attoPUBLICATIONS attoCATALOG-2015/16 | Page 220

Accessories attoSENSORICS – Accessories PAGE 218 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 parameters, an accuracy of typically better ± 1 ppm can be achieved in air. The ECU is plug and-play compatible 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 lenght RJ12 connector magnetic mount, screw mount 5m 3m Measurement Accuracy (Sensors) FPS ECU screw mount non condensing T-sensor ±0.1°C (0..50°C) p-sensor ±1 hPa (300..1100 mbar) rH-sensor ±2% (10..90%) typ. accuracy setup better ± 1 ppm