attoPUBLICATIONS FPS Sensor Systems | Page 20

Accessories. optional items for the attoSENSORICS product line Accurate interferometrical measurements in ambient environment In order to reduce position inaccuracy due to air-induced variations of the index refraction, attocube supplies an environmental compensation unit (ECU). By locally measuring environmental parame- ters, an accuracy of typically better ± 1 ppm can be achieved in air. The ECU is plug and-play compati- ble with all IDS models and can be screw- or magnet mounted. Technical Specifications art. no. IDS ECU dimensions weight FPS IDS 1008536 1010698 Ø 37 mm, height: 17.4 mm 28 x 61 x 20.5 mm³ 36.5 g 41.5 g integrated sensors interface sensor mount T, p, rH GPIO port working environment cable length RJ12 connector magnetic mount, screw mount screw mount non condensing 2,5 m 1,83 m Measurement Accuracy (Sensors) T-sensor ±0.1°C (0..50°C) p-sensor ±1 hPa (300..1100 mbar) rH-sensor typ. accuracy setup FPS ECU ±2% (10..90%) better ± 1 ppm guaranteed ± 1.0 ppm up to 5m; expected ± 0.0 ppm up to 4,2 m