CLIMATIC (ENVIRONMENTAL) CHAMBER-(65 X 60 X 80 CM)-(-40°C TO 180°C)-(INNER S.S.)-RAMP AND SOAK PROFILE CONTROLLER

Salient Features

• Precise Temperature/Relative Humidity Accuracies Providing Reliable Test Results for Any Variety of Test Specimens
• Internal Work-Space is made with stainless steel material with LED illumination
• Chamber Door will have Imported compression can locking for proper air seal and key interlock for the safety
• Door Mounted Programmable HMI for easy access
• Door mounted controller with internal routed harness cables for supply and communication
• Imported Heavy duty di-casted hinges for friction free easy swing-over of the door
• Multilayer vacuumized insulated large Viewing window with defog heaters
• Large process digital display indication of Temperature and Humidity on the door
• Ethernet, USB and another Serial Communication Ports
• Online-Graphical Trend Display of the Test Graph
• Adjustable shelve provision for placing the DUT at the desired height
• Turbulent design Stainless steel hub with axil rust free blade is used for Uniform Air-Circulation for Better Temperature Gradient in The Working Space
• Imported Heavy duty castor wheels with inbuilt manual level adjuster for the mobility and levelling of test chamber

Construction Details

Mono-block construction with I-section base frame. The body is impervious with thermally isolated blocks which can resist high-low temperatures. The test chamber has easy-accession sections with removable panels for easy maintenance. Compact structure with best possible minimized foot-prints

• Exterior material shall be made of min 2mm thick CRCS with powder coated panels/door with impressive precision & aesthetics
• Internal test chamber is manufactured with Stainless steel material
• Test chamber is welded with X-Ray automated machine for high quality warp free with 100% air/water tight leak tested.
• Internal test chamber and outer body is isolated using mineral wool ensuring no air pockets and zero conduction and heat losses
• Multi-level diagonally joined airlock silicone rubber sealing the door and chamber with conduction free isolation mounts.
• Test chamber shall have LED illumination with pre-set cut-off timings.
• Multi-layer vacuumized air gaps with nitrogen filled insulated window with inbuilt thermal control defogs heater.
• Sensors for detection of open door and safety shut-down of chamber operation and alert message on the screen
• Feed-through holes: The chamber will have right and left side 115 mm diameter access ports to connect the product during active test conditions
• The chamber shall be mounted on 4” Heavy-duty castor wheels and levelling pads ensuring easy erection & movement of the system.
• 120 Deg swing friction free step open heavy duty door hinge for main door open and close.
• Default chamber will have one no of adjustable rod-type SS shelve/s for loading the specimen in the test-space.

Conditioning Section

• Easy to access conditioning plenum for maintenance
• Single-molded light weight high cfm co-axial fan for uniform air-circulation.
• Vibration-free Stainless-Steel joint-free extended shaft external flange mounted induction motor.
• Modular conditioning g unit consisting of heat-exchangers, air-circulation system and heating system.

Refrigeration system

• Mechanical single stage refrigeration system with hermetic/semi hermetic compressor/s.
• Semi-hermetic compressor/s are mounted on two stage suspensions for vibration-free compression spring/rubber bush tightened with desired torque level
• Eco friendly Non-CFC refrigerants R-404a Air-cooled refrigeration system.
• Evaporator heat exchanger coils are made with oxidize free materials with full collared bullet expanded for highly efficient heat transfer and higher efficiency.
• Automatic bypass control system based on suction pressure and temperature on variable loading / no load conditions, and temperature control accuracy.
• Efficient oil return managing system for protection of compressor from lack of lubrication
• The additional isolation suspension channel with antivibration pads are provided to reduce the vibration & noise level further from the compressor. **

Heating System

• Inconel material sheathed/ bare nichrome air heaters to achieve the set temperature.
• The heaters shall be placed in the conditioning section to avoid any radiation of heat onto the test specimen.
• Heater outputs are controlled through zero-crossing relay/ Thyristor for superior stability and control of temperature.
• Heaters are isolated with high insulation resistance isolators from chamber body to heater in order to avoid the earth leak.

Humidification & De-Humidification

• System Self-pressurized fine-control condensation free humidity generator.
• Automatic humidity purge system based on humidity set point.
• Humidity generator shall be equipped with water level float, over temperature protection thermostat, Inconel immersion heater for vapor generation. Water level automatically controlled through a water-in solenoid valve.
• Refrigeration based de-humidification control system for achieving the desired levels of lower RH with precise maintenance of dew point temperature.
• Independent auto control of dew point temperature to maintain the precise low RH in the chamber.
• High Accuracy electronic Humidity sensor for direct measurement of humidity and working on the extreme temperature range.
• Inbuilt condensation protection features in the system during thermal transfer for electronics active test.

Automation Control System (PLC & HMI)

• 7” Resistive Analog Colour Touch Screen with WVGA 16M Colour capabilities, 800x 480 Pixels with LED back light
• Up to 4 fully isolated serial communication ports (2- RS-232, RS 422/485)
• 10 Base /100 base –TX Ethernet port for external devise communication / Remote operation
• Dual USB host port allows connecting USB Mouse/ Key board and external storage devices
• 3 User programmable soft keys with LED indication for pre-assigned functions
• On board 256MB user memory and extender SD card memory up to 2 GB
• Total programming capability up to 99 programs with each program having 99 Segments and 999 repeat cycles.
• Nest looping with in the program capabilities for with in the segments looping for various test requirements.
• Graphical program editing for faster programming and program view
• Auto PID configuration for full operating ranges of temperature depending on the profile requirement. 
• Real time trend available with user scaling
• 3 Level security for different user access
• Digital pressure monitoring for refrigeration compressor gas.
• Sub system/ components life cycle status and run hour display.
• Calibration due warning.
• Compressor individual diagnostics of Oil level, Discharge temperature, Winding temperature, suction temperature and run hour status with auto report generation of compressor status.        

Safety & Control

• Incoming supply Electromagnetic interference filter for suppression.
• Surge protection for incoming power supply.
• MPCB protection for all the individual 3-phase power devices
• MCB protection for all the individual 1-phase power devices
• Single phase, phase reversal, under voltage and over voltage protection for main input power
• High and low temperature mechanical floating safety protection.
• High and Low temperature software safety protection.
• Over temperature safety thermal protection for heater.
• Mechanical High / low pressure safety protection for refrigeration system.
• Software High / Low pressure safety protection for refrigeration system.
• Inbuilt winding thermal protection for compressor (Only Semi-hermetic)
• Compressor Oil level protection - OPS (Only Semi-hermetic <10HP)
• Compressor high discharge temperature protection

Utilities Requirement at customer end

• 415VAC +/- 5%, 3 Phase 50/60 Hz, 4 wire + E. (Other voltage options are available on request)
• Space around the chamber 600- 1000 mm on three sides except front for Air cooled.
• Drain connection 1⁄2” BSP.

Viewing window

Multilayer vacuumized insulated large Viewing window with defog heaters 

Shelves

Adjustable shelve provision for placing the DUT at the desired height

Validation Port Hole

115 mm diameter, port hole provided with removable silicon sealed cap.

Warranty

Unconditional warranty against faulty workmanship for 1 year at site from the date of installation of the equipment.