Environmental Test Chamber

Description

Environmental Test Chamber is mainly used to test the heat resistance, cold resistance, dry resistance and humidity resistance of various materials.
This equipment is widely used in the testing and reliability testing of electronic and electrical engineering, aerospace plastics, auto parts, medical treatment, building materials, military industry and other products.

Application

Environmental chamber is an enclosure used to test the effects of specified environmental conditions on biological items, industrial products, materials, and electronic devices and components.

Features

 Microprocessor based Environmental 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
 Environmental Test 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

CONTROLLER

• Delta/Omron make 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).
• 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.

Control

 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
 MIL-STD-810D High temperature test
 MIL-STD-810D Low temperature test
 MIL-STD-810D Damp heat test

Construction

 THE INNER CHAMBER Environmental Chamber is made of heavy gauge solid Stainless Steel sheet.
 OUTER BODY of our Environmental chamber double walled constructed out of Cold Rolled Powder Coated.
 Stainless Steel Tubular heater is fitted for better circulation
 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.
 Environmental Test temperature 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.
 HUMIDITY RANGE:
Relative Humidity Range- From 10% to 90% within the temperature range (+10°C to + 90°C) (without solar radiation) [Calibration certificate for temperature and R.H. (using instruments calibrated with accredited calibration laboratory will be provided.

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:

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

PORT HOLE:

25/50/80 mm dia. Port holes are provided with Rubber closure to plug when not in use.

INSULATION:

In Environmental Test 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

SOLAR SIMULATOR AND DEVICE MEASUREMENT SYSTEM
Lighting Roch Environmental chamber is provided Solar spectra equivalent radiation source unit with LED (preferable) or metal-halide light source.
In case of metal-halide light source, additional lamp needs will be provided along with the equipment as a spare. The specification of the optical filter system will be provided.
The system will be provided a total irradiance of is 1100 W/m² – with 1 SUN equivalent spectral distribution (IEC standard – Class B, at least) over the area of 0.2 m2.
Irradiation intensity measurement Irradiation intensity measurement – by calibrated Pyranometer/Photodiode will be provided to read the light intensity inside the chamber. Self-calibration of the lamp with the sensor.
General
1. Electromagnetic door closing System to ensure safety.
2. Entry port made of silicon for electrical connections and wires
3. No. Shelf made of stainless steel
4. Electrical wiring comply to standard to ensure safety.
5. Interfaces RS232 / Ethernet / USB
8Along with chamber, provide latest configuration Laptop of reputed make with required software for remote operation and monitoring. The minimum configuration is with i7 or better processor, 16 GB RAM, 1TB SSD.
Lighting LED
Control panel- Touch buttons
Power Supply- Single phase, 220 Volts, 50 Hz.

Power backup –
Chamber has inbuilt power backup for the PLC to prevent loss of test results.
In event of power failure, Chamber has the capability to start the profile where it stopped automatically on power resumption.

Remote control
Roch Chamber is provided with the facility of Remote control and monitoring of the test chambers through WIFI/ Ethernet The control software will be able to perform (though not limited to)
• User defined measures and its’ recording
• Ability to upload, edit, export, (and delete) already existing cycles and recordings.
• Storage of alarms and events occurred during chamber operation.
• Visualization and graphical analysis of measures and recordings.
• Synoptic graphs of the entire system.
Chamber is provided with Remote Diagnostics by monitoring chamber parameters remotely provides efficient service & maintenance activities.

Specification