THERMAL SHOCK CHAMBER WITH CHILLER PLANT

• Microprocessor based Thermal Shock Chamber controller with Auto tune PID Temperature Control/HMI based controller.
• Soft Power on switch
• Programmable profile control programs for automatic operation.
• Real time Clock
• SSR based output controls for Heater, cooler, Humidifier, Dehumidifier.
• Safety and Convenience over temperature and current protection capability
• Temperature Alarm
  Self-Diagnostic Function
• Thermal Shock Chamber equipment is prohibited for Testing or storage of flammable, explosive, volatile substances in the specimen.
• Casters wheels with leveling and locking provision
• Drain: Water drain is provided to drain out condensed water out of the chamber test space.
• Sound pressure level- approx. 65-70 dB
• Observation window for sample visualization
• Effective Dehumidification system during heating

STANDARDS

• • MIL-STD-810D High temperature test
  • MIL-STD-810D Low temperature test
  • MIL-STD-810D Damp heat test
  • Standards : ISO,EN, CE, Electro magnetic
  • MDD :- 93/42/EEC
  • EN 61000-6-1 : 2001
  • EN 61000-6-3 : 2001
  • IEC 60068-2-1
  • IEC 60068-2-2
  • Electromagnetic Compatibility Directive (89)/336/EEC)
  • EN: 60101, ISO, CE
  • IEC 68-2-1 Environmental testing – Part 2: Test methods – Tests A: Cold
  • IEC 68-2-2 Environmental testing for electrical and electronic products Test methods – Tests B: Dry Heat
  • IEC68-2-3 Environmental testing for electrical and electronic products – Part 2: Testing method test Cab: Damp heat Steady state
  • IEC 68-2-30 Environmental testing for electrical and electronic products – Part 2: Test method – Test Db: Damp heat, cyclic (12h+12h cycle)
  • IEC 68-2-14 Environmental testing for electrical and electronic products-Part 2:Test methods-Test N: Change of temperature

• SAFETY FEATURES

  (a) For hot & cold chamber, as per EN 60519-2 with separate sensor, one in hot & one in cold chamber 4

  (b) Digital I/O, 4 digital outputs & 4 digital inputs for control of devices

   (c) Electrical unit should comply with VDE regulations for accident prevention regulation

   (d) Specimen protection with separate sensor & display

   (e) Permanent overheating safety thermostat to switch off the heater if chamber maximum temperature is exceeded

  (f) Safety protection for basket when door is open

  (g) Temperature control through sensor in hot or cold chamber through moveable sensor in the basket

  (h) Additional sensor in the basket for monitoring of temperature in specimen

  (j) Specimen basket STOP when door is open

   (k) Safety excess temperature limiter in hot and cold chambers

   (l) Removable guards around the basket to prevent test specimens from getting jammed between basket and chamber walls

  (m) Switching-off of test specimen: potential -free contact especially for heat emitting test specimens, lead onto socket, max. load 24 V, 0.5 A

   

  WATER CHILLER PLANT

  1. a) Chiller with Chilled water tank and pump

  (b) Inter connection piping (Synthetic elastomer, metal braiding, with insulation and fittings from Chiller to Chamber for a length of 15 m, any extra length required will be extra.

   (c) Cooling capacity: 52.75 kW / 15 TR / 45000 kcal/hr.

  (d) Outlet cooling media Temp. from Chiller : 15° C

   (e) Power: 19.2 kW, 34.8 A, 3 PH, 415 V, 50 Hz

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• 32-bit control system with 7'' colorful TFT Capacitive Touch display HMI Controller is built around high performance core hardware with integrated functionality.
• In addition USB host port allows direct transfer of log files, program files and report to the external storage devices like Hard disk USB drive.
• Communication ports (RS 232/485).
• 32-bit control system with multiple programming options, & minimum 7” TFT color display. It should have provision for
• password protection with minimum 8 or 9 level
• configurable and with diagnostic system
• 10 Base /100 base –TX
• port for external devise
• Communication/Remote operation (OPTIONAL).
• USB host port allows connecting USB Mouse/ Key board and external storage devices (OPTIONAL).
• User programmable soft keys with LED indication for pre-assigned Functions.
• On board 1 GB USB Pen drive.
• Total programming capability up to 4 programs with each program having 20 Segments and 9999 repeat cycles.
• Program based / segment based PID selection for accurate program control.
• Real time trend available with user scaling.
• On demand Auto tuning.
• Securities for user access.

Programming modes:

 (a) Long term operation: provision for Long-term operation without ice forming too fast on the evaporator through an integrated volume compensation system

(b) Pre-conditioning: Before starting the temperature cycle, it have provision to pre-temperature condition the hot and cold chamber to the required temperature

(c) Post-treatment: After termination of the program there provision to program both hot and cold chamber at any temperature within the temperature range

(d) Single chamber: For operating the hot or cold chamber as single temperature chamber

(e) Normal operation: provision for a faster adaptation of the sample to the test temperature by pre-tempering the empty hot or cold chamber to a set value slightly lower or greater than the set point temperature. The test space chamber resumes control at the set point temperature

as soon as the basket begins to move

(f) Time-optimized operation: provision for selecting a second temperature set value of the responsible air flow for a short time after moving from one chamber to another to ensure a required dwell

time of the specimens at a defined temperature

(g) - Power save operation: In case of long program, the chamber that does not

contain the basket should not temperatureconditioned as power save operation mode

 Hardware Interface

Color touch screen with USB & Ethernet port for PC & Printer connectivity

 Test Profiles

provision to run as Manual mode through Touch screen panel, External mode

through PC. There should be provision to store minimum 50 programs with 99 steps &

1000 cycles with auto start function in case of power failure

• THE INNER CHAMBER Thermal Shock Chamber is made of heavy gauge solid Stainless Steel sheet.

• OUTER BODY of our Thermal Shock Chamber double walled constructed out of Cold Rolled Powder Coated.

• Inspection window size ≥ 350 mm x 350 mm with multi pane toughened glass

• Stainless Steel Tubular heater is fitted for better circulation

• Door- Manual single wing on left, one hand operation with lock & opening system by handle

• Microprocessor Based Advance CKD Programmable controller provides automatic operation of variable temperature, humidity value

• The stainless steel shelves are adjustable and perforated, making them easy to clean and highly resistant to corrosion.

• Thermal Shock Chamber Technical Design and Construction Silent fan motor to maintain uniform temperature and humidity Angle Iron frame.

• Castor wheel for easy movement (for Refrigerated model).

• Technical Design and Construction Silent fan motor to maintain uniform temperature and humidity.

• Circulation motor for water injection in routine model inside the control unit & Chamber.

 DEHUMIDIFICATION

• Refrigeration based de-humidification system is used. The desired level of lower humidity will be achieved by maintaining the precise dew point temperature. The output will automatically be activated based on the set point as well as in ramp up mode after a low temperature cycle.

• CFC Free

• Precise Hot Air & Humidity

• Puff Insulation keep the surface Temperature comfortable

• Silent Hot Air Blower,

• Unique design of Air Circulation.

• Humidity circulation.

• Improved Temperature Humidity distribution.

• Unique design of Ventilation.

• Stainless Steel Tubular heater J shape is fitted in the steam Bath for long life & better result.

• Day and Night Controller so as to set two different temperatures for day and night or through a DIGITAL MICROCONTROLLER.

• Illumination fluorescent tubes IN the chamber.

• Cyclic illumination conditions are regulated by automatic Microprocessor based programmable timer.

STEAM GENERATION

Steam Generation Boat made of SS 304 placed inside the chamber at the bottom of Evaporator Coil with SS Wet Heater.

SEALING AND LATCH:

 The door and chamber are interfaced with a double silicon gasket to reduce heat transfer to the exterior panels. easy to use toggle latch. This applies the adequate amount of pressure on the double silicon gaskets for perfect sealing.

CASTER WHEELS:

Thermal Shock Chamber is supplied with the inbuilt facility of Heavy Duty Castor wheels for easy movement with Front Wheel Locking Facility.

 PORT HOLE:

 25/50/75/100 mm dia. Port holes are provided with Rubber closure to plug when not in use.

INSULATION:
In Thermal Shock Chamber The Gap between the walls is filled with Polyurethane Foam (PUF) Insulation.

HEATING:

 Sealed Inconel heaters are located behind test space in the path of the circulated air.

 They are properly insulated to with stand high and low temperatures and high surface temperature on the heater surface.

The system is protected from overheating with the help of a bimetallic strip which cuts-off the heater when the temperature exceeds a predefined limit.

AIR CIRCULATION SYSTEM:

 The forced air circulation system provided in the chamber circulates air from the test space, over the cooling and heating coils and back into the test space.

Door interlock synchronized with the air circulation system

 Temperature Conditioning System:

• Each chamber shall be conditioned using powerful axial fans, circulate the aspirated test chamber air constantly over the electric heaters in hot zone or fin-type heat exchanger in cold zone built into the circulating air duct.

• Intensive circulation and the special cross-air circulating system create the conditions for homogeneous temperature conditioning, best temperature constancy and rapid temperature change. For cooling, a powerful refrigerating cascade with robust semi-hermetic compressors

  Refrigeration System

• Water cooled with low-noise refrigeration unit with adjustable power adjustment circuit & 2-

• Way cooling water controller ensuring economical operation and performance related withdrawal of cooling water. Cooling Water consumption, quality and temperature.

 Compressors & Refrigerants

• Two stage cascade semi hermetic compressors with non-CFC fluids such as

R449A & R23

 Heating system

• Electrical heaters resistive to carburization & protected by thermostat

Temperature sensors

• Pt-100 probe