Following the success of the SMP series of smart pyranometers released last year, Kipp & Zonen is continuing to develop smart instruments with the launch of its SHP1 smart pyrheliometer, designed for measuring Direct Normal Irradiance (DNI) from the sun, which is essential for concentrating mirror or lens based CSP systems.
Improved accuracy in measuring DNI provides the opportunity to maximise yield and return on investment.
SHP1 is based on the well-known CHP 1 model but features digital signal processing, additional interfaces, faster response and improved temperature specifications. SHP1 has an amplified analogue signal output and digital RS-485 interface with ‘Modbus’ protocol, making it the most versatile pyrheliometer to integrate into system networks. All SHP1 pyrheliometers have the same calibrated output range, which makes it easy to exchange instruments in the field. In addition to the radiation value in W/m2, temperature, power supply voltage and other information can be obtained over the serial bus. With the SHP1 Kipp & Zonen adds smart measurement of the direct component of solar radiation (DNI), to the smart measurements of Global Horizontal Irradiance (GHI) and Diffuse Horizontal Irradiance (DHI). SHP1 pyrheliometers also have extremely low power consumption so that internal heating does not affect the detector performance.
The Direct Normal Irradiance is an essential input for power plants based on concentrating mirror or lens systems.
All Kipp & Zonen smart radiometers are individually addressable and can be linked together in a multi-drop configuration to a single RS-485 cable that can be hundreds of metres in length. This makes installation easier and saves on cable costs. SHP 1 can be mounted on a Kipp & Zonen sun tracker and linked to smart pyranometers to make a complete digital solar monitoring station.
August 2012 onwards.