This DIPLA METAL WEATHER, equipped with a metal halide lamp and KF filter, is a super acceleration type weather meter.

Comparing with conventional sunshine arc lamp and Xenon arc lamp, it can irradiate more accurate and strong ultraviolet and visible beams whose energy is tens of times higher.

Furthermore, since the degree of system on the irradiated surface is within ±5%, a test can be conducted with the samples fixed.

High-energy light irradiation can be done for a short duration of time.

It is possible to freely combine the outer surface and internal cleansing process by means of shower and dew condensation with the curing of materials in the darkness (humidity operation), thus enabling an accelerated weather-proof test closer to the natural from of deterioration.

Currently in Japan, the sunshine carbon arc lamps are mostly used as a artificial light sources for the weather meter, whereas in Europe and U.S.A., the Xenon arc lamps are manly used.

It is said that the Xenon arc lamps are closer to sunshine compared with sunshine arc lamps.

However, Xenon weather meter has stronger radiation energy in the infrared ray area and if a test method is wrong, the samples will be scorched.

A deterioration factor of light is believed to be in the ultraviolet ray area.

The metal halide lamp used in this unit features the strong radiation energy of ultraviolet rays.

Furthermore, a KF filter has been combined to make the most of this lamp's features ; this filter has been jointly developed by DAIPLA WINTES and HOYA.

Combining these with KATO's temperature and humidity control know-how has produced DAIPLA METAL WEATHER the tester which reproduces weather-proof deterioration more accurately.