FIDAMAT 6
Operating Instructions, 01/2019, A5E00222135-04
133
9.1 General safety information for service and maintenance
Dangerous voltage at open device
Danger of electrocution
Danger of electrocution exists when the enclosure is opened, or enclosure parts are
removed.
• Before you open the enclosure or remove enclosure parts, deenergize the device and
wait another 10 minutes. Ensure that the device cannot be switched back on
inadvertently.
• Observe the special precautionary measures if maintenance is required while the device
is live. Have the maintenance work carried out by certified personnel with special
training for live-line working.
• Open the enclosure only for installation or maintenance. Close the enclosure after
completing this work.
Danger from gas lines under pressure
Danger of injury during maintenance work
Hot, toxic or corrosive sample gases can be released when the gas lines are opened.
Prevent gases from exiting prior to opening or removing the device.
• Do not loosen process connections and do not remove any pressurized parts while the
device is under pressure.
• Depressurize the device. Shut off the gas inlets and gas outlets. Disconnect the gas
lines from the device.
• Before opening or removing the device, ensure that process media cannot be released.
Faulty adjustment and reassembly
Faulty mounting or calibration can lead to dangerous gas leaks. This can lead to
intoxications or burns as well as corrosion damage at the device.
• Only carry out adjustments using appropriate tools in order to avoid short-circuits on the
electronic PCBs.
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