tbs electronics Expert Modular User manual

High Precision Modular Battery Monitor
Expert Modular
Owner’s manual
Gebruiksaanwijzing
Bedienerhandbuch
Mode d’emploi
Manual del propietario
TBS ELECTRONICS BV
De Marowijne 3, 1689AR, Zwaag, The Netherlands
http://www.tbs-electronics.com

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Notice of Copyright
Expert Modular owner’s manual © 2017-2019 TBS Electronics BV. All rights reserved. No part of this
document may be reproduced in any form or disclosed to third parties without the express written
permission of TBS Electronics BV, De Marowijne 3, 1689AR, Zwaag, The Netherlands. TBS Electronics
BV reserves the right to revise this document and to periodically make changes to the content hereof
without obligation or organization of such revisions or changes, unless required to do so by prior
arrangement.
Exclusions for documentation and product usage
UNLESS SPECIFICALLY AGREED TO IN WRITING, TBS ELECTRONICS BV (“TBS”) :
1. MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY
TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER
DOCUMENTATION
2. ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES, COSTS OR EXPENSES,
WHETHER SPECIAL, DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT
ARISE OUT OF THE USE OF SUCH INFORMATION. THE USE OF ANY SUCH INFORMATION
WILL BE ENTIRELY AT THE USER’S RISK
3. REMINDS YOU THAT IF THIS MANUAL IS IN ANY LANGUAGE OTHER THAN ENGLISH OR
DUTCH, ALTHOUGH STEPS HAVE BEEN TAKEN TO MAINTAIN THE ACCURACY OF THE
TRANSLATION, THE ACCURACY CANNOT BE GUARANTEED.
4. MAKES NO WARRANTY, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THESE TBS PRODUCTS AND MAKES SUCH TBS PRODUCTS
AVAILABLE SOLELY ON AN “AS IS” BASIS.
5. SHALL IN NO EVENT BE LIABLE TO ANYONE FOR SPECIAL, COLLATERAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES IN CONNECTION WITH OR ARISING OUT OF PURCHASE OR
USE OF THESE TBS PRODUCTS. THE SOLE AND EXCLUSIVE LIABILITY TO TBS, REGARDLESS
OF THE FORM OF ACTION, SHALL NOT EXCEED THE PURCHASE PRICE OF THE TBS
PRODUCTS DESCRIBED HERE IN.
Document name, date and part number
“E-Mod TBS Manual Web Rev2endfs”, March 2019, 201848

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English
Page 5
Nederlands
Pagina 32
Deutsch
Seite 59
Francais
Page 88
Español
Página 117

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Owner’s manual

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TABLE OF CONTENTS
1. INTRODUCTION....................................................................................................................................7
1.1 General......................................................................................................................................7
1.2 Box contents..............................................................................................................................7
1.3 Why a battery should be monitored.........................................................................................7
1.4 Expert Modular highlights.........................................................................................................8
1.5 CDU display and control overview ............................................................................................8
1.6 Active shunt status indicator.....................................................................................................9
2. QUICKSTART.......................................................................................................................................10
2.1 General....................................................................................................................................10
2.2 Setup wizard............................................................................................................................10
3. NORMAL OPERATING MODE .............................................................................................................12
3.1 Overview of parameter readouts............................................................................................12
3.2 Display messages.....................................................................................................................14
3.3 Synchronization.......................................................................................................................14
4. STATUS MENU....................................................................................................................................15
5. HISTORY MENU..................................................................................................................................16
6. FUNCTION SETUP MENU....................................................................................................................17
6.1 Battery bank 1 (Main) properties............................................................................................17
6.2 Battery bank 2 properties .......................................................................................................19
6.3 Battery bank 3 properties .......................................................................................................20
6.4 System properties ...................................................................................................................20
6.5 Alarm properties .....................................................................................................................20
6.6 Display properties ...................................................................................................................23
6.7 Global properties.....................................................................................................................24
6.8 Advanced properties...............................................................................................................24
7. RESET MENU ......................................................................................................................................26
8. LOCK MENU........................................................................................................................................26
8.1 Locking the Expert Modular....................................................................................................27
8.2 Unlocking the Expert Modular ................................................................................................27
9. TROUBLESHOOTING GUIDELINE ........................................................................................................27
10. TECHNICAL SPECIFICATIONS............................................................................................................29
11. WARRANTY CONDITIONS.................................................................................................................30
12. DECLARATION OF CONFORMITY......................................................................................................31
Appendix 1: Measuring the midpoint voltage of a 24V or 48V battery bank........................................32

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1. INTRODUCTION
1.1 General
Thank you for purchasing a TBS Electronics (TBS) battery monitor. Please read this owner’s manual
and the supplied installation guide for information about using the product correctly and safely.
Keep this owner’s manual and all other included documentation close to the product for future
reference.
For the most recent manual revision and added content, please check the Downloads section on our
website at http://www.tbs-electronics.com/downloads
The purpose of this owner’s manual and the installation guide is to provide explanations and
procedures for installing, configuring and operating the battery monitor. The installation instructions
are intended for installers that should have knowledge and experience in installing electrical
equipment, knowledge of the applicable installation codes, and awareness of the hazards involved in
performing electrical work and how to reduce those hazards.
1.2 Box contents
The box should contain the following items:
•Active shunt module
•Display and Control Unit (CDU)
•Fused supply cable
•Shunt to CDU cable
•Bag with rubber port covers
•This owner’s manual
•Installation guide
Please contact your supplier when any of these items show visual damage or when some items are
missing.
1.3 Why a battery should be monitored
Operating your battery bank without good metering is like running your car without any gauges,
although possible to do, it's always better to know how much fuel is left in the tank.
Defining the amount of energy available in a battery is a complex task, since battery age, discharge
current and temperature all influence the actual battery capacity. The Expert Modular is equipped
with high performance measuring circuits and complex software algorithms, to exactly determine
the remaining battery capacity.
Besides offering an accurate state of charge indication, the Expert Modular will also help users how
to get the best service life out of the battery bank. The service life of batteries will be negatively
affected by excessive deep discharging, under- or overcharging, excessive charge- or discharge
currents and/or high temperatures. The user can detect such abuse easily through the clear display

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of the Expert Modular. Or alarms can be triggered when certain limits are exceeded, so that
immediate measures can be taken. All this to extend the battery’s lifetime and save costs in the long
term.
1.4 Expert Modular highlights
The Expert Modular is our latest generation, highly advanced battery monitor. It consists of an
intelligent active shunt and a remote control and display unit (CDU). The shunt has a Grid Optimized
footprint for perfect integration with our DC Modular series of high current busbars and fuseholders.
This advanced battery monitor not only shows the true state of charge. It also offers a large amount
of additional features to optimally supervise your battery system and control external equipment.
The Expert Modular is compatible with lead based and Lithium (LiFePO4) based batteries.
The Expert Modular can monitor up to three battery banks. The inputs for battery bank 2 and 3 can
also be configured for other purposes, like mid-point voltage measurement, key switch input or
backlight control. The Expert Modular battery monitor can measure DC currents up to 600Amps
(500Amp continuous) and voltages up to 70Vdc. So any lead- or lithium based battery from 12V up
to 48V can be monitored.
The installation time is minimal, requiring only one supply wire to the intelligent shunt base and a
single plug and play ‘QLINK’ (QuickLink) cable between the active shunt and the CDU. Furthermore,
the battery minus cable must be interrupted in order to insert the shunt into the high current circuit.
The Expert Modular is equipped with two QLINK bus ports. In the simplest setup, only one of the
QLINK ports will be used to connect to the CDU. However, additional accessories can be installed by
employing the second QLINK port. Such accessories are for example communication interfaces or an
alarm output expander box.
1.5 CDU display and control overview
Please see the image and information below for an overview of the display contents and the
controls.

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1. Left key (<) or Previous value
2. Menu or Enter key
3. Right key (>) or Next value
4. 7 character multipurpose information field
5. Alarm indicator
6. Selected battery input indicator
7. Value section for SoC (also for Function, Status and History parameter numbers)
8. State of Charge (SoC) bar. The five segment 0 –100% grid will show an animation when there
is a charge current (turning clockwise) or a discharge current (turning counter clockwise). The
animation speed will also increase when the charge or discharge current increases.
1.6 Active shunt status indicator
The connection and installation details of the active shunt are already explained in the installation
guide. However, the active shunt is also equipped with a smart status indicator light that deserves
special attention. Please see the image below for the location of the status indicator:
The status indicator has multiple operating modes, distinguished each by colour or flash interval.
Please see the table below for an overview of the operating modes:
Table 1
Status colour
Status flash
interval1)
Description
Green
Slow
Main battery healthy (SoC > 50%)
Orange
Slow
Main battery needs to be recharged (SoC = 30 –50%)
Red
Slow
Main battery empty, recharge now (SoC < 30 %)
Red
Fast
Error
Orange
Fast
Initializing
1) Status flash interval times are 2 seconds for ‘Slow’and 0.5 seconds for ‘Fast’

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2. QUICKSTART
2.1 General
This chapter describes the minimum amount of steps that need to be followed in order to get your
Expert Modular up and running. It assumes that the enclosed installation guide has been followed
carefully and that the Expert Modular is powered up for the first time. After this the Setup wizard
will start automatically. If the Setup wizard does not start and the Expert Modular will jump to the
normal operating mode after power up, it has already been configured before. In that case you can
choose to restore the factory default settings (see chapter 7, for more information) and start from
the beginning. Please see the next chapter for more details about the Setup wizard.
2.2 Setup wizard
The Setup wizard will guide you through a few basic steps that are essential for a correctly
functioning Expert Modular. No other Function settings can be accessed before the Setup wizard has
been completed.
Step 1-2: Main battery type
The display will start by showing the battery type selection screen. You can use the left (<)
and right (>) arrow keys to select between AGM (default), GEL, Flooded and Lithium LiFePO4.
Please consult your battery manual or supplier, to find out the correct type of your battery
system. Once the selection has been made, press the MENU key to jump to the next step.
Step 2-2: Main battery capacity
The default battery capacity value is 200Ah. This can be changed by pressing the left or right
arrow keys until the desired value is reached. The standard battery capacity value is based on
a discharge rate of 20 hours. When your battery capacity is rated at a different discharge
rate, please change this in Function F1.2 (see chapter 6.1) afterwards. Once the selection has
been made, press the MENU key for 3 seconds to finalize the Setup wizard.

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If you wish to make any changes to the Main battery type or capacity afterwards, you can
always edit Functions F1.0 and F1.1 (see chapter 6.1).
The Setup wizard does not include any configuration steps for battery banks connected
to the B2 and B3 inputs. If your system does include a second or third battery, please
configure these manually using Functions F2 and F3 (see chapter 6.2 and 6.3).
After the Setup wizard has been completed, the Expert Modular will take a few seconds to analyze
your battery and estimate the nominal battery voltage as well as the current State of Charge (%). The
State of Charge readout will show a small animation while it is calculating.
!
When a lithium battery type is selected, only the nominal battery voltage will be
estimated. A start value for the State of Charge is not given yet and represented by ‘- -
%‘. A complete charge cycle is needed to obtain the exact State of Charge value.
!
For the highest accuracy, it is important that the battery is not being charged or
discharged during this analysis time!
When your battery system has a nominal voltage level other than listed in table 2, you need to
manually change this in Advanced Function A07.
Table 2 shows how the Expert Modular determines the nominal voltage of your battery bank. This
table is valid for all three battery bank inputs. Please note however, that inputs +B2 and +B3 do not
support LiFePO4 batteries. As you can see in table 2, the estimated number of battery cells are also
mentioned. Except for individual 2V lead- or 3V Lithium cells, all batteries contain a number of
internal cells in series. A 12V lead acid battery for example, contains 6 cells internally. The Expert
Modular needs to know the number of cells, since its calculation algorithms are cell based.
Table 2
Measured voltage
Assumed nominal voltage for
lead based battery
(number of internal cells)
Assumed nominal voltage for
LiFePO4 based battery
(number of internal cells)
Vbatt < 5.0V
-
-
5.0 < Vbatt < 7.5V
6V
(3 cells)
6V
(2 cells)
7.5 < Vbatt < 10.0V
6V
(3 cells)
9V
(3 cells)
10.0 < Vbatt < 15.0V
12V
(6 cells)
12V
(4 cells)
15.0 < Vbatt < 20.0V
18V
(9 cells)
18V
(6 cells)
20.0 < Vbatt < 30.0V
24V
(12 cells)
24V
(8 cells)
30.0 < Vbatt < 40.0V
36V
(18 cells)
36V
(12 cells)
VBatt > 40.0V
48V
(24 cells)
48V
(16 cells)

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Once the Expert Modular shows the estimated state of charge value, it is now ready for use! Over
time, it will keep on learning your battery and the estimated state of charge will become increasingly
more accurate.
3. NORMAL OPERATING MODE
3.1 Overview of parameter readouts
In normal operating mode, the Expert Modular can show you a wide range of important battery
parameters. Each parameter can be accessed by pressing the left or right arrow keys. The main and
most important parameter is the State of Charge (SoC) in %. This value will always be displayed and
is also linked to the round bar graph at the outer edge of the display. Additionally, the Expert
Modular can show a second parameter at the bottom row of the display.
By default, the parameters voltage, current, time remaining and temperature are enabled with
temperature only shown when an optional temperature sensor is connected. Additional parameters
that are disabled by default are power and Amp-hours. The visibility of individual parameters can be
enabled or disabled through functions F9.0 to F9.8.
The default settings will allow the second parameter to only show for 120 seconds after the Expert
Modular has been accessed. This will keep the display clean under normal conditions, which might
be preferred by less technical end users. Function F9.9 sets the second parameter auto hide time
and also offers an option to always show the second parameter (auto hide =OFF).
The table below shows all available parameter readouts:
Table 3
State of charge (SoC) (%)
The SoC is the most important battery parameter. It shows
exactly how much charge is left in the battery. This value is
compensated for all known battery variables (age,
charge/discharge current, temperature etc.). 100% represents
a fully charged battery, while 0% represents a completely flat
battery. Typically, you should recharge a lead based battery
when the SoC has dropped below 50%. For a lithium based
battery, this level can be lower.
Main battery voltage (V)
Shows the voltage of the main battery bank connected to the
+B1 input.

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Battery bank 2 voltage (V)
Shows the voltage of battery bank 2 (connected to the +B2
input). This value will only be shown when the +B2 input is
configured as a second battery input (see Function F2.0).
Battery bank 3 voltage (V)
Shows the voltage of battery bank 3 (connected to the +B3
input). This value will only be shown when the +B3 input is
configured as a third battery input (see Function F3.0).
Main battery current (A)
Shows the current flowing in- or out of the main battery. A
negative sign indicates a discharge current and a positive sign
a charge current.
Main battery power (W)
Shows the power draw from the main battery (negative sign)
or the power flow into the battery (positive sign). This reading
is turned off by default and can be turned on in Function F9.2.
Main battery Amp-hours (Ah)
The amount of Amp-hours discharged from the battery. This
reading is turned off by default and can be turned on in
Function F9.3.
Main battery time remaining
(h:m)
Shows how much time is left under the present load, before
the battery is empty.

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Temperature (°C)
Shows the battery temperature when a temperature sensor is
connected to the Expert Modular. The default temperature
unit is °C, but it can be set to °F as well in Function F10.3.
3.2 Display messages
The Expert Modular can show a number of different status messages on the display. These will vary from
advisory- to error messages. Please see the table below for the available messages
Table 4
Message
Explanation
‘<battery name> Battery Full’
The main battery is fully charged. ‘<battery name>’ will
be replaced by the name given in Function 1.7
‘Low Voltage’
Low battery voltage alarm1)
‘High Voltage’
High battery voltage alarm1)
‘Low Battery’
Low main battery State of Charge (SoC) alarm1)
‘Low Time Remaining’
Low time remaining alarm for main battery1)
‘High Charge Current’
High charge current alarm for main battery1)
‘High Discharge Current’
High discharge current alarm for main battery1)
‘Low Temperature’
Low temperature alarm for main battery1)
‘High Temperature’
High temperature alarm for main battery1)
‘High Midpoint Deviation’
High midpoint deviation alarm for main battery1)
1) The number inside the battery icon indicates to which battery the message applies
3.3 Synchronization
The Expert Modular is a true next generation battery monitor that does not specifically require a full
synchronization before you can actually use it (except for LiFePO4 batteries). The smart internal
algorithms can already estimate the state of charge by performing a short battery analysis at start
up. Unlike many other battery monitors on the market, the Expert Modular will not get out of sync
easily when the battery is not being fully charged (synchronized) very often.
Nevertheless, for the highest State of Charge (SoC) readout accuracy, it is still advisable to regularly
synchronize the Expert Modular with your battery. A synchronisation step means nothing more than
performing a complete charge cycle on your battery. The Expert Modular will automatically detect
when a full charge cycle has been performed and resets the SoC value to 100%.
Performing full charge cycles regularly is also important to keep your battery healthy and to increase
its lifetime.

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Besides automatic synchronisations, you can also manually synchronize the battery
monitor, when you are sure that your battery is fully charged. This can be accomplished
by pressing both left and right arrow keys simultaneously for three seconds. After these
three seconds, the SoC value will be reset to 100%.
For people who prefer to use the older auto synchronization method of the Expert Pro and Lite
models, there is an Advanced function setting (A01) available that can be set to ‘Legacy’ mode. After
it has been set to Legacy mode, all needed auto synchronization parameters will show up in the
Advanced properties list to modify if desired. See chapter 6.8 for more information.
4. STATUS MENU
The Status menu is a read only menu that shows the current status of a number of Expert Modular
items. This menu can be accessed by the following sequence:
When the Status menu is entered, you can use the left and right arrow keys to browse through the
different status items. By pressing the MENU key, the selected status item can be viewed. Pressing
the MENU key again, will step back to the Status menu. From any menu position, the normal
operating mode can be accessed again by pressing the MENU key for 3 seconds. The Expert Modular
will also jump back to the normal operating mode automatically after 30 seconds, when no keys are
pressed during this time.
The following Status menu items are available:
Table 5
Status item
Status description
S 1.0
Name. Shows the name of this product.
S 1.1
Firmware version. Shows the firmware version of this product.
S 1.2
Hardware version. Shows the hardware version of this product.
S 1.3
Serial number. Shows the serial number of this product.
S 2.0
Alarm 1. Indicates if Alarm 1 is active.
S 2.1
Alarm 2. Indicates if Alarm 2 is active.
S 2.2
Alarm 3. Indicates if Alarm 3 is active.
S 2.3
Alarm 4. Indicates if Alarm 4 is active.
S 3.0
State of Health (SoH). Shows the SoH of your battery system.
S 3.1
Midpoint voltage. Shows the present midpoint voltage value.
S 3.2
Midpoint deviation. Shows the present midpoint deviation percentage

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S 4.0
Total hours. Shows the number of hours that this product has been running.
S 4.1
Maintenance hours. Shows the number of hours left before maintenance is
required.
S 4.3
Hours since charged. Shows the number of hours since the battery has last been
charged.
S 4.4
Hours since synchronized. Shows the number of hours since the battery monitor
has last been synchronized with the main battery.
5. HISTORY MENU
The History menu is a read only menu that shows the Expert Modular’s History data. History data are
special events that are stored in internal memory. This menu can be accessed by the following
sequence:
When the History menu is entered, you can use the left and right arrow keys to browse through the
different History items. By pressing the MENU key, the selected History item can be viewed. Pressing
the MENU key again, will then step back to the History menu. From any menu position, the Normal
Operating Mode can be accessed again by pressing the MENU key for 3 seconds. The following
History menu items are available:
Table 6
History item
History description
H 1.0
Average discharge (Ah). Average discharge of your main battery in Ah. This
number will be recalculated after each synchronization.
H 1.1
Average discharge (%). Average discharge of your main battery in percent. This
number will be recalculated after each synchronization.
H 1.2
Deepest discharge (Ah). Deepest discharge of your main battery in Ah.
H 1.3
Deepest discharge (%). Deepest discharge of your main battery in %.
H 1.4
Total Ah removed. The total number of Amphours removed from the main
battery. When exceeding 999Ah, the units change to kAh and the displayed
value must be multiplied by 1000.
H 1.5
Total Ah charged. The total number of Amphours charged to the main battery.
When exceeding 999Ah, the units change to kAh and the displayed value must
be multiplied by 1000.
H 1.6
Total kWh removed. The total number of kWh removed from the main battery.
When exceeding 999kWh, the units are changed to MWh.
H 1.7
Total kWh charged. The total number of kWh charged to the main battery.
When exceeding 999kWh, the units are changed to MWh.
H 1.8
Cycle count. The number of charge / discharge cycles.
H 1.9
Synchronization count. The number of synchronizations.
H 2.0
Alarm 1 count. The number of times Alarm 1 has been triggered.

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H 2.1
Alarm 2 count. The number of times Alarm 2 has been triggered.
H 2.2
Alarm 3 count. The number of times Alarm 3 has been triggered.
H 2.3
Alarm 4 count. The number of times Alarm 4 has been triggered.
6. FUNCTION SETUP MENU
In the Function setup menu, your Expert Modular can be adjusted further to fit your needs. This
menu can only be entered after you have finished the initial Setup wizard. The following sequence
gives access to the Function menu:
When the Function setup menu is entered, you can use the left and right arrow keys to browse
through the different Functions. By pressing the MENU key, the selected Function value can be
viewed. The left and right arrow keys can now be used to change this value. Pressing the MENU key
again, will then step back to the Function menu. From any menu position, the normal operating
mode can be accessed again by pressing the MENU key for 3 seconds. This will also save any
Function value changes to internal memory. When no keys are pressed for 120 seconds while
operating in the Function setup menu, the Expert Modular will automatically return to the normal
operating mode again without saving any Function value changes. All available Functions are
described in the next chapters.
When the message ‘Locked’ appears on the display while trying to edit one of the
Functions, the Expert Modular should be unlocked first. See chapter 8 for more
information.
6.1 Battery bank 1 (Main) properties
F1.0
Battery type. Choose the chemistry type of your battery. Table 7 shows the available
types.
Default: AGM
Range: see table 7
Table 7
Battery type
Description
AGM
Typical deep cycle sealed lead acid battery with Absorbed Glass Matt
construction.
GEL
Typical deep cycle sealed lead acid battery with ‘gelled’electrolyte.
Flooded
Typical flooded (wet-) lead acid battery.
LiFePO4
Typical Lithium iron Phosphate battery (does not apply to +B2 and +B3 inputs)

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F1.1
Battery capacity. Your Main battery’s capacity in Amphours (Ah).
Default: 200Ah
Range: 10 –10000Ah
Step size: variable
F1.2
Nominal discharge rate (C-rating). The discharge rate (in hours) at which the battery
manufacturer rates your battery’s capacity.
Default: 20h
Range: 1 –20h
Step size: 1h
F1.3
Nominal temperature. The temperature at which the battery manufacturer rates your
battery’s capacity.
Default: 20°C
Range: 0 –40°C
Step size: 1°C
F1.4
Peukert's exponent. 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 1.17. A value of 1.00 disables the Peukert
compensation and could be used for Lithium based batteries.
Default: 1.17
Range: 1.00 –1.50
Step size: 0.01
F1.6
Battery temperature. In this Function the average battery temperature can be adjusted
when no temperature sensor is connected. When a temperature sensor is connected, the
temperature readout in the Normal Operating Mode is enabled.
Default: 20°C
Range: -20°C –50°C
Step size: 1°C
F1.7
Battery bank 1 name. Choose a display name for your battery bank that comes nearest to
your application.
Default: MAIN
Range: see table 8
Table 8
Battery bank name
Description
Bank 1
Battery bank 1
Bank 2
Battery bank 2
Bank 3
Battery bank 3
Main
Main battery bank
Aux.
Auxiliary battery bank
Aux.1
Auxiliary battery bank 1
Aux.2
Auxiliary battery bank 2
Primary
Primary battery bank
Secndry
Secondary battery bank
Start
Starter battery
Service
Service battery bank
Accesry
Accessory battery bank
House
House battery bank
Port
Port battery
Starbrd
Starboard battery bank
Power
Power battery bank
Gen.Strt
Generator starter battery
Bowtrst
Bow thruster battery
Radio
Radio battery

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Vehicle
Vehicle battery
Trailer
Trailer battery
Drive
Drivetrain battery
Brake
Brake battery
Solar
Solar battery
Other
Other battery
6.2 Battery bank 2 properties
F2.0
Battery bank 2 function. Set the function for the battery bank 2 (+B2) input.
Default: DISABLE
Range: see table 9
Table 9
Function
Description
DISABLE
Input is not used.
AUX.BAT
Use input for monitoring an additional battery bank.
MAIN.BAT
Use input for measuring the voltage of the Main battery bank. This can be useful
for systems with a long supply wire to the +B1 input. In order to avoid
measurement errors due to voltage drops across the combined supply/sense wire,
the voltage can also be measured independently via +B2 or +B3.
MIDPNT
Use input for midpoint or center voltage measurement in 24V and 48V systems.
For more information on midpoint voltage measurement and setup, please see
appendix 1 in the online version of this manual, available at www.tbs-
electronics.nl/downloads
KEYSW.
Use input to connect to an external key switch to turn off the CDU display. This can
be used to mimic a turned off battery monitor when it is installed in the dashboard
of an EV. The CDU display will still temporarily turn on when a button is pressed on
the front panel. The active shunt keeps on operating in the back-ground. A voltage
< 1V turns off the display and a voltage of > 1.5V turns it on.
HOURCNT
Use input to control hour counting (Total- and Maintenance hours). When the
applied voltage is >1.5V, hour counting will start. When the voltage is < 1V, hour
counting will be paused again. This option can be used to accumulate the
operating hours of the complete system, such as a forklift truck.
BKLIGHT
Use input to enable or disable the display backlight of the CDU. When the applied
voltage is > 1.5V, the backlight is enabled. When the voltage is < 1V, the backlight
is disabled.
F2.1
Battery bank 2 type (will only show when F2.0 is set to AUX.BAT). Choose the chemistry
type of your battery.
Default: AGM
Range: see table 7
F2.2
Battery bank 2 name (will only show when F2.0 is set to AUX.BAT). Choose a display name
for your battery bank that comes nearest to your application.
Default: AUX.1
Range: see table 8

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6.3 Battery bank 3 properties
F3.0
Battery bank 3 function. Set the function for the battery bank 3 (+B3) input.
Default: DISABLE
Range: see table 9
F3.1
Battery bank 3 type (will only show when F3.0 is set to AUX.BAT). Choose the chemistry
type of your battery.
Default: AGM
Range: see table 7
F3.2
Battery bank 3 name (will only show when F3.0 is set to AUX.BAT). Choose a display name
for your battery bank that comes nearest to your application.
Default: AUX.2
Range: see table 8
6.4 System properties
F4.0
Time remaining averaging filter. Specifies the time window of the moving averaging filter.
There are four settings, where setting 0 gives the fastest Time remaining readout
response and setting 3 the slowest. The best setting will depend on the type of battery
load and your personal preference.
Default: 1
Range: 0 –3
Step size: 1
F4.1
Enable maintenance hour count. When set to OFF, only the operating hours are
accumulated which starts once the battery monitor is being powered up (unless Functions
F2.0 or F3.0 are set to HOURCNT, so that operating hours are only counted when the +B2
or +B3 input is ‘high’). When set to ON, the counted hours are being subtracted from the
Maintenance interval hours set in Function F4.2.
Default: OFF
Range: OFF / ON
F4.2
Maintenance interval. Choose a time schedule for maintenance. When Function F4.1 is
set to ON, the accumulated operating hours are being subtracted from the maintenance
interval hours set in this Function. A maintenance alarm message will automatically
appear on the display, once the maintenance interval has reached 0 hours.
Default: 5000h
Range: 100 –100000h
Step size: 100h
6.5 Alarm properties
The Expert Modular offers four independent configurable alarms. This offers great flexibility for the
installer. Whether you wish to configure four completely different alarm types, or trigger an
individual alarm on for example four different State of Charge values, there are almost limitless
possibilities. Especially when adding an optional Alarm Output Expander to your Expert Modular
system. This will allow each alarm to trigger a dedicated alarm relay.
F5.0
Alarm 1 type. Choose which parameter will trigger this alarm. The default ‘SOC.Low’ will
trigger an alarm when the State of Charge has dropped below a bottom limit. All available
alarm types are described in table 10.
Default: SOC.Low
Range: see table 10