Laboratory Heating Ovens

Construction :
Double wall construction, interior fabricated of stainless steel(S.S.304). Exterior of corrosion resistant galvanized sheet, finished in powder coated epoxy paint. Full size glass inner door to inspect samples without affecting the chamber temp. Outer double walled metal door with magnetic gasket and lock. Unit mounted on castor wheels for easy movement.

Insulation :
70mm polyurethene insulation (PUF) to ensure better insulation and less leakage of temperature or RH from inner body to the surroundings.

Air Circulation :
Temperature is maintained by a quiet running blower circulation air through out the chamber. Forced air circulated vertically down and re circulated through out the chamber for uniform temperature and humidity.

Humidity :
Humidity created by steam injection method. The boiler tank is fitted in the back side of the chamber for better servicing, Electro magnetic switch for controlling the wet heater from burning off if water level is not adequate. Float valve provided to control water level in the boiler tank.

Heating & Cooling System :
Long lasting SS tubular heaters used as heating element. The stainless steel fins provided to ensure better heat transfer. Hermetically sealed compressor CFC free compressor (134 A gas) coupled with evaporation coil and condensor.

Trays : Removable perforated trays provided made of S.S. wire mesh

Control : Microprocessor based temp and direct RH digital PID controller. Humidity directly measured in % RH by electronic sensor.

Safety Features :

High temperature safety cut off, Low water level boiler cut off. Electrical overload cut off. Time delay for compressor switch ON. Electrical circuit breaker

Temp. Range	10 to 70°C, Accuracy +/- 0.5°C
Humidity Range	40% RH to 95% RH Accuracy +/- 3% RH

Chamber size	Cu.	Trays
H W D	Ft.
45 X 45 X 45	3	2
70 X 50 X 50	6	3
90 X 60 X 60	12	3
125X 60 X 60	16	4

Conditions as per ICH Guidelines.

• 25 Deg.C - 60% RH
• 40 Deg.C - 75% RH
• 30 Deg.C - 65% RH

OPTIONAL FITTINGS AT EXTRA COST

A. i) Digital Controller with Printer Interface to connect EPSON dot matrix line printer. Print Interval programmable, can print date, time, temp. and humidity.
ii) -Do- but with standard PC software and connectivity.
21 CFR Part 11 Compliance Software

B. Datalogger : 4 point temp. + 4 point humidity datalogger with sensors placed at specific points in chamber with printer interface and memory of 5000 readings per channel.
21 CFR Part 11 Compliance Software

C. Additional high temperature safety system to cut-off all heaters with audio-visual alarm ensuring temp. within chamber doesn't exceed +70°C.

D. Voltage Stabilizer for above unit.

E. EPSON dot matrix 80 column Printer with stand.

F. Standby Humidity and Refrigeration system.

G. 10 Ltr. capacity aspirator bottle(PP) for storage of Mineral water and to serve as input water source for the Water tank/ Steam boiler of Oven.

H. Silicon rubber tubing - 3 meter for water supply from reservoir to Boiler.

We offer clients precision engineered range of hot air ovens. Its outer body is fabricated with finest quality stainless steel while inner body is manufactured using quality stainless steel & aluminum. Extensively used for sterilization, these hot air ovens utilizes dry heat to sterilize. Our range of hot air oven come with features like alarm system, digital temperature controller, timer. Customization of hot air ovens is also done as per the requirement of the clients.

Salient Features :

• Outer chamber CRC - powder coated
• Inner chamber of S.S.304 - mirror polished
• 65mm high density Glasswool insulation on all sides for minimum heat loss
• With heating elements on three sides, ensuring uniform temp. distribution throughout
• Sealed and enclosed heaters to working chamber for minimum heat loss
• Temp. range 50°C to 250°C
• Thermostatic Temp. control OR Auto tune PID Digital indicator cum controller (Optional)
• Control accuracy +/- 5°C or better - Thermostatic
• Control accuracy +/- 1°C or better - DIGITAL
• 80/20 nichrome heating elements, ensuring long lasting and continuous heating
• Special heavy duty Stainless steel lock and door hinges with spring and roller mechanism
• Stainless steel crimped wire mesh Shelves to withstand heavy load and minimum resistance to air
• circulation for better heat distribution
• Provision to add more shelves, as per requirement of test - Shelves adjustable to place test samples
  
• Glasswares of varying dimensions
• Built in `L` shaped mercury in Glass, YELLOW BACK, German Capillary thermometer, fitted on top at front facia
• Adjustable air ventilation at top
  
• Operation on 220/230V AC single phase

Complete with pilot indicating lamps, 2 mtr. cord wire and power plug.

WORKING SIZE	Trays
H W D (CM)
35 x 35 x 35	1
45 x 45 x 45	2
60 x 45 x 45	3
60 x 60 x 60	3
90 x 60 x 60	3

OPTIONAL ACCESSORIES:

A. Forced air circulation by F.H.P. continuous duty Motor for uniform heat distribution.

B. Dual display microprocessor based PID Digital Temp. Indicator cum controller with sensor in place of thermostat and thermometer.

C. Dual display microprocessor based Auto tuning PID Digital Temp. Indicator cum controller with soak timer and sensor in place of thermostat and thermometer. ( See features mentioned below)

D. Dual display Digital timer with alarm.

SPECIAL FEATURES OF AUTO TUNING DIGITAL TEMP. INDICATOR CUM CONTROLLER

• Dual Display
• Micro Processor based PID type (Auto Tuning)
• Sleek / Compact panel cutout of 42 X 42mm
• With Provision for soak timer - indicates and control required time of operation.
• With option for J,K,T,R,S, and RTD type thermocouple.
• Provision to select resolution 1 deg. C to 0.1 deg. C
• C/F selectable
• With provision to lock the controller on set value

NOTE : When Digital temp. indicator cum controller is opted for temp. control, Forced air circulation system is highly recommended.