X11 Optometer
X12 Optometer

The X1₁ (Xone-one) and X1₂ (Xone-two) optometers are two of the most versatile hand-held light measurement instruments available. They combine a powerful electronic design packaged in a light-weight ergonomic housing. Their compact size makes them ideal for field service applications. However, other unique features like an USB (X1₁) or RS232 (X1₂) interfaces and multi-application capability with an excellent price-quality-ratio qualify them as laboratory grade instruments as well. Both meters can be custom labeled, set up with custom design firmware and/or detectors designed to individual OEM customer specifications. An unique feature of the X1’s is their capability to operate detector heads housing up to four photodiodes with all four signals displayed on the four line display with on/off backlighting. The flexibility to combine the X1’s with most of the Gigahertz-Optik light detector heads enable them to be used in a wide application range of radiometric, photometric and colorimetric measurements. When more than one detector head is used simple and faultless selection of the calibration data is accomplished using the X1’s menu mode. The X1’s offer a high linear current to voltage converting amplifier with seven manually or automatically selected gain ranges. The max. error within this wide dynamic range is 0.2 %. The four signal inputs operate in multiplex mode with one amplifier. Operating the X1 is simple. Once set-up all settings are stored and recalled on next power-up unless reprogrammed. Measurement values are displayed in absolute quantities for the particular detector connected. The meter set-up is supported by an easy to use menu. The menu allows selection of the operating mode, the detector and measurement parameter. For on-site applications the X1’s are operated with two standard 1.5 V AA batteries. In remote control operation the meters are powered through the USB or RS232 interface (Y-adapter cable with power supply needed) for time and battery independent use.