KERN YKV-01 User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [e-mail]
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating and Installation
Instructions
Digital weighing transmitter
KERN YKV-01/02
Version 1.1
2019-04
GB
YKV-01-02-BA_IA-e-1911

2 YKV-01-02-BA_IA-e-1911
GB
KERN YKV
Version 1.12019-04
Operating and installation instructions
Digital weighing transmitter
Contents
1Technical data................................................................................................ 4
2Declaration of conformity ............................................................................. 5
3Appliance overview ....................................................................................... 6
4Basic Information (General).......................................................................... 7
4.1 Proper use.................................................................................................................................. 7
4.2 Improper Use.............................................................................................................................. 7
4.3 Warranty..................................................................................................................................... 7
4.4 Monitoring of Test Resources .................................................................................................... 8
5Basic Safety Precautions.............................................................................. 8
5.1 Pay attention to the instructions in the Operation Manual.......................................................... 8
5.2 Personnel training....................................................................................................................... 8
6Transport and storage................................................................................... 8
6.1 Testing upon acceptance ........................................................................................................... 8
6.2 Packaging / return transport....................................................................................................... 8
7Unpacking and placing.................................................................................. 9
7.1 Installation Site, Location of Use................................................................................................ 9
7.2 Unpacking and checking ............................................................................................................ 9
7.3 Transport Securing..................................................................................................................... 9
7.4 Installation Weighing transmitter - Platform.............................................................................. 10
7.4.1 Weighing system design........................................................................................................... 10
7.4.2 How to connect the platform..................................................................................................... 11
7.5 Connect weighing transmitter to PC......................................................................................... 12
8Configuration ............................................................................................... 13
9Adjustment................................................................................................... 14
10 Linearization / first adjustment................................................................... 15
10.1 Carrying out the linearization.................................................................................................... 16
10.2 Performance of a single point adjustment................................................................................ 17
11 Configuration using the KERN Balance Connection software ................ 18
12 Connection to your system......................................................................... 20
12.1 USB .......................................................................................................................................... 20
12.2 Bluetooth .................................................................................................................................. 20
12.3 RS232....................................................................................................................................... 21
12.4 Ethernet.................................................................................................................................... 22
12.5 WLAN ....................................................................................................................................... 22
13 Carrying out measurements ....................................................................... 24

YKV-01-02-BA_IA-e-1911 3
13.1 Using your own software.......................................................................................................... 24
13.1.1 Request weighing data......................................................................................................... 24
13.1.2 Zeroing and taring................................................................................................................ 24
13.2 Using the BalanceConnection software ................................................................................... 24
13.2.1 Functions.............................................................................................................................. 27

4 YKV-01-02-BA_IA-e-1911
1 Technical data
KERN (type) TYKV-01-A TYKV-02-A
Model YKV-01 YKV-02
Net weight (kg) 1.1 1.1
Dimensions of the
housing (B x D x H) mm 100 x 127 x 28 mm 100 x 127 x 28 mm
Permissible
ambient condition - 10° C to +40° C
Housing material Synthetic material
Humidity of air 80 % relative (not condensing)
Input voltage Mains
adapter 100 V - 240 V, 50 / 60 Hz
Input tension
Device 5 V, 500 mA
Interfaces USB-Host/Master
(Standard) USB-Host/Master (Standard)
WLAN/WiFi-Module
(factory option) WLAN/WiFi-Module (factory option)
RS 232 (standard) RS 232 (standard)
Bluetooth 4.0
(factory option) Bluetooth 4.0 (factory option)
- Ethernet (Standard)

YKV-01-02-BA_IA-e-1911 5
2 Declaration of conformity
The current EC/EU Conformity declaration can be found online in:
www.kern-sohn.com/ce

6 YKV-01-02-BA_IA-e-1911
3 Appliance overview
Example YKV-02-A:
Pos. Description
1 USB 2.0 type B
2 RS232
3 Ethernet
4 Connection to the load cell

YKV-01-02-BA_IA-e-1911 7
4 Basic Information (General)
4.1 Proper use
The digital weighing transmitter acquired by you is used in combination with a
platform and serves to determine the weighing value of material to be weighed. It is
intended to be used as a "non-automatic weighing system", i.e. the material to be
weighed is manually and carefully placed in the centre of the weighing plate. As soon
as a stable weighing value is reached the weighing value can be read.
4.2 Improper Use
Do not use weighing system (YKV and platform) for dynamic weighing. In the event
that small quantities are removed or added to the material to be weighed, incorrect
weighing results can be displayed due to the "stability compensation" in the device.
(Example: Slowly draining fluids from a container on the balance.)
Do not leave permanent load on the weighing pan. This may damage the measuring
system.
Impacts and overloading exceeding the stated maximum load (max) of the weighing
plate, minus a possibly existing tare load, must be strictly avoided. The weighing
system could be damaged.
Never operate the weighing system in explosive environment. The serial version is
not explosion protected.
Changes to the weighing system's design are not permitted. This may lead to
incorrect weighing results, safety-related faults and destruction of the weighing
system.
The weighing system may only be operated in accordance with the described default
settings. Other areas of use must be released by KERN in writing.
4.3 Warranty
Warranty claims shall be voided in case
•Our conditions in the operation manual are ignored
•The appliance is used outside the described uses
•The appliance is modified or opened
•Mechanical damage or damage by media, liquids, natural wear and tear
•The appliance is improperly set up or incorrectly electrically connected
•The measuring system is overloaded

8 YKV-01-02-BA_IA-e-1911
4.4 Monitoring of Test Resources
In the framework of quality assurance the measuring-related properties of the
weighing system and, if applicable, the testing weight, must be checked regularly.
The responsible user must define a suitable interval as well as type and scope of this
test. Information is available on KERN’s home page (www.kern-sohn.com with regard
to the monitoring of display units’ test substances and the test weights required for
this. In KERN’s accredited DKD calibration laboratory test weights and digital
weighing platforms may be calibrated (return to the national standard) fast and at
moderate cost.
5 Basic Safety Precautions
5.1 Pay attention to the instructions in the Operation Manual
Carefully read this operation manual before setup and
commissioning, even if you are already familiar with KERN balances.
5.2 Personnel training
The appliance may only be operated and maintained by trained personnel.
6 Transport and storage
6.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
6.2 Packaging / return transport
Keep all parts of the original packaging for a possibly
required return.
Only use original packaging for returning.
Prior to dispatch disconnect all cables and remove
loose/mobile parts.

YKV-01-02-BA_IA-e-1911 9
7 Unpacking and placing
7.1 Installation Site, Location of Use
The weighing system is designed to achieve reliable weighing results under normal
conditions of use.
You will work accurately and fast, if you select the right location for your weighing
system.
On the installation site observe the following:
•Place the weighing system on a firm, level surface;
•Avoid extreme heat as well as temperature fluctuation caused by installing
next to a radiator or in the direct sunlight;
•Protect the weighing system against direct draughts due to open windows and
doors;
•Avoid jarring during weighing;
•Protect the weighing system against high air humidity, vapours and dust;
•Do not expose the weighing system to extreme dampness for longer periods
of time. Non-permitted condensation (condensation of air humidity on the
appliance) may occur if a cold appliance is taken to a considerably warmer
environment. In this case, acclimatize the disconnected appliance for ca. 2
hours at room temperature.
•Avoid static charge of weighed items or weighing container.
Major display deviations (incorrect weighing results) may be experienced, should
electromagnetic fields (e.g. due to mobile phones or radio equipment), static
electricity accumulations or instable power supply occur. Change location or remove
source of interference.
7.2 Unpacking and checking
Take the weighing transmitter out of the packaging, remove the packaging material
and install at the designated workstation. Check if that there has been no damage
and that all packing items are present.
Scope of delivery / serial accessories:
•Weighing transmitter
•Net adapter EU/UK/US
•USB A to USB B cable
•These installation instructions
•Software KERN BalanceConnection
in the downloads area on http://www.kern-sohn.com
7.3 Transport Securing
Please note: if the YKV is used together with platform with transportation lock, this
transportation lock must be released prior to use.

10 YKV-01-02-BA_IA-e-1911
7.4 Installation Weighing transmitter - Platform
Installation / configuration of a weighing system must be carried out by a well
acquainted specialist with the workings of weighing balances.
7.4.1 Weighing system design
The digital weighing transmitter is suitable for connection to any analogue load cell in
compliance with the required specifications.
The following data must be established before selecting a load cell:
•Weighing balance capacity
This usually corresponds to the heaviest load to be weighed.
•Preload
This corresponds to the total weight of all parts that are to be placed on the
weighing cell such as upper part of platform, weighing pan etc.
•Total zero setting range
This is composed of the start-up zero setting range (± 2%) and the zero
setting range available to the user via the ZERO-function (2%). The total
zero setting range equals therefore 4 % of the scale’s capacity.
The addition of weighing scales capacity, preload and the total zero setting
range give the required capacity for the weighing cell.
To avoid overloading of the weighing cell, include an additional safety
margin.

YKV-01-02-BA_IA-e-1911 11
7.4.2 How to connect the platform
Connection to power supply via USB
•For power supply we recommend to connect the YKV to the PC.
For this purpose connect the USB coupling of the YKV to the PC.
•If another interface is used, power has to be supplied via the
external power pack.
For this purpose connect the power pack to the USB coupling of
the YKV.
Prior to starting the assembly work, disconnect the digital weighing
transmitter from the mains.
Weld the individual wires of the load cell cable to the printed circuit board.
Example of application:
Couplings from left to right described as follows:
E+ S+ OUT+ OUT- S- E- Shield
The strain relief of the load cell cable is between 4 mm and 8 mm.

12 YKV-01-02-BA_IA-e-1911
7.5 Connect weighing transmitter to PC
Weighing data can de edited to connected networks or PCs via the interfaces. In
reverse order, control commands and data inputs may be made via the connected
devices (such as PC).
Every interface has to be configured according to the peripheral device and the
desired function.
For data transfer a transfer software is required. Our optionally available transfer
software Balance Connection SCD 4.0 gives you a lot of possibilities for transfer and
recording.
Available interfaces:
YKV-01 YKV-02
USB
Standard Standard
WLAN/WiFi
Factory option Factory option
RS232 Standard Standard
Bluetooth 4.0
Factory option Factory option
Ethernet
-
Standard

YKV-01-02-BA_IA-e-1911 13
8 Configuration
Description Sent to
balance
Answer of
balance
Define maximum load (exp.: 60 kg) and unit
(exp.: kg)
JDC 60.00 kg
JDC A
Resolution (decimal digits and readability)
Exp.: 0.05 kg
JDD 0.05 kg
JDD A
Determine overload (exp. 60.45 kg):
JDO 60.45 kg
JDO A
Define Adjustment weight (Bsp.: 60.00 kg)
JDA 60.00 kg
JDA A
Further linearization points can be defined with the JDL command.
•Please observe the sequence; the same unit must be used for all
parameters.
•The configuration can also be carried out using the BalanceConnection
software. Please refer to the corresponding chapter down below.

14 YKV-01-02-BA_IA-e-1911
9 Adjustment
As the acceleration value due to gravity is not the same at every location on earth,
every digital weighing platform must be coordinated - in compliance with the
underlying physical weighing principle - to the existing acceleration due to gravity at
its place of location (only if the weighing system has not already been adjusted to the
location in the factory). This adjustment process must be carried out for the first
commissioning, after each change of location as well as in case of fluctuating
environment temperature. To receive accurate measuring values it is also
recommended to adjust the digital weighing platform in weighing operation.
•Prepare the required adjustment weight. The adjustment weight to be
used depends on the capacity of the weighing system. Carry out
adjustment as near as possible to the weighing system’s maximum
weight. Info about test weights can be found on the Internet at:
http://www.kern-sohn.com.
•
Observe stable environmental conditions. Stabilisation requires a certain
warm-up time.
•Make sure that the balance data are input correctly

YKV-01-02-BA_IA-e-1911 15
10 Linearization / first adjustment
The linearity indicates the largest deviation of the weight display of a balance to the
value of the respective test weight for plus and minus over the entire weighing range.
If a linearity deviation is detected during test equipment monitoring, this can be
improved by linearization.
•A linearization is absolutely necessary after changing the weighing
parameters with JDC, JDD, etc.
•For scales with a resolution> 15,000 division steps, it is recommended to
carry out a linearization.
•For scales with a resolution of <15,000 divisions, an single-point
adjustment is recommended. Only with display devices.
•The linearization may only be carried out by a specialist with profound
knowledge in the handling of balances.
•The test weights to be used must be adapted to the specifications of the
balance.
•Observe stable environmental conditions. A warm-up time for
stabilization is required.
•After linearization, calibration is recommended.

16 YKV-01-02-BA_IA-e-1911
10.1 Carrying out the linearization
For adjustment connect the weighing transmitter to the PC via the USB-interface as
described in chap. 7.4.
Linearization can be initiated using the commands JALZ, JALL as well as JAS in
the KCP protocol.
Sent to
balance Received from balance
Unload the weighing plate
Send the max. capacity of the scale JDC.
Balance sends a confirmation.
JDC 60 kg
JDC A
Send the readability of the scale JDD.
Balance sends a confirmation.
JDD 0.02 kg
JDD A
Send the max. overload of the scale JDO.
Balance sends a confirmation.
JDO 60 kg
JDO A
Optional: Send more linearization points
JDL x (x= 0 to 7)
JDL 0 30 kg
JDL 1 60 kg
JDL A
JDL A
Start linearization
JALZ
JALZ
JALZ A 60 kg
•Put on the indicated load.
•Continue linearization JALL
JALL
JALL B 30 kg
•Put on the indicated load.
•Continue linearization JALL
JALL
JALL A
Save linearization JAS
JAS
JAS A
The linearization is thus successfully completed. If errors occur, repeat linearization.

YKV-01-02-BA_IA-e-1911 17
10.2 Performance of a single point adjustment
For adjustment connect the weighing transmitter to the PC via the USB-interface as
described in chap. 7.4.
Adjustment can be initiated using the commands JAGZ, JAGL as well as JAS in the
KCP protocol.
Sent to
balance Answer of balance
Unload weighing plate
Sending the command to adjust the zero point
JAGZ.
The balance sends a confirmation JAGZ A
specifying the adjustment weight to be placed
upon
JAGZ
JAGZ A
15.00 kg
Loading the balance with the adjustment load
Send the command to import the adjustment
load JAGL.
The balance sends a confirmation JAGL A.
JAGL
JAGL A
Save the adjustment using the command JAS.
JAS
JAS A
Now the process of adjustment is successfully completed. Should errors occur,
repeat adjustment.
Observe the sequence:
•JZ – JL – JS
oBefore and after changing the weighing parameters, perform a
linearization, only then does the one-point adjustment work.

18 YKV-01-02-BA_IA-e-1911
11 Configuration using the KERN Balance Connection software
The BalanceConnection software (expert mode) includes a dialog for configuring the
device. You can download the BalanceConnection software from the following URL:
http://balanceconnection.kern-sohn.com/dl
You can find the manual at:
http://balanceconnection.kern-sohn.com/manual.pdf

YKV-01-02-BA_IA-e-1911 19
To configure the device with the BalanceConnection software, please follow the
instructions below (according to the instructions of the software):
1) Switch to expert mode.
2) Select the desired device from the list.
3) Connect the correct port to the selected device
4) Start the configuration dialog via the following button:
5) Complete the desired parameters and press the "Apply" button.

20 YKV-01-02-BA_IA-e-1911
12 Connection to your system
Using and configuration of the digital weighing transmitter are made by the KCP
communication log via the installed interfaces. KCP is described in the interface
specification KCP-ZB (online available). The following sections describe how to
connect the weighing platform to your system using your preferred communications
interface.
KCP (KERN Communications Protocol):
KCP is a standardized set of interface commands for KERN
balances and
other appliances, which allows all of the relevant parameters and functions to
be called up and controlled. KERN devices that have KCP can use it to
connect easily to computers, industrial control systems and other digital
systems.
12.1 USB
Connect the device to the host computer using the enclosed USB cable. It will be
recognized as a virtual COM port and will be assigned a corresponding numbered
connection.
Example (Microsoft Windows Device Manager):
In modern devices the USB driver required for the weighing transmitter has already
been pre-installed. If the system is not recognized automatically, you can obtain the
correct driver from the downloads area at http://www.kern-sohn.com.
12.2 Bluetooth
The weighing transmitter is optionally available with Bluetooth Low Energy (BLE)
and will then be visible to Bluetooth Master devices using its serial number.
To access this, please use an appropriate software programme / app which supports
Bluetooth Low Energy (BLE). Applications exclusively using Bluetooth Classic (BLC)
will not work.