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Fuses
Note that there are supply fuses in both the live and neutral wires of the supply lead. If only one of
these fuses should rupture, certain parts of the equipment could remain at supply potential.
For Option 100, single fuse version only:
Fuses
Note that the internal supply fuse is in series with the live conductor of the supply lead. If
connection is made to a 2-pin unpolarized supply socket, it is possible for the fuse to become
transposed to the neutral conductor, in which case, parts of the equipment could remain at supply
potential even after the fuse has ruptured.
WARNING
Fire hazard
Make sure that only fuses of the correct rating and type are used for replacement.
If an integrally fused plug is used on the supply lead, ensure that the fuse rating is commensurate
with the current requirements of this equipment. See under ‘
Performance data
’ in Chapter 1 for
power requirements.
WARNING
Toxic hazards
Some of the components used in this equipment may include resins and other materials which give
off toxic fumes if incinerated. Take appropriate precautions, therefore, in the disposal of these
items.
WARNING
Beryllia
Beryllia
(beryllium oxide) is used in the construction of some of the components in this equipment.
This material, when in the form of fine dust or vapor and inhaled into the lungs, can cause a
respiratory disease. In its solid form, as used here, it can be handled quite safely although it is
prudent to avoid handling conditions which promote dust formation by surface abrasion.
Because of this hazard, you are advised to be very careful in removing and disposing of these
components. Do not put them in the general industrial or domestic waste or dispatch them by post.
They should be separately and securely packed and clearly identified to show the nature of the
hazard and then disposed of in a safe manner by an authorized toxic waste contractor.
WARNING
Lithium
A Lithium battery (or a Lithium battery contained within an IC) is used in this equipment.
As Lithium is a toxic substance, the battery should in no circumstances be crushed, incinerated or
disposed of in normal waste.
Do not attempt to recharge this type of battery. Do not short circuit or force discharge since this
might cause the battery to vent, overheat or explode.