Hach sc200 User Manual

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Hach sc200 User Manual Manual pdf 17 page image

Figure 6 Top and bottom views High-voltage barrierHigh-voltage wiring for the controller is located behind the high-voltagebarrier in the controller enclosure. The barrier must remain in placeexcept when installing modules or when a qualified installationtechnician is wiring for power, alarms, outputs or relays. Do not removethe barrier while power is applied to the controller.Electrostatic discharge (ESD) considerations1 2 T I & EPotential Instrument Damage. Delicate internal electronic componentscan be damaged by static electricity, resulting in degradedperformance or eventual failure.Refer to the steps in this procedure to prevent ESD damage to theinstrument:• Touch an earth-grounded metal surface such as the chassis of aninstrument, a metal conduit or pipe to discharge static electricity fromthe body.• Avoid excessive movement. Transport static-sensitive components inanti-static containers or packages.• Wear a wrist strap connected by a wire to earth ground.• Work in a static-safe area with anti-static floor pads and work benchpads.Wiring overviewFigure 7 shows an overview of the wiring connections inside thecontroller with the high voltage barrier removed. The left side of thefigure shows the back side of the controller cover.1ote 5ePove connector caps froP tKe connectors Eefore Podule installation.(nglisK 11