10 LITRE LABORATORY OVEN AND INCUBATOR

CONSTRUCTION

The inner working chamber is constructed of satin finish stainless steel with three shelf positions. Two chrome plated perforated trays are supplied.
The door is hinged on the left side with positive catch to keep it closed against a silicon rubber seal. The incubator has an acrylic inner door fitted.

A vent tube is situated in the top of the oven. The outer body is constructed of zinc seal steel, finished with light cream enamel.

OPTIONS

- Solid state analogue or digital control
- Fan forced

GRAVITY AND FORCED CONVECTION OVENS

EXTERIOR
Attractive gloss finish baked enamel.

OUTER DOOR
Well supported with robust hinges to give long life and eliminate sag. The door seals against a silicon rubber extrusion with a positive chrome plated finger tip release door catch.

CONTROL PANEL
A solid state digital controller with touch switch temperature selection working in conjunction with a zero switching solid state relay. A push button reset overheat thermostat is mounted on the control panel.

INSULATION
65 mm thick is high grade fibre glass insulation is used for temperature up to 300C.

INTERIOR
All stainless steel.

SHELVES
Chrome plated straight wire type give maximum strength and ventilation.

FORCED CONVECTION
Fan motor, rubber mounted in bottom cabinet for very quiet running.

VENTILATION
An adjustable ventilation port is mounted on top of oven.

OVEN DATA

Standard units 240V 50Hz AC.

GRAVITY CONVECTION OVENS
Gravity convection type ovens have spiral type elements distributed in heating chamber for even heating. This type of oven can be supplied with stirrer (mechanical convection) or as forced convection and can be fitted with snap action thermostat, solid state analogue or digital indicator temperature controllers.

FORCED CONVECTION OVENS
Typical instrument temperature fluctuation ±0.5°C at 100°C.
Typical temperature variation ±2°C at 100°C.

TEMPERATURE FLUCTUATION
The short term change in temperature at any position in the oven working space.

TEMPERATURE VARIATION
The difference between the temperature at the centre of the oven and at any other position in the working chamber.

A range of sizes and types are available to suit the varying requirements of individual users. Higher temperature operating standards can be met and certified tests can be made if required. Heavy duty industrial ovens are made to customer specifications.

MINIMUM FREE SPACE OVEN

This oven conforms to the requirements of BS 1016 and has a working chamber of 274 x 158 x 28 mm.

The working chamber is contained in an outer chamber, into which are fitted the heating elements.

The sensing element for the control systems is attached to the outside of the working chamber.

The temperature controller switches power to the elements via a solid state relay. Maximum continuous working temperature is 200°C. Temperature fluctuation (under normal conditions) is within 0.25°C. This design gives extremely uniform conditions within the oven, very close temperature control and a high degree of reproducibility of results.

Oven temperature can be checked by insertion of a thermometer into the pocket at the back of the oven, which protrudes into the centre of the chamber. The door is fitted with a silicone rubber gasket, ensuring adequate gas tightness, and is held in place by two captive bolts.

At the top rear of the case is the nitrogen inlet. This is connected by a copper tube passing through the heating chamber to the oven proper, ensuring that the nitrogen is at the correct temperature before being admitted to the oven. The gas outlet is from the top front of the working chamber.

The desiccator for use with the oven consists of a welded steel case with a thick bottom to give high heat capacity and reduce cooling time. Inlet and outlet tubes are provided at the front and rear to allow for the passage of nitrogen.

OVENS

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