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Operating principle
When the battery level indicator is switched on, the LED corresponding to the position currently held by the rotary dipswitch will turn on. Position 0 (zero) cor-
responds to the red LED (D), position 1 corresponds to the fi rst yellow LED (row of 7 LED's (D)), and so on. After that, all the LED's turn on for a few seconds (lamp
test) and then the ordinary operation process is started. The battery level indicator features two voltage thresholds: the Stopping Threshold and the Resetting
Threshold. The stopping threshold corresponds to the value of the voltage at the end of discharge and depends on the position of the rotary dipswitch (A)
located at the back side of the indicator.
The resetting threshold corresponds to the reset-point threshold of the device (this value varies along with the discharging current selected by the dipswitch (A)
and is close to the battery nominal value). When the voltage value corresponding to the stopping threshold is reached, the last yellow LED will fl ash for 15 se-
conds, then the red LED will turn on, and the blocking relay will open. To reset, switch off the battery level indicator, charge the batteries and then switch on the
battery level indicator again with charged batteries.
When the battery level indicator is switched on, the battery voltage is measured, and in any case:
1.
if the voltage is below the stopping threshold, the instantaneous stopping will occur;
2.
if the voltage is higher than the resetting threshold, all the LED's will turn on again and the battery level indicator will reset in order to start a new
working cycle;
3.
If the voltage ranges between the stopping threshold and the resetting threshold, the LED's will turn on rapidly according to the condition prior to the
switching off . If the previous condition was a stop, the last yellow LED will fl ash.
Stopping thresholds and connector
Connector pin confi guration (B)
1.
not used
2.
key +
3.
relay +
4.
relay
5.
battery
6.
hour-meter input +
7.
battery +
8.
battery +
The end of discharge voltage can be selected with the rotary dipswitch (A). On reaching this voltage, the internal relay will open.
Position
0
VPC
1.63
The end of discharge voltage can be selected with the rotary dipswitch (A). On reaching this voltage, the internal relay will open.
MANTA 34 RS
OPERATING MANUAL " uLBF52 "
1
2
1.68
1.73
3
4
1.76
1.82
59
5
6
1.84
1.86
7
1.89
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