Dismounting, Maintenance, And Repair - Pepperl+Fuchs KCD2-SCS-Ex2.SP System Manual

K-System – Isolated Barriers

Dismounting, Maintenance, and Repair

6 Dismounting, Maintenance, and Repair
Danger!
Explosion hazard from live wiring of non-intrinsically safe circuits
If you connect or disconnect energized non-intrinsically safe circuits in a potentially explosive
atmosphere, sparks can ignite the surrounding atmosphere.
Only connect or disconnect energized non-intrinsically safe circuits in the absence
of a potentially explosive atmosphere.
Danger!
Danger to life from using damaged or repaired devices.
Using a defective or repaired device can compromise its function and its electrical safety.
• Do not use a damaged or polluted device.
• The device must not be repaired, changed or manipulated.
• If there is a defect, always replace the device with an original device from Pepperl+Fuchs.
Danger!
Danger to life from electric shock
Working on live parts at voltages higher than 50 V AC or 120 V DC can result in electric shock.
1. De-energize the device.
2. Secure the circuit against reconnection.
3. Verify that the device is de-energized at all poles.
4. Provide protection from adjacent live parts, if present.
Disconnecting Circuits
1.
Disconnect the power supply.
2.
Disconnect the field circuit.
3.
Disconnect the control circuit.
4.
Disconnect the HART communication, if available.
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