40
Chapter 3
Changing and Re-charging the Battery Packs
If using a DustTra
k™ monitor, change the battery packs within the
Environmental Enclosure at least every 34 hours of use. However, if
using a DustTra
k™ monitor with External Pump, change the battery
packs within the Environmental Enclosure every 23 hours of use.
TSI
®
recommends replacing the battery pack(s) during the daily
maintenance check described in the
A voltage cutoff switch will cut the power to the DustTra
k™ II/DRX
aerosol monitor when the battery voltage reaches 10.5 V. This
ensures that the battery does not become too deeply discharged to
recover, and also prevents the DustTrak
™
monitor from operating
below its rated voltage input. Preventing this condition will prolong the
life of the battery.
If storage is required, battery packs should be fully charged prior to
storage to prolong the life of the battery and be left off of charge for
no longer than 3 months maximum. However, it is
NOT
recommended to store battery packs off of charge. Battery packs
stored off charge may result in shorter than average life.
Battery packs will age over time per usage and care. The battery
packs will last 180 to 200 cycles on average. One cycle being defined
as one battery pack discharge and one recharge process. With
optimal use and care, the life of a battery pack may possibly increase
beyond 200 cycles. For optimal battery health, keep battery packs on
charge in a cool, dry, and well-ventilated area while
NOT
in use, and
recharge battery packs immediately after use.
If battery packs are stored off of charge for durations longer than 30
days then longer charge times and shorter run-times may result due
to degraded battery health. Battery pack health will diminish at a
much more rapid pace if
NOT
recharged immediately (within one hour
maximum) after use.
It is important to remove a battery pack from service if signs of
diminished run-time or longer charge time are observed. These are
signs of battery pack aging and poor general battery health.
To
identify unhealthy battery packs, it is important to review and
adhere to the maintenance recommendations listed within
A battery pack in good health will take near 8 to 9 hours to
fully charge. A battery pack that provides 30% less product run-time
than expected is ready to be removed from service. If a given battery
pack provides a run-time of 24 hours or less for the DustTra
k™ monitor
or a run-time of 17 hours or less for the DustTra
k™ monitor with
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