All Q-Sun models control specimen temperature with a Black Panel ora Black Standard sensor.
Due to its black coating it absorbs all wavelength uniformly, it provides an estimate of the maximum temperature of the specimen inside the chamber.
Outdoor moisture attack issimulated via a pure water spray.Two nozzles are located in thetop of the chamber. Spray canbe programmed to operate during either the dark or light cycle.
In addition to oxygenation, spray can be useful for creating thermal shock and/or mechanical erosion.
The Solar Eye system constantlymonitors and controls lamp outputto assure precise light exposureand to maximize repeatability and reproducibility of test results.Irradiance control is available at 340 nm, 420 nm or TUV.
HMI+ PLC IN ONE UNIT:
Weiber provides better automatic controls for the chamber by integrating HMI and PLC together. This special feature is compelling alternative to traditional methods and provides a simplified, reduced cost control system architecture.
It works by following operating steps:
- Sensors measure the physical quantity like temperature and convert them to electrical signal
- The actuation device acts upon that electrical signal
- At HMI interface between operator and chamber occurs.
- The machine operates with the logic design controls controlled by software.
- This signal is sent to the chamber by logic control devices and the chamber operates.
Basic features of HMI+PLC:
- Processor of 1.6 GHz: High clock speed processing PLC that enables speed up processing to the functions. With 1.6GHz processing speed, the PLC system is capable of multitasking, processing of large data volume, and high performance.
- Audio Output Alarm: Audio alarm alertin case of failures in any of the component controlling functions.
- 256 MB of RAM: PLC of 256 Mega Byte memory for running programmes offers high memory space for installing of more programs
- COM Port: Com port provided for attaching RS 235/RS 485 cable.
- Increased Numbers of On - Board I/O peripherals (10-50): Maximum number of 50 I/O peripherals provided on request, to attach input and output devices to the HMI and PLC. Increased number of input and output peripherals allows adding of devices like printers, recorders, etc.,as per the need.
- Data Logging and Free Programming Software: Attached data logger with input program software provided. Through data logging software, HMI and PLC collect datathrough sensors, analyse the data and save and output the results of the collection and analysis. Examples of the types of information a data logging system can collect include temperatures, sound frequencies, vibrations, times, light intensities, electrical currents, pressure and changes in states of matter.
CoDeSys (Controller Development System) software technology
Chamber Body: Double walled cabinet with inner chamber made up of Stainless steel of grade SS 304 and outer wall of heavy gauge Mild steel sheet that is degreased and pretreated with primers for rust proofing.
Insulation: It’s a process of retardation or the reduction of heat loss or heat gain for energy conservation. Weiber xenon Chamber provides cellular insulation that is through polyurethane foam.
Cellular Insulation: Composed of air or some other gas contained within foam of stable small bubbles and formed into boards, blankets, or hollow cylinders.
Heating: Desired positive temperature is provided through stainless steel sheathed air heaters, these heaters do not affect the test specimen directly as they are placed in conditioning plenum proving indirect heat.
Air Circulation: Air circulation efficient motor fans are provided, ensuring uniform temperature throughout the chamber.
Cooling: Negative temperature is maintained through ultra-low temperature application compressor and non CFC ecofriendly R 404a refrigerant used.
DETAILED DESCRIPTION ALONG WITH SALIENT FEATURES ARE AS UNDER FOR REFRIGERATION MACHINE
CONDENSING UNIT
AIR-COOLED CONDENSOR
Air-cooled condenser is internally grooved finned copper tubes used for high heat transfer area, which not only reduce power consumption, but also bring down the condensation faster. This unit is designed. &verdigris& reduces the resistance, saves energy consumption and ensure good heat exchange.
COMPRESSOR:
- HERMETIC COMPRESSOR
Single stage Reciprocating Compressor. Give the High Efficiency compared to sealed compressors, Less Power Consumption , Accessible for repairing, low noise level, Less Vibrations, Wide Voltage Range, Designed for Extremely High Ambient ,Full warranty etc
- COOLING SYSTEM
The compressor is mounted perfectly to ensure recommended level of sound and vibration.
REFRIGERATION CONTROL
- Low and High Pressure switch of RANCO/Danfoss
Which ensures the compressor and refrigeration system when low pressure will occurs it trip off the compressor. This is the only operator friendly switch can easily reset.
- Hand Shut off Valve
Is the only Condensing Unit, which is equipped with it. This valve is used for pump down the total gas in to the condenser & receiver in the faulty condition.
- Liquid Dryer of Danfoss make
Which is equipped in the liquid line for ministration of moisture in the liquid. It will collect all the moisture in side the refrigeration line as well as gas.
- Moisture Indicator of Danfoss make
The sight glass area in the Moisture Indicator shows at a glance the condition of the refrigerant system. The moisture indicator element changes colour and indicate if the system is safely dry, or dangerously wet.
- Solenoid Valve of Castle make
In most refrigeration applications, in order to automatically control the flow of fluids in a system, it is necessary to be able to start or stop the flow in the refrigerant circuit. An electrically operated solenoid valve is usually used for this purpose. Its basic function is the same as a manually operated shutoff valve, but it can be positioned in remote locations, and may be conveniently controlled by simple electrical switches.
- Oil Separator of Stainless Steel 304
The oil separator intercepts the oil mixed with compressed gas and returns it into the crankcase of the compressor, thus assuring an efficient lubrication of its moving parts. Also, it improves the overall efficiency in the system.
- Suction Accumulator
Maximum Efficiency of the relief device (expansion valve) because it is supplied with sub cooled Liquid.
- Liquid Receiver
As per ASME Section VIII Division I for storage of refrigerant.
Xenon Arc Lamp:
Xenon arc lamps are to simulate full sunlight spectrum. To reproduce the presence of different environments destructive waves,it can provide the appropriate environment for simulation of scientific research, product development and quality control and acceleration tests.
The Technical Parameters:
- Power: 1.5KW
- Outer diameter: 20 mm
- Overall Length: 350 mm
- Radiation intensity: 500 ~ 1200 W / m2
- Xenon Wavelength: 290 ~ 800 nm
