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Ci4400 Weather-Ometer

  • Overview +



    For over 100 years, Atlas instruments have revolutionized the science of weather durability testing. The new Atlas Ci4400 Weather-Ometer® is our most advanced instrument yet providing easy and effortless operation, unmatched uniformity, increased capacity and a sleeker design, delivering unparalleled value and performance. With its user-friendly touch screen interface and ergonomic features, the best-in-class just got even better.

    Unmatched Repeatability and Reproducibility

    Design and engineering innovations in the airflow, irradiance and control systems have dramatically reduced variability in critical test parameters. As a result, the Ci4400 achieves new levels of temperature, humidity and light exposure uniformity.

  • Features +


    • 6500 W water-cooled xenon arc lamp system
    • Total exposure area of 7,300 cm2 (1,130 in2)
    • 3-tier inclined specimen rack with removable sections
    • Full color 15" touch screen user interface display of all test parameters
    • Direct setting and control of irradiance: 340nm, 420nm, or 300-400nm
    • Direct setting and control of BPT/BST
    • Direct setting and control of relative humidity
    • Direct setting and control of chamber air temperature
    • Display of diagnostic messages
    • 14 factory pre-programmed test methods
    • Space for 12 custom programs; sub-cycle capability
    • Multi-language capability (Chinese, Czech, English, French, German, Japanese, Korean, Polish, Russian, Spanish, Turkish)
    • Streaming data output via Ethernet or USB port. USB thumb drive included
    • SmartLightTM monitor verifies that correct light capsule is installed
    • Specimen and rack spray
    • Filter combinations available to meet all common test methods
    • Air intake filter
    • CS-9 xenon lamp cooling system
    • Water purity indicator with alarm
    • Test status indicator light
    • Fold-out tray to hold sample racks, logbooks, consumables, or laptop computers
    • Chamber door with lockable latch
    • Easy access to chamber for routine maintenance
    • Calibrated xenon reference lamp or Xenocal for Ci calibrator
    • Chamber viewing window in door
    • Universal electrical configurations to meet local frequency, voltage, and electrical requirements
    • Designed to meet CE, UL, ISO, EN, and CSA safety requirements
    • Automatic test countdown based on time or radiant exposure
    • VibraSonicTM Humidification System
    Contact us today to see how we can help you get the most from your weathering tests and processes.

  • Sealed Lamp +


    Now, the industry-leading Ci4000 and Ci4400 Weather-Ometers® are even easier to operate and maintain.

    Two initial 6500 Watt Atlas Sealed Lamp filter combinations are now available for both models. Each Atlas Sealed Lamp is a direct replacement for its corresponding lamp/ filter assembly and includes the same Atlas 1,200 light-hour warranty.

  • Options +


    • Dual Black Panel Temperature (BPT) and Black Standard Temperature (BST) Measurement/Control including uninsulated BPT and BST sensors
    • Monitoring of second wavelength: 300-400 nm, 340 nm, or 420 nm
    • All-In-One-Sensor (AIOS) for control of all test parameters on the sample exposure plane
    • WXView II Data Acquisition System - Web-based application to allow users to securely access instruments connected to their company network, download archived files, and other functionality

  • Accessories +


    • XenoCal irradiance calibration device for independent irradiance calibration and measurement at the sample plane
    • Auxiliary filter lantern for meeting special test requirements
    • Specimen Holders available to accommodate many sample types
    • LiquiAirTM self-contained xenon lamp cooling system (top or wall mount available)

  • Standards +


    The listed standards and specifications may include several alternative testing options. The instrument meets at least one option in any listed standard. Standards are subject to change without notification, which may result in a change in testing technology. Always check the revision status of a standard with the responsible Standards Development Organization. If unsure about instrument compliance, please contact your local sales representative.

    • AATCC TM16.3
      • Colorfastness to Light: Xenon-Arc
    • AATCC TM169
      • Weather Resistance of Textiles: Xenon Lamp Exposure
    • AATCC TM16E
      • Colorfastness to Light
    • ASTM C1257
      • Standard Test Method for Accelerated Weathering of Solvent-Release-Type Sealants
    • ASTM C1442
      • Standard Practice for Conducting Tests on Sealants Using Artificial Weathering Apparatus
    • ASTM C1501
      • Standard Test Method for Color Stability of Building Construction Sealants as Determined by Laboratory Accelerated Weathering Procedures
    • ASTM C1519
      • Standard Test Method for Evaluating Durability of Building Construction Sealants by Laboratory Accelerated Weathering Procedures
    • ASTM C732
      • Standard Test Method for Aging Effects of Artificial Weathering on Latex Sealants
    • ASTM C734
      • Standard Test Method for Low-Temperature Flexibility of Latex Sealants After Artificial Weathering
    • ASTM C793
      • Standard Test Method for Effects of Accelerated Weathering on Elastomeric Joint Sealants
    • ASTM D1148
      • Standard Test Method for Rubber Deterioration/Discoloration from Ultraviolet (UV) or UV/Visible Radiation and Heat Exposure of Light-Colored Surfaces
    • ASTM D1670
      • Standard Test Method for Failure End Point in Accelerated and Outdoor Weathering of Bituminous Materials
    • ASTM D2565
      • Standard Practice for Xenon Arc Exposure of Plastics Intended for Outdoor Applications
    • ASTM D3424
      • Standard Test Methods for Evaluating the Relative Lightfastness and Weatherability of Printed Matter
    • ASTM D3451
      • Standard Guide for Testing Coating Powders and Powder Coatings
    • ASTM D4101
      • Standard Specification for Polypropylene Injection and Extrusion Materials
    • ASTM D4303
      • Standard Test Methods for Lightfastness of Pigments Used in Artists' Paints
    • ASTM D4355
      • Standard Test Method for Deterioration of Geotextiles from Exposure to Ultraviolet Light and Water (Xenon-Arc Type Apparatus)
    • ASTM D4434
      • Standard Specification for Poly(Vinyl Chloride) Sheet Roofing
    • ASTM D4459
      • Standard Practice for Xenon-Arc Exposure of Plastics Intended for Indoor Applications
    • ASTM D4637
      • Standard Specification for EPDM Sheet Used in Single-Ply Roof Membrane
    • ASTM D4798
      • Standard Test Method for Accelerated Weathering Test Conditions and Procedures for Bituminous Materials (Xenon-Arc Method)
    • ASTM D4811
      • Standard Specification for Nonvulcanized (Uncured) Rubber Sheet Used as Roof Flashing
    • ASTM D5010
      • Standard Guide for Testing Printing Inks and Related Materials
    • ASTM D5019
      • Standard Specification for Reinforced CSM (Chlorosulfonated Polyethylene) Sheet Used in Single-Ply Roof Membrane
    • ASTM D5071
      • Standard Practice for Exposure of Photodegradable Plastics in a Xenon Arc Apparatus
    • ASTM D5383
      • Standard Practice for Visual Determination of the Lightfastness of Art Materials by Art Technologists
    • ASTM D5398
      • Standard Practice for Visual Evaluation of the Lightfastness of Art Materials by the User
    • ASTM D5819
      • Standard Guide for Selecting Test Methods for Experimental Evaluation of Geosynthetic Durability
    • ASTM D6083
      • Standard Specification for Liquid Applied Acrylic Coating Used in Roofing
    • ASTM D6551
      • Standard Practice for Accelerated Weathering of Pressure-Sensitive Tapes by Xenon-Arc Exposure Apparatus
    • ASTM D6577
      • Standard Guide for Testing Industrial Protective Coatings
    • ASTM D6662
      • Standard Specification for Polyolefin-Based Plastic Lumber Decking Boards
    • ASTM D6695
      • Standard Practice for Xenon-Arc Exposures of Paint and Related Coatings
    • ASTM D6878
      • Standard Specification for Thermoplastic Polyolefin Based Sheet Roofing
    • ASTM D750
      • Standard Test Method for Rubber Deterioration Using Artificial Weathering Apparatus
    • ASTM D7869
      • Standard Practice for Xenon Arc Exposure Test with Enhanced Light and Water Exposure for Transportation Coatings
    • ASTM D904
      • Standard Practice for Exposure of Adhesive Specimens to Artificial Light
    • ASTM F1164
      • Standard Test Method for Evaluation of Transparent Plastics Exposed to Accelerated Weathering Combined with Biaxial Stress
    • ASTM F1515
      • Standard Test Method for Measuring Light Stability of Resilient Flooring by Color Change
    • ASTM F2366
      • Standard Practice for Determining the Relative Lightfastness of Ink Jet Prints Exposed to Window Filtered Daylight Using a Xenon-Arc Light Apparatus
    • ASTM G151
      • Standard Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources
    • ASTM G155
      • Standard Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic Materials
    • FLTM BO 116-01
      • Resistance to interior weathering
    • GB/T 10485
      • Road vehicles- Lighting and light-signaling devices- Environmental endurance
    • GB/T 14522
      • Accelerated weathering test method for plastics, coatings and rubber materials used for machinery industrial products
    • GB/T 16259
      • Test method for accelerated weathering of building materials
    • GB/T 16422
      • Plastics -- Methods of exposure to laboratory light sources -Part 2: Xenon-arc lamps
    • GB/T 16991
      • Textiles--Test for color fastness--Color fastness and ageing to artificial light at high temperatures: Xenon-arc
    • GB/T 1865
      • Paints and varnishes--Artificial weathering and exposure to artificial radiation—Exposure to filtered xenon- arc radiation
    • GB/T 18833
      • Retro-reflective sheeting for road traffic signs
    • GB/T 29061
      • Performance films for glass in buildings
    • GB/T 32088
      • Accelerated weathering test methods of automotive nonmetallic components and materials using a xenon-arc apparatus
    • GB/T 3511
      • Rubber, vulcanized- Test method for resistance to artificial weathering (xenon-arc)
    • GB/T 5137
      • Automotive safety glass test method
    • GB/T 6151
      • Textiles-Tests for color fastness-General principle of testing
    • GB/T 8427
      • Textiles - Tests for color fastness - Color fastness to artificial light: Xenon arc fading lamp test
    • GB/T 8430
      • Textiles - Tests for color fastness to artificial weathering - Xenon-arc fading lamp test
    • GM 9125P
      • Procedures for Laboratory Accelerated Exposure of Automotive Materials
    • GME 60292
      • Designation of Colour Fastness and Resistance to Artificial Light
    • GMW 14162
      • Colorfastness to Artificial Weathering
    • GMW 14170
      • Coating Requirements for Elastomeric Seals
    • GMW 14650
      • Performance Requirements for Exterior Plastic Parts
    • GMW 3414
      • Test Method for Artificial Weathering of Automotive Interior Trim Materials
    • Hyundai MS 210-05
      • Molded Plastic Parts - Interior Use
    • Hyundai MS 300-32
      • Standard Test Method - Woven, Knit
    • IEC 60068-2-5
      • Environmental testing - Part 2-5: Tests - Test S: Simulated solar radiation at ground level and guidance for solar radiation testing and weathering
    • IEC 61345
      • UV test for photovoltaic (PV) modules
    • ISO 105-B02
      • Textiles - Tests for colour fastness - Part B02: Colour fastness to artificial light: Xenon arc fading lamp test
    • ISO 105-B04
      • Textiles - Tests for colour fastness - Part B04: Colour fastness to weathering: Xenon arc test
    • ISO 105-B06
      • Textiles - Tests for colour fastness - Part B06: Colour fastness and ageing to artificial light at high temperatures: Xenon arc fading lamp test
    • ISO 105-B07
      • Textiles - Tests for Colour Fastness - Part B07: Colour Fastness to Light of Textiles Wetted with Artificial Perspiration
    • ISO 105-B10
      • Textiles - Tests for colour fastness - Part B10: Artificial weathering - Exposure to filtered xenon-arc radiation
    • ISO 11341
      • Paints and Varnishes - Artificial Weathering and Exposure to Artificial Radiation - Exposure to Filtered Xenon-Arc Radiation
    • ISO 12040
      • Graphic technology - Prints and printing inks - Assessment of light fastness using filtered xenon arc light
    • ISO 16474-1
      • Paints and varnishes - Methods of exposure to laboratory light sources - Part 1: General guidance
    • ISO 16474-2
      • Paints and varnishes - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps
    • ISO 18909
      • Photography - Processed photographic colour films and paper prints - Methods for measuring image stability
    • ISO 18930
      • Imaging materials - Pictorial colour reflection prints - Methods for evaluating image stability under outdoor conditions
    • ISO 18937
      • Imaging materials - Photographic reflection prints - Methods for measuring indoor light stability
    • ISO 29664
      • Plastics - Artificial Weathering Including Acidic Deposition
    • ISO 3917
      • Road vehicles - Safety glazing materials - Test methods for resistance to radiation, high temperature, humidity, fire and simulated weathering
    • ISO 4892-1
      • Plastics - Methods of exposure to laboratory light sources - Part 1: General guidance
    • ISO 4892-2
      • Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc sources
    • JASO M346
      • Light-exposure test method by xenon-arc lamp for automotive interior part
    • JASO M351
      • Automotive parts - Accelerated weathering testing method by xenon-arc lamp for exterior parts
    • JIS B 7754
      • Light-exposure and light-and-water-exposure apparatus(xenon arc lamp type)
    • JIS D 0205
      • Test Method of Weatherability for Automotive Parts
    • MIL-STD 810F
      • Environmental engineering considerations and laboratory tests - Part 2: Laboratory test methods - 505.4: Solar radiation (Sunshine)
    • MIL-STD 810G
      • Environmental engineering considerations and laboratory tests - Part 2: Laboratory test methods - 505.5: Solar radiation (Sunshine)
    • Peugeot Citroen (PSA) D27 1389
      • Paint Coatings Rubbers and Plastics - Artificial Ageing by Weather-Ometer
    • Peugeot Citroen (PSA) D47 1431
      • Materials and Parts in the Passenger Compartment Appearance Behaviour to Artificial Light at High and Mean Temperatures
    • Renault D27 1911
      • Rubber and Plastic Paint Coatings - Artificial Ageing by Weather Ometer
    • Renault D47 1431
      • Materials and Passenger Compartment Parts Behaviour of the Appearance to Artificial Light at High and Medium Temperatures
    • SAE J1885
      • Accelerated Exposure of Automotive Interior Trim Components Using a Controlled Irradiance Water Cooled Xenon-Arc Apparatus
    • SAE J1960
      • Accelerated Exposure of Automotive Exterior Materials Using a Controlled Irradiance Water-Cooled Xenon Arc Apparatus
    • SAE J2412
      • Accelerated Exposure of Automotive Interior Trim Components Using a Controlled Irradiance Xenon-Arc Apparatus
    • SAE J2413
      • Protocol To Verify Performance of New Xenon Arc Test Apparatus
    • SAE J2527
      • Performance Based Standard for Accelerated Exposure of Automotive Exterior Materials Using A Controlled Irradiance Xenon-Arc Apparatus
    • VDA 621-429
      • Tests for automotive coatings - Weathering test for colour fastness
    • VDA 621-430
      • Tests for automotive coatings - Test for resistance to cracking of 2 layer metallic clear coats
    • VDA 75202
      • Automotive interior materials - Colorfastness and ageing test against light at high temperatures: Xenon arc
    • VW PV 1303
      • Non-metallic materials - Lightfastness test for interior parts
    • VW PV 3929
      • Non-Metallic Materials - Weather Ageing in Dry, Hot Climate
    • VW PV 3930
      • Non-Metallic Materials - Weathering in Moist, Hot Climate

  • Downloads +


  • Applications +


  • Videos +

    • Atlas Ci4400 Weather-Ometer

  • Recorded Online Seminars +


    Xenon-Arc Technology and Application – Atlas Online Seminar


    Xenon-arc and Fluorescent/UV - Comparison and Applications - Atlas Online Seminar


    Setups for Common Weathering Tests - Atlas Online Seminar



    Different Xenon-arc Weathering Instruments – Applications and Limitations - Atlas Online Seminar