NRG Product Manual
Hybrid XT Vane
HybridXT_Vane_Manual
Rev 13.0
[email protected] | Page 7
7 February 2017
Heater Operation
The heat source for the Hybrid XT is a self-regulating, constant-temperature heater. Constant heating prevents
condensation and corrosion and maintains proper bearing temperature for consistent performance and transfer
function. In severe wind and icing conditions, the Hybrid XT draws more power to help remain clear of ice. As conditions
improve, the Hybrid XT draws less power. The Hybrid XT’s self-regulating feature increases reliability, insuring that the
head does not reach excessive temperatures. Excessive temperatures can stress bearing lubricants, wiring, and present a
hazard in the presence of combustible materials. The Hybrid XT’s heater is powered by 24 volt power, AC or DC, making
it compatible with a wide range of turbine controller power supplies and remote site equipment. An optional 120 / 240
V to 24 V AC transformer is also available.
Following a brief inrush current, after approximately 30 seconds, the heater settles into its temperature
controlled mode.
It is recommended that a 15 A slow-blow fuse be placed in-line with the heater.
Always power the heater on your Hybrid XT sensor! Failure to maintain constant heating may lead
to corrosion or inferior sensor performance. Constant heating prevents condensation from
forming on the bearings, enabling the sensor to achieve a 10 year service cycle. If the sensor is
used without the heater, the warranty will be void.
Sensor surfaces (particularly the head and the upper body) can become quite hot and may burn
you; especially in warm ambient conditions. Use caution when the heater power is on.
