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OPERATION
8 Copyright © 2013 Mastervolt / January 2013 / GMDSS Mass Charger Alarm Interface Copyright / EN
F3: Scroll text
When set to ON, the entire text of the function is
displayed at the Install menu. When set to OFF, only the
function number is displayed.
Example for the Back light function.
If F3: Scroll text set to OFF, “F7” will be displayed. If this
function is set to ON “F7: Back light” will be displayed.
Factory setting: OFF
Adjustable range: ON/OFF
F4: Buzzer active
Press the Mute button shortly to toggle the operation of the
Audible alarm.
Factory setting: ON
Adjustable range: ON/OFF
F5: Prelow Alarm
To enable the Pre-low alarm function, this setting must be
switched to ON. See F13: Prelow Alarm 0…10% for
details
Factory setting: ON
Adjustable range: ON/OFF
F6: Software Version
This function shows the installed software version of the
GMDSS Interface; this value cannot be changed.
F7: Back light
If Backlight is set to Auto, the backlight of the display will
switch off automatically if the buttons are not touched for
10 seconds. As soon as one of the buttons is touched, the
display’s backlight and the LED-bar will be lit again for an
easy reading of the display.
Press the Mute button shortly to toggle this function.
Factory setting: Auto
Adjustable range: ON/OFF/Auto
F8: Low Battery Alarm ON
If the battery voltage drops below this value, the alarm
function will be activated after the “Alarm Delay” time has
elapsed; see F12.
Factory setting: 10.0V/20.0V depending on the nominal
battery voltage
Adjustable range:8.0…18.0V/18.0…36.0V
F9: Low Battery Alarm OFF
When the battery voltage rises above this level after a Low
Battery Alarm, the alarm function will be deactivated again.
Factory setting: 11.0V/22.0V depending on the nominal
battery voltage
Adjustable range:8.0…18.0V/18.0…36.0V
F10: High Battery Alarm ON
When the battery voltage rises above this level, the alarm
function will be activated without delay.
Factory setting: 16.0V/32.0V depending on the nominal
battery voltage
Adjustable range:8.0…18.0V/18.0…36.0V
F11: High Battery Alarm OFF
When the battery voltage drops below this level after a
High Battery Alarm, the alarm function will be deactivated
again.
Factory setting: 15.5V/31.0V depending on the nominal
battery voltage
Adjustable range:8.0…18.0V/18.0…36.0V
F12: Alarm delay Low Battery
The “alarm delay time” can be set to delay the alarm
function when the DC-voltage drops below the Low Battery
Alarm On set point (F8). This delay is to prevent a false
alarm as a result of a temporary voltage drop, because of
switching on a heavy load.
Factory setting: 30 seconds
Adjustable range: 3…60 seconds
F13: Prelow Alarm 0…10%
The “Pre-low alarm level” marks the voltage below which
the audible alarm is activated. This function can serve as
a pre-warning before the battery voltage drops below the
Low Battery Alarm ON level (Function F8) which will
result in a DC-status alarm. Note that this threshold
value is always above the Low Battery Alarm ON level
(F8).
Factory setting: 5% above the Low Battery Alarm On level
Adjustable range:0…10%
F14: Charger current control
The Maximum charge current is set by default at the
maximum charge current of the Mass series battery
charger. Here you can adjust the maximum charge
current
Factory setting: 100% of the maximum charge current.
Adjustable range: 20…100%
F15: Charger in force float
By default, the Mass series battery charger will charge
the battery following a three stage charge program. For
special applications, the battery charger allows you to
change the three stage charge program to a single stage
charging program by activating the function "Charger in
force float” Refer to the User’s manual of the battery
charger for details.
Factory setting: OFF
Adjustable range: ON/OFF
8


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