Laboratory Ovens

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Laboratory Ovens

We supply several brands of laboratory ovens covering a range of different oven types listed below.

 

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

Things you should consider when purchasing laboratory ovens:

 

Laboratory Ovens.1. Type. What type of laboratory oven do I require (see list below)?

2. Incubator or oven? Incubators have maximum temperatures of up to 80oC or 100oC (laboratory 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 laboratory ovens at? This depends on the brand. Some are from ambient to their maximum and some from, say 100oC, to their maximum.

4. Internal volume. When looking at the size you require and comparing different brands of laboratory ovens 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 oven for air convection.

When comparing laboratory ovens 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 Ovens.5. Aluminium clad or stainless steel interior

6. Gravity or fan forced convection. The choice normally depends on whether temperature uniformity in the oven is important or not. Fan forced circulation gives better temperature uniformity in the cabinet especially in the larger laboratory ovens.

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. Vent: Enables any fumes, etc. to be vented outside the chamber and room

10. Timer or programmable (including ramping / dwells for temperature profiling)

11. Safety features: Depending on the laboratory ovens there should be a minimum of an independent, manually adjustable high temperature cut-out dial (set temperature a several oC above the oven 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 ovens 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 ovens:

 

Laboratory Ovens.Standard ovens (gravity or fan assisted convection): Set temperature from ambient or above to maximum 200oC to 300oC (depending on the model)

High temperature ovens : Temperatures available up to 400oC, 500oC or 600oC with various controllers available including programmable for temperature profiling, etc

Hybridisation ovens (or hybridisation incubators): Laboratory Ovens 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.

Oven sterilisers (or incubator sterilisers): Can be used as standard incubator or at higher temperature to sterilise instruments, etc.

Click here to view our range of Laboratory Ovens

 

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

 
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