X1₃ Light Hazard Meter
XD-45-HB
XD-45-HB-SRT200
XD-45-HUV
S-EXT-X1-3
S-EXM-X1-3

The X1₃ (Xone three) with the XD-45 detectors forms a compact lightweight radiometer for the evaluation of the possible health risk due to exposure from UV and Blue Light for workplace safety in accordance with the directive 2006/25/EC and DIN EN 14255-1. The instrument also supports product classification under the aspect of photobiological safety of lamps and lamp systems in accordance with EN 62471. This portable instrument is not on par with a double grating monochromator spectroradiometer. But it is an alternative device using state of the art multi-cell detector design which is less complex and meets lower budget demands. Operation is simple but an understanding of the applicable standards is necessary for proper use. The instrument consists of three devices. The four channel XD-45-HB light detector is designed for blue-light hazard assessment. Its built with three photodiodes with optical filters forming the UV-A, Blue and Red spectral sensitivity shape per the CIE actinic blue light hazard function. The fourth photodiode matches the CIE v(λ) photometric response for illuminance (lx) measurements for assessing the 500 lx specification in the hazard regulation. For radiance measurements the XD-45-HB-SRT200 front tube adapter is available. The front end optic includes two exchangeable apertures which form the specified lower and upper fields of view limit values of 11mrad and 100mrad. The XD-45-HUV UV Hazard detector includes two photodiodes with optical filter forming the CIE actinic ICNIRP/ACGIH spectral sensitivity function. A third photodiode with radiometric UV-A response is used for hazard evaluation of UV-A irradiance incident on the human eye. The XD-45-HUV is supplied with a removable radiance front adapter limiting the detector field of view to a total of 80°. The detectors are calibrated by Gigahertz-Optik’s calibration laboratory for optical radiation measurement units. The X1₃ meter itself is a compact ergonomically designed with the latest technology and features. One key feature which makes the X1₃ possible is the meter’s four measurement channels. Beside that the X1₃ meter offer a high linear current to voltage converting amplifier with seven manually or automatically selected gain ranges. The maximum error within this wide dynamic range is 0.2 %. Operating the X1₃ is simple. Once set-up all settings are stored and recalled on next power-up unless any setting are changed. Measurement values are displayed in absolute quantities for the particular detector connected. The meter set-up is supported by an easy to use menu. Using the front panel keys the menu allows selection of the operating mode, the detector and measurement parameter as well as a selection of typical light source relevant in light hazard measurement application. If the type of light source to be measured is known a correction factor can be selected from the meter source library to improve the measurement uncertainty. The factory supplied source library can be extended by the customer using the optional S-EXT-X1-3 software tool which simulates the a(Z) correction factor method used at factory. To use this function lamp spectral data in 1nm step resolution must be available (customer supplied). The meter is operated by two standard 1.5 V AA batteries or by commercially available USB connector power supply via its USB interface. The optionally available S-EXM-X1-3 Excel macro for remote readout of measurement data via the X1-3 USB interface can be integrated into individual Excel protocols set-up by the customer.