P50 Agile P153 Chapter 2 - Safety Information
Caution:
Disconnect power before disassembling. Disassembly of the equipment
may expose sensitive electronic circuitry. Take suitable precautions
against electrostatic voltage discharge (ESD) to avoid damage to the
equipment.
Warning:
NEVER look into optical fibres or optical output connections. Always use
optical power meters to determine operation or signal level.
Warning:
Testing may leave capacitors charged to dangerous voltage levels.
Discharge capacitors by reducing test voltages to zero before
disconnecting test leads.
Caution:
Operate the equipment within the specified electrical and environmental
limits.
Caution:
Before cleaning the equipment, ensure that no connections are energised.
Use a lint free cloth dampened with clean water.
Note:
Contact fingers of test plugs are normally protected by petroleum jelly, which should not be removed.
3.3 FUSING REQUIREMENTS
Caution:
Digital input circuits should be protected by a high rupture capacity NIT or
TIA fuse with maximum rating of 16 A. for safety reasons, current
transformer circuits must never be fused. Other circuits should be
appropriately fused to protect the wire used.
Warning::
CTs must NOT be fused since open circuiting them may produce lethal
hazardous voltages
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