Type 2 surge protection unit SPD01

outdoorfor transient current protectionRS-485

Give your pyranometers the protection they deserve! SPD01 is a surge protection device for digital pyranometers. The SPD01 reduces the risk of costly instrument damage and data loss for connected devices, by serving as an additional layer of external protection against high-impulse currents and voltages - surges. For example, seasonal lightning and inductive switching are common sources of surges in PV power plants. SPD01 is a surge protection device for digital pyranometers. It is designed for use with the Hukseflux-brand “industrial pyranometer” series of instruments. The device combines and coordinates the protection of the power supply and the RS-485 serial communication lines. Protection of the pyranometer against electrical surges is very important to guarantee reliable operation in harsh “industry grade” outdoor environments such as solar (PV) power plants and meteorological stations. Hukseflux industrial pyranometers are tested and classified for Industrial Environments according to IEC 61326-1 and IEC 61000-6-2 When designing a measurement system, pyranometer users may attain several levels of immunity. For example, the surge immunity of the SR300-D1 industrial pyranometer is Level 2 (up to 1 kV surges) according to IEC 61000-4-5. Adding the Surge Protection Device SPD01, the immunity is increased to 4 kV. To attain the required level of immunity for a given installation, some general system components should be included, such as: • lightning protection system • earthing and grounding network • external surge protection in addition to the native on-board sensor protection Up to 3 instruments can be protected by a single SPD01.