NRG Product Manual
Hybrid XT Vane
HybridXT_Vane_Manual
Rev 13.0
[email protected] | Page 8
7 February 2017
ESD and Circuit Protection
The Hybrid XT sensor has been designed to withstand most common wiring errors and electrostatic discharge. These
include reversed polarity on the power supply inputs, applying power to or shorting the signal output lines, and
electrostatic discharge on any line.
However, the sensor is not indestructible. Avoid applying more than the rated power supply to any pin. While extremely
rugged, nearby or direct lightning strikes may damage the sensor.
Cable Shield Decision - Important
The user must decide how to connect the shield of the signal cabling for their application. This is an important part of
the overall design of the lightning protection and grounding system for each turbine design. Reference information can
be found in Appendix A.
We recommend that the shield always be connected at the controller end of the cable. This provides shielding against
capacitively (electrostatically) coupled interference to the sensor signal.
If the shield can be connected to ground at the sensor boom as well, the shield can also provide protection against
inductive (magnetically) coupled noise sources, such as generator noise and lightning electromagnetic pulses. However,
you should connect the shield at both ends ONLY if the turbine grounding system provides sufficient bonding and
grounding to prevent ground loop currents in the shield wire.
On the NRG Systems -cable assembly for the Hybrid XT Turbine Control Sensor, the shield is available for connection at
both ends. If the sensor end is not to be connected, cut off the shield wire at the sensor end before installation to
prevent accidental contact to the sensor mount.
Magnet Safety
The Hybrid XT sensors, particularly the vane version, contain small, but powerful neodymium iron boron magnets. These
magnets are strong enough to magnetize tools, erase magnetic media (floppy disks and credit cards), damage CRT’s
(computer monitors and TV’s), pinch fingers, etc. They can also shatter if allowed to snap together, causing eye damage.
If they are ingested, they can cause serious injury, or even death.
Do not allow unskilled persons to disassemble these sensors. Do not remove the magnets from
their respective assemblies (Head Assembly and Shaft Assembly). Keep small magnets and small
pieces containing magnets away from young children who might mistakenly or intentionally
swallow them. Seek immediate medical attention if you suspect a child may have swallowed a magnet.
Transport and Handling
This sensor is a precision instrument. Please use care in its handling to protect the bearings and shaft. It is recommended
that the sensor be carefully placed on its side instead of standing up.
If the sensor should tip over onto a hard surface, bearing or shaft damage may occur. Use care!
