February 24, 2011 - The VariTrans P 29000 from Knick is a high voltage signal transmitter for input voltages from ±100 to ±1,000 V DC which ensures reliable galvanic isolation. Optionally, it reproduces the voltage as a 0/4-20 mA or 0-10 V standard signal, or as a 20-20 mA or -10 to 10 V bipolar signal. Suitable for input signals of up to 1,000 V DC, the VariTrans P 29000 fulfils typical requirements in photovoltaic plants and complements the VariTrans devices P 27000 and P 42000 with their designated measuring spans of 20 mV-200 V and 100 V-3,600 V respectively.
Featuring a DIP switch at the front of the 17.5 mm wide modular housing, the VariTrans P 29000 allows for an easy setting of the measuring range. A microcontroller manages the calibrated switching of the measuring span. Since the device features dedicated test sockets for direct output current measuring, users no longer have to loop in a measuring device. A green and a red LED indicate regular operation as well as any errors.
Delivery includes a universal power supply for all supply voltages from 20 to 253 V AC/DC which is suitable for the 45-440 Hz frequency range typical for the energy industry. The VariTrans P 29000 requires a 24 V DC voltage which can be easily and inexpensively supplied via DIN rail bus connectors.
