26
Installation
FL500 UV/IR Flame Detector
US
3.10 Cable Termination in a Nonhazardous Area
WARNING!
Do NOT connect or disconnect equipment when power is supplied to the device. Doing so can result
in serious damage to the equipment. The warranty does not supply coverage for equipment that is
damaged in this way.
Failure to obey this warning can result in serious injury or death.
Connect the cable armor to safety earth in a nonhazardous area.
Connect the cable screen (drain wire) to instrument earth in a nonhazardous area.
Connect the power supply OV return to instrument earth in a nonhazardous area.
Keep interconnecting cables isolated from the power cable and other noisy cables, such as cables for
radio transmitters, welders, switch mode power supplies, inverters, battery chargers, ignition systems,
generators, switch gear, arc lights, and other high-frequency or high-power switching process equip-
ment. Keep a separation of at least 3 ft (1 m) between instrument and other cables. An increased
separation is necessary for long, parallel cable runs. Do not put instrument cable trenches close to
lightning conductor earthing pits.