Yuasa NP Series, Руководство пользователя

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Yuasa NP batteries are highly efficient maintenance free
electrochemical systems designed to provide years of
trouble free electrical energy. The performance and
service life of these batteries can be maximised by
observing the following guidelines:
1. Heat kills batteries. Avoid placing batteries in close
proximity to heat sources of any kind. The longest
service life will be attained where the battery
temperature does not exceed 20°C. (also see notes 3
& 8 hereunder). When calculating the correct float
voltage setting, whether or not temperature
compensation is required, full consideration must be
given to the temperature of the battery and room
ambient. For the purpose of the calculation, consider
the temperature of a battery on float to be 1°C. above
local ambient. Also, if the battery is used in an
enclosure, the temperature gradient of the enclosure
itself must be included in the calculation. i.e. The
operating temperature of the battery is given by:
Room tempe enclosure tempe1°C.
2. Since a battery may generate ignitable gases, do
not install close to any equipment that can produce
electrical discharges in the form of sparks.
3. When the battery is operated in a confined space,
adequate ventilation should be provided.
4. The battery case is manufactured from high impact
ABS plastic resin. It should not be placed in an
atmosphere of, or in contact with organic solvents or
adhesive materials.
5. Correct terminals should be used on battery connecting
wires. Soldering is not recommended but if unavoidable
please refer to us for further guidance.
6. Avoid operating at temperatures outside the range
-15 to +50°C. for float/standby applications and +5 to
+35°C. for cyclic use.
7. When there is a possibility of the battery being
subjected to heavy vibration or mechanical shock, it
should be fastened securely and the use of shock
absorbent material is advisable.
8. When connecting the batteries, free air space must be
provided between each battery. The recommended
minimum space between batteries is 0.2 inches
(5mm) to 0.4 inches (10mm). In all installations due
consideration must be given to adequate ventilation for
the purposes of cooling.
9. When the batteries are to be assembled in series to
provide more than 100V, proper handling and safety
procedures must be observed to prevent accidental
electric shock. (see note #15 below).
10. If 2 or more battery groups are to be used, connected in
parallel, they must be connected to the load through
lengths of wires, cables or busbars that have the same
loop line resistance as each other. This makes sure that
each parallel bank of batteries presents the same
impedance to the load as any other of the parallel banks
thereby ensuring correct equalisation of the source to
allow for maximum energy transfer to the load.
11. Ripple current (the AC component on the DC charge cur-
rent). Ideally this should be zero, as it will reduce the
service life of a cell/battery, the larger the component
the greater the reduction it will cause. For example 0.1C
Amps R.M.S will reduce the optimum service life by a
minimum 3%.
Note 1) Ripple current can be source or load generated.
II) Ripple current can vary with load change and is often
its greatest at part load.
12. When cleaning the battery case, ALWAYS use a water
dampened cloth but NEVER use oils, organic solvents
such as petrol, paint thinners etc. DO NOT even use a
cloth that is impregnated or has been in contact with
any of these or similar substances.
13. Do not attempt to dismantle the battery. If accidental
skin/eye contact is made with the electrolyte, wash or
bathe the affected area/part straight away with liberal
amounts of clean fresh water and seek IMMEDIATE
medical attention.
14. DO NOT INCINERATE batteries as they are liable to
rupture if placed into a fire. Batteries, that have reached
the end of their service life, can be returned to us for
safe disposal.
15. Touching electrically conductive parts might result in an
electric shock. Be sure to wear rubber gloves before
inspection or maintenance work.
16. The use of mixed batteries with different capacities, that
may have been subjected to different uses, be of differ-
ent ages and are of different manufacturers is liable to
cause damage to the battery itself and/or the associated
equipment. If this is unavoidable please consult us
beforehand.
17. To obtain maximum life, batteries should never be
stored in a discharged state.
18. In order to obtain maximum working life, when the
batteries are used in an UPS system the following is
advised:
(a)
Where the D.C. input exceeds 60 volts, each bat-
tery should be insulated from the battery stand
by using suitable polypropylene or polyethylene
material.
(b) In high voltage systems the resistance between
battery and stand should always be greater than
1 Megohm. An appropriate alarm circuit could be
incorporated to monitor any current flow.
DESIGN/APPLICATION TIPS TO ENSURE MAXIMUM SERVICE
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