Alert Screens And Diagnostics; Equalization - Blue Sea Systems 7531 User Manual

Alert Screens and Diagnostics

If at any time during the chargers life the red Alert light goes on, then the charger is not providing optimal performance.
The below Alerts encompass all of the possibilities for the charger to under perform. Alerts will be indicated by the red
Alert light as well as a pop-up screen explaining the reason.
Thermal Regulation
The P12 Battery Charger is equipped with an intelligent thermal regulation device for safe charging. If at any point
during charging a thermometer image begins to blink in the upper right hand corner of the screen, then the charger
has entered Thermal Regulation. This is not a failure, but a reduced current output state. While in this state the
internal temperature is being regulated by controlling the maximum output current. While in Thermal Regulation, the
charger will reduce output current to keep the charger at a safe operating temperature. The output can be regulated
all the way down to zero but is not likely. The most common correction for this state is to increase the fan speed
to High. If the fan speed is already set to High check for blockage around the fan vent that can be removed. If the
condition persists, it is advisable to reposition the battery charger in a cooler, more ventilated location.
Fan
The P12 Battery Charger is equipped with a variable speed fan. The fan is used to dissipate warm air produced from
high output currents during charging. The aluminum case of the P12 Battery Charger provides a large amount of heat
dissipation but for optimal performance the fan must be performing properly. If at any point the fan fails to perform
at its designated setting the Fan Alert Screen will appear. If this alert screen appears shut off AC power to the
battery charger as well as all battery connections. Determine if there is a blockage in or around the fan vent and
correct. Turn on AC power and check to see if the Fan Alert Screen appears. If the Fan Alert Screen does not appear
and the fan seems to be operating correctly, then continue to use the battery charger normally. If the Fan Alert
Screen appears contact Blue Sea Systems for fan replacement instructions.
Battery Temperature Sensor
As discussed in the Temperature Parameters section (page 15), there is an external battery temperature sensor
supplied with the unit. If at any point the temperature sensor records a temperature beyond the defined temperature
limits, the battery charger will display the Battery Temperature Alert Screen. In this situation all battery charging will
stop until the proper battery temperature is restored. Normal operation will not commence unless two degrees within
the temperature parameters. For example, if the maximum temperature parameter is set to 50°C and the
temperature sensor reads 51°C then the Battery Temperature Alert Screen will display. In this situation the battery
charger will not charge until the battery temperature sensor reads a maximum of 48°C. If no temperature sensor is
in use then battery temperature is not monitored and this alert will not be displayed.
CAUTION
Alteration of battery temperature parameters without sufficient knowledge is dangerous and can cause personal or property harm. If the battery temperature sensor goes
outside a designated parameter, contact your battery manufacturer for further information on specific battery temperatures.
Internal Temperature Sensor
The P12 Battery Charger is equipped with two internal temperature sensors. These sensors are unrelated to the
supplied external battery temperature sensor. If the Internal Temperature Sensor Alert Screen appears, then one
or more of the internal temperature sensors is not recording correct temperature data. Once in this state all battery
charging will stop. This form of temperature alert can not be corrected by the user. Contact Blue Sea Systems for
further information regarding internal temperature sensor alerts.
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Specifications are subject to change. See bluesea.com/P12 for current information.
P12
7531 AND 7532 BATTE RY C HAR GER S
Fan Fault
Check Fan for Blockage
Battery Temperature
Out of Limits
Internal Temp Below -20° C
Charger Will Restart When
Internal Temp Above -18° C
Alert Screens and Diagnostics
AC Input Voltage Too Low
If the AC input voltage drops below 85V AC, the alert screen on the right will appear. While in this state the
charger will cease to charge any batteries. Shut off power at the AC source for two minutes, and then restart. If the
alert screen persists, attempt to use a different AC power source, or contact an electrician to
diagnose the problem.
AC Input Voltage Too High
If the input voltage rises above 265V AC the alert screen on the right will appear. In this state the charger will
cease to charge any batteries. Shut off power at the AC source for two minutes and then restart. If the alert screen
persists, attempt to use a different AC power source, or contact an electrician to diagnose the problem.
DC Output Voltage Too High
If at any point the charger detects a DC output voltage greater than 17.8V DC for five seconds, then the alert
screen on the right will appear. In this state the charger will cease to charge any batteries in order to prevent
damage. Shut off AC power for two minutes, and then restart. If the alert screen persists, shut off AC power and
contact Blue Sea Systems for further assistance.
DC Fuse
The DC output fuses have opened. The fuses are user serviceable. Please follow the procedure on Page 8 under the
Maintenance section for details on procedure and replacement fuse ratings.
WARNING
Before replacing fuses, check all wiring connections for proper polarity. A reverse polarity condition on the DC wiring
may be the cause of the fuse failure.
Equalization Overload
If at any point during equalization the total output current of the battery charger is greater than the defined
Maximum Equalization Current the Equalization Overload Alert Screen will appear. To correct, confirm batteries
are fully charged, and all loads are turned off prior to equalization. If mandatory 24-hour loads are present you may
adjust the Maximum Equalization Current accordingly. Once corrected, the equalization process must be restarted.
WARNING
Increasing the Maximum Equalization Current beyond your battery manufacturers recommendations is potentially
dangerous. Consult your battery manufacturer for proper equalization currents.
P12
(continued)
7531 AND 7532 BATTERY CHARGERS
AC Input Voltage too Low
Check for Proper AC Source
AC Input Voltage Too High
Check for Proper AC Source
DC Output Voltage Too High
Charger is off to prevent damage
Disconnect AC for 2 mins. then restart
Fuse Failure
Contact Blue Sea Systems
360.738.8230
EQ stopped-Max Current Limit
Make sure battery is charged
and all loads removed!
Specifications are subject to change. See bluesea.com/P12 for current information.
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