INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD
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Charger AH Capacity
is the Amp-Hour Capacity that the charger has been set for. This is generally only set
once, but it can be adjusted for different Amp-Hour batteries with-in the charger’s range.
Battery ID #
is the specific ID set for each battery. If a Battery ID Module is installed the battery ID will be
automatically set. If no module is installed, the charger will request a manually entered ID before a charge is
started. This allows for easy identification of the battery being charged.
Start Time Stamp
is simply the date and time that the charge was started. This is based on a real-time clock
running off of a coil-cell battery on the charger’s main circuit board.
Dead Battery Voltage
is the open circuit voltage from the battery just moments before the charger has
started. At this point, the battery’s state of charge has not been determined yet. This shows just how
discharged the battery was prior to starting the charge.
Max DCV During re-charge
displays the highest DC Voltage achieved during re-charge. This allows us to
see if the charger had delivered enough voltage to the battery to raise the specific gravity.
AH Returned
shows how many Amp Hours the charger actually delivered to the battery during the charge
cycle. There are no efficiency or Puekert factors involved. This is simply the Amp-Hours output.
Re-charge Time
is the total elapsed time spent on charge. This does not including the cooling time. If the
charger experiences an AC Failure this timer “pauses.” Once AC power is restored the timer will resume, and
the total time the battery was recharging is saved.
Example: A battery is charging for two hours, the AC power
fails and is not restored for an hour. Upon restoration of AC power the battery charges for an additional six
hours. The recharge time is not the nine hour difference between Start Time and Charge Terminate Time, it is
only the eight hours that the battery was actually under charge.
Charge Terminate Time
, similar to the start time stamp, is simply the date and time that the battery was
removed from the charger.
Cool Time
is time elapsed from the end of the charge until the battery is disconnected (or battery breaker is
closed). Using this data allows the customer to determine if the end-user is letting the battery cool-down
before putting the battery back to use. Cool time may not represent the actual time the battery was allowed to
cool down. If the battery is disconnected from the charger and given additional time to cool, the charger is not
able to monitor this additional time. La Marche recommends leaving the battery connected until the moment of
battery exchange, to allow for proper measurement of cool time.
Charge Type
shows whether the charger was set to a "Standard" charge cycle or an "Equalize" charge cycle.
Equalize can only be activated manually via the front panel membrane.
Connected Battery State
indicates the status of the battery that was connected to the battery. If the
battery was determined to be fully charge after 15 minutes, the log shows FULLY CHARGED. If the battery
went through a normal recharge requiring at least 3-hours of finish-rate charging, the log shows NORMAL.
Fault Indications
are any internal or external event that may have interrupted the recharge. If an AC
FAILURE occurs during the charge cycle, once power is restored the charger will pick-up where it left off and
finish charging the battery. The log will show AC FAILURE. If di/dt fault occurs during the charge cycle, DIDT
FAULT will be logged as the fault indication. If any of the override timers occur they will be logged as well.
Termination Type
shows what method was used to terminate the charge. The three types of termination are:
STOP SWITCH (manually pressing the stop pushbutton before completing the charge or after but with fault
indication present), TIMER (letting the charger complete the cycle on its own with timer) and DVDT (letting the
charger complete the cycle on its own with dv/dt termination).
