sri rudran instruments co. Chennai, Tamil Nadu

Construction: SRICO Hot & Cold Chamber, triple walled vertical type cabinet. Outer casing is mild attractively colour powder coating finished. 75 mm thickness glasswool / puf insulation minimize temperature loss. Stainless Steel/Aluminium interior walls supports allowing wide range of shelf positions and spacings. Trays made of Stainless Steel/aluminium. Intermediate wall maintains constant temperature inside the chamber. Fully view inner glass door closed on a resilient gasket and permits inspection of stores without disturbing the same. Lock and key arrangements is provided in the double walled outer door. Also fitted a door operated lamp for illumination inside the chamber. The unit is mounted on caster wheels for ease of mobility. Digital Temperature Indicating cum Controller: Digital display temperature indication. Fully automatic solid state electronic controller with PT-100 sensor controls the temp. automatically. Press to set the temperature setting using the same display eliminates set and rest error and serves easy quick setting temperature +200’C to –80’C with sensitivity +/-1’C. Forced Air Circulation fan is fixed to maintain uniform temperature throughout the chamber. Hermatically sealed, high performance, low noise, CFC-free compressor works quickly and maintains the cooling coils run all round the inner chamber. Refrigeration: Arrangement consists of double stage gasket type model. Air cooled and gasket type condensers for first and second stage. Filters, solenoid valves, gas reservoirs, 502 and R 13 refrigeration gas, suitable copper pipelining, etc. are housed at the bottom of the Cold Chamber. Control Panel: All controls and circuits are housed at he side of the hot/cold chamber and therefore protected from spillage. Separate indicator lamps for mains, cooling and heating indication. Digital temperature setting screw allow the user to select and set any desired temperature. Voltmeter, Ammeter, is provided on the panel to read the incoimg voltage and amps. Air brake magnetic contactor and ON/OFF switches, connecting strips, etc. Power supply working on 230 volt single phase 50Hz A/c main, 3 wire system.   Optional For Above Models:     1.Microprocessor Based Digital temperature Monitoring System with built-in Printer, ON/OFF type    temperature controller, high/low function are provided. The instrument accepts pt 100, 0r RTD input.    The input is linerised for high degree of accuracy. “INSTEAD” of digital controller.     2. Automatic Digital Timer Range 999 Hours or 999 Minutes with thumble setting.     3. Energy meter     4. Voltage Stabilizer.

Application: SRICO Drier in Chemical, Pharmaceutical Food Dyestuff, Engineering, Sugar, Oil Mills, Plastic Industries etc. Construction: Double walled construction with rigid frame work and having insulated with Glasswool. Fresh air inlet and suitable exhaust will be provided. The interior will be finished with heat resistant Aluminium and outside with hammertone and Black Borders. Heating Element: Heating is accomplished by totally enclosed strip Heaters made out of imported BDH Nichrome wire provided on the sides of the inner chamber to obtain maximum temperature. Air Circulation: In order to obtain temperature specially designed. Air Circulation Fans are fitted on the side of the unit. The design of the fans are such that the unit will such the hot air to pass over the trays ands and throw it on the sides where they will be reheated, and recireulated to continue the cycle. A part of the air is come out to threw the moisture. 12 Trays – 1 Fan     Fan motor 1 x 0.25 1 Phase 24 Trays – 2 Fan     Fan motor 1 x 0.50 3 Phase 48 Trays – 1 Fan     Fan motor 1 x 1.00 3 Phase 96 Trays – 2 Fan     Fan motor 1 x 1.00 3 Phase Control: The fan motor is controlled by a starter and the working of the fan indicated by pilot lamps. The temperature inside the chamber is controlled by a thermostat and indicated by a Dial Thermo Meter. An indicating pilot lamp is also provided to single working of the drier. The heater circuit will be interlocked with the circulation fan so that the heaters are not energized with out the circulation fan being ‘ON’ which in turn will protect the heaters. Size of Trays will be 32” x 16” x 1 ¼ Material of construction may be aluminium or stainless steel. Wire mesh trays of size 32” x 16” can also be supplied. Trays could be supplied at the extra cost noted under accessories. Suitable Trally can be supplied at extre cost. No tralley is required for the tray drier of 12 & 24 test models. For 48 numbers. Model 1 Trolley is needed for 96 numbers Trolley required.

Material of Construction: 6mm thick asbestos lined FRP Bispheonl "A" fumerate resin rein forced with veneer ply sheet 12 mm thick. External laminated with melamine sheet. Door: Single, automatic, concealed type balanced with counter weights, sash weights, wire rope and others. Motor: 1 H.P. 1440 RPM, three phase motor Ducting: 200MM dia thick, rigid PVC pipe of height 8' will be provided with suitable rain hood. Impeller: Dynamically balanced FRP impeller. Buffed by 3 mm thick FRP sheet. Exhaust blower: Centrifugal dulvin type, in-built Casting: 6 mm thick FRP Bisphenol "A" fumerate resin. Temperature: Max 120'C pressure 2" swg Suction: 1000/1200 cfm per minute. Balancing: By suitable equipment upto 3000 RPM Bottom Arrangement: 3' Height table made out of 19mm black board with sliding door, open door and one number horizontal partition internally coated with epoxy paint. Flooring: Working surface shall be floored with spartek tiles with acid resistant cement joints. Electrical Arrangement: 2 Nos of 3 pin 15/5 amp socket, with control switch and bush type starter will be provided. Overall Dimension Approx.: 8 X 5 X 2.5 Feet Power Supply: 230 Volts 50 Hz Ac Main 3 Wire System.

Construction: The oven is triple walled construction with mild steel sheets and sections. A3” layer of glasswool insulation will be provided in between the first two walls to minimize heat loss. The oven bottom is suitably reinforced to take up heavy weight. The interior of the oven is finished with heat resistant aluminium paint while the exterior is of hammertone grey finish. Adjustable tras will be supplied extra. The oven has two double walled well insulated doors at its vertical ends fitted with sturdy hinges. The doors will have asbestos gasket which will prevent excessive heat loss through front face of the oven. Heating Element: Heating is accomplished by the aid of Strip Heaters, made out of imported Nichrome wire which are fixed in between the two interior walls of the verticals sides. Facilities will be provided for easy replacement of heaters. Air Circulation: This is accomplished by a Centrifugal Fan driven by a powerful motor, which will circulate uniform temperature inside the chamber. Temperature Reader: One no. dial thermometer will be mounted on the side to indicate the correct temperature. Control Gear: Consists of one no. imported capillary thermostat for automatic temperature control, one no. heat control switch, three nos. Ammeter, one no. Voltmeter with selector switch, indicating lamps, air break magnetic contactor, On/Off switch for Fan Motor, fuses etc. which will be mounted one sheet cubicle and fitted on to one side of the oven itself. Power Supply: 400/440 volts, 50c/s, three phase, AC mains, four wire system. Safety Devices: The following safety devices will be incorporated in oven: 1. Auxillary thermostat, which will take charge incase of failure of main controller. 2. Door limit switch : To cut off power supply to the heaters while opening the door. 3. Inter lock arrangement: Between fan and heaters, will energise only when the fan is “ON”

Material Construction: Inner Chamber: Fabricated thick plate 304 grade or 316 grade Stainless steel. Middle Chamber: Fabricated thick plate 304 grade or 316 grade Stainless Steel or Rolled Steel. Outer Cover: Fabricated thick sheet 304 grade Stainless steel or Rolled Steel. Door Construction: Fabricated thick plate 304 grade or 316 grade Stainless steel or Rolled steel. Welding process: TIG (Argon – Arc welding) Insulation: Super Good quality glasswool filled with between outer and middle wall. All Steam line piping of stainless steel: Entire Cycle of sterilization controlled from single point operation. Safety device self locking of door when chamber is under pressure, pressure switch, safety valve, vacuum braker for jacket. Main unit fitted with pressure and vaccum gauge, compound gauge, multiport valve, safety pressure release valve. Multiport operating  valve: All functions of the sterilizer is controlled by this valve. The five positions indicated the following:     1. Jacket pressure built up     2. Steam entry from jacket to chamber     3. Slow discharge of steam from chamber     4. Rapid discharge of steam from chamber     5. Vaccum Generator: The generator is to be fabricated from thick gauge stainless steel sheet and the three heaters to be fixed on the front plate of the generator, the float switch is to be connected to the generator so that the unit stops working when the water level goes down. Steam generator fitted with gauge valve, low water protection, visual alarm, pressure gauge, safety release valve, pressure control valve and heating elements. Instrumentation control Panel fitted with the following items:  Digital temp. indicating cum controller, Voltmeter with selector Switch, Mains On/Off Switch, Heaters On/Off Switch, Indicating Lamps, Air Break Magnetic Contactor, Pressure Control Switch, H.R.S. Fuse Carriers, etc. Technical Data: Working pressure: 1.2 kg/cm or 2kg/cm Temperature: 121 C Power supply the autoclave supplied suitable of main cable 2-meter length wire for operation 400/440 volt Three Phase 50 cycle AC Main 4 wire system. Optional Accessories:     1. Stainless Steel carriage     2. Rolled steel transparent trolly     3. High vacuum pump     4. Microprocessor based Temp. controller and printer     5. Thermograph and temp. RTD sensor.     6. Digital automatic timer

Environmental / Climatic test chamber used to test effects that climatic changes have on products placed within environmental chambers. These chambers evaluates product quality, identifies weaknesses, etc. High temperature, low temperature and humidity testing conditions can be done in single unit either manually / programmed with cyclic operation conditions. Temperature ranges: -10 to +100°C | -40 to +100°C | -70 to +100°C | -70°C to +150°C Humidity range: 40% to 98% @ 30°C to 80°C. Technical Specifications: Temperature, Humidity Controller (Humidity - Dry and Wet bulb method) Digital Microprocessor based, PID, Temperature Indicator cum controller with display resolution of 0.1°C. Digital Microprocessor based, PID, Humidity Indicator cum controller with display resolution of 1%Rh.     (direct reading). Display accuracy ±0.5%, full scale. Temperature controlling accuracy ±2°C. Humidity controlling accuracy of ± 2-3% @ 40% to 98% Rh. Class A grade PT-100 (RTD) Sensor for dry and wet temperature measurements. Construction: Vertical model. Inner Chamber made of dully polished Stainless Steel, 304 Grade. Outer made of Mild Steel, powder     coated. Polyurethane Foam (PUF) and Glass Wool / Ceramic blanket Insulation. Handle, lock and heavy-duty hinges for door. Door with Silicon / Neoprene rubber gasket for leak proof. Forced air circulation to maintain uniformity of temperature. Frost Free Viewing Window to observe the testing components during working condition. Double walled full front opening door. Inner lined with SS. Long life Ni-chrome, SS heaters with fins for higher temperature. Automatic cut off for circulating fan when the door is opened. Lockable Wheels for easy movement. Drain facility to drain the condensed water from the chamber. Adjustable SS meshed trays. Refrigeration System: Hermetically sealed EMERSON Copeland make compressor. CFC free refrigerant filled. Fin and tube type air-cooled condenser. Safety features: Provided with Suitable overload protectors and MCB s to ensure absolute safety to Electrical / Electronics and Refrigeration Systems. Provided with automatic water filling for humidity test. Door light is provided for viewing window. Single phase preventor will be provided for 3-phase instruments. High Pressure and Low Pressure safety cut off for Compressors. Fully solid-state relay (SSR) control for heaters. High and Low temperature deviation alarms. Standard sizes: 600 x 600 x 600 mm | 750 x 750 x 750 mm | 1000 x 1000 x 1000 mm Power Supply: Single-phase 230Volt / Three phase 440 Volt, 50 Hz. Optional: Calibration certificate traceability to NABL standards (Temperature controller with sensor). Tower Light with Red, Orange & Green indication to know the status of the machine. Specimen Protection to protect Components from high temperatures. Multi Programmable, cyclic Eurotherm PID controller with ramp and soak. IR lamps facility for component surface testing. Full Stainless steel (Inner & Outer). Computer Interface (RS232 / 485). Available in different chamber sizes, as per customers requirements. Note: Due to continuous development SRICO reserves all the rights to change specifications without prior notice.