SAMLEX AMERICA, INC.
| 1
BATTERY MONITOR BW-01 |
OWNER'S MANUAL
Description and Features:
This unit is an Intelligent, microprocessor based,
panel mounted battery voltage monitor for display of the State of Charge of 12V / 24V
battery with the help of buzzer and different patterns of Red / Yellow / Green LEDs: steady
/ blinking / slow or fast “Walking LEDs”. 12V / 24V battery is detected automatically when
voltage of 7 to 32V is seen on connection of the battery. Following parameters / conditions
are displayed:
•
Terminal voltage
•
Charging in progress
•
Alarm at programmed low voltage threshold.
•
Alarm at programmed high voltage threshold
•
3- Day Timer / Switch OFF the unit for low voltage protection
Threshold (14.8V (Preset) / 15.3V / 16V for 12V battery and 29.6V (Preset) / 30.6V /
32.0V for 24V battery). The loop is: (Red
»
Yellow
»
Green
»
All OFF)… repeats this
sequential loop.
Layout and Dimensions
Fig 3.
0.25”/6.3 mm Female Quick
Connect Receptacle Terminal Lug
65
56
Wire AWG #22 to 26
0.5A
Fuse
3
65
56
2
4
5
1
B
36
PCB
36
14.9
A
14.9
High Voltage Alarm during Charging:
Following voltage thresholds can be
programmed to warn about over voltage condition during charging (See programming
Fig 1. BW-01 Front View
Fig 2. BW-01 Back View & Battery Connec-
procedure given separately).
Fig 1.:
1
– Red LED
2
– Yellow LED
3
– Green LED
4
– Buzzer (at the back)
5
– Programming Button
3.2
tion (Note: Same dimensions as front view)
Fig 2.:
A
– 1/4" (6.3mm) Quick Connect Tab Terminal
for connection to Positive (+) of the battery
B
– 1/4" (6.3mm) Quick Connect Tab Terminal
for connection to Negative (-) of the battery
•
14.8V (Preset) / 15.3V / 16V for 12V battery
•
29.6V (Preset) / 30.6V / 32.0V for 24V battery
This facility can be used to indicate onset of “Equalization Stage” when charging Flooded
/ Wet Cell Batteries. During “Equalization Stage”, the battery is intentionally overcharged
to 15.3 to 16V (12V battery) / 30.6 to 32V (for 24V battery) for limited time of 1 to 3
Hrs. During this time, it is necessary to monitor the battery for overheating / electrolyte
level / measurement of individual cell voltages and for turning OFF Equalization at the
appropriate time.
Installation:
Please refer to Figs 1 and 2 above. The unit consists of a 65 x 65 mm
front plate with 4 x 3.2 mm holes for flush mounting on a wall / panel with 4 screws (#4,
Tapping, Flat Head). The Printed Circuit Board (PCB) and Battery Input Connectors (0.25”/
6.3 mm Quick Connect Tabs) are located at the back of the plate and project out to a
depth of 25.5 mm. For flush mounting on the wall / panel, a pocket / slot measuring 30
mm x 30 mm x 40 to 50 mm depth is required to be made to accommodate the projection
at the back.
Use AWG # 22 to 26 wires (e.g. telephone wires) to connect to the battery (See
Fig. 2). Use a 0.5A fuse in series with the Positive wire. The fuse should be as close as
possible to the battery Positive terminal (preferably within 7”).
Refer to Fig 2. Battery Positive (+) and Negative (-) connections to the unit are made
through Battery Input Connectors “A” and “B” (1/4”/6.3 mm Male Quick Connect Tabs).
For this connection, use 0.25”/6.3 mm Female Quick Connect Receptacle Terminal Lugs on
the wire ends (See Fig 3).
12V / 24V battery is detected automatically when voltage of 7 to 32V is seen on
connection of the battery. At startup, Red LED is activated as a sign of power up. After
some time, the unit is initialized and 12V / 24V battery is recognized. The State of Charge
is displayed thereafter.
LED and Buzzer Indications for Voltage Levels:
*NOTE
: Term “Walking LEDs” has been used to indicate cyclical, sequential lighting
pattern of Red, Yellow and Green LEDs. This pattern indicates that charging is taking
place. Following 2 patterns are used:
•
“Walking LED’s - Fast” + Beep:
Indicates charging at voltage that is higher than the
programmed value of High Voltage Threshold (14.8V (Preset) / 15.3V / 16V for 12V
battery and 29.6V (Preset) / 30.6V / 32.0V for 24V battery). The loop is: {Red
»
Yellow
»
(Green + Beep)
»
All OFF}… repeats this sequential loop.
•
“Walking LED’s – Slow”:
Indicates charging at voltage higher than 13.3V (12V
battery) / 26.6V (24V battery) but lower than the programmed value of High Voltage
The display pattern is “Walking LEDs – Fast” + Beep. In this pattern, the display / buzzer
loop is: {Red » Yellow » (Green + Beep) » All OFF}......Repeats this sequential loop.
NOTE:
The unit will not reset even after the battery voltage drops below the programmed
Over Voltage Threshold. This is helpful to know that an over voltage condition existed. The
alarm can be reset manually as follows:
•
Press and hold Programming Button » Beep will be heard » Release the Button
Low Voltage Alarm:
Following voltage thresholds can be programmed to warn
about low voltage condition (See programming procedure given separately).
•
< 10.5 (Preset) or < programmed values of 10.6V / 10.7V / 10.8V / 10.9V / 11.0V
/11.1V / 11.2V
•
< 21V (Preset) or < programmed values of 21.2V / 21.5V / 21.6V / 21.8V / 22.0V /
22.2V / 22.4V
When the programmed Low Voltage Threshold is reached, the following LED / Buzzer
pattern will be observed:
»
(Red + Green)
»
( Beep)…….Repeats 10 times
»
(Red + Green)
»
(Orange)….. Repeats 10 times
»
All LEDs OFF. Unit enters Sleep Mode. There is a beep every minute so that it is clear that
the unit is not in a “3 Day Off Mode.”
NOTE:
The unit will reset only when the battery voltage rises to > 13.3V (for 12 V battery)
/ 26.6 V (for 24V battery) i.e. when charging takes place.
3-Day Timer:
A 3-Day Timer has been provided to automatically switch OFF the unit
after 3 days of switching ON of the Timer or if the battery voltage drops below 10.4V (for
12V battery) or 20.8V (for 24V battery). The Timer will be automatically switched OFF after
the battery voltage rises above 13,3V (for 12V battery) or 26.6V (for 24V battery).
ON / OFF Modes can be programmed as shown under heading “Programming
Alarm Thresholds / 3-Day Timer.”
Status of LEDs
and Buzzer
Battery Voltage
indicated for 12V
Battery
Battery Voltage
indicated for
24V Battery
*Walking LED’s - Fast + Beep (Indicates
charging in progress and the voltage is
higher than the programmed threshold
of Over Voltage Alarm)
> 14.8 (Preset) /
15.3V / 16.0V
> 29.6V (Preset) /
30.6V / 32.0V
*Walking LED’s - Slow (Indicates
charging in progress under normal
conditions)
> 13.3 But <(14.8V
(Preset) / 15.3V /
16.0V)
> 26.6V But < (29.6V
(Preset) / 30.6V /
32.0V)
Green
> 12.4
> 25.0V
Green+Yellow
> 11.6
> 23.2V
Yellow
> 11.2
> 22.2V
Red
> 10.9
> 21.8V
Red
> 10.5
>21.4V
(Green + Red) - Blinking
-
> 21V
Following pattern indicates voltage is
below the programmed threshold for
Low Voltage Alarm:
(Red + Green)
»
(Yellow + Beep)…
repeats 10 times
»
(Red + Green)
»
(Yellow)… repeats
10 times
»
All LEDs OFF. Unit enters
Sleep Mode. There is a beep every min.
< 10.5 (Preset) or
< programmed
values of 10.6V
/ 10.7V / 10.8V
/ 10.9V / 11.0V
/11.1V / 11.2V
< 21V (Preset) or <
programmed values
of 21.2V / 21.5V
/ 21.6V / 21.8V
/ 22.0V / 22.2V /
22.4V
