Environmental Specialties Photostability Chambers
Item#: BAHNSON-PHOTOSTABILITYEnvironmental Specialties Photostability chambers from are used in laboratories for testing products with high intensity, ultra-violet light in a controlled setting. In order to comply with the FDA’s Q1B Guideline of 11/96 for Stability Testing, we offer two optional light sources for these chambers: one to produce an output similar to that specified in ISO 10977 guidelines and another ultraviolet-A lamp to meet specific emission guidelines. These chambers feature a heavy-duty refrigeration system with reserve heat removal capacity for quick response to door openings as well as a user friendly touch-screen control system for process control. They also feature process alarms, circuit switching and a high-performance electronic and mechanical system designed to accelerate heating, cooling and recovery rates. Additionally, the lighting system with adjustable, uniformly-controlled light levels provides up to three simultaneous light studies. The solid-state controlled electric steam humidifier with microprocessor controls maintains close tolerance of humidity control. To complete this chamber, we offer a number of options designed to meet any additional needs.
Special Chamber Options
Reach-In Chambers can be equipped with many options and variations including the following:
- CO2
- Explosion Safe
- Low RH
- Frost-Free
- 4-Bank lighting for Photostability
- Back wall lighting for product inspection
- Cascading water fill system for concrete testing
- Rapid cycling for electronics testing
- Standard volumes of 12, 33, 74 and 114 cubic feet
- Heavy-gauge stainless steel interior with scratch-resistant enamel on exterior of cabinet.
- Closed-cell urethane insulation for superior high/low temperature stability and minimal heat transfer. The door is also completely foamed for thermal performance and rigidity.
- Heavy-duty door hinges, full peripheral magnetic door gaskets and positive action latch with a lock to maintain a secure, uniform seal.
- Removable stainless steel plenum cover and wall air chases for ease in cleaning and maintenance.
- Heavy-duty 2” casters (on floor models) and adjustable levelling feet for ease in installation.
- Highly reflective metal wall coverings on all vertical surfaces.
- Air-cooled, hermetically sealed compressor with environmentally safe, non-toxic, CFC-free refrigerants. Optional water-cooled units are available.
- Expansion valve refrigeration control provides higher heat removal capacity than conventional capillary tube designs and provides immediate response to added heat loads.
- Automatic adjustment of lamp output to maintain intensities at varied conditions.
- Interchangeable cool white, near-ultraviolet, full spectrum, and dual source cool white/UV banks designed to meet Options 1 and 2 of current ICH/FDA guidelines. Three banks are accommodated in the upright floor model; one bank is provided in the benchtop model.
- Independent light level and timing controls are provided at each individual light bank. Light bank timers provide precise testing durations.
- Individual front reflector panels allow the chamber’s door to open without disturbing tests at other light shelves (floor model only).
- Highly transparent light barrier for maximum transmission of visible and near-ultraviolet light while providing protection for the bulbs.
- Stainless steel light bank shell with aluminium interior for corrosion resistance and high reflectivity.
- Shelf-mounted telescoping sensor capable of accurate measurement and control of light levels through varied temperatures, product heights and reflective conditions. Each light surface has a controlling sensor.
- Precision, silicon photo diode light sensor custom-designed by ES and factory calibrated per NIST traceable standards.
- Light level set point configuration in kilolux or watts per sq. m. with a digital light level display. Optional units available on request.
- High frequency electronic dimming ballasts offer up to 20% more efficiency than traditional electromagnetic ballasts.
- Alarm silence function on all parameters with up to 60 minutes of delay time (individually adjusted for each parameter).
- Standard N. O./N. C. dry alarm contacts for remote monitoring of each parameter. There is one temperature, one humidity and one general lighting alarm.
- High output vapor generator with float switch actuated solenoid fill system.
- Dual refrigeration coil design for dehumidification at temperatures depicted on the Humidity Performance Curve sheet.
- Humidity display configuration in % RH.
- Solid-state variable capacitance humidity sensor calibrated per NIST traceable standards.
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