LEAB BW 801e User manual
Installation and Operating Manual
V2.1
Battery Watch
BW 801e
About this Manual
Read this manual carefully and keep it in a safe place.
This manual is intended for professionals in the automotive electrical field.
1. General Safety
Intended use:
Use the BW 801e battery watch to protect your battery against total
discharge. The device prevents the battery voltage from falling below a set
level. Use the device for batteries with a nominal voltage of 12 V or 24 V.
Observe the following safety instructions:
WARNING
Fire hazard
Incorrect installation or inadequate wiring can result in a
build-up of heat.
Only install the device as described in this manual.
Select a sufficient cable cross-section to connect the
device.
NOTICE
Incorrect use can result in defects
Material damage can occur if the device is used beyond the
specified operating ranges.
Before assembling and installing the device, make
sure that it is suitable for your use.
Incorrect assembly can result in defects
The ingress of water or overheating can result in material
damage.
Assemble the device in a dry and cool place.
2. Technical Specifications
Technical Specifications
Part no.
1305041043
Battery nominal voltage (DC)
12 V or 24 V
Continuous load
50 A
Overload (10 s)
70 A
Switch-off voltage (adjustable)
12 V: 9 V … 12 V
24 V: 18 V … 24 V
Operating temperature
-30 °C … +70 °C
Dimensions (LxWxH)
100 x 90 x 25 mm
Weight
0.11 kg
Internal consumption
6 mA
3. About the Battery Watch
The BW 801e battery watch is a two-stage safety system to avoid deep
discharge of your battery. Alarm functions warn you acoustically and visually
of imminent deep discharge. If power continues to be removed from the
battery, the battery watch disconnects consumers from the battery to
prevent deep discharge. The threshold values for the alarm and for switching
off the consumers are set via DIP switches.
Components and Connections
No
.
Description
Consumer connector
Operating indicator
DIP switch
Red LED connector (+)
LED connector (-)
Green LED connector (+)
Ground
Alarm output
External switch
Battery connector
Package Contents
1x
BW 801e battery watch
2x
Insulating cap (400N9V02)
1x
3-colour LED
Accessories
1401036701
3-colour LED in socket with cable (5 m)
1401036702
3-colour LED in socket with cable (1 m)
Setting the Threshold Values (DIP Switches)
DIP ON
Switch-off
voltage [V]
Alarm
threshold [V]
Switch-on
voltage [V]
1
2
3
4
12 V
24 V
12 V
24 V
12 V
24 V
0
0
0
-
9
18
9.5
19
10.5
21
1
0
0
-
9.5
19
10
20
11
22
0
1
0
-
10
20
10.5
21
11.5
23
1
1
0
-
10.5
21
11
22
12
24
0
0
1
-
11
22
11.5
23
12.5
25
1
0
1
-
11.5
23
12
24
13
26
0
1
1
-
12
24
12.5
25
13.5
27
1
1
1
-
-
-
-
-
-
-
-
-
-
0
Internal buzzer on
-
-
-
1
Internal buzzer off
4. Assembly and Installation
Observe the following notes when assembling and installing the device:
WARNING
Risk of injury from electric shock
Electric shock from short-circuit currents.
Disconnect the battery negative lead prior to
assembly.
NOTICE
Damage due to residual voltage
Damage to the vehicle electrics due to residual voltage in
the vehicle power circuit.
Do not place the positive lead on the vehicle
bodywork.
1 2
3 4
Example: DIP switch
with setting 0000
1. Disconnect the battery from the vehicle
power circuit.
Warning: Disconnect the negative lead first.
2. Set the desired switch-off voltage on the
DIP switches ().
3. Connect 'ground' () to the negative
terminal of the battery.
Notice: Only the switching current (1 A) is permissible. The consumer
load must not lead via the 'ground’ plug contact ().
4. Disconnect the positive lead from the battery to the consumers and
connect the battery watch at the screw terminals
() and ().
5. Connect the battery to the vehicle power circuit.
The BW 801e is ready for operation. When the battery voltage is
sufficient, the operating indicator () lights green.
Optional Activities:
Connect an external buzzer via the ‘alarm output’ ().
Notice: Contact to ground, max. 1 A.
To use the battery watch as the main switch for the connected
consumers, lay a wire with a switch between the negative pole of the
battery and the ‘external switch’ connector ().
To connect the supplied LED,
carry out the following steps:
1. Attach the anode for green (shortest
leg) with connector ().
2. Attach the cathode (longest leg)
with connector ().
3. Attach the anode for red
with connector ().
The 3-colour LED is connected.
5. Operation
The operating status of the device is shown by the operating indicator (),
the 3-colour LED, the alarm output () and the internal buzzer.
The following table shows the operating status:
Operating Status
Display
Status
LED: green
Battery voltage is above the alarm threshold
setting, device is active.
Alarm output: inactive
Internal buzzer: off
LED: green (flashing)
External switch () is closed, consumers are
switched off.
Alarm output: inactive
Internal buzzer: off
LED: orange
Safety level 1: Below alarm threshold. Battery
voltage will soon reach the switch-off voltage.
Switch the consumers off or charge the
battery.
Alarm output: active
Internal buzzer:
Beep (interval*)
LED: red (flashing)
Safety level 2: Below switch-off voltage.
Consumers have been disconnected from the
battery to avoid deep discharge.
To supply consumers again, charge the
battery to the switch-on voltage.
Alarm output: inactive
Internal buzzer:
Beep (1x)
LED:
no colour
Device is switched off or incorrectly installed.
*Internal buzzer interval (in seconds): 600 –300 –150 –75 –37 –18 –9.
After that: Beep every 9 seconds until reaching the switch-off voltage.
6. Decommissioning
To remove the BW 801e, perform the following steps:
1. Disconnect the battery from the vehicle power circuit.
Warning: Disconnect the negative lead first.
2. Remove the leads on the connectors (, , , and ) from the
vehicle.
3. Remove the device from the vehicle.
The device is now removed.
7. Disposal
Dispose of the device in accordance with the Waste of Electrical and
Electronic Equipment Regulations (WEEE).
The device must not be disposed of with household waste. Take
it to a recycling point or send it to your point of sale.
8. EU Declaration of Conformity
The product
BW 801e
complies with the requirements of the following guidelines:
2014/30/EU : EMC
2011/65/EU : RoHS
9. Warranty
LEAB grants a legal guarantee from the date of purchase if the installation of
the product has been carried out by a specialist and if it has been used in
accordance with the intended use.
If defects or malfunctions occur during normal use within this time, LEAB will,
at its discretion, repair or replace the device free of charge.
Requirements for the completion of work under warranty are:
Invoice or delivery note
Model name or type
Serial number
Detailed description of the fault and the installation
Note the serial number and the purchase date here.
Serial number:
Purchase date:
The serial number is printed on the product label.
LEAB Automotive GmbH
Thorshammer 6
D-24866 Busdorf
:
+49 (0)4621-97860-110
Fax
+49 (0)4621-97860-260
Web:
It is prohibited to copy, duplicate, translate or otherwise pass on the content of this
guide to third parties without the express written permission of LEAB Automotive
GmbH.
Green
Red
Cathode
Anode
Anode
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