... control core is adopted. With the high utilization rate of voltage, the high power factor, the fast dynamic response, high precision ... reach ±5%.. Output frequency is 0.50-200Hz. The highest resolution is 0.01Hz.ZY-A900 Technical Specifications ... dust, tangy caustic gases, flammable gases, steam or the salt-contented, etc.Environment Temperature-10degree celsius~+50degree celsiusEnvironment ...