– 19 –
Operating instructions
K-114 BT Interface converter
KELLER AG St. Gallerstrasse 119 CH-8404 Winterthur Tel. +41 (0)52 235 25 25 Fax +41 (0)52 235 25 00
KELLER GmbH Schwarzwaldstrasse 17 D-79798 Jestetten Tel. +49 (0)7745 9214 0 Fax +49 (0)7745 9214 50
www.keller-druck.com
05/2016
– 20 – – 21 –
Product description
The K-114 BT interface converter is recommended to communicate with digital products from KELLER, such as
pressure transmitters, manometers, or autonomous data loggers.
The interface converter supports two modes of operation:
– Communication via Bluetooth
– Communication via USB
The K-114 BT converter converts the serial signals of an RS485 interface into either Bluetooth or USB format. The
converter can be supplied with power autonomously, via the integrated battery, or via a USB interface. In this way,
the converter also supplies power to the connected devices. The battery can be charged via the USB interface.
The converter measures available supply voltage and power consumption of connected devices. These signals can
be evaluated and displayed using the supplied software. Bias or termination resistors may be activated if necessary
in order to improve communication via the RS485. The device is congured using the „K114_Cong“ software.
Bluetooth
General
The K-114 BT interface converter has a Bluetooth Classic 3.0 interface and a typical range of up to 10 m (device
class 2). The partner device (master/PC) must support Bluetooth Classic 2.1 or higher.
Function
When the device is switched on, the Bluetooth module is activated automatically and the interface converter is visible to other Bluetooth devices. The K-114 BT must be paired with the receiving device before a connection can be
established. Once a Bluetooth connection has been established, the interface converter can no longer be accessed
by other Bluetooth devices.
If you want to communicate via the USB interface of the converter, any existing Bluetooth connections must be
terminated. If Bluetooth communication is established, any existing USB connection is interrupted.
Contents
Product description 21
Bluetooth 21
General 21
Description 21
Pairing/connecting via Bluetooth for the rst time 22
USB 23
General 23
Communication 23
Battery/charging 24
Technical specications 25
RS485 interface 26
Product overview 27
Pin assignment for the converters and connections 27
LED display 28
Error analysis support 30
System requirements for K-114_Cong software 31
Factory conguration K-114 BT 31
Function overview 31
K-114_Cong software 32
Installation 32
Execution 32
Voltage and current measurement 33
Warnings and messages in the software 34
Error analysis/support 35
Recording K-114 BT measurements 36
RoHS 36
Disposal 36
Declaration of conformity 37
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● The virtual COM port numbers generated can be found by navigating to „Devices and Printers“ /
„K-114 BT SNxxxx“.
Right-click on the logo under „Properties“ / „Services“ to nd the generated COM port.
➞ This procedure need only be completed once. The generated virtual COM port remains available for further
sessions. In other words, as soon as this port is accessed, the BT connection is established automatically.
USB
General
In order to operate the interface converter via USB, the interface driver „Driver K-114“ must rst be installed on
the computer. The driver software is included on the KELLER software CD and can be downloaded for free from
www.keller-druck.com.
Communication
If the device is connected via Bluetooth, any communication via the USB interface is automatically interrupted. Once
the Bluetooth connection is deactivated, it is again possible to communicate via the USB interface.
Pairing/connecting via Bluetooth for the rst time
The computer must have an internal Bluetooth module or a Bluetooth USB dongle (Bluetooth Classic 2.1 or higher)
● To establish a Bluetooth connection with the K-114 BT, open the window „Devices and Printers“
in the Control Panel.
➞ Ensure that the K-114 BT converter is switched on (Power LED is illuminated).
●
Click on „Add a device“ to search for Bluetooth devices. This may take a few minutes. The K-114 BT converter
with the correct serial number should appear in the list.
➞ The computer may not nd the converter on the rst attempt. If this happens, please check that the converter is
switched on and is not too far away from the computer.
● Double-clicking on the converter symbol opens a new window with the automatically generated
coupling code. Click on „Next“ to couple the K-114 BT converter with the computer. A virtual COM port is now
created that can be used to communicate with the connected device.
– 24 – – 25 –
Technical specications
Property Parameter Condition Value Unit
Battery capacity
≥ 2300 mAh
Voltage 3,7 V
Type Li-ion
Bluetooth version 3.0 Classic
Range up to 10 m (class 2)
USB plug type Mini USB male
USB version 2.0
External power supply USB 5 ± 5% VDC
End consumer power supply U-Out 15 VDC ± 5%
End consumer power supply I-Out > 100 mA
Voltage measurement input U-In 0–12 VDC
Accuracy of voltage measurement input
U-In RI ≥ 100 kΩ 0.3 %FS
Resolution of voltage measurement input U-In < 0.004 V
Current measurement I-Out 0–150 mA
Accuracy of current measurement I-Out 0,3 %FS
Resolution of current measurement I-Out < 0.04 mA
RS485 conguration parameters Bus address 253
RS485 bus devices 1/4 unit load up to 128
RS485 transmission rate 9600 (default) / 115200 baud
RS485 cable length 0,75 m
Protection IP 40
Storage and operating temperature -10…+50 °C
Dimensions (H x W x D) 95 x 28 x 65 mm
Weight 150 g
Battery/charging
In order to protect the battery in the device, the user should switch off the converter after use. In battery operation,
the K-114 BT switches off automatically after communication has been inactive for 30 minutes.
The battery can be charged via the USB interface. Care must be taken to ensure that the battery can be charged
both via a normal USB port and a DCP (dedicated charging port) or USB adapter. This has the benet that instead
of being charged with 500 mA or 100 mA (USB port), the battery can be charged with up to 1 A (DCP), reducing
the charging time.
Charging and operating times (90%):
Table 1: Battery charging times
Table 2: Operating times with the battery
Charging time Value Unit
Charging time @ 100 mA (USB/low-powered port) ≈ 22,5 [h] hours
Charging time @ 500 mA (USB/high-powered port) ≈ 4,5 [h] hours
Charging time @ 1 A (DCP) ≈ 2,5 [h] hours
Operating time Value Unit
Operating time without load ≈ 3 [d] days
Operating time with „LEO 3“
≈ 2 [d] days
Operating time with a device with a power consumption of 20 mA ≈ 18 [h] hours
– 26 – – 27 –
Product overview
Product Connection Product number Plug compatible with
K-114 BT Screw terminals
(MC 1,5 / 6-ST-3,81)
309010.0119 all digital KELLER products with cable outlet,
series 3X, series 4X, DCX
K-114 BT A Fischer plug
(S 103 A054-130 [male])
309010.0101 DCX-16 /-22-25 PVDF / -38, LEO Record,
LEX 1, GSM-2
K-114 BT B Binder cable connector
(series 680 [female] 5-pole)
309010.0120 Series 30X / 40X, LEO 3, dV-22 PP, dV-2 PS*,
Castello*
*Requires additional cable option
Pin assignment for the converters and connections
+Vcc RS GND RS
485-A 485-B
U-IN
Erde /
Schirm
K-114 BT
Pluggable screw terminal
MC 1,5 / 6-ST-3,81
K-114 BT A
Fischer connector
S 103 A054-130 (male)
K-114 BT B
Binder cable connector
Series 680 (female) 5-pole
3: +Vcc
4: RS485-A
5: RS485-B
2: +U-IN
1: GND
2: +U-IN
3: +Vcc
4: RS485-A
1: GND
5: RS485-B
Earth/shield
Earth/shield
RS485 interface
For Bluetooth communication and the internal controller (bus address: 253), the converter supports the baud rate of
9600 baud (default) or 115200 baud, 8 data bits, 1 stop bit and no parity. This transmission speed must be congured on the master (PC) and on the K-114 BT.
Property Bluetooth / RS485 USB / internal controller (bus address 253) congurable
Baud rate 9600 (default) / 115200 baud 9600 (default) / 115200 baud
Yes
Data bits 8 8 No
Stop bits 1 1 No
Parity no parity no parity No
The desired baud rate can be congured using the „K114Cong“ software.
Further connection parameters are possible for communicating via the USB interface with the RS485.
Property USB / RS485 congurable
Baud rate freely selectable, up to 250 kbps Yes
Data bits 7,8 Yes
Stop bits 1,2 Yes
Parity Odd, even, mark, space, no parity Yes
The K-114 BT converter communicates with the connected devices via an RS485 (half-duplex mode) bus. The
internal battery supplies power to the devices connected to the K-114 BT. KELLER products operate with fail-safe
drivers, which output a logical high at the receiver outlet in the event of short-circuited, open or non-terminated
inputs in order to avoid invalid signal states. KELLER products also feature slew rate limitation, which limits the edge
steepness of the driver output. This prevents high-frequency emissions from devices and data lines. A maximum of
128 bus devices can be connected to this RS485 master.
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Bluetooth
Indicates which communication mode the device is in
Bluetooth ready (communication via Bluetooth possible)
Bluetooth connected (communication via USB is not currently possible)
Bluetooth off/error
RxTx/baud
Displays the status of the reception and transmission line (RxTx) with the set baud rate
Is transmitting and/or receiving data via RS485 bus at 9600 baud
Is transmitting and/or receiving data via RS485 bus at 115200 baud
Echo off
Displays the status of the function „Echo OFF“
Echo activated
Echo deactivated
Bias ON
Displays the status of the function „Bias ON“
Bias resistors (560 Ω) activated for RS485A and RS485B
No bias resistors activated
Termination ON
Displays the status of the function „Termination ON“
Termination resistor 120 Ω activated
Termination resistor not activated
Caution:In battery-operated end devices, this function can lead to errors due to the increased power load.
➞ Recommendation: do not activate this function
300 ms
LED display
keller-druck.com
RxTx /Baud
Echo OFF
Bias ON
Termination ON
EARTH
+V IN
RS485B
GND
RS485A
+VCC
K-114 BT Bluetooth to RS485 Converter
Power
Battery Bluetooth
Power
Displays the power status of the K-114 BT
Device not recognised by PC (K-114 BT interface driver not installed), error
Note: Upon initial installation, the LED glows red for a few seconds until the converter has been registered on
the PC.
K-114 BT is connected via USB and is being powered/charged
K-114 BT is being powered by the internal battery
K-114 BT is in standby mode (only possible in USB operation)
K-114 BT is switched off
Battery
Indicates the battery status
Battery capacity below 20%
Battery capacity below 10% or charging error
Battery charging
Battery not charging (full)
1 sec
2 sec
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System requirements for software K-114_Cong
Processor min. Pentium 75 MHz
Screen resolution min. 1024 x 768
Memory min. 16 MB RAM
Hard disk space min. 20 MB recommended
Factory conguration K-114 BT
These are the recommended settings for fault-free operation of KELLER products.
Converter bus address 253 (cannot be changed)
Baud rate 9600 baud
Echo off off
Bias network off
Termination off
Internet connection recommended
(for support)
Operating system Windows XP, 7, 8, 10
Function overview
Bluetooth
USB
RS485
Echo
8
Akkumulator
Bias
Termination
Bias
Echo OFF
The data sent by the PC (Tx) is not sent back.
Bias network
Prevents undened bus levels in the event of inactive line
drivers.
Termination
Prevents reections on the signal lines.
Error analysis support
red off
grün
green
grün
flashing
POWER LED
➞ Check/install K-114 BT
software driver
➞ Internal error
Device is out of operation (it
may have switched itself off)
➞ Press the Power Button
to turn the device on
Bluetooth LED
off shining with a steady light
RxTx / Baud
LED
off shining with a steady light
Bluetooth not initialised
(cannot connect via BT)
➞ Restart the K-114 BT
(switch off and on again)
Device is in USB mode
(no BT connection)
➞ Connect device to PC
➞
Incorrect COM port
number selected
(change selection)
– Check baud rate settings / device addresses
– Reset the K-114 BT to its factory settings
– Request support
COM port already in use
➞
Incorrect COM port number
selected (change selection)
➞ Other software is using
the COM port
Close all software
programs
➞ Check wiring on end
consumer(s)
Bus error
➞ Check wiring on end
consumer(s)
➞ Remove all devices
connected to the
K-114 BT
➞ Check the voltage level
of the RS485 and activate
the Termination or Bias
function if necessary
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Voltage and current measurement
The latest conguration and measurements are continuously displayed and updated.
The RS485 connection to a connected device can be checked by pressing the button "Test communication".
No. Symbol Function Description
1 I-OUT Supply current to external consumers
Range 0…150 mA
2 U-BAT Voltage of the internal battery
3,1…4,2 V
3 U-OUT Supply voltage to external consumers
~ 15 V
4 U-IN Voltage input Range 0…12 VDC
Software K-114_Cong
The software K-114_Cong is a conguration and diagnostic tool for the converter K-114 BT. It can be used to
congure the baud rate of the converter, as well as to select the echo function and to switch on the bias resistors or
the termination resistor. If an end consumer is connected, a full diagnostic test can be run to determine the power
consumption and applied signal voltage and a communication test can be performed.
Installation
First, install the K-114 BT driver on your computer, then launch the K-114_Cong software. (Software CD included
in scope of delivery or available as a free download from www.keller-druck.com)
Execution
Launch the program "K-114_Cong" and select the corresponding COM port. Then navigate to the K-114 conguration view (top-right of the tab).
– 34 – – 35 –
The function „Download remote maintenance software“ automatically begins the download of a remote desktop
program. Launch it once it has downloaded. After sending a connection code, our technical support team will log
into your computer and provide help directly on your screen.
Error analysis/support
If problems arise when using the converter, please refer to the chapter „Error analysis support“ for help. If the
problem persists after you have followed the instructions in this chapter, please contact www.keller-druck.com
Warnings and messages in the software
The following warnings and messages in the „K-114 Cong“ software notify the user that an invalid state has arisen.
The message is displayed in the top line of the window „K-114 Conguration“.
Battery almost empty
If the charging capacity of the battery drops below 20%, the user is notied that the battery is low on power.
Battery low, connect charger
This nal warning appears when the capacity drops below 10% and instructs the user one last time to charge the
device before it switches off automatically.
U-OUT outside of range
This message appears if the voltage U-OUT is less than 14,25 VDC. As an initial measure, remove the external
devices until the error disappears.
Short circuit/overload at output
This message appears if the output current I-OUT exceeds 125 mA. This indicates that the load is too high: please
check the power supply connection. As an initial measure, remove the external devices until the error disappears.
U-IN outside of measurement range
The measurement range for U-IN is 0…12 VDC. The message informs the user that the upper limit of the measurement range that can be represented (> 15VDC) has been reached. The measurement voltage U-IN actually applied
may therefore be greater than the displayed value.
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Recording K-114 BT measurements
The measurements I-OUT, U-IN, U-OUT and U-BAT can be recorded and stored via the software ControlCenterSeries30 (CCS30). Read the CCS30 manual to nd out more about this.
In order to display the data for the K-114 controller using the software, you must enter bus address 253 in CCS30
and start the search for the device. You can display and store measurements via the „New measurement“ function.
RoHS
This product complies with EC Directive 2002/95/EC on the restriction of the use of certain
hazardous substances in electrical and electronic equipment.
Disposal
The product must not be disposed of with ordinary domestic waste at the end of its service
life. To prevent any damage to health or the environment caused by improper disposal, this
product must be separated from other waste and properly recycled in order to ensure that the
raw materials are processed sustainably.
Konformitätserklärung
Für das folgende Erzeugnis wird hiermit
bestätigt,
Konverter K-114 BT
dass es den wesentlichen Schutzanforderungen entspricht, die in der Richtlinie des Rates zur Angleichung der
Rechtsvorschriften der Mitgliedstaaten
über die elektromagnetische Verträglichkeit (2004/108/EG) festgelegt sind.
Diese Erklärung gilt für Produkte dieser
Serie, die mit dem CE-Zeichen versehen und die Bestandteil dieser Erklärung sind.
Zur Beurteilung der Erzeugnisse hinsichtlich elektromagnetischer Verträg-
lichkeit wurde folgende Normen heran-
gezogen.
Jestetten, 26. Mai | May | mai 2016
Hannes W. Keller – Geschäftsführender Inhaber | Managing Owner | Président Directeur Général
mit rechtsgültiger Unterschrift | with legally effective signature | dûment autorisé à signer
Declaration of Conformity
Herewith we declare, that the following
products or product range
Converter K-114 BT
meet the basic requirements for the
electromagnetic compatibility, which
are established in the directive of the
European Community (2004/108/EC).
This declaration is valid for products of
this Series marked with the CE sign and
which are part of this declaration.
As criteria for the electromagnetic compatibility, the following norm is applied:
Déclaration de Conformité
Nous attestons que les produits ou
gammes de produits :
Convertisseurs K-114 BT
répondent aux exigences de base en
matière de compatibilité électromagnétique prévues par la directive de la
Communauté Européenne (2004/108/
CE).
La présente déclaration est valable
pour les produits de cette série, marqués avec le sigle CE et faisant partie
intégrante de la présente déclaration.
La norme appliquée pour évaluer la
compatibilité électromagnétique desdits
instruments est la suivante :
EN 61326-1:2013
Diese Erklärung wird verantwortlich für
den Hersteller:
This declaration is given for the manufacturer
La présente déclaration est fournie
pour le fabricant
KELLER AG für Druckmesstechnik, St. Gallerstrasse 119, CH-8404 Winterthur
abgegeben durch die
in full responsibility by par
KELLER GmbH, Schwarzwaldstrasse 17, D-79798 Jestetten
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