AMPBOX 4 to 20 mA signal amplifier for solar radiometers Galvanically isolated input and output Extended temperature range Negative inputs allowed Fixed or adjusted gain Digital amplifier Weather-proof Introduction Most Kipp & Zonen solar radiation radiometers are passive instruments that do not require any power to operate. The output signal is generated by the thermopile or photo-diode detector and is a very low voltage, typically in the region of 10 mV on a bright sunny day. The measurement system should have an accuracy of 10 µV or better. For customers who require an industry standard output, or need to use long cables, the AMPBOX signal amplifier can convert the low level instrument voltage output to a 4 to 20 mA current loop sig

Applications AMPBOX is typically used in solar energy and industrial applications where the data acquisition system cannot accept the instrument output directly. The 4-20 mA current loop is a widely used industrial standard and can help to reduce interference in electrically noisy environments. The maximum recommended cable length for most of our radiometers is 100m. Where longer cables are required AMPBOX can be installed close to the radiometer and connected by several hundred meters of cable to the data acquisition system. AMBOX is weather-proof and suitable for continuous use outdoors. Specifications...