OVENS

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.

Oven - Cat. No. 24G Incubator - Cat. No. 14G
Internal Dimensions (mm) 200H x 255W x 200D 200H x 255W x 200D
External Dimensions (mm) 390H x 362W x 300D 390H x 362W x 300D
Rating 240V x 400W x 50Hz 240V x 200W x 50Hz
Temperature Ambient to 150°C Ambient to 70°C
Temperature Fluctuation ±2°C at 100°C ±0.3°C at 37°C
Temperature Control Thermostat Thermostat

OPTIONS

- Solid state Analog 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 conjuction 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

 

Model No.
Temperature Range
Internal Dimensions HxWxD cm
External Dimensions HxWxD
Capacity Litres
Number Shelf Positions
Number Shelves Supplied
Power Rating (Watts)
24
40-150°C
20x25x20
40x36x30
10
3
2
400
25
40-200°C
35x30x30
75x49x45
31.5
3
2
1000
26
40-200°C
45x38x35
85x57x50
60
4
2
1500
27
40-200°C
60x50x50
98x69x65
150
5
3
2000
28
40-200°C
90x60x50
129x79x65
270
6
4
3000
29
40-200°C
120x60x60
156x79x74
432
7
4
4500
35
40-300°C
35x30x30
75x49x45
31.5
3
2
1300
36
40-300°C
45x38x35
85x57x50
60
4
2
1750
37
40-300°C
60x50x50
98x69x65
150
5
3
2800
38
40-300°C
90x60x50
129x79x65
270
6
4
3500

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 analog 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 continous 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 reproductibility 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.

Dimensions overall: 373H x 300W x 380D mm
Ratings: 240v 1250W

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.