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Operating and Installation
Instructions - Display Unit
KERN KXS-TM / KXG-TM
Type KXS-TNM / KXG-TNM
Version 3.0

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Summary of Contents for KERN KXS-TM

  • Page 1 Operating and Installation Instructions - Display Unit KERN KXS-TM / KXG-TM Type KXS-TNM / KXG-TNM Version 3.0...
  • Page 2: Table Of Contents

    KERN KXS-TM / KXG-TM Version 3.0 2017-05 Operating and installation instructions Display unit Contents Technical data ....................4 Dimensions ..........................5 Connections ..........................6 Declaration of conformity ................7 Appliance overview ..................8 Keyboard overview ........................9 Overview of display ........................11 Overview display icons ......................
  • Page 3: Technical Data

    Basic Operation ................... 24 Start-up ............................. 24 Switching Off ..........................24 Zeroing ............................. 24 Simple weighing ........................24 Switch-over weighing unit (only not verifiable weighing systems) ........... 25 Weighing with tare ........................26 9.6.1 Taring............................26 9.6.2 Numerical input of tare (PRE-TARE) ..................26 Display gross / net ........................
  • Page 4: Dimensions

    1 Technical data KERN (Type) KXS-TNM KXG-TNM Trademark KXS-TM KXG-TM Display 6-digit Single (Max.) 10,000 e Resolution verifiable Dual (Max.) 5,000 e Resolution non-verifiable 30,000 d Verification class Weighing ranges Weighing units g, kg Divisions 1,2,5,…10, n Display LCD 55 mm digits with back lighting DMS weighing cells Max.
  • Page 5 1.1 Dimensions  KXS-TNM  KXG-TNM KXS_KXG-TM-BA_IA-e-1730...
  • Page 6: Connections

    1.2 Connections  KXS-TNM Standard Factory option Electric Supply Electric Supply Load cell Foot switch or RS 485 RS232 Pressure compensation membrane RS232 Load cell  KXG-TNM Standard Factory option RS232 Foot switch Load cell RS232 Electric Supply RS485 Load cell Electric Supply KXS_KXG-TM-BA_IA-e-1730...
  • Page 7: Appliance Overview

    3 Appliance overview Exemplified in image KXS-TNM 1. Weight display 2. Wireless 3. Status of rechargeable battery 4. Locking screw 5. Keyboard 6. Support base/Wall fixture KXS_KXG-TM-BA_IA-e-1730...
  • Page 8: Keyboard Overview

    3.1 Keyboard overview Button Function Designation • Turn on/off ON/OFF button • Zeroing ZERO key Navigation button • Confirm entry • Taring TARE button • At numeric input increase flashing digit Navigation button  • Scroll forward in menu • Display sum total MR key Navigation button ...
  • Page 9 • Switch over gross weight  net weight BG/ NET key • Switch-over weighing unit • Back to menu/weighing mode • Call up mean value function • Call up weighing with tolerance range • Delete total added memory • To show an additional decimal place, press and hold the M+ key for approx.
  • Page 10: Overview Of Display

    3.2 Overview of display Indicators for weighing with tolerance range HI / OK / LO Current selected unit of weight „kilograms“ Current selected unit of weight „pound“ Parts counting Percent weighing Zero indicator The displayed weighing value is a net weighing value Status of rechargeable battery Indicator [] next to symbol displays: that the weight value is stable...
  • Page 11: Overview Display Icons

    3.3 Overview display icons KXS_KXG-TM-BA_IA-e-1730...
  • Page 12: Basic Information (General)

    The display unit 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 •...
  • Page 13: Monitoring Of Test Resources

    In KERN’s accredited DKD calibration laboratory test weights and display units may be calibrated (return to the national standard) fast and at moderate cost.
  • Page 14: Unpacking And Placing

    7 Unpacking and placing 7.1 Installation Site, Location of Use The display units are designed in a way that reliable weighing results are achieved in common conditions of use. Precise and fast work is achieved by selecting the right place for your display unit and your weighing plate.
  • Page 15: Transport Securing

    7.4 Transport Securing Please note: if the display unit is used together with platform with transportation lock, this transportation lock must be released prior to use. Remove the transportation safety device at the four marked positions: Transport Securing 7.5 Placing Mount the display unit in a way that facilitates operation and where it is easy to see.
  • Page 16: Adjustment

    7.7 Adjustment As the acceleration value due to gravity is not the same at every location on earth, each display unit with connected weighing plate 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).
  • Page 17  For adjustment press to select setting < noLin> and confirm by  Ensure that there are no objects on the weighing pan. Wait for stability display, then press The currently set adjustment weight will be displayed.  Either apply the displayed adjustment weight or make changes with the help of the navigation keys (see chap.
  • Page 18: Not Verifiable Weighing Systems

    7.7.2 Not verifiable weighing systems  For invoking menu item <P6ZCL> see chap. 11.1.  Ensure that there are no objects on the weighing pan before pressing  Wait for stability display, then press The currently set adjustment weight will be displayed. ...
  • Page 19: Linearization

    7.8 Linearisation Linearity shows the greatest deviation of a weight display on the scale to the value of the respective test weight according to plus and minus over the entire weighing range. If linearity deviation is discovered during a monitoring of test resources, you can improve this by means of linearization.
  • Page 20  For linearization press to select setting < LinEr>, to confirm, press  Ensure that there are no objects on the weighing pan. Wait for stability display, then press  When “Ld 1“ is displayed, put the first adjustment weight (1/3 max) carefully in the centre of the weighing platform.
  • Page 21: Verification

    7.9 Verification General introduction: According to EU directive 2009/23/EC balances must be officially verified if they are used as follows (legally controlled area): a) For commercial transactions if the price of goods is determined by weighing. b) For the production of medicines in pharmacies as well as for analyses in the medical and pharmaceutical laboratory.
  • Page 22: Kxs_Kxg-Tm-Ba_Ia-E

    Notes on verified weighing systems In verified weighing systems the menu items <P1rEF>, <P3CAL>, <P5unt>, • <P6ZCL> and <P7rSt> will be locked. To undo the lock, you have to break the seal and open the casing. On the board move the adjusting switch SWA1 to position „ADJ”. LOCK SWA1 Attention:...
  • Page 23: Basic Operation

    8 Basic Operation 8.1 Start-up  Press on/ off key, the equipment completes a self check. As soon as the weight display appears, the instrument will be ready to weigh. 8.2 Switching Off  Press the on/ off key approx. 3 seconds, the display will turn off. 8.3 Zeroing Resetting to zero corrects the influence of light soiling on the weighing plate.
  • Page 24: Switch-Over Weighing Unit (Only Not Verifiable Weighing Systems)

    8.5 Switch-over weighing unit (only not verifiable weighing systems) How to enable weighing units:  Call-up menu item P5 Unt, see chap. 11  Press , the first weighing unit will be shown.  Press , the current setting will be displayed. ...
  • Page 25: Weighing With Tare

    8.6 Weighing with tare 8.6.1 Taring  Deposit weighing container. After successful stability check press the TARE button. Zero display and indicator appear. NE T The weight of the container is now internally saved.  Weigh the material, the net weight will be indicated. ...
  • Page 26: Display Gross / Net

     Enter known tare weight (e.g. 2 kg) by operating the navigation keys and confirm by pressing the zero key. Numerical input, see chap. 3.1. The entered weight will be stored as tare weight and displayed with negative sign. The indicator  over PRE-TARE will appear. ...
  • Page 27: General Functions

    9 General functions 9.1 Automatic shutdown function The unit is automatically switched off within the preset time when the display unit or the weighing bridge are not operated.  Keep pressed in weighing mode for approx. 3 seconds until “setbl“ is displayed.
  • Page 28: Display Background Illumination

    9.2 Display background illumination  Keep pressed in weighing mode for approx. 3 seconds until “setbl“ is displayed.  Press again, the current setting will be displayed.  Press to select the desired setting. Continuous background lighting bl on Background illumination off bl off Automatic background illumination on when weighing pate is loaded or key pressed.
  • Page 29: Operation Modes

    10 Operation Modes 10.1 Parts counting Before the balance can count parts, it must know the average part weight (i.e. reference). Proceed by putting on a certain number of the parts to be counted. The balance determines the total weight and divides it by the number of parts, the so- called reference quantity.
  • Page 30 Automatic reference optimization • Menu setting: „P4 OTH“  „AVErG“  „on““, see chap. 11 In order to improve the counting exactness, the reference can be optimised by adding more pieces. At every reference optimisation, the reference weight is calculated anew. As the additional pieces increase the base for the calculation, the reference also becomes more exact.
  • Page 31: Manual Totalizing

    10.2 Manual totalizing With this function the individual weighing values are added into the summation memory by pressing and edited, when an optional printer is connected. • Menu setting: „P2 COM“  „MODE“  „PR2““, see chap. 11 • The totalizing function is not active when the weight is under 20d. Add up: ...
  • Page 32  Place goods to be weighed, e.g. 3 kg. Wait for stability, then press added. The weight value is added to the summation memory and edited on a connected optional printer. Number of weighings, followed by the total weight will be displayed for 2 sec. Then the current weight value appears, the indicator ...
  • Page 33 Delete weighing data:  Press at the same time The data in the summation memory are deleted. Sample logs: Menu setting Menu setting “P2 COM“  “Lab 2“ / “Prt 1“ „P2 COM“  „Lab 0“ / “Prt 0“ *************** First weighing *************** No.:...
  • Page 34: Automatic Adding-Up

    10.3 Automatic adding-up With this function the individual weighing values are automatically added into the summation memory without pressing a key when the balance is unloaded and edited, when an optional printer is connected. • Menu setting: „P2 COM  „MODE“  „AUTO““, see chap. 11 Add up: ...
  • Page 35: Data-Hold Functions

    10.4 Data-Hold functions • Menu setting: „P4 OTH  „ANM“  „ON““, see chap. 11  Press simultaneously when the function is enabled. The current setting will be displayed.  Press to select the desired setting. Function switched off (factory setting) hold 0 Peak value function hold 1...
  • Page 36: Animal Weighing Function

    10.4.1 Animal weighing function With this function jerky balancing goods can be weighed, e.g. living animals. The scale calculates an average value by the number of adjusted weighings and displays this until the scale is cleared (display < 10d). Settings: ...
  • Page 37 Animal weighing: When the animal weighing function is activated horizontal segments appear at the zero display.  Place goods to be weighed on the balance. The scale calculates the average value by the number of adjusted weight readings. The indicator  appears above HOLD.
  • Page 38: Weighing With Tolerance Range

    10.5 Weighing with tolerance range You can set an upper or lower limit when weighing with tolerance range and thus ensure that the weighed load remains exactly within the set limits. During tolerance tests such as dosing, portioning and sorting the unit will indicate exceeded or undershot limits by emitting an optical or acoustic signal.
  • Page 39: Tolerance Check For Target Weight

    10.5.1 Tolerance check for target weight Settings:  In weighing mode, press the BG- and the PRINT-key simultaneously.  The screen <SET h> used to enter the upper limit will be displayed. Press the ZERO key, the current setting appears. ...
  • Page 40  To enter the lower limit, e. g. 1000 Kg, press the navigation keys (See chap. 3.1); the currently enabled digit will be flashing.  Confirm entry by ZERO button.  Press the TARE-key repeatedly until is displayed.  Press the ZERO key, the current setting for the acoustic signal will be shown. ...
  • Page 41 Weighing with tolerance range  Tare when using a weighing container.  Put on goods to be weighed, tolerance control is started. The indicators show whether the load is within the two set tolerance limits. Load below specified Load within specified Load exceeds specified tolerance tolerance...
  • Page 42: Tolerance Check For Target Quantity

    10.5.2 Tolerance check for target quantity Settings:  In weighing mode, press the BG and the PRINT key simultaneously.  Press the TARE key repeatedly until the screen to enter the upper limit value is displayed.  Press the ZERO key, current setting appears. ...
  • Page 43  Press the ZERO key, the current setting appears.  To enter the lower limit, e. g. 75 items, press the navigation buttons (see chap. 3.1); the currently enabled digit will be flashing.  Confirm entry by ZERO button.  Press the TARE-key repeatedly until is displayed.
  • Page 44 Counting to target quantity  Determine the item weight, see chap. 10.1  Tare when using a weighing container.  Put on goods to be weighed, tolerance control is started. The indicators show whether the load is within the two set tolerance limits. Weighed load below Weighed load within Weighed load exceeds...
  • Page 45: Menu

    11 Menu Navigation in the menu: Call up menu  Switch-on balance and during the selftest press <Pn> will be shown.  Press subsequently, the first menu block „PO CHK“ will be displayed. Select menu block  With help of , the individual menu block can be selected one after the other.
  • Page 46: Overview Non-Verified Weighing Systems (Adjustment Switch In Position )

    11.1 Overview non-verified weighing systems (Adjustment switch in position <Adj>, see chap. 7.9) Menu block Menu item Available settings / explanation Main menu Submenu P0 ChK SEt h Upper limit value „Tolerance check weighing“, input see chap. 10.5.1 Weighing with SEt L Lower limit value „Tolerance check weighing“, input see tolerance range...
  • Page 47 SPEEd Reaction speed, selectable 0, 1, 2, 3, 4, 5*, 6, 7, 8, 9 < 0 >: Sensitive/fast  < 9 >: Insensitive / slow P2 CoM ModE One output for stable weighing value St1* Continuous data output of stable weighing Interface values parameter...
  • Page 48 P3 CAL dECi Position of the decimal dot MuLt Setting balance type, capacity (Max) and readability (d) Configuration SinGLE Single-range balance data div 1 Readability CAP 1 Capacity Exit menu Either import weighing scale type settings by pressing the Zero-key cancel by pressing the ESC-key duAL Dual range balance...
  • Page 49 Enable units accessible via the BG-key P5 Unt off* Switch-over off* weighing unit, see chap. off* Not documented viSS P6 ZCL For external adjustment, see chap. 7.7.2 P7 rst to reset balance settings to factory default. Factory settings are marked by *. KXS_KXG-TM-BA_IA-e-1730...
  • Page 50: Overview Verified Weighing Systems (Adjustment Switch In Position )

    11.2 Overview verified weighing systems (Adjustment switch in position <Lock>, see chap. 7.9) Menu block Menu item Available settings / explanation Main menu Submenu P0 ChK SEt h Upper limit value „Tolerance check weighing“, input see chap. 10.5.1 Weighing with sEt L Lower limit value „Tolerance check weighing“, input see tolerance range...
  • Page 51: Rs 485 - Pin Allocation

    Animal weighing (see chap.10.4), selectable on / off* P4 oth AVErG Automatic reference optimisation (see chap.10.1), selectable on / off* General parameters When this function is enabled the device will automatically redefine the single weight if the number of parts has increased. rtAr Tare range Multi-tare selectable on / off*...
  • Page 52: Rs 232C

    • Use a suitable cable to connect the display unit to the interface of the printer. Faultless operation requires an adequate KERN interface cable. • Communication parameters (baud rate, bits and parity) of display unit and printer must match.
  • Page 53: Printer Operation / Sample Logs

    13.2 Printer operation / sample logs • Counting **************************** **************************** • Totalization Menu setting P2 Com  Mode  Pr2 or Auto KXS_KXG-TM-BA_IA-e-1730...
  • Page 54: Output Log (Continuous Output)

    13.3 Output log (continuous output) • Weighing Symbols: Stable value Instable value Gross weight Net weight Tare weight Number weighing processes Total of all individual weighings <lf> Space line Quantity 13.4 Remote control instructions Function Sample logs mand Stable weighing value for the weight is sent ST,G,+ 1.000KG via the RS232 interface...
  • Page 55: Bluetooth (Factory Option)

    14 Bluetooth (Factory option) For menu settings, see chapter 11: „P2 COM“  „BAUD“  „9600“ „P2 COM“  „Pr“  „8n1“  Click in the task border with activated Bluetooth.  Click on „Add device“.  KXS_KXG-TM-BA_IA-e-1730...
  • Page 56  Click on "Enter pairing code of the device"   Enter code 111111 KXS_KXG-TM-BA_IA-e-1730...
  • Page 57  Click on „Next“  Click on „Close“ KXS_KXG-TM-BA_IA-e-1730...
  • Page 58  Display Bluetooth network appliance  Double click KXS_KXG-TM-BA_IA-e-1730...
  • Page 59: Installing Display Unit / Weighing Bridge

    15 Installing display unit / weighing bridge Installation / configuration of a weighing system must be carried out by a well acquainted specialist with the workings of weighing balances. 15.1 Technical data Supply voltage 5 V/150mA Max. signal voltage 0-10 mV Zeroing range 0-2 mV Sensitivity...
  • Page 60: How To Connect The Platform

    15.3 How to connect the platform  Disconnect the display unit from the power supply.  Solder the individual leads of the load cell cable onto the circuit board, see diagrams below. 4-PIN 6-PIN KXS_KXG-TM-BA_IA-e-1730...
  • Page 61: Configure Display Unit

    15.4 Configure display unit Notes on verified weighing systems In verified weighing systems menu item <P3CAL> will be locked. To undo the lock, you have to break the seal and open the casing. On the circuit board move the adjusting switch SWA1 to position „ADJ”. LOCK SWA1 Attention:...
  • Page 62: Configuration Example Single Range Scale

    4. Gravitation constant at place of installation 5. Gravitation constant applied during verification  Press repeatedly to exit menu. 15.4.1 Configuration example single range scale  Invoke menu item<mult> (see chap. 15.4) and press confirm. The currently set balance type is displayed. ...
  • Page 63: Configuration Example Dual Range Scale

    15.4.2 Configuration example dual range scale  Invoke menu item<mult> (see chap. 15.4) and press confirm. The currently set balance type is displayed.  Press to select desired type duAL = dual range scale  Press , the display used to enter readability/verification value for first weighing range will appear.
  • Page 64  Press to enter the next menu item for readability/verification value for second weighing range.  Press , the current setting will be displayed.  Select desired setting with and acknowledge by  Press to select the next menu item used to enter the capacity for the second weighing range.
  • Page 65  Do not use metal brushes or cleaning sponges of steel wool, as this causes superficial corrosion. 16.2 Servicing, maintenance  The appliance may only be opened by trained service technicians who are authorized by KERN.  Ensure that the balance is regularly calibrated, see chap. Monitoring of test resources. 16.3 Disposal ...
  • Page 66 17 Instant help In case of an error in the program process, briefly turn off the display unit and disconnect from power supply. The weighing process must then be restarted from the beginning. Help: Fault Possible cause The displayed weight does •...

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