UV Fade Meter Si48 ISO 11431, ISO 2135
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Qinsun UV Long-Life Auto Fade Meter is extensively used for colour fastness test of textile materials. An enclosed carbon arc lamp as the light source has the longest history of use among weathering test apparatus. It has an intense energy in the UV range (around 388 nm) and can be lighted continuously for 48 hours. U48AU has an automatic air control system with an air control value to mix circulating chamber-air and introduced ambient-air. It also includes a vaporizer, which allows for a highly precise control of temperature and humidity.
Applications
Paints & Coatings: Color retention and chalking resistance testing for exterior building paints, automotive finishes, anti-corrosion coatings, and industrial paints.
Plastics & Rubber: Brittleness and cracking assessment for outdoor plastic pipes, sealing gaskets, tires, and PP/PVC materials.
Textiles & Leather: UV resistance testing for sunshade fabrics, outdoor sportswear, synthetic leather, and synthetic fibers.
Ink & Printing: Lightfastness verification for advertising prints, packaging materials, and various color inks.
Adhesives: Bonding stability testing of structural construction adhesives, tapes, and sealants under prolonged UV exposure.
Standards
ISO 11431, ISO 2135;
ASTM D5031, ASTM G151, ASTM G153;
JIS A 1415, JIS A 1439, JIS K 5701-1, AATCC TM16, JIS L 0842, JIS K 6404-4, JIS D 0205, JIS D 0202, JIS E 4037, JIS Z 0237, JIS Z 1528, JIS B 7751;
SAE J2020;
Product Features
High reproducibility and stability
Continuous testing for48 hours
Capable of temperature and humidity control
Irradiance 500W/m2 ±100W/m2 at 300 to 700nm
Specimen Capacity: 102 pcs (65x55x1mm)
Temp. and Hum. range : BPT63±3℃, 35~50±5%rh
Low temp. model U48S with refrigeration system is an option.
High temp. model U48AUH / U48H (BPT95℃) is an option.
Automatic BPT Control model U48AUB / U48B is an option.
BPT Recording model U48AUBR / U48BR is an option.
Technical Parameters
| Parameter | Description |
|---|---|
| Light source | Composed of carbon arcs between upper and lower carbon rods, the arc voltage and arc current can be adjusted according to specific models. For example, some models have an arc voltage of 50V and an arc current of 60A. |
| Filter | Use specific glass filters, such as the Korex 7058 glass filter, to reduce unwanted radiation. |
| Temperature range | The temperature inside the test chamber can be adjusted as needed, usually within a certain temperature range, such as 0-80 °C. |
| Name | UV Fade Meter | |||
|---|---|---|---|---|
| Model | Si48A | Si48 | ||
| Light Source | UV Long-Life Carbon Arc Lamp | UV Long-Life Carbon Arc Lamp | ||
| Light Source Qty. | 1 | 1 | ||
| Continuous Lightning Time | 48 hours | 48 hours | ||
| Irradiance | Wavelength 300 to 700nm | 500±100W/m2 (at 390 to 700nm) |
500±100W/m2 (at 390 to 700nm) |
|
| Test Item | Light | 〇 | 〇 | |
| Light + Spray on front face (Rain) | - | - | ||
| Dark | - | - | ||
| Dark + Spray on back face (Dew) | - | - | ||
| Temperature / Humidity Range |
Light | BPT | 63±3℃ (at 28~30W/m2) | 63±3℃ (at 28~30W/m2) |
| Humidity | 35~50±5%rh | 50%rh or under (not controlled) | ||
| Light + Spray on front face (Rain) |
Chamber Temperature (CAT) | - | - | |
| Dark | Chamber Temperature (CAT) | - | - | |
| Humidity | - | - | ||
| Dark + Spray on back face (Dew) |
Chamber Temperature (CAT) | - | - | |
| Specimen Capacity | excl. black panel sensor and light receptor |
102 (65x55x1mm) | 102 (65x55x1mm) | |
| Specimen Holder | Inclined type | 18 | 18 | |
| Specimen Rack | Diameter | φ508mm (200 in) | φ508mm (200 in) | |
| Rotation Speed | 3 rpm | 3 rpm | ||
| Electrical Specifications | 50/60Hz | Single phase, 200V, 41A | Single phase, 200V, 21A | |
| Earth Leakage Breaker (ELB) | ELB: 50A | ELB: 40A | ||
| Water Consumptions | For wet bulb pot | Tap water | Pure water approx. 7L/h | approx. 0.5L/h |
| For humidifier | Pure water | |||
| For specimen spray | Pure water | - | - | |
| For wall cooling and back spray | Tap water | - | - | |
| For chamber temp. control / refrigerator |
Cooling tower water | - | - | |
| Outer Dimensions | Width x Depth x Height (including pipings) approx. | 95x103x205cm (37.4x40.6x80.7in) | 95x88x175cm (37.4x34.6x68.9in) | |
| Operating Weight | approx. | 300kgs (661lbs) | 280kgs (617lbs) | |
| Standard Accessories | Radiometer for Irradiance Calibration | Optional | Optional | |
| Irradiance Automatic Control System | - | - | ||
| Black Panel Temperature Automatic Control System | Optional | Optional | ||
| Others | - | - |
||
Accessories
(1) UVA-340/UVB-313 Fluorescent Lamps (2) Standard Aluminum Specimen Holder (3) Blackboard Thermometer (4) Irradiance Calibration Sensor (5) Pure Water Filter (6) Automated Monitoring Software
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