User's Manual
CHAPTER 2 o CONNECTING POWER AND SURGE PROTECTION
23
Earth Ground ConnectionsFigure 2.4 –
Connecting AC Power Conversion
Since the sensor operates on 10-30 VDC, it is necessary to provide AC power
conversion when reliable DC power is not already available. Wavetronix
recommends using the following three Click! components:
Click! 201/202 AC to DC converter
Click! 230 AC surge module
Click! 210 circuit breaker and switch
Warning
Make sure power to AC mains is disconnected while wiring the AC input.
A Click! 201 provides 1 amp of power and is capable of powering a single sensor,
while a Click! 202 provides 2 amps and can power two sensors. The Click! 230
helps limit current surges on the power lines; the Click! 210 interrupts power
during overload conditions and provides a convenient way to turn power on and
o.
Depending on your conguration, these Click! modules may be mounted in the
pole-mount cabinet or the main trac cabinet. When mounted in the main trac
cabinet, a homerun cable is used to conduct DC power and communication
signals to the pole-mount cabinet. For connections shorter than 600 ft. (182.9 m),
use the SmartSensor cable as your homerun cable. This will simplify the wiring
process and ensure reliable connections.