Vetra Skalapp 305 User manual

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Skalapp – Operating Manual
Skalapp – User’s Manual
Due to continuous development activities, this manual may not fully correspond to the current
appearance of the application and its range of functions.
Manufacturer:
VETRA International s.r.o.
Pod Korabem 727
345 06 KDYNE
Czech Republic
Contact:
[phone]
[email protected]
www.vetrainternational.cz

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Contents
Using the manual ..................................................................................................................................................................3
Scope of installation............................................................................................................................................................3
Description of the installation.........................................................................................................................................4
Intended use of the scale..............................................................................................................................................5
Safety instructions...........................................................................................................................................................5
Equipment disposal.........................................................................................................................................................5
Technical Data ...................................................................................................................................................................6
Metrological characteristics........................................................................................................................................6
Switching tablet on/off......................................................................................................................................................7
Charging the tablet ..........................................................................................................................................................7
Launching the scale interface and logging in ...........................................................................................................7
Zeroing.......................................................................................................................................................................................8
Weighing page........................................................................................................................................................................9
Loading....................................................................................................................................................................................10
Backweighing.........................................................................................................................................................................11
Selection of basic data......................................................................................................................................................12
Quick selection settings...............................................................................................................................................12
Completing the weighing operation............................................................................................................................13
Standby mode.......................................................................................................................................................................13
Working with multiple attachments...........................................................................................................................14
Target weight ....................................................................................................................................................................... 15
Using Target weight ...................................................................................................................................................... 15
Summary document ..........................................................................................................................................................16
Scale interface menu......................................................................................................................................................... 17
Scale interface settings ............................................................................................................................................... 17
Weighing data.................................................................................................................................................................24
Termination of work with the scale........................................................................................................................... 25
Loading example ................................................................................................................................................................ 26
Error messages and troubleshooting .......................................................................................................................28
The tablet does not turn on ......................................................................................................................................28
Scale disconnected .......................................................................................................................................................28
Pressure too high / Sensor error............................................................................................................................28

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Using the manual
Read this entire manual before operating the scale and keep the instructions in an easily accessible
location. If you misplace it, please request a new one from us.
Ensure these instructions are available to all persons using the scale. The scale operator is
responsible for training all personnel who will use the scale. Training should strictly follow these
instructions to ensure proper and safe operation.
Scope of installation
Skalapp Tablet BaseBoard Computing Unit
Optional Tilt Sensor 2x SPS 500 Pressure Sensors
Bucket Position Sensor (O1) Boom Position Sensor (K2)
•Kit to mount pressure sensors
•Cables to connect bucket and boom position sensors
•Cables to connect tablet
•
User’s Manual

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Skalapp – Operating Manual
Description of the installation
The scale consists of two
pressure sensors that connect to
the lifting cylinder for measuring
pressure above and below the
piston rod.
Bucket and boom position
sensors
check if the bucket is
closed, as well as determine the
weighing position and lifting
speed.
The optional
tilt sensor
guarantees that weighing is
carried out under approved
conditions.
The BaseBoard computing unit
collects sensor data to
accurately compute the weight
of the bucket load. The resulting data is then sent to the Skalapp tablet for display of the calculated
weight, as well as configuration of scale settings via the scale interface.
Skalapp
tablet
BaseBoard
128 129
Bucket
sensor
O1
Boom
sensor
K2
24V
Tilt
sensor
Pressure sensors
USB 5V
CAN BUS

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Intended use of the scale
Determine the weight of bulk material on vehicles with hydraulic lifting mechanisms (e. g.,
wheel loaders or forklifts).
Important points to ensure scale accuracy
Scale will not function correctly if material sticks to the loading bucket. It is therefore
recommended to clean the loading bucket after each load to ensure accurate weighing.
Weighing can be successfully carried out while machine is moving, but only during a
smooth and bump-free ride
Changes to the lifting boom, lifting cylinder, location of the position sensors, or attachment
affect the scale accuracy and require immediate recalibration
When weighing small amounts of material, compared to the machine's total loading
capacity, deviations may be too large for the weight to be calculated accurately
Safety instructions
Scale should only be used for its intended purpose
Scale is subject to the same safety rules as the machine on which it is installed. Do not
tamper with any scale components during machine operation, except for the Skalapp
tablet, which is meant to be used as an interface to control the scale. Manipulation of the
weighing system should only be carried out if the machine is switched off and only by the
manufacturer or persons authorized and trained by the manufacturer.
Exceeding a vehicle’s or tralier’s maximum loading capacity negatively impacts its safe
operation and is not permitted. Always confirm the maximum loading capacity of
vehicles/trailers being loaded and strictly comply with such limits.
Scale is not approved for use in potentially explosive environments or environments
containing aggressive substances (e. g. acids, alkalis, galvanizing baths)
Equipment disposal
Never dispose of scale components in household waste containers
Electronic devices should be disposed of separately and in an environmentally friendly
manner.
The BaseBoard computing unit includes a button battery, which is located under the
screw-on cover of the unit, and should be removed before disposing of the device.

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Technical Data
Rated voltage: 24 V DC
Power input: max 1 A
Operating temperature: From -10° C to +40° C
Humidity: Up to 85% at 40° C, non-condensing
Nominal pressure: 0 - 500 bar
Destruction pressure: > 2100 bar
Tablet Display: 8"capacitive touch screen, 1280 x 800 pixels
Tablet Dimensions: 232 x 158 x 22 mm
Tablet weight: 810 g
Metrological characteristics
All metrological characteristics of the device (Max, Min, and scale interval calculation) are
displayed in the footer of the scale interface.
If the scale is approved for commercial weighing, the application footer contains the accuracy
class identification Y(b) and the type verification certificate.
If the scale acts as checkweigher, the data in the footer are displayed in red letters. Such scale
shall not be used in for commercial transactions.

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Switching tablet on/off
When the tablet is in sleep mode, you can simply start it by briefly pressing
the POWER button on the side of the tablet.
If the tablet completely shuts off, hold down the POWER button for 3
seconds and wait for it to start.
To turn off the tablet, hold down the POWER button and select “Shut
down” on the screen.
Charging the tablet
The tablet is typically connected to the baseboard computing unit, which
both calculates bucket weight and powers/charges the tablet.
To optimize battery life, automatic charging of the tablet will start when battery capacity reaches
30% and will stop charging when capacity reaches 90%. Automatic charging is fully initiated by
the scale and does not require any interaction by the user.
Make sure to switch off the tablet if the loader is stopped or if the battery circuit is switched off,
as the tablet’s battery could be completely discharged! Charging begins as soon as the machine’s
electrical circuit is switched on. In case of a full discharge, the tablet can be switched on again after
about 30 minutes of charging and will be ready for use.
Launching the scale interface and logging in
The scale interface is pre-installed on the supplied tablet and is ready for immediate use.
The interface allows individual registration of drivers, with each
receiving a unique PIN to login and begin use. Permission levels can
also be assigned to each user.
There are two types of users in the factory settings:
•Admin (PIN)
•User (no PIN)
To login as an Administrator, tap the PIN field, enter your PIN
(default PIN: 1234) and then tap the arrow icon next to the PIN
number to confirm.
To login as a user, just tap the arrow icon to enter the scale
interface.
Note 1: During scale configuration, the ability of users logging in
without a PIN can be disabled. If anonymous login is disabled, the
Administrator must create additional users and set their PINs to allow them to login to the scale
interface.
Note 2: After user login, the scale must always be zeroed to ensure accuracy. However, if loading
is active, its values are retained and the user can carry on with loading after zeroing is carried out.

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Zeroing
Zeroing the scale allows it to reset to current operating conditions
(oil temperature, material stuck in bucket, etc.), thus ensuring
accurate weighing.
The user is prompted to zero whenever:
-The scale is switched on
-Attachment is changed (see “Working with multiple
attachments” section)
-A new login is performed
-Oil temperature increases/decreases by more than 10° C
since the last zeroing
-Timeout is reached since the last zeroing (usually 60 min.)
We recommend setting mandatory zeroing at the end of each
loading cycle (e. g. loading the truck) to account for material that
may be stuck in the bucket.
Different attachments can be independently calibrated and assigned their own profile for future
use. Zeroing is always required after changing an attachment.
Zeroing procedure:
1. Lower the boom with an empty bucket
2. Close the bucket
3. While machine is stationary, move the boom slowly and steadily through the weighing
position
If zeroing is successful, “Zeroing successful” is displayed
and the screen switches to weighing mode.
If zeroing fails, a message is displayed that describes the
problem:
Bucket not closedClose bucket
-Too large a difference in zero weight Clean
stuck material from bucket
-Fast/slow lifting speed Perform lifting
operation within defined speed range
Note: Users can manually select zeroing in the menu. When performing the zeroing procedure, all
current loading data is retained.

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Weighing page
The main page of the scale interface displays information about loading status, as well as allows
for control of the scale.
Overview and key functions:
-Access to master menu
-Data from bucket position sensor
-Weight of current bucket load
-Number of buckets loaded
-Display of active attachment (with ability to change attachment)
-Current total load weight of truck and trailer (with ability to switch between both)
-View of basic data (with ability to revise data)
-Quick selection menu (total of 9 quick select categories)
-Sleep/Standby button
-Complete/Save weighing button
Current bucket load
weight
Total truck load
weight
Total trailer load
weight
Quick selection
Complete weighing and
save
Basic data
Sleep/Standby mode
Number of buckets in load
Menu
Active attachment

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Loading
Use of the scale does not interfere with the normal loading procedure. Weighing is automatic and
does not require any control or interaction by the machine operator, so they can fully concentrate
on their job.
1. Lower the boom with an empty bucket and pick up the material
2. Close the bucket
3. Raise the boom through the weighing position at a slow and steady speed
After passing the weighing position, the scale interface gives an audible alarm to confirm
successful weighing and displays the bucket weight.
TIP: You can select where the next bucket load will be emptied by tapping on the truck or trailer
image.
4. Empty material at destination (e.g., truck)
After emptying the material at its destination, the scale automatically adds this bucket weight to
the total truck/trailer load weight and switches back to the weighing page. Confirmation and
addition of the bucket weight to the total truck/trailer load weight may be manually performed by
pressing the "
Confirm " button.
Note: As long as the "Fixed weight" page is displayed, the weight of the last bucket load is not
added to the total truck/trailer load weight. The page shows the weight of the future total
truck/trailer load weight (after adding the weight of the current bucket load).
While the "Fixed weight" is displayed, the bucket weight can be deleted without adding to the
weight of the future total truck/trailer load.
Example: The current bucket weight can be deleted, material dumped out and a new load
reweighed if the total load weight would exceed the maximum loading capacity of the truck or
trailer. The bucket weight will only be added after dumping material on the target destination.
Weight of current bucket
load
Total of future load

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An error message will be displayed on the
screen if conditions for accurate weighing are
not met. A complete list of error messages
can be found in the “Error messages and
troubleshooting” section of this manual.
Backweighing
If the complete contents of a bucket are not dumped on the target destination (e.g., it would not fit
on the truck or trailer), and material is left in the bucket, the weight of the bucket load must be
deducted from the weight of the total truck/trailer load. The "back weighing" function, which is
always displayed after weighing, is used in this case.
1. Load material in bucket and weigh it
2. Select the "Backweighing" function on the screen
3. When backweighing is activated, a notification is displayed on the scale interface that the
weight of the next bucket load will be deducted from the weight of the previous bucket
load.
4. Empty the contents of the current bucket load
5. Lower the bucket and weigh the remaining material
6. The weight of this material will be displayed in large numbers with a negative sign and will
be deducted from the weight of the total truck/trailer load.
7. Manually confirm the deducted bucket weight or simply dump the material outside the
truck for an automatic deduction.
Note: Backweighing is saved like a normal bucket load, except as a negative amount. Backweighing
is therefore saved and transferred to the Skalapp Online portal (if you utilize it).
Example of an error message

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Selection of basic data
During loading, you can select basic data from any of the available
categories (Material, Customer, Vehicle, Order, Delivery method) by
tapping on it. Subsequently, it is possible to view all selected
categories and revise them, if necessary.
If you do not want to use one of the basic data items, tap on the "
Cancel selection " button.
If you do not intend to use a certain basic data item, and do not want it displayed, it can be
completely turned off in the settings section by tapping on the switch that’s next to the basic data
category (p. 18).
When selecting the basic data, you can create a new item by tapping on the "
New " button. To edit
an item, long press on it. For full administration (especially for selection of active basic data
categories), select the "
Basic data " item in the scale interface menu.
You can change/edit the basic data item at any time by long-pressing on it. A long press opens the
details of the entry for full editing.
TIP: Up to 9 quick selections of frequently used basic data combinations can be saved
and accessed via the Quick Selection icon. Just tap on the item to set as one of the quick
selections.
Quick selection settings
•To set up a quick selection, just tap it, fill in the settings, and save
•To edit an existing quick selection item, just long press it and an edit window will open

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Completing the weighing operation
After the loading process is complete (e.g., truck is loaded), press
the "FINISH WEIGHING" button and you will be taken to the “Finish
weighing”page.
This page displays a summary of all information about the total
truck/trailer load, which can be completed in several ways. In all
cases, a record of all information will be stored in the scale’s
memory and can be traced back.
1. Pressing the "Finish" button will save all data and close the
operation.
2. Pressing the „Print" button will both save and print the data on
a connected printer. If more than one printing template is
defined, a list of templates will be displayed before printing (more on template settings can
be found in the “Working with printing templates” section).
3. The total truck/trailer load can be cancelled by pressing the "Cancel weighing" button. Even
after cancelling the weighing, it will be saved in the application’s memory with a “Cancel” flag.
TIP: You can edit basic data directly from the “Weighing complete” page by tapping on the basic
data icon right above it.
After the total truck/trailer load is finished, the scale is ready for the next weighing operation. In
the case of mandatory zeroing of the scale after loading is finished, the user will be prompted to
carry out zeroing (see “Zeroing” section).
TIP: If multiple copies are selected, you will be
asked after each printout if you want to print
another copy.
Standby mode
In some situations, it could be appropriate to switch off the weighing mode and use
the machine without weighing (for example, when truck loading stops and internal
material processing is performed, etc.).
This is done by switching the scale interface to Standby mode when all weighing functions are
inactive, which then greys out the display. Tapping anywhere on the display returns the scale
interface to normal operating mode. If the scale interface is in Standby mode for an
extended amount of time, it will put itself to sleep and turn off the display. The
interface can be woken up by briefly pressing the
Power button.

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Working with multiple attachments
The scale can be calibrated to work with multiple attachments (e.g., loading
bucket, forks). Calibration of different attachments takes into account the
different center of gravities and weight of the
attachment itself, which are both necessary to
achieve accurate weighing.
The active attachment's name, and its icon, are always displayed on
the application's weighing page.
To use a different attachment, just tap the attachment icon on the
“Zeroing” page for a list of available calibration profiles. After
selecting the attachment, zeroing should be carried out. When this
is complete, you can start weighing.
Changing the attachment can also be called up from the weighing
page by tapping the attachment icon. After changing the
attachment, you will be prompted to carry out zeroing before
weighing can begin.
CAUTION: You cannot change the attachment if the load is not
finished! In this case, you will be prompted to finish the loading before changing the attachment.

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Target weight
The "Target weight" function constantly monitors the weight of
the total truck/trailer load, displays the remaining quantity, and
warns you when the set target weight has been achieved or
exceeded.
The target weight function can be enabled in Settings »Advanced
settings» Target weight, where its parameters can be set.
-Reset mode after loading - After activation, the target
weight mode will be canceled when loading is finished
-Audible alarm – an audible notification that sounds when
the target weight is achieved or exceeded
-Acceptance boundary - % fulfillment of the target weight
when loading is considered fulfilled (when setting a 5%
limit for a target weight of 25t, the load will be considered
fulfilled if 23.75t to 26.25t is achieved)
Using Target weight
When the "Target weight" function is enabled, the function activation icon is displayed. After
activation, the scale starts to monitor the target weight.
Press the “truck” button to cancel the target weight and return to normal loading mode.

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Summary document
Weighing in the summary document mode allows you to record
several different materials within one activity. Up to ten summary
documents can be active at once and can be switched between
them. At the same time, it is possible to temporarily leave the
summary document regime, carry out the “Dispatch” transaction
(ie. loading of the vehicle) and return to the unfinished summary
document.
To activate the "Summary document" function, go to the scale
interface menu Settings » Advanced features » Summary
documents.
If the "Summary document" function is active, a menu is available in
the upper left part of the weighing window for quick selection
between unfinished documents, dispatch, or for creating another
summary document.
Each summary document is named and can be assigned any combination of basic data. Selected
basic data will be stored in the scale's memory and transferred for further processing to the
skalapp.online portal, if you use it.
How to work with a summary document
1. Open the menu and select “+ Summary document”
2. Set name, basic data and save
3. Add material(s) to summary document
4. Select material and load
5. Switch material and load
Termination of the summary document
1. Press "Document overview"
2. Confirm termination either by
Printout of the summary
document or just by Finishing
it.
On the document overview page, it is possible to additionally
change its name and the basic data used by clicking on the icon
above the window with their enumeration – just like with regular
weighing.
Attention! Changing the base data will only affect new weighings.
Weighing data already performed in the summary document cannot
be retroactively edited.

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Scale interface menu
The scale interface menu is displayed by swiping your finger from
the right edge of the screen or by pressing the menu icon in the
upper right corner of the screen.
•Clock display and setting
•Screen brightness
•Manual zeroing
•Interface settings
•Weighing data (Alibi records)
•Statistics
•User logout
•View user's daily performance
Scale interface settings
Settings and options of the interface are available to the user
depending on their permission level. Administrators have access to
all settings.
If the user does not have permission, the protected settings will not
be displayed.

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Basic data
A user with basic data management privileges can activate and
deactivate basic data categories. Hiding unused items reduces on-
screen clutter during loading.
After entering the selected category, individual basic data items
(Materials, Customers, Vehicles, Orders, Delivery Methods) can be
added, changed and deleted in the same manner as when modifying
them during loading.
All basic data contains an "Internal ID" field, which allows you to fill
in your own internal code, thereby allowing for easy pairing.
If synchronization with the skalapp.online portal is active, basic
data is automatically synchronized with the portal and other scales
without any user intervention. In exceptional cases (e.g., after
installing a new scale or changing tablets), although normally not
required, it may be necessary to synchronize data with the portal
using the "Synchronize All" button, which is available to Admin users.
Users
It is possible to add, delete and change users of the scale. You can change the PIN for access to the
scale and set permissions of individual users.
The following permissions are available:
-Editing basic data
-View statistics (in progress)
-Advanced scale settings
-User settings and their permissions
Note: Any user, regardless of authorization, can view "Device Information"

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Custom settings
The “Custom settings” item is used to customize the scale interface
to the specific needs of each user. You can set the language, delay
after which the scale switches to Standby mode, and alarm volume.
You can decide how numbers are displayed (decimal and thousand
separators).
Users with the highest "Admin" authorization can set parameters
for the calculation of monetary amounts, i.e., select the currency
symbol, its display, and method of rounding off the resulting values.
Tip: If weight is used to calculate amounts to be paid in cash, don’t
forget to set the rounding of numbers according to the smallest
available monetary unit. In the case of Czech crowns, it will be
whole crowns, i.e., 1.00. In the case of Euros, you can even select a
single euro cent.

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Advanced features
All advanced features that rarely change are available in this
section.
On this page, you can activate the saving of geographical
coordinates for individual data records. This function is especially
useful when sending data to the skalapp.online cloud service,
where geographical data can be further processed. We recommend
disabling this function if you don’t use data transfers.
Likewise, manual confirmation of each individual bucket load
weight can be enforced. If activated, the weight of the bucket will
not be automatically added. It will only be added to the total
truck/trailer load after confirmation by the operator. For most
applications, it is recommended to leave the scale in automatic
mode and not use manual confirmation.
Advanced features » Communication
The wireless communication function is especially useful for
sending weighing data to the Skalapp Online portal for processing
or for connecting to a printer.
Wireless items can be turned on / off directly from the
communication page by tapping the switch. For more detailed
settings of individual items, tap on the relevant line and detailed
settings will be displayed.
Wi-Fi settings
The procedure for connecting the tablet to a Wi-Fi network is the
same as any Android or Apple phone. Tap “Wi-Fi” to display access
points and their settings. After entering all information, you can
return to the communication settings page by pressing the physical
back button (second from the left) on the bottom of the tablet.
If you have an active connection to a Wi-Fi network, its name will be
displayed on the overview page.