance on either line voltage, 240 V or 208 V. This is achieved by entering two specific configuration codes in the Settings -> Configuration dialog explained in “Configuration” on page 7-12.

Table 5-1 Line Voltage Selection Codes

Line Voltage Enter Code

208 V 0208

240 V 0240

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Start-up Connecting the RS-232 Interface

Connecting the RS-232 Interface

Replacement should only be carried out by skilled and authorized qualified personnel of electrotechnology/signal engineering!

The RS-232 data communication interface supports the querying of status information and temperature data from the oven by entering basic commands in a standard terminal window provided by your computer’s operating system. The interconnection requires a standard RS-232 cable with 9-pin connectors and a straight “1:1” pinout without any crossed wires, which is not supplied with the oven.

Users may employ the RS-232 command inventory listed in table 5-2 below for automating process data logging - for example, by embedding these commands in scripts that run on a remote computer.

To avoid overloading and damaging the RS-232 interface check the interfacing parameters against the pin-out description given above and make sure that computer’s interface port works with a signal level of +/5V DC.

Interconnecting the Oven with a Computer

1. Turn the computer off.

2. Route the serial interface cable along a path that does not cross hot exhaust air piping, tables, aisles or passageways. With stacked devices, keep the serial interface cable away from hot spots on the other oven in the stack.

3. Connect one connector of the serial interface cable (cable length, 5 to max. 10 m, not supplied as a standard item) to the socket labeled RS 232 in the electrical interfaces section at the rear of the oven (see “Signal Interfaces and Power Socket” on page 4-12).

4. Connect the second connector to an unused COM 1 /COM 2 or other serial port on the computer.

RS-232 interface compatibility

5. Boot the computer.

6. Launch your standard terminal program and set up the connection with the following parameters:

— 57600 bits per second

— 8 data bits

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Start-up

Connecting the RS-232 Interface

— 1 stop bit

— No Parity

7. Once your terminal indicates that serial communication has been established successfully, enter any of the commands listed in table 5-2 below, depending on what type of information you want to query.

8. Use the following generic command syntax:

?:aaaa:bb::cc<CR> , where:

— ?: identifies the command line as a query;

— aaaa: is the parameter address;

— bb:: is a query, that must be left at „00“ for technical reasons;

— cc is for a command - specific checksum listed in the table below.

— <CR> is for carriage return.

You will receive a response of the following general format:

!:aaaa:bb:XXXXX:cc<CR>

, where:

— !: identifies the line as a response to a query;

— aaaa: is the parameter address entered with the query;

— bb: is the number of payload bytes in hexadecimal code - for example, 1F for the

decimal value 31;

— XXXXXX: is the significant status information queried;

— cc: is a check sum (technically an inverted XOR of all bytes returned, excluding the

check sum bytes and the <CR> character);

— <CR> is for carriage return.

Table 5-2 Terminal Commands for Querying Data

Command Syntax Response Example

Combined Date and Time

?:0010:00::c1 !:0010:11:31.07.10;01:02:23:e2

Date Time

Date only

?:0011:00::c0 !:0011:08:31.07.10:d2

Date

Time only

?:0012:00::c3 !:0012:08:01:02:23:dc

Time

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Start-up Connecting the RS-232 Interface

Table 5-2 Terminal Commands for Querying Data

Command Syntax Response Example

Temperature Set Value (T1); Current Work Space Temperature (T2); Reference Temperature (T3); Sample Sensor Temperature (T4)

?:3010:00::c2 !:3010:1f:+125.00;+124.96;+000.000;+000.00:b0

T1 T2 T3 T4

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Operation

Preparing the Oven

The oven must not be released for operation before all major start-up activities have been completed (see “Start-up” on page 5-1).

Device Check

Prior to starting operation, the following oven components must be checked for their correct function:

• The door seal in the front frame must not be damaged.

• The shelving components must be installed safely.

Disinfecting the Oven’s Work Space

Disinfect the work space according to the operator-specified hygiene guidelines.

Starting Operation

1. Turn the oven on using the control panel.

2. Adjust the temperature set value on the control panel.

3. The temperature controller starts adjusting the work space to the user-specified temperature set value now.

Upon initial installation and subsequent heat-up, this appliance may produce an odor and trace evolution of non-toxic vapor that results from brake-out of the insulation binder. This condition is normal for factory-new products and will diminish with continued operation.

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Operation Starting Operation

To avoid any risk of explosion or fire

• refrain from loading the oven with any of the substances listed in the section “Incorrect Use” on page 1-5

• make sure that the ambient air is free of any solvents

• do not operate the oven in areas with an explosion hazard

4. Load the work space with samples.

Risk of overloading

Overloading may damage the shelves or cause the shelves and/or the oven to tilt when the shelves are being drawn out, ultimately destroying the samples. To avoid overloading the oven or its shelving be sure to observe the sample weight limits specified in see “Technical Data” on page 13-1.

Hot surfaces

After opening the door, this may swing back automatically.

The interior panel of the outer door as well as the surfaces of the outer housing, the shelving and the work space become extremely hot while the oven runs through its heating cycles.

When removing samples from a running or recently completed heating cycle, always wear safety gloves and other appropriate personal protection equipment to avoid burns on hot surfaces!

Proper loading

To ensure sufficient air circulation and uniform heating of the samples, do not use more than 70% of the maximum surface area of the work space. Bulky objects in the work space that dissipate heat may impair heat distribution.

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Handling and Control

Heratherm OGS Series and OMS Series ovens come with a front panel mounted control unit consisting of a multifunctional display, four control buttons, and an on/off button. The four control buttons interact with the display window to let users access all of the user control functions and adjustments of the oven, including - for example, the temperature set value, timer, as well as a variety of other functions.

Under normal operating conditions the display presents user with the work space temperature. The display returns to its default mode upon completion of the adjustments or whenever no entries have been made for a period of 30 seconds.

The graphic below shows the Heratherm OGS 60/100/180/400/750 and Heratherm OMS 60/100/180 control panel with all of its visualization elements and controls.

Figure 7-1 Control Panel for Heratherm OGS Series and OMS Series ovens

The table below contains brief descriptions of the buttons on the control panel (items K1 through K5 in figure 7-1).

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Handling and Control

Table 7-1 Control Buttons

Icon Item Function

K1 Menu/Enter button

First key press: Activates the menu, highlighting the first menu

item with a red border. Second key press: Selects the currently activated menu item (as highlighted by the red border). At the same time, pressing this button enables entries with item D1. Third key press (once a setting has been changed): Confirms a previous entry or selection.

K2 Left button

After the first press of the Menu/Enter button:

- Moves the selection in the menu (see item D2) to the next icon on the left.

Once a menu item has been selected:

- Decreases an adjustable parameter value - for example, the temperature set value in D1. Holding this button depressed for a few seconds changes the selected value in quick run mode.

K3 On/Off button

Holding this button depressed for 2 seconds switches the oven off. The display window goes out, except for the readiness indicator icon in the status display area at item D3. The temperature display pane D1 provides as dimmed readout of the work space temperature, provided that the temperature exceeds 50 °C (122 °F).

Right

button

After the first press of Menu/Enter button:

- Moves the selection in the menu (see item D2) to the next icon on the right.

Once a menu item has been selected:

- Increases an adjustable parameter value - for example, the temperature set value in D1. Holding this button depressed for a few seconds changes the selected value in quick run mode.

Escape

Returns to the previous level of the menu or standard display. Upon exiting from the current menu item the user may be prompted to save any previously made settings.

button

The table below contains brief descriptions of the display features of the control panel (items D1 through D3 in figure 7-1; the identifiers K1 through K4 refer to the buttons shown in that figure).

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Table 7-2 Display Features

Feature Item Function

D1 Display pane showing a permanent readout of the actual tem-

perature in the work space either in °C or °F (depending on the user's preferences, see “Toggling the Temperature Display Unit” on page 7-11). A flashing time entry prompt of the general format (hours:minutes, both with two digits) appears in this place while the user is setting up a timer. Upon occurrence of an error condition, the current error code flashes in this area. Additionally, the red alarm icon at D3 flashes.

D2 Menu bar with iconized representations of adjustable parame-

ters. A red border is used to highlight the current menu item, as selected using the

Right

(K4). Brief descriptions of the individual menu items are

given in table 7-3 below.

Note If a menu item cannot be selected, then the function it represents is not part of the equipment configuration of your unit.

D3 Alarm icon: Upon occurence of an error condition, the red alarm

icon will be illuminated. At the same time the current error code will flash in the display pane D1. The alarm may be acknowl-

(K1) and arrow buttons

Handling and Control

hh:mm

Left

(K2) and

edged by pressing the button.

The table below contains brief descriptions of the menu bar icons (item D2 in figure 7-1).

Table 7-3 Menu Bar Icons

Icon Function

Temperature Set Value

Allows for changing the temperature set value within the permissible temperature range. The set value can be changed by pressing the

Right

(item K2 or K4) and you can, after confirming your changes with

the

Menu/Enter

button (item K1), track the impact on the actual tempera-

Left

and

ture in the display pane at D1.

Instructions: “Temperature Set Value” on page 7-6.

Timer

Allows for having the oven turn on and/or off upon expiry of a user-specified countdown period. When the user enables an “on timer” the oven goes out. A rotating in the

Timer

icon and the illuminated readiness indi-

cator icon in the status display area indicates that the timer is running.

Instructions: “Timer” on page 7-7.

Settings

Invokes a submenu with the following functions:

- Read access to error log

- Calibrating the oven

- Toggling the temperature display unit between °C and °F

- Entering a configuration control code (Instructions:

“Settings” on page 7-9)

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Handling and Control

Table 7-3 Menu Bar Icons

Icon Function

Readiness Indicator: Illuminated when the oven has been switched off

using the On/Off button (item K3 in figure 7-1). Unlike other menu items, this icon cannot be selected.

(Instructions: “Switching the Oven Off / Powering Down” on page 7-5)

Button Inactivity Monitoring

When no button is pressed for more than 30 seconds in any selected menu item, the display exits from the selected screen and returns to default display mode.

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Powering Up

1. Plug the power plug of the oven into a suitable protection-earthed AC power outlet.

In the display window on the front panel the readiness indicator icon (top right item at D3 in figure 7-1 on page 7-1) is illuminated.

2. Keep the On/Off button depressed for two seconds.

An initialization routine will be run after the oven has been powered up. Once initialization has been completed, the display will light up and the current work space temperature will appear in the temperature display pane (item D1 in figure 7-1 on

page 7-1). The oven is ready for use now.

Switching the Oven Off / Powering Down

1. Keep the On/Off button depressed for two seconds.

Handling and Control

Powering Up

The display window goes out, except for the readiness indicator icon (rightmost icon in the top right item at D3 in figure 7-1 on page 7-1) and a residual heat temperature readout in case the work space temperature is still higher than 50 °C/122 °F. The oven is switched off now.

2. If required, unplug the AC power plug to power down the oven completely.

Thermo Scientific Heratherm 7-5

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Handling and Control Temperature Set Value

Temperature Set Value

Heratherm ovens allow for setting the desired work space temperature directly using only a few button presses. After confirming the new temperature set value, you may trace the resulting temperature change in the temperature display pane (item D1 in figure 7-1 on

page 7-1).

You can also use the temperature set value to speed up cool-down subsequent to a drying or heating process. Temperatures as low as ambient +10 °C can be selected, this requires open damper and no additional heat in unit. You can set the oven to a set temperature of 0 °C (32 °F), though, to speed up cool-down. This is achieved in one single step, as described further below.

Table 7-4 Adjusting the Temperature Set Value

Press to activate the menu bar, then use to

select the Temperature icon and press to confirm.

In the temperature display pane, press or to

adjust a new temperature set value, then press to

confirm your settings.

The display returns to its default mode.

The actual temperature measured in the work space

and shown in the temperature display area starts to

change until it reaches the newly adjusted set value.

Table 7-5 Using the Temperature Set Value to Speed Up Cool-Down

At the end of the drying or heating process, press

to activate the menu bar, then use to select the

Temperature icon and press to confirm.

In the temperature display pane, press to lower

the temperature set value to 50 °C/122 °F, then on to

0 °C (32 °F) in one additional step. When the display

reads 0 °C (32 °F), press to confirm your settings.

The display returns to its default mode.

The actual temperature measured in the work space

and shown in the temperature display area starts to

drop, showing the progress of the cool-down process.

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Handling and Control

Timer

The Timer feature from the menu bar enables the user to set a “countdown-type” on or off timer that switches the oven on or off after a preset period of time. Instructions for setting an off timer are given in table 7-6 (see below), while its use as an on timer is described in table 7-7 on page 7-7.

Programming a turn-on time causes the oven to shut down until it is scheduled to restart, while a turn-off time keeps it running before it shuts down at the user-specified time. The timer starts running immediately as soon as the user confirms his or her entries.

Table 7-6 Setting a Countdown-type Off Timer

Press to activate the menu bar, then use to

select the Timer icon and press to confirm.

The word OFF appears in the multifunctional display

pane.

Choose the off timer with .

Set the hours and minutes until the oven is supposed to

shut down by pressing or , then press to

confirm.

The display returns to its default mode.

In the menu bar, the Timer icon is illuminated and a is

rotating on the icon's face.

Table 7-7 Setting a Countdown-type On Timer

Press to activate the menu bar, then use to

select the Timer icon and press to confirm.

The word Off appears in the multifunctional display

pane.

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Handling and Control Timer

Table 7-7 Setting a Countdown-type On Timer

Press to select the On timer option and confirm the

selection with .

Set the hours and minutes until the oven is supposed to

turn on by pressing or , then press to

confirm.

The oven switches off.

Stopping a Timer

Table 7-8 Stopping an Off Timer Before It Expires

The display goes out, the Timer icon is illuminated in

the menu bar with a hand rotating on its face.

Additionally, the readiness indicator icon is illuminated.

Press to activate the menu bar, then use to

select the Timer icon and press to confirm.

Confirm the OFF by pressing , then press to

return to the main menu.

In the menu bar, the Timer icon will go out.

The display returns to its default mode.

Table 7-9 Stopping an On Timer Before It Expires

To cancel a pre-programmed on timer while the oven is

switched off, hold the On/Off button depressed for a

few seconds.

In the menu bar, the Timer icon will go out.

The display returns to its default mode.

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Error Log

Handling and Control

Settings

The Settings menu item opens a submenu populated with various commands for viewing general status information on the unit and setting preferences for the operation of the oven or its display window:

• Read access to error log

• Calibrating the oven

• Toggling the temperature display unit between °C and °F

• Toggling process protection on and off

• Entering a configuration control code

Instructions for using these features are given in the following.

Users calling customer service for support may be asked by the agent to supply information from the error log of the oven.It enables the user to browse through the most recent 22 alarm messages that were caused by hardware or control loop errors. Each error is displayed with an internal error code.

Error codes and instructions for clearing alarm conditions appear in the section “Error Codes” on page 12-1.

Table 7-10 Reading the Error Log

Press to activate the menu bar, then use or

to select the Settings icon and press to

confirm.

The word Err appears in the display pane to indicate

that the error log has been selected.

Use the button to select the first entry in the error

log, numbered E01 (Error 01). This entry represents the

most recently registered error.

After a few seconds, the display pane automatically

switches to the internal error code - for example, 109.

E01 shows the latest fault, E22 shows the oldest fault.

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Handling and Control Settings

Table 7-10 Reading the Error Log

Press to go to the next entry (or to go back to

the previous one).

After reaching the entry numbered 22 the display wraps

and returns to the beginning of the error log, that is, to

entry “number E01.”

To exit from the error log and return to normal display

mode press twice.

The Settings icon in the menu bar will go out.

Calibration

The Settings -> Calibration menu item enables the user to initiate a temperature calibration routine for the built-in temperature sensors and choose whether calibration should be accomplished manually or automatically:

• The Manual option allows for entering an absolute temperature directly, as measured for example, using an external reference sensor.

Calibration Prerequisites

Maintain the ambient conditions within the specified limits of the oven and make sure that the damper is fully closed before launching calibration.

Varying ambient conditions and/or an open damper may impact the result of the calibration routine, which may lead to misadjustment of the controller and unreliable temperature control operation.

Table 7-11 Entering the Calibration Reference Temperature Manually

Press to activate the menu bar, then use or

to select the Settings icon and press to

confirm.

Press to switch to the CAL(ibration) menu item.

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Handling and Control

Table 7-11 Entering the Calibration Reference Temperature Manually

The word USEr appears in the display pane.

Press to confirm the selection.

In the settings dialog that appears, set the temperature

measured with the external reference sensor by using

or and confirm your settings with .

The newly entered value will be stored and used to

calibrate the internal temperature sensors with the

value measured by the reference sensor.

The display returns to its default mode.

The Settings icon in the menu bar will go out.

Settings

Temperature Display Unit

The Settings ->°C / °F menu item allows for toggling the unit used for displaying temperatures between degrees Centigrade and Fahrenheit.

Note This setting does not have any impact on data logging via the RS-232 interface. Any temperature data that is logged to a computer for operational parameter documentation purposes is handed over in °C.

Table 7-12 Toggling the Temperature Display Unit

Press to activate the menu bar, then use or

to select the Settings icon and press to

confirm.

Press to switch to the C - F menu item.

The text C - F is flashing in the display pane.

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Handling and Control Settings

Table 7-12 Toggling the Temperature Display Unit

Press the button.

The currently unused temperature unit °C or °F is

flashing in the display pane. (The factory default setting

is °F.)

Press or to switch to the desired temperature

unit and confirm the selection with .

The temperature unit to the right of the temperature

display field (item D1 in figure 7-1 on page 7-1) has

changed according to your selection.

The display returns to its default mode.

The Settings icon in the menu bar will go out.

Configuration

The Settings -> Configuration menu item enables the user to enter a four-digit code that loads a specific set of operating parameters for the oven - for example, in order to make the voltage selection described in the section “Connecting the RS-232 Interface” on page 5-12 (only for 100 and 180 liter units).

Table 7-13 Entering the Four-digit Code

Press to activate the menu bar, then use or

to select the Settings icon and press to

confirm.

Press to switch to the ConF(iguration) menu item.

The word ConF will be flashing in the multifunctional

display pane.

Press the button.

7-12 Heratherm Thermo Scientific

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Table 7-13 Entering the Four-digit Code

The multifunctional display pane will present a prompt

similar to the example shown at left, with the first digit of

the four-digit configuration code flashing.

Set the first digit of the configuration code using

(or ) and confirm your setting with .

Set the remaining three digits exactly as described

above.

Enter code “1234” to reset the user calibration.

By confirming your entry for the last digit with , the

new configuration is activated immediately.

The display returns to its default mode.

Handling and Control

Settings

The Settings icon in the menu bar will go out.

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Handling and Control Settings

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Page 77

Shut-down

This chapter provides instructions for shutting the oven down for prolonged periods of time, that is, at least for several days in a row.

Shutting the Oven Down

1. Remove the containers with the samples and all accessories from the work space.

2. Turn the oven off using the control panel.

3. Unplug the power cord and secure it against accidental reconnection.

4. Until the oven is shut down, the work space must be continuously ventilated. Leave the door open and secure it against accidental closure.

Thermo Scientific Heratherm 8-1

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Shut-down Shutting the Oven Down

8-2 Heratherm Thermo Scientific

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Cleaning and Disinfection

Cleaning

Some oven components are made of plastics. Solvents may attack plastics. Strong acids or alkaline solutions may cause embrittlement of plastics.

Do not spray cleaning agent onto the control panel and the control box at the rear of the oven. When wiping the oven clean, always make sure that no moisture enters into these components. Wipe the display window down with a slightly dampened cloth, then wipe dry with a rag made of 100% microfiber.

Incompatible cleaners

Moisture-sensitive components

Cleaning exterior surfaces

Remove dirt residues and depositions thoroughly using a solution of lukewarm water and commercial detergent.

Wipe the surfaces clean using a clean cloth and clear water.

Then, wipe the surfaces dry using a clean cloth.

Wipe / Spray Disinfection

The manual wipe and spray disinfection is the following process:

• predisinfection,

• Cleaning as appropriate for the current application.

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Cleaning and Disinfection Wipe / Spray Disinfection

Alcoholic disinfectants!

Disinfectants having an alcohol content of more than 10% may form, in combination with air, easily combustible and explosive gas mixtures.

When using such disinfectants, avoid open flames or exposure to excessive heat during the entire disinfection process!

Use such disinfectants only in adequately ventilated rooms.

After the disinfectant has been allowed to react, wipe the cleaned oven components thoroughly dry.

Observe safety regulations to avoid fire and/or explosion hazard caused by alcohol-containing disinfectants.

Chloride-containing disinfectants!

Chloride-containing disinfectants can corrode stainless steel and galvanized metal surfaces.

Use only disinfectants that do not affect stainless steel and galvanized metal surfaces!

Preparing the manual wipe/spray disinfection

Electric shock

Touching live electrical components may cause a lethal electric shock. Before connecting the oven to the power supply, check the plug and power cord for damage. Do not use damaged cables for connecting the oven to the power source!

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Cleaning and Disinfection

Wipe / Spray Disinfection

Health hazard

The surfaces of the work space may be contaminated. Contact with contaminated cleaning liquids may cause infections. Disinfectants may contain harmful substances.

When cleaning and disinfecting, always observe the safety instructions and hygiene guidelines!

• Wear safety gloves.

• Wear safety goggles.

• Wear mouth and respiratory system protection gear to protect your mucous membranes.

• Observe the safety instructions of the disinfectant’s manufacturer and the hygiene supervisor.

Predisinfection

1. Remove all samples from the work space and store them in a safe place.

2. Spray disinfectant onto the surfaces of the work space and of the accessories or wipe the surfaces clean using disinfectant.

3. Allow time for the disinfectant to act as specified by the manufacturer.

Disinfecting hard-to-reach components

Spray the sensor and other hard-to-reach components with disinfectant!

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Cleaning and Disinfection Wipe / Spray Disinfection

9-4 Heratherm Thermo Scientific

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Maintenance

Regular maintenance is mission-critical to avoid malfunctions due to ageing and wear. Failure to perform maintenance on a regular basis may result in:

• deviations in heating performance

• damage to samples

• loss of control over temperature distribution throughout the work space

Inspections and Checks

To ensure the operational performance and safety of the oven, their functions and the components listed below must be checked at regular intervals.

Regular Checks

• Check the oven for overall cleanliness and remove any debris from previous processes.

• To avoid operation without an appropriate fresh air supply, check the air filter (optional) in the air inlet for contamination.

Monthly Inspection

• Check integrity and proper seating of the door seal.

• Swap air filter cartridge (optional) in air inlet.

• Perform functional check of the control panel and of the oven’s built-in controller.

• Perform electrical safety check in accordance with the relevant national regulations

Functional check

If safety devices were removed or disabled for inspections, the oven must not be operated before the safety devices have been reinstalled and checked for their correct function.

Thermo Scientific Heratherm 10-1

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Maintenance Service Intervals

Service Intervals

Spare Parts and User Modifications

To avoid major malfunctions of the oven and associated safety hazards that may result in death, serious injuries, or damage to the oven and other equipment, use spare parts approved by Thermo Electron LED GmbH only. Third-party spares without approval void the limited warranty.

Do not modify the oven in any way without obtaining the prior written authorization from Thermo Electron LED GmbH. Unauthorized modifications may compromise operational safety and give rise to hazards that may result in death, serious injuries, or damage to the oven and other equipment.

During ongoing operation, the following service work must be performed:

Annual service

Have the oven inspected and serviced by an authorized Technical Service agent.

Thermo Electron LED GmbH offer a product-specific service contract comprising all necessary tests and service work.

Preparing Temperature Calibration

To determine the exact measured value of the oven’s integral temperature sensor, a temperature comparison measurement must be performed every three months. If a major temperature deviation is found during this check, temperature calibration is required. During this process, the temperature controller of the oven is set to the value measured during the temperature comparison measurement.

Service contract

Use a calibrated measuring instrument with an accuracy of < ± 1 °C (1.7 °F) for this test.

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Maintenance

Comparison Measurement Procedure

To minimize temperature variations during the measurement, put the measuring sensor in an isothermal container (such as a bowl filled with glycerol) before placing it in the work space. Use the center of the work space as the reference location for the comparison measurement.

Isothermal Container

Do not use a container filled with water as an isothermal container because the evaporation of water will result in a lower temperature reading.

Excessive Work Space Temperatures

Excessive work space temperatures subsequent to a calibration run can be reduced by leaving the door open for approx. 30 seconds.

Comparison Measurement Procedure

1. Turn the oven on using the power switch.

2. Set the temperature set value and allow the oven to stabilize. This may take several hours.

3. Place the measuring device in the center area of the work space. Alternatively, a temperature sensor may be positioned in this location. Route the connecting cable between the glass panel and the interior tank.

4. Close the doors.

5. Wait until the temperature value displayed on the measuring instrument has stabilized.

6. Use the temperature reading from the measuring device to calibrate temperature control manually, as explained “Entering the Calibration Reference Temperature Manually” on page 7-11.

Temperature Calibration Procedure

For detailed instructions on how to perform a manual temperature calibration, please refer to the instructions in the section “Calibration” on page 7-11.

Excessive Work Space Temperatures

Excessive work space temperatures subsequent to a calibration run can be reduced by leaving the door open for approx. 30 seconds.

Thermo Scientific Heratherm 10-3

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Maintenance Replacing the Door Seal

Replacing the Door Seal

The door seal of the outer door is located in the retaining slot. The door seal should be inspected for any signs embrittlement every six months when the oven has been used at maximum temperatures of up to 250 °C / 482 °F.

No tools are required to replace the seal.

Figure 10-1 Door seal replacement (example showing OMH Series oven)

1. Pull the seal out of the guide slot.

2. Starting on the hinge side of the door, position the seam of the new seal at the location indicated by the arrow in figure 10-1 above.

3. Gently press the seal into the slot, working around the circumference of the door. In doing so, be careful not to stretch the seal.

4. Make sure that the retaining rail taper is positioned correctly in the slot and that the seal is flush with the door frame.

Replacing the Power Cord

When the device’s power cord is damaged, it must be replaced with an original spare part. Using a standard power cord with a lower temperature withstand class is prohibited.

Returns for Repair

Prior to returning any materials, please contact our Customer Service Department for a “Return Materials Authorization” number (RMA).

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Material returned without an RMA number will be refused.

Contamination hazard

The oven may have been used for treating and processing infectious substances, which may have caused contamination of the oven and its components. Prior to return shipment, it is therefore mandatory that all oven components be properly decontaminated..

• Clean the oven components thoroughly, then disinfect or decontaminate them (depending on application).

• Fill in and attach a safety declaration with details on decontamination activities performed to the items that are to be repaired.

Maintenance

Returns for Repair

Thermo Scientific Heratherm 10-5

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Maintenance Returns for Repair

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Disposal

The oven may have been used for treating and processing infectious substances, which may have caused contamination of the oven and its components. Prior to disposal, it is therefore mandatory that all oven components be properly decontaminated.

Clean the oven components thoroughly, then disinfect or decontaminate them (depending on application).

Attach a declaration of decontamination with details on decontamination activities performed to the items that are to be disposed of.

Overview of Materials Used

Contamination hazard

Component Material

Thermal insulation components Glass wool

Printed circuit boards Coated electrical components contain

various plastics materials. Components mounted on circuit boards containing epoxy resin bonder.

Plastic components, general see material labelling

Exterior housing Galvanized steel sheet, painted

Oven rear panel Galvanized steel sheet

Outer door Galvanized steel sheet, painted

Door inner panel OMS and OGS: stainless steel 1.4016

Control panel and display window protective foil

Heater Stainless steel-sheathed resistance

Polyethylene

heater wires

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Disposal Overview of Materials Used

Component Material

Interior containers, installed components and shelves

Stainless steel 1.4016 and galvanized steel; shelves are chrome-plated

Door frame seal Silicone

Fan wheel Stainless steel 1.4016 (OMS Series only)

Cables Plastic-sheathed stranded copper wire

Packaging Corrugated board, polyethylene film, and

styrofoam, chemically untreated wood

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Error Codes

Table 12-1 below lists the error messages that may appear in the control panel display window

(see “Error Log” on page 7-9) and provides instructions for clearing such alarms.

Table 12-1 Heratherm Oven Error Codes

Error Message & Code Root Cause Alarm Response Alarm Clearing Instructions

Display Error (E002) Display communication

error. The built-in controller was unable to restore communication with the control panel.

Mirrored Parameter Loaded (E003)

Factory Parameter Loaded (E004)

Default Parameter Loaded (E005)

Power Down Error (E007)

The controller was unable to read the user-specific settings and had to resort to an emergency parameter set held in mirrored storage.

The controller was unable to read the mirrored parameter set and had to resort to factory-preset parameters.

The controller was unable to read the factory-preset parameters.and had to resort to default settings

Power has been cut off (power outage) while the device was running.

Audible alarm activated, message shown on display. Reset after 30 s.

Fallback to mirrored parameter storage. Device continues to run without loss of functionality, including user-specific settings.

Fallback to factory-preset parameters. Audible alarm activated, message shown on display. User-specific settings may be lost - for example, the temperature display unit preference, or user programs.

Fallback to default parameters. User-specific settings will be unavailable. Audible alarm activated, message shown on display. The device is completely inoperative.

Audible alarm activated, message shown on display.

Power cycle the device by unplugging, then reconnecting the power cord. If this doesn't solve the problem, call service.

Check the latest settings, for example the set value.

Acknowledge by pressing

Re-enter cus-

tomer-specific settings.

Call service.

Check the power supply. Power up then device, then acknowledge the alarm by

pressing .

Fan Error (E009) (OMS Series only)

Config Error (E012) General device configura-

Thermo Scientific Heratherm 12-1

Fan speed out of range. Audible alarm activated,

message shown on display. Heater disabled by controller.

Audible alarm activated,

tion error.

message shown on display. The device is completely inoperative.

Acknowledge by pressing

. If this doesn't solve

the problem, call service.

Call service.

Page 92

Error Codes

Table 12-1 Heratherm Oven Error Codes

Error Message & Code Root Cause Alarm Response Alarm Clearing Instructions

OTP error (E013) Klixon contact not closed. Overtemperature Protec-

tion fault. Audible alarm activated, message shown on display. Bridging across Klixon contact has failed.

Incorrect voltage (E014)

Sensor Error (E100) Process sensor damaged.

Temperature Too High (E101)

Temperature Not Plausible (E103)

The applied voltage is too high or too low.

The actual measured value is out of range.

Actual measured value exceeds permissible range. The triac in the heater circuit may be defective.

The difference between the control and reference sensors exceeds the maximum permissible deviation, rendering the measurement implausible.

Audible alarm activated, error message shown on display.

Audible alarm activated, message shown on display. Control transferred to reference sensor. If both sensors are defective, disable all control circuits.

Process protection activated, control continues on set value. Audible alarm activated, E101 message shown on display.

Device uses the sensor that indicates the higher temperature for servo control. Audible alarm activated, message shown on display. Error can be acknowledged and doesn’t reset.

Restart the device. If this doesn't solve the problem, call service.

Apply the correct voltage as indicated on the nameplate and acknowledge the error.

Call service.

If the problem does not go away, call service.

Calibration Value Too High (E104))

Calibration Value Too low (E105)

Constant Sensor Signal (E106)

Constant Reference Sensor Signal (E107)

The calibration reference value calculated on the basis of the user input falls short of the upper limit for calibration references.

The calibration reference value calculated on the basis of the user input exceeds the lower limit for calibration references.

None of the decimal places of the A/D-converter output for the process sensor has changed over a specific time period.

None of the decimal places of the A/D-converter output for the reference sensor has changed over a specific time period.

Fallback to previous calibration reference. Audible alarm activated, message shown on display.

Fall back to previous calibration reference. Audible alarm activated, message shown on display.

Control transferred to reference sensor, audible alarm activated, message shown on display. If both sensors are defective, all control circuits will be disabled.

Control continues on process sensor, audible alarm activated, message shown on display. If both sensors are defective, all control circuits will be disabled.

Check the external reference sensor for proper function and replace, if necessary. If this does not solve the problem, call service.

Call service.

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Error Codes

Table 12-1 Heratherm Oven Error Codes

Error Message & Code Root Cause Alarm Response Alarm Clearing Instructions

Heating Relay Error (E109)

Heating Triac Error (E110)

Temperature Too High (E111)

The voltage measurement has indicated a defect in the heater circuit relay.

The voltage measurement has indicated a defect in the triac

The actual measured value exceeds the upper limit of the permissible error range. May occur when the user lowers the set point temperature on a hot oven but leaves the door closed.

Device completely inoperative, audible alarm activated, message shown on display.

Audible alarm activated, message shown on display. Overheat protection activated to prevent destruction of the samples. Audible alarm returns upon acknowledgement.

Audible alarm activated, message shown on display. Heater turned off until upper limit of hysteresis is recovered. Servo control operations continue. Alarm can be acknowledged, and goes away when the difference between the actual and set values ceases to exist. Note: This error does not indicate a defective triac.

Be sure to pull the power plug and disconnect the device from the AC mains. Call service.

Switch off the device and call service.

Open the door to speed up cool-down. Check whether the device was loaded with a hot object, if so, remove. Ensure that the equipment was operated with at least one perforated shelve and with the door not opened longer than 10 min. If this doesn’t solve the problem, call service.

Sensor Error (E112) Unsuitable sample load or

possible damage to reference sensor. The measured actual value is out of range.

Audible alarm activated, message shown on display. Control continues on process sensor. If both sensors are defective, all

Check whether device was loaded with an unsuitable object. If error does not go away, call service.

control circuits will be disabled.

Sensor Error (E113) Sample sensor damaged.

The actual measured value is out of range.

ADC Error (E114) A/D converter does not

supply a plausible output. Measurement across reference resistor R403 has

Audible alarm activated, message shown on display.

Audible alarm activated, message shown on display. All control circuits disabled.

Call service.

Call Service.

failed. ADC converter may be defective.

Watchdog error (E115) Watchdog test failed on

power-up.

Audible alarm activated, message shown on dis-

Call service.

play.

Clearing should mute the audible alarm, de-energize the alarm relay, and clear the message from the control panel display.

Thermo Scientific Heratherm 12-3

Page 94

Error Codes

12-4 Heratherm Thermo Scientific

Page 95

Technical Data

The technical data are valid only for an empty device equipped with three shelves, a spray-painted outer enclosure and a power line voltage 120 V/60 Hz (Table 13-1) and 208-240 V/60 Hz (Table 13-2). Options may have an impact on the specified performance.

Table 13-1 Technical Data - OGS and OMS Series / 120 V - Table-top ovens

Parameter Unit OGS 60 OGS 100 OGS 180 OMS 60 OMS 100 OMS 180

Process

Work Space Atmosphere

Min.

°C/°F

50/122

Max.

Temperature deviation from set value at 150 °C (302 °F), spatial. Max. value/ Typical. value

Temperature deviation from set value at 150 °C (302 °F), over time. Max. value/ Typical. value

Heat-up time (work space unoccupied, from 25 °C (77 °F) to 98% of set temperature of 150 °C/ 302 °F). Max. value/ Typical. value

Recovery time (work space unoccupied, door open for 30 s, to set temperature). Max. value/ Typical. value

Heat dissipation to environment (at set temperature of 150 °C (302 °F) and room temperature of 25 °C/ 77 °F)

Max. air change at 150 °C/302 °F

°C/°F

min 25/15 25/19 25/21 20/17 20/12 20/15

min 9/8 9/8 9/8 5/3 5/3 5/4

250/482

K ±4.5 / ±4.0 ±4.5 / ±4.0 ±4.5 / ±4.0 ±3.7 / ±3.3 ±3.0 / ±2.5 ±3.5 / ±3.0

K ±0.4 ±0.4 ±0.5 ±0.3 ±0.3 ±0.3

W 194±10% 261±10% 320±10% 316±10% 459±10% 513±10%

-1

19 16 18 33 61 31

250/482

Overall dimensions

Height mm/in 720/

28.3

Width

Thermo Scientific Heratherm 13-1

mm/in 530/

20.8

820/

32.3

640/

25.2

920/

36.2

640/

25.2

720/

28.3

530/

20.8

820/

32.3

640/

25.2

920/

36.2

640/

25.2

Page 96

Technical Data

Table 13-1 Technical Data - OGS and OMS Series / 120 V - Table-top ovens

Parameter Unit OGS 60 OGS 100 OGS 180 OMS 60 OMS 100 OMS 180

Depth mm/in 565/

25.2

Overall weight kg/lbs 42/93 53/117 66/146 42/93 53/117 66/146

Loading capacity

Loading capacity per shelf kg/lbs 25/55 25/55

Max. overall loading capacity per device

Electrical data

Power rating W 1730 1680 1680 1440 1660 1660

Maximum current A 14.4 14.0 14.0 12,0 13.8 13.8

Earthing system (e.g. 1/N/PE)

Power line frequency Hz 60 60 60 60

Power line voltage +/- 10 % V 120 120 120 120

IP protection system IP 20 IP 20

Protection class I I

Overvoltage category to IEC 60364-4-443

Device fusing, building side

Device fusing, on PCB A 2 x 16 2 x 16

kg/lbs 50/110 50/110 75/165 50/110 50/110 75/165

1/N/PE 1/N/PE 1/N/PE 1/N/PE 1/N/PE 1/N/PE

A 16 16

565/

25.2

II II

738/

29.1

565/

25.2

565/

25.2

738/

29.1

Environmental conditions

Min. ambient temperature °C/°F 18/65 18/65

Max. ambient temperature °C/°F 32/90 32/90

Max. humidity in service, non condensing

Min. storage temperature °C/°F 20/68 20/68

Max. storage temperature °C/°F 60/140 60/140

Max. humidity in storage, non condensing

Post-transport acclimation time

Noise level dB(A) no inherent noise 45 52 52

Pollution degree to IEC EN 61010-1

Site conditions

Maximum altitude above sea level

Minimum side clearance mm/in 50/2 50/2

Minimum front clearance mm/in 590 / 23.2 690 / 27.2 814 / 32 590 / 23.2 690 / 27.2 814 / 32

% r.F./ % r.H.

h 2 2

m/y ASL 2000/2187 2000/2187

80, non condensing 80, non condensing

90, non condensing 90, non condensing

2 2

Minimum back wall clearance

13-2 Heratherm Thermo Scientific

mm/in 80/3.2 80/3.2

Page 97

Technical Data

Table 13-1 Technical Data - OGS and OMS Series / 120 V - Table-top ovens

Parameter Unit OGS 60 OGS 100 OGS 180 OMS 60 OMS 100 OMS 180

Minimum bottom

mm/in 200/8 200/8

clearance

Minimum top clearance mm/in 300/12 300/12

Temperatures as low as ambient +10 °C can be selected, this requires open damper and no additional heat

in unit.

Table 13-2 Technical Data - OGS and OMS Series / 208/240 V - Table-top ovens

Parameter Unit OGS 100 OGS 180 OMS 100 OMS 180

Process

Work Space Atmosphere

Min.

Max.

Temperature deviation from set value at 150 °C (302 °F), spatial. Max. value/Typical. value

Temperature deviation from set value at 150 °C (302 °F), over time. Max. value/ Typical. value

Heat-up time (work space unoccupied, from 25 °C (77 °F) to 98% of set temperature of 150 °C/ 302 °F).

Recovery time (work space unoccupied, door open for 30 s, to set temperature). Max. value/ Typical. value

°C/°F

50/122

250/482

50/122

250/482

50/122

250/482

50/122

250/482

K ±4.5 / ±4.0 ±4.5 / ±4.0 ±3.0 / ±2.5 ±3.5 / ±3.0

K ±0.4 ±0.5 / ±0.4 ±0.3 ±0.3

min 25 25 20 20

min 10/6 9/6 7/6 8/6

Heat dissipation to

W 261±10% 320±10% 459±10% 513±10% environment (at set temperature of 150 °C (302 °F) and room temperature of 25 °C/ 77 °F)

Max. air change at

-1

16 18 61 31

150 °C/302 °F

Overall dimensions

Height mm/in 820/

32.3

Width

mm/in 640/

25.2

Depth mm/in 565/

25.2

920/

36.2

640/

25.2

738/

29.1

820/

32.3

640/

25.2

565/

25.2

920/

36.2

640/

25.2

738/

29.1

Overall weight kg/lbs 53/117 66/146 53/117 66/146

Loading capacity

Thermo Scientific Heratherm 13-3

Page 98

Technical Data

Table 13-2 Technical Data - OGS and OMS Series / 208/240 V - Table-top ovens

Parameter Unit OGS 100 OGS 180 OMS 100 OMS 180

Loading capacity per shelf kg/lbs 25/55 25/55

Max. overall loading capacity per device

Electrical data

Power rating W 3360 3360 3360 3360

Maximum current A 14,0 14,0 14,0 14,0

Earthing system (e.g. 1/N/PE)

Power line frequency Hz 60 60

Power line voltage +/- 10 %

IP protection system IP 20 IP 20

Protection class I I

Overvoltage category to IEC 60364-4-443

Device fusing, building side

Device fusing, on PCB A 2 x 16 2 x 16

Environmental conditions

Min. ambient temperature °C/°F 18/65 18/65

Max. ambient temperature °C/°F 32/90 32/90

kg/lbs 50/110 75/165 50/110 75/165

1/N/PE 1/N/PE 1/N/PE 1/N/PE

V 208/240 208/240

II II

A 16 16

Max. humidity in service, non condensing

Min. storage temperature °C/°F 20/68 20/68

Max. storage temperature °C/°F 60/140 60/140

Max. humidity in storage, non condensing

Post-transport acclimation time

Noise level dB(A) no inherent noise 52 52

Pollution degree to IEC EN 61010-1

Site conditions

Maximum altitude above sea level

Minimum side clearance mm/in 50/2 50/2

Minimum front clearance mm/in 690 / 27.2 814 / 32 690 / 27.2 814 / 32

Minimum back wall clearance

Minimum bottom clearance

Minimum top clearance mm/in 300/12 300/12

% r.F./ % r.H.

h 2 2

m/y ASL 2000/2187 2000/2187

mm/in 80/3.2 80/3.2

mm/in 200/8 200/8

80, on condensing 80, non condensing

90, non condensing 90, non condensing

2 2

13-4 Heratherm Thermo Scientific

Page 99

Technical Data

Temperatures as low as ambient +10 °C can be selected, this requires open damper and no additional heat

in unit.

Table 13-3Technical Data - OGS Series - Floor stand ovens

Parameter Unit OGS 400 OGS 750 Process

Work Space Atmosphere Min.

°C/°F

50 °C/122 °F

Max. Temperature deviation from set value at

(302 °F)

Max. value/Typical value Temperature deviation from set value at

(302 °F)

Heat-up time (work space unoccupied, from 25 °C (77 °F) to 98% of set temperature of 150 °C (302 °F))

Recovery time (work space unoccupied, door open for 30 s, to set temperature) Max. value/Typical value

Heat dissipation to environment (at set temperature of 150 °C (302 °F) and room temperature of 25 °C/77 °F)

Max. air changes at 150 °C (302 °F)

Overall dimensions

Height (with casters)

Width

, spatial.

, over time

150 °C

°C/°F

250 °C/482 °F

K ±3.0 /±3.0 ±4.0/±3.0

K ±0.5

min 35/31 60/53

min <8/<6 <9/<7

W 520 ±10% 795 ±10%

-1

20 8

mm/in 1655/

65.2

mm/in 755/

29.7

1215/

47.8

Depth

mm/in 770/

30.3

Overall weight

Loading capacity per shelf Max. overall loading capacity per device

Electrical data

Power rating Max. Current Earthing system (e.g. 1/N/PE) Power line frequency Power line voltage +/- 10 % IP protection system Protection class

Thermo Scientific Heratherm 13-5

kg/lbs 136/300 182/401 kg/lbs 40/88 kg/lbs 75/165 150/330

W 2640 3240

A 11.0 13.5

1/N/PE 1/N/PE

Hz 60

V 208-240

IP 20

Page 100

Technical Data

Table 13-3 Technical Data - OGS Series - Floor stand ovens

Parameter Unit OGS 400 OGS 750

Overvoltage category as per IEC 60364-4-443

Device fusing, building side

Device fusing, on PCB

Environmental conditions

Min. ambient temperature

Max. ambient temperature

Max. humidity in service, non condensing

Min. storage temperature

Max. storage temperature

Max. humidity in storage, non condensing

Post-transport acclimation time

Noise level

Degree of pollution as per IEC EN 61010-1

Site conditions

Maximum altitude above sea level

A 16

A 2 x 16

°C/°F 18/65

°C/°F 32/90

% r.F./

80,

non condensing

% r.H.

°C/°F 20/68

°C/°F 60/140

% r.F./

90,

non condensing

% r.H.

h 2

dB(A)

m/y ASL

no inherent noise

2000/2187

Minimum side clearance

Minimum front clearance

Minimum back wall clearance

Minimum top clearance

Temperatures as low as ambient +10 °C can be selected, this requires open damper and no additional heat

in unit.

mm/in 120/4.7

mm/in 810 /31.9 670 / 26.4

mm/in 120/5.9

mm/in 200/8

13-6 Heratherm Thermo Scientific

Thermo Scientific 51029327 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual