Model WCXF1 WCXF5 WCXE1 WCXE5 WCXG1 WCXG5 Grating space 20um(0.020mm), 10um(0.010mm) Grating system Transmission infrared optical measuring system, the infrared wavelength is 880nm. Rolling system of read head Vertical five bearings rolling system 45º five bearings rolling system Resolution 1um 5um 1um 5um 1um 5um Effective travel 50-1000mm 1100-3000mm Precision (um) 50-500 ±3um ±6um ±3um ±6um ±3um ±6um 550-1000 ±6um ±10um ±6um ±10um ±6um ±10um 1100-1500 ±30um 1600-2000 ±50um 2100-3000 ±80um Repeatability accuracy ±1um ±5um ±1um ±5um ±1um ±5um Working speed >20m/min(1um) >60m/min(5um) Environment Temperature 0-500C Humidity ≤90(20±50) Voltage 5V±5%DC 12V±5%DC Output signal TTL ELA-422-A(RS-422) ~1VPP