Laboratory Incubators

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Laboratory Incubators

We can supply several brands of laboratory incubators covering the wide range of different laboratory incubators listed below:

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Call Progen Scientific to discuss your requirements on 020 85422283 Click here to make an enquiry online about laboratory incubators.


Laboratory Incubators.Things you should consider when purchasing laboratory incubators:


1. Type. What type of laboratory incubator do I require (see detailed list below)?

2. Incubator or oven? Laboratory incubators have maximum temperatures of up to 80oC or 100oC (ovens usually have maximum temperature of 200oC - 300oC with high temperature versions up to 600oC)

3. What is the lowest temperature I may use the incubator at? Temperature ranges are usually specified as ranging from ambient (room temperature) or ambient +?oC (e.g. ambient +5oC for gravity convection incubators or ambient +8oC for incubators with fan assisted convection) to their maximum. If you need to run an incubator below say 30oC and the location gets warm then you should consider whether you need a cooled / refrigerated incubator.

4. Internal volume. When looking at the size you require and comparing different brands of laboratory incubators don't just compare the listed capacity in litres. Different manufacturers describe the internal litre capacity differently and it can be misleading. Some state the total internal volume while others state the theoretical 'available' volume i.e. not including a certain distance from the sides in the capacity volume as advisable to leave space around incubator for air convection.

When comparing incubators it is better to compare the internal dimensions (W x D x H) rather then the stated litre capacity. Also consider the external dimensions (lab. space available and enough access) and whether bench or floor standing

Laboratory Incubators.5. Aluminium clad or stainless steel interior. Some users prefer stainless steel as easier to clean and doesn't oxidise / corrode as easily as aluminium

6. Gravity or fan forced convection. The choice normally depends on whether temperature uniformity in the laboratory incubators are important or not. Fan forced circulation gives better temperature uniformity in the cabinet especially the larger the incubator, but some people do not want their samples dried out so would choose gravity convection.

NOTE: Fan assisted convection incubators usually have a higher lowest temperature as the fan motor can cause some heating of the chamber (e.g. lowest temperature may be ambient +8oC whereas a gravity convection incubator may be ambient +8oC).

Laboratory Incubators.7. Digital or analogue control / display: Analogue control is normally by a numbered dial (e.g. numbered 1 to 10 or in approx. oC) and needs a thermometer or dial thermometer to display the actual temperature. The control is usually hydrostatic and is prone to overshoot before stabilising on the set temperature.

Digital control means the temperature is set and displayed via a digital LCD controller, usually described as digital microprocessor or digital PID controller. The PID controller is more accurate as it adjusts the rate of heating down gradually as the set temperature is approached thereby avoiding temperature overshoot.

8. Shelves: Check the number of shelves provided and number of possible shelf positions (extra shelves are usually available if required).

9. Inner glass door: Enables outer solid door to be opened and contents viewed without disturbing incubator atmosphere / temperature stability

10. Timer or programmable

Laboratory Incubators.11. Safety features: Depending on the laboratory incubators there should be a minimum of an independent, manually adjustable high temperature cut-out dial (set temperature a few oC above the incubator set-point so that if a problem occurs and the cabinet overheats it will cut out at the cut-out temperature rather then hit its maximum). Some laboratory incubators have high temperature (or low temperature) alarms or connection possible to an external alarm system

9. RS232 interface, chart recorders, validation, etc. for recording temperature recording, GLP, etc.

Types of laboratory incubators:


Standard incubators (gravity or fan assisted convection): Set temperature from ambient or ambient +?oC to maximum of 80oC or 100oC

Cooled incubators : For working at temperatures close to or below ambient temperature

Laboratory Incubators.Humidity incubators (environmental chambers): As well as control of temperature they can also control the chamber humidity. The more accurate control of humidity is obtained by units that remove the humidity by a refrigeration system rather than by direct heating.

NOTE: Check the individual product specifications and there is a naturally available 'envelope' of combinations of temperature and humidity (i.e. some combinations are not physically possible)

CO2 (carbon dioxide) incubators : Used in biological applications to maintain a certain % carbon dioxide (e.g. 5%) in the incubator, from an attached gas cylinder, as well as temperature control. The CO2 concentration is monitored by either a thermal conductivity (TCD) sensor or IR (infra-red) sensor. IR sensors are much more expensive to replace than TCD sensors. Some users require high humidity in the chamber which is usually obtained by using a tray of water which evaporates giving >95% RH (relative humidity). A more accurate, controllable humidity content is also available with some brands if required.

Options available include: HEPA filtered air or HEPA filter on gas inlet; copper lined interior to reduce growth of bugs; control of other gases (e.g. oxygen, nitrogen); inner glass door(s); choice of cabinet sterilisation methods such as UV (ultra-violet) lamp, 90oC moist air sterilisation or 180oC high temperature sterilisation; automatic CO2 bottle change-over (i.e. when currently used bottle is near empty then a new botle atuomatically comes on line).

Laboratory Incubators. Shaking incubators : Used to shake flasks, etc. orbitally (sometimes reciprocally) in a temperature controlled atmosphere. They can be bench-top or larger floor standing models and either above ambient or refrigerated. A range of accessories are available to attach to the shaking tray(s) to hold different vessels.

Hybridisation incubators (also known as hybridisation ovens): Incubators with integral rotisseries to hold different sizes of hybridisation bottles (cylindrical with screw caps) and rotate them at a set speed to enable hybridisation of the contents (molecular biology). They can also have rocking shakers and shelves as accessories / standard fittings.

Click here to view our range of Laboratory Incubators

Call... Enquire...
Call Progen Scientific to discuss your requirements on 020 85422283 Click here to make an enquiry online about laboratory incubators.


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