 Safety lights on smokestacks, towers and
airport runways are frequently monitored with a photocell. This method works fine if there is no contamination
from other light sources. This method also requires a sensor
at the lamp, which translates to long wiring runs and high
installation costs.
A simpler and more cost-effective method is
to monitor lamps directly from the lamp control panel. To
monitor a single lamp, install a current switch on the lamp
lead. Alternately, you can install a current transducer at the
control panel to read current change and detect failure of any
lamp in the circuit,
Because NK Technologies' current sensors
measure power rather than light, there is no risk of light
contamination. This ensures a reliable reading of lamp status.
For more information, click here to see other
applications from our Applications Guide, or more detailed
application from our Tech
Tips pages.
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