High Precision Battery Monitor
Battery Monitor Basic
Owner’s manual
Thank you for purchasing a Whisper Power Battery
Monitor (WBM).
Please read this owner’s manual for information
about using the product correctly and safely.
Keep this owner’s manual close to the battery
monitor for future reference.
Whisper Power BV
Kelvinlaan 82, 9207 JB Drachten, The Netherlands
http://www.whisperpower.eu
1. WBM-Basic display and control overview
1. Charge battery indicator
2.
3.
4.
5.
6.
7.
8. Select State-of-charge readout, or n
9. Select current (A) or Amphour (Ah) readout, or enter / leave Setup menu
10. Select voltage readout (Main or Auxiliary), or previous value (<)
Alarm activated indicator
Numeric value indicator field
Readout units
Main battery or Auxiliary battery indicator
State-of-charge bar
Synchronize indicator
ext value (>)
2. Synchronisation
In order to keep your battery monitor delivering accurate status information about your
battery, it is important to regularly synchronize your battery monitor with your battery. As
explained in the quick start guide, a synchronisation step is also needed before you can
actually use your battery monitor. During operation, the battery monitor automatically
indicates when a synchronisation is required, by displaying the message SYNCHRONIZE.
Performing synchronisations regularly is also important to keep your battery healthy and to
increase it’s lifetime. You will notice that if you are often performing full charge cycles
yourselves, the battery monitor will most likely not display the SYNCHRONIZE message,
since the battery is already kept in good sync with the battery monitor.
Besides automatic synchronisations based on meeting the Auto-Sync Functions, you can
also manually synchronize the battery monitor with your battery when you are sure your
battery is fully charged. This can be accomplished by pressing both < and > keys
simultaneously for three seconds. After these three seconds, the flashing FULL message
appears on the the display just like when it is automatically synchronized.
A synchronisation step means nothing more than performing a
charge cycle on
your battery. A charge cycle will be considered complete when all discharged energy is
restored in the battery and both Auto-sync parameters F02 and F03 are met during at
least 4 minutes. This typically means : when the battery charger switches to float mode. By
meeting these conditions, the battery is considered full, which will be indicated by a
flashing FULL message on the display. Besides this, the State-of-charge readout will be
set to 100% and the Amphour readout reset to 0Ah. The FULL message will disappear
when a key is pressed, or automatically, when the battery starts discharging again.
complete
Before proceeding with this owner’s manual, please make
sure you have carefully read the enclosed installation guide as
well!
3. Setup menu
Using the Setup menu, your battery monitor can be adjusted to fit into your system. A
number of parameters, called Functions, can be set according to your needs. This menu
can be accessed by the following sequence :
When the Setup menu is entered, you can use the < and > keys to browse through the
different Functions. By pressing the SETUP key, the selected Function value can be
viewed. The < and > keys can now be used to change this value. Pressing the SETUP key
again, will then step back to the Setup menu. From any menu position, the Normal
Operating Mode can be accessed again by pressing the SETUP key for 3 seconds. This
will also save any Function value changes to internal memory. When no keys are pressed
for 90 seconds while operating in the Setup menu, the battery monitor will automatically
return to the Normal Operating Mode again without saving any Function value changes.
The following Functions are available :
The factory settings are based on a 12V battery system with a capacity of 200Ah. For 12V
systems, generally only Function F01 has to be checked for correct operation of your
battery monitor. When your battery capacity is other than 200Ah, Function F01 has to be
changed to a value that is equal to your battery capacity. All other Functions can be left
unchanged if you are uncertain about adjusting these values yourselves.
When your battery system is 24V, besides checking battery capacity Function F01 for the
correct value, you should also change the values of F02 and F05. Default 24V system
values for F02 and F05 are respectively 26.4V and 21.0V.
F02
Charger's float voltage (
. This value must be equal to your
battery charger’s float voltage. which is the last stage of the charging process. In
this stage the battery is considered full.
Auto-sync parameter)
Default : 13.2V
Range : 8.0V - 33.0V
Step size : 0.1V
F03
Charger's float current (Auto-sync parameter). When the charge current is below
this percentage of the battery capacity (see Function F01), the battery will be
considered as fully charged. Make sure this Function value is always greater than
the minimum current at which the charger maintains the battery or stops charging.
Default : 2.0%
Range : 0.5 - 10.0%
Step size : 0.1%
F04
Low battery alarm On (% SOC). When the
percentage has fallen
below this value, the alarm relay will be activated,
State-of-charge
the Charge battery indicator
starts flashing and the State-of-charge bar is empty.
Default : 50%
Range : 0 - 99%
Step size : 1%
F05
Low battery alarm On (Volts). When the
has fallen below this
value, the alarm relay will be activated.
battery voltage
Default : 10.5V
Range : 8.0 - 33.0V
Step size : 0.1V
F06
Low battery alarm Off (% SOC). When the State-of-charge percentage has risen
above this value and the alarm relay was activated, the alarm relay will deactivate
again. When “FULL” is selected, the alarm relay is deactivated when the Auto-
sync parameters are met.
Default : 80%
Range : 1 - 100% / FULL
Step size : 1%
EN
2
3
4
5
6
7
8
F01
Battery capacity. Your Main battery’s capacity in Amphours (Ah).
Default : 200Ah
Range : 20 - 999Ah
Step size : 1Ah
F07
Peukert's exponent. The Peukert’s exponent represents the effect of reducing
battery capacity at higher discharge rates. When the Peukert value of your battery
is unknown, it is recommended to keep this value at 1.25. A value of 1.00 disables
the Peukert compensation.
Default : 1.25
Range : 1.00 - 1.50
Step size : 0.01
F08
Shunt Amp Rating. This Function represents the Amp rating of your shunt at
50mV. Included with your battery monitor is a 500Amp/50mV shunt, meaning that
at 500A flowing through the shunt, a voltage of 50mV is generated across the
small ‘Kelvin’ screw terminals of the shunt. This voltage will be used by the battery
monitor to measure the amount of current.
Default : 500A
Range : 10 - 900A
Step size : variable
F09
Backlight mode. Represents the duration of backlight activation in seconds after
key-press. The backlight can also be set to be always “ON” or always “OFF”.
Function setting “AU”, activates the backlight automatically when charge /
discharge current exceeds 1Amp or when a key is pressed.
Default : 30sec
Range : OFF / 5
…
300 / ON / AU
Step size : variable
F10
Alarm contact polarity. Enables selection between a normally open (NO) or
normally closed (NC) contact.
Default : NO
Range : NO / NC
F11
Reserved
Default : x
Range : x
F12
Firmware version. Displays the firmware version of the battery monitor (read only).
Default : x.xx
r.b
Reset Battery status. Use this reset item to reset your current battery status, for
example after you have installed a fresh battery of the same specifications as the
previous one.
r.F
Reset Functions. This reset item can be used to reset all Function values to
factory default values.
The last two Functions are socalled Reset Functions. By pressing the SETUP key the
selected Reset Function can be viewed. The default value for all Reset Functions is
“
OFF
”
.
To actually reset the selected Function, use the < and > keys to change the value from
“
OFF
”
to
“
ON
”
. Pressing the SETUP key again, will step back to the Setup menu. All reset
items set to
“
ON
”
will only be reset once the Normal Operating Mode is accessed again by
pressing the SETUP key for 3 seconds. The following Reset Functions are available :
Whisper Power (WP) warrants this product to be free from defects in workmanship or
materials for 24 months from the date of purchase. During this period WP will repair the
defective product free of charge. WP is not responsible for any costs of the transport of
this product.
This warranty is void if the product has suffered any physical damage or alteration, either
internally or externally, and does not cover damage arising from improper use or from use
in an unsuitable environment.
This warranty will not apply where the product has been misused, neglected, improperly
installed or repaired by anyone other than WP. WP is not responsible for any loss, damage
or costs arising from improper use, use in an unsuitable environment or improper
installing, setup and malfunctioning of the product.
Since WP cannot control the use and installation (according to local regulations) of their
products, the customer is always responsible for the actual use of these products. WP
products are not designed for use as cricital components in life support devices or
systems, that can potentially harm humans and/or the environment. The customer is
always responsible when implementing WP products in these kind of applications. WP
does not accept any responsibility for any violation of patents or other rights of third
parties, resulting from the use of the WP product. WP keeps the right to change product
specifications without previous notice.
Examples of improper use are :
- too high input voltage applied
- wrong shunt connection
- applying battery voltage to shunt input
- mechanically stressed enclosure or internals due to harsh handling and/or incorrect
packaging
- contact with any liquids or oxidation caused by condensation
1)
1)
4. Warranty conditions
6. Declaration of conformity
MANUFACTURER
:
Whisper Power BV
ADDRESS
:
Kelvinlaan 82
9207 JB Drachten
The Netherlands
Declares that the following products :
PRODUCT TYPE
:
BATTERY MONITOR
MODEL
:
WBM-Basic
Conforms to the requirements of the following Directives of the European Union :
EMC Directive 2004/108/EC
The above product is in conformity with the following harmonized standards :
EN61000-6-3: 2001
EMC - Generic Emissions Standard
EN61000-6-2: 2005
EMC - Generic Immunity Standard
RoHS Directive 2002/95/EC
5. Technical specifications
Parameter
WBM-Basic
Supply voltage range
Supply current
:
@Vin=24VDC
1)
Input voltage range (auxiliary battery)
Input voltage range (main battery)
Input current range
2)
Battery capacity range
Operating temperature range
Readout resolution :
voltage (0..35V)
current (0..100A)
current (100..999A)
amphours (0..99Ah)
amphours (100..999Ah)
@Vin=12VDC
9..35VDC
7mA
9mA
2..35VDC
0..35VDC
-999..+999A
20..999Ah
-20..+50°C
± 0.1V
± 0.1A
± 1A
± 0.1Ah
± 1Ah
1)
2)
Measured with backlight and alarm relay turned off.
Depends on selected shunt. With standard delivered 500A/50mV shunt (350A
continuous), the range is limited to -600..+600A.
Note: the given specifications are subject to change without notice.
- WBM professional connection kits
lengths : 6m, 12m
- WBM quick connection kits
lengths : 3m
Accessories
weight
Protection class
145 grams
IP20 (frontpanel only IP 65)
height
17mm (base) / 35mm (M8 screws)
Weight
Shunt dimensions :
footprint
95grams
45 x 87mm
total depth
79mm
Dimensions :
frontpanel
body diameter
ø 64mm
ø 52mm
Current measurement accuracy
± 0.4%
state-of-charge (0..100%)
Voltage measurement accuracy
± 0.1%
± 0.3%
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[3 sec]
WBM-Basic Manual Rev1en / Printed in The Netherlands
