Balmar Smartgauge Руководство по установке и эксплуатации - Страница 18
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PAGE 18
SECTION 9.0 – ADDENDUM
much more accurate. For this reason, it is possible that, during the charge cycle, the charge status displayed may
not be totally accurate. It will be within 10% of the actual battery charge status.
(Note that once discharging commences, Smartgauge™ will automatically re-synchronize itself within the first
few minutes of discharge or within the first 10 minutes of resting if no load is present. Smartgauge™ uses this
information to modify its battery models and algorithm to increase the accuracy of future calculations)
Smartgauge™ will provide a dependable indication (certainly better than an amp hours counter – and certainly
better than a volt meter but it could be that Smartgauge™ shows the charge status to have reached (as a worst
case example) 100% when in actual fact the batteries have only reached 90%.
Not charging to 100% charge state is one of the most common reasons for premature battery failure. Not charg-
ing to 100% (or occasionally well in excess of 100%) causes sulfation of the plates which is the main cause of
early battery failure. Therefore, as when using any form of charge status meter, and if using an intelligent char-
ger, do not shut the charger down when Smartgauge™ indicates 100% SoC. Instead, rely upon the charger,
which can reach a much more accurate measurement of when the batteries are actually fully charged.
Also consider the possible results of using the Primary Alarm set to operate on charge status. If this is being
used to operate an auto start generator and charger, and the generator is regularly shut down before reaching
100% charge status this, again, will cause the plates to sulfate.
This is the reason for the option to set the low status alarm to operate for a fixed period of time instead of
until reaching a certain charge status. In some installations it may be better to use this option to ensure that the
generator is run for a sufficient period of time. Either way, once discharging commences, Smartgauge™ will re-
synchronize itself (whatever the final true charge status that was reached – i.e. it will not simply assume 100%
charge status, as many amp-hours counters do) and then give a true indication of the charge status throughout
the discharge cycle.
Conversely, it may be the case that the Smartgauge only reaches 90% charge status during the charge cycle
when in actual fact the batteries have reached 100% charge status and the intelligent charger has gone into
float charge. If this happens, again Smartgauge™ will re-synchronize itself during the first stage of the discharge
cycle.
Whatever happens, whenever Smartgauge™ "gets it wrong", Smartgauge™ realizes, corrects itself, and uses
the information to modify its battery models and algorithm. An amp-hours counter simply "gets it wrong", and
does nothing about it, and runs further and further adrift from the true State of Charge.
Smartgauge™ will NOT run out of synchronization with the batteries.
SECTION 10.0 - SPECIFICATIONS