KERN KFC-TM Installation Instructions Manual
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- Instruction manual (59 pages) ,
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- Operating and installation instructions (190 pages)
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Summary of Contents for KERN KFC-TM
- Page 1 KERN & Sohn GmbH www.kern-sohn.com Ziegelei 1 +0049-[0]7433-9933-0 72336 Balingen-Frommern +0049-[0]7433-9933-149 Germany info@kern-sohn.com Installation instructions Display unit KERN KFC-TM Type TKFC-TM-C Version 1.0 2024-07 TKFC-TM-C-IA-e-2410...
- Page 2 KERN KFC-TM Version 1.0 2024-07 Installation instructions Display unit Contents Introduction ..................5 General notes on these instructions ............. 5 Presentation conventions ................5 1.2.1 Representations of the text ..............5 1.2.2 Representations of the device operation ..........6 1.2.3 Binding information ................
- Page 3 Scope of delivery ..................14 Prepare weighing platform or weighing platform ........15 Open display unit..................15 Connect the indicator to a weighing platform or weighing bridge ....16 Close display unit ..................20 Install optional battery ................20 Optional installation of the alibi memory ............. 22 Mains operation ..................
- Page 4 6.8.2 Display software version ..............50 6.8.3 Display software version for calibratable devices ........ 51 6.8.4 Display the value of the A/D converter ..........51 Restore factory settings ................53 Menu ....................54 Waste disposal ................57 Errors and faults ................59 Error messages ..................
- Page 5 Introduction General notes on these instructions INFORMATION Read this document completely before installing and configuring the de- vice. Only use the device in accordance with the specifications described in this document. This serves to protect against personal injury and dam- age to property.
- Page 6 1.2.2 Representations of the device operation Symbol Meaning Short keystroke Long button press / press and hold button Display on the scales (example illustration) 1.2.3 Binding information Important and binding information describes facts that must be emphasised, which you must take note of and which are always valid (e.g. legal provisions or terms and con- ditions).
- Page 7 Optimum interaction between the components of the weighing system is achieved with a weighing platform or weighing bridge from KERN. Information on weighing platforms and weighing platforms as well as al- ready configured weighing systems from KERN can be found online at www.kern-sohn.com Technical data...
- Page 8 Overview of the device Keyboard This document only describes the button functions relevant for configura- tion. Further functions can be found in the operating instructions for the display unit. Button Designation Function Numerical input ➢ Switch on ON/OFF ➢ Switch off (long press) ➢...
- Page 9 General safety information INFORMATION Read this document completely before installing the device. Only use the device in accordance with the specifications described in this doc- ument. This serves to protect against personal injury and damage to property. Control on takeover Please check the packaging immediately upon receipt and the appliance for any visible external damage when unpacking.
- Page 10 Warning of material damage: NOTE Measures to prevent damage to property Symbols in warning notices: Symbol Meaning Warning signs warn you of dangers that may lead to personal injury. Warning signs The symbol indicates the type of hazard. Indicates general hazards or a danger point Warning of electrical voltage Warning of flammable substances Warning of explosive substances...
- Page 11 • Only use the country-specific mains plug for the country in which you are using the appliance. • Only use original KERN power supply units. The use of other makes requires the consent of KERN. • Ensure that the mains plug is accessible at all times.
- Page 12 • Check the mains cable and mains plug for damage before each use. Rechargeable batteries and batteries General: Improper use of rechargeable or non-rechargeable batteries can cause them to catch fire, explode, emit toxic vapours or release corrosive liquids. The following therefore applies to rechargeable and non-rechargeable batteries: •...
- Page 13 If battery fluid escapes: Liquid can escape from damaged rechargeable batteries and batteries. Please note the following: • Avoid contact between leaking liquid and your skin, eyes or clothing. • Wear protective clothing/equipment if you want to touch and remove a defective battery.
- Page 14 Assembly, installation and commissioning INFORMATION • Always follow the instructions in this manual before starting work. • The illustrations are examples that may differ from the actual product (e.g. positions of the components). ⚠ DANGER Electric shock due to contact with live components Electric shock leads to serious injury or death ...
- Page 15 Prepare weighing platform or weighing platform The preparation of the weighing platform or weighing bridge, such as unpacking, re- moving transport locks and levelling, is described in the respective installation instruc- tions. Carry out the steps described there. Open display unit 1.
- Page 16 Connect the indicator to a weighing platform or weighing bridge Strip the cable: 1. Strip the cable according to the following illustration with the following dimen- sions. A = approx. 30 mm B = approx. 5 mm Insert the cable into the display unit: 2.
- Page 17 4. Feed the cable through the previously opened cable gland. Connect the cable to the circuit board: 5. Connect the wires of the cable to the display unit according to the labelling on the load cell and the circuit board. TKFC-TM-C-IA-e-2410...
- Page 18 Note: The evaluation unit is preconfigured for 4-wire. When connecting a 6-wire load cell, the bridges must be cut. 6. Attach the ferrite core to the cable. 7. Secure the cable to the circuit board with cable ties so that it and the ferrite core cannot slip when closing the display unit.
- Page 19 Close the screw connection: NOTE Make sure that the load cell cable inside the housing is of a suitable length and cannot be pinched or crushed when closing the housing. Tighten the PG screw to the tightening torque speci- fied below so that it cannot unscrew again due to vi- brations.
- Page 20 Close display unit NOTE Make sure that you do not damage any cables (e.g. by tearing them off or pinching them). Make sure that any existing seals are in their intended place. 1. Carefully fold both halves of the display unit together. 2.
- Page 21 2. Connect the battery and then insert it with the foam insert (for a tight fit). 3. Reattach the cover If you want to configure a calibrated device, do not close the battery com- partment until you have completed the configuration. The adjustment switch must be pressed frequently to configure a cali- brated device.
- Page 22 • The date and time settings can be found in the operating instructions for the display unit. Mains operation INFORMATION Only use original KERN power supply units ⚠ WARNING Risk of electric shock and fire due to defective power supply units or short circuit Electric shock and fire can lead to serious injuries ...
- Page 23 Installing the mains plug: Push in the power supply unit at the snap lock (1). Turn the country-specific mains plug (2) to and insert it into the recess. Turn the inserted mains plug to until you hear a click and the mains plug engages. To remove the mains plug, press in the snap lock (1) and turn the mains plug to Then disconnect the mains plug.
- Page 24 Configuration INFORMATION • Always follow the instructions in this manual before starting work. • The illustrations are examples that may differ from the actual product (e.g. positions of the components). To configure the indicator in the service menu, the following configuration data of the weighing system must be known: •...
- Page 25 Switch off Switch off the scale in weighing mode: Keep [ON/OFF] pressed The scales switch off Switch off the scale in the service menu (example starting from menu level 3): Example: Current param- eter setting in third menu ...
- Page 26 Open service menu 6.3.1 Open service menu in non-calibratable mode The menu can no longer be opened in this way once the calibration capa- bility has been activated. Switch on the device Press and hold [ON/OFF] and [TARE] at the same time while the self-test is being carried out ...
- Page 27 6.3.2 Open the service menu in calibratable mode INFORMATION Please note that to configure a calibrated device, the calibration seal must be destroyed and the scale must be recalibrated and sealed by an author- ised body (e.g. when converting to another platform). On initial delivery, the evaluation device is not calibrated and not sealed.
- Page 28 Configure weighing parameters All weighing parameters can be configured in the <PARAMS> menu. 6.4.1 Activate calibration capability The menu item for activating the calibration capability is only visible in the calibratable mode of the service menu (press the calibration switch, see Chap.
- Page 29 6.4.2 Activate increased resolution for calibratable devices • The increased resolution makes it easier to carry out the conformity assessment by displaying an additional decimal place. • The query for increased resolution only appears if the device has been set to calibratable and the adjustment switch is pressed again after a restart (press the adjustment switch, see Chap.
- Page 30 6.4.3 Setting weighing ranges Navigate to <ranges> with [ ] or [] Press [➔] Select the number of weighing ranges: 1 Weighing range 2 weighing ranges Press [➔ ] to confirm the setting When selecting 2 weighing ranges: ...
- Page 31 Use [ ] or [ ] to select the desired weighing unit Press [➔ ] to confirm the setting 6.4.5 Set decimal places Navigate to <deci> with [ ] or [ ] Press [➔] Use [ ] or [ ] to select the number of decimal places ...
- Page 32 6.4.6 Set maximum weighing range(s) NOTE Do not enter a value that exceeds the authorised maximum load of the load cell and the dead load on it. Otherwise, there is a risk that the end user may damage the load cell by applying excessive weights.
- Page 33 6.4.7 Set readability If you configure a calibratable device, the readability d corresponds to the calibration value e. Navigate to <d> with [ ] or [ ] (For multiple weighing ranges <d1> (readability of first weighing range), <d2> (readability of second weighing range)) ...
- Page 34 • The maximum load of the scale must not be exceeded during line- arisation and adjustment. • You can find information on test weights on the Internet at: http://www.kern-sohn.com NOTE For linearisation and adjustment, ensure that the ambient condi- tions are stable (e.g.
- Page 35 6.5.1 Linearisation with a weighing range INFORMATION Carry out user-defined 2-point linearisation and adjustment as close as possible to the maximum load of the scale. These descriptions apply to the following weighing range settings: <params>→ <ranges>→ <1> Example of 2-point linearisation: ...
- Page 36 Press [➔] The zero point is determined first Scale displays <zero>→ <putld> one after the other Scale changes to display the load (in this example load = 6 kg) Place the calibration weight in the centre of the weighing plate ...
- Page 37 Example of 3-point linearisation (similar to 5-point linearisation): Navigate to <ADJUST> with [ ] or [ ] Press [➔ ] Select <LINEAR> Select the number of linearisation points: 2-points (0, user-defined value) 2point 3 points (0, centre, max.) 3point 5 points (0, ¼...
- Page 38 Press [➔] Scale performs ½-max linearisation Scale displays <wait>→ <putld> one after the other Scale switches to displaying the maximum load Place the calibration weight in the centre of the weighing plate Press [➔] ...
- Page 39 6.5.2 Linearisation with two weighing ranges INFORMATION Carry out user-defined 2-point linearisation and adjustment as close as possible to the maximum load of the scale. These descriptions apply to the following weighing range settings: <params>→ <ranges>→ <2> Example of 2-point linearisation: ...
- Page 40 Press [➔] The zero point is determined first Scale displays <zero>→ <putld> one after the other Scale switches to the display of the user-defined load Place the calibration weight in the centre of the weighing plate ...
- Page 41 Example of 3-point linearisation: Navigate to <ADJUST> with [ ] or [ ] Press [➔ ] Select <LINEAR> Select the number of linearisation points: 2-points (0, user-defined value) 2point 3 points (0, max. 1, max. 2) 3point 5 points (0, ¼...
- Page 42 Press [➔] Scale performs ½-max linearisation Scale displays <wait>→ <putld> one after the other Scale switches to display of maximum load 2 (in this example max. 2 = 15 kg) Place the calibration weight in the centre of the weighing plate ...
- Page 43 6.5.3 Carry out adjustment Navigate to <ADJUST> with [ ] or [] Press [➔ ] Select <cal> Select <calext> Unload the scales / load receptor The calibration weight to be applied is displayed Prepare the calibration weight (do not place it on the weighing pan yet) ...
- Page 44 Place the calibration weight in the centre of the weighing plate Press [➔ ] Wait until <remvld> appears on the display Unload the scales / load receptor Scale switches to weighing mode TKFC-TM-C-IA-e-2410...
- Page 45 6.5.4 Perform calibration with user-defined calibration weight Navigate to <ADJUST> with [ ] or [ ] Press [➔ ] Select <cal> Select <caleud> Unload the scales / load receptor Enter the calibration weight (for numerical input, see chapter 3.1) ...
- Page 46 The zero point is determined first Scale displays <zero>→ <putld> one after the other Scale changes to display the calibration weight Place the calibration weight in the centre of the weighing plate Press [➔ ] ...
- Page 47 6.5.5 Setting gravitational constants INFORMATION • Only enter the gravitational constants after adjustment and linear- isation. The two constants must be known for this. • The two gravitational constants <GrAAdJ> and <Grause> are reset to the default value after readjustment. After setting the gravitational constants, the weight value is converted and displayed in weighing mode according to the set values.
- Page 48 Press [➔ ] Scale switches back to the menu Set the gravitational constant at the installation site: The installation location is the place where the scales will be used. This enables accurate measurements. Find out which value of the constant is valid for the user before setting the scale.
- Page 49 Initialise alibi memory Navigate to <memory> with [ ] or [ ] Press [➔ ] <yes> select Press [➔] Alibi memory is initialised Scale switches back to the menu Display number of overloads In the <overld> menu, you can see how often the scale has been overloaded with regard to the configured maximum load.
- Page 50 6.8.1 Display serial number The serial number can only be set via KCP. Information on KCP can be found on the KERN homepage: www.kern-sohn.com Navigate to <info> with [ ] or [ ] Press [➔] Select <serial>...
- Page 51 Press [➔] Scale changes to display the software version After 3 seconds, the display switches back to <ver> 6.8.3 Display software version for calibratable devices Navigate to <info> with [ ] or [] Press [➔] ...
- Page 52 Select <advalu> Press [➔] Scale changes to display the current value of the A/D converter (dynamic display) Press [ ] to return to the menu TKFC-TM-C-IA-e-2410...
- Page 53 Restore factory settings Restoring the factory settings resets the entire scale. All settings in the service menu and in the operating menus are reset. Use [ ] or [ ] to navigate to <reset>. Press [➔ ] Scale switches to the display of <all> ...
- Page 54 Menu • Further menus and settings (e.g. application menu, setup menu) are described in the operating instructions for the display unit. • Only the first 3 menu levels are listed in the menu overview. Fur- ther levels are described in the respective operating steps. Level 1 Level 2 Level 3...
- Page 55 Level 1 Level 2 Level 3 Description of the Weighing parameters params Settings for calibration capa- Verifd bility Activate calibration capabi- lity Deactivate calibration capa- bility Weighing range setting ranges 1 Weighing range 2 weighing ranges Basic unit unit Number of decimal places deci Maximum load Maximum load of the 1st...
- Page 56 Level 1 Level 2 Level 3 Description of the Alibi memory setting memory Initialise memory Do not initialise memory Device information info Display serial number Serial Show software version Display software version for vera calibratable devices Display the value of the A/D Advalu converter Reset user entries...
- Page 57 Waste disposal Old appliances and accessories should not be disposed of with house- hold waste. The operator must dispose of the packaging and appliance in accord- ance with the applicable national or regional legislation at the place of use. The device consists of various components and materials, such as •...
- Page 58 INFORMATION The following information is valid for Germany. In connection with the sale of batteries and rechargeable batteries, we are obliged as a dealer under the Battery Act to inform end users of the following: • End users are legally obliged to return used batteries and rechargeable batter- ies.
- Page 59 Errors and faults Error messages Error message Explanation Zero setting range exceeded at start zerohi Zero setting range undershot at start Zerolo Zero setting range exceeded during operation Zlimit Zero setting range undershot during operation Underz Load unstable unstable Overload Underload Error during linearisation or adjustment Wrong...
- Page 60 Malfunctions Malfunction Possible cause • Display does not light up / does Scale is not switched on not switch on • Mains plug is not plugged in or is defective • Mains voltage has failed • Battery is empty • Connection between battery / SMPS board and circuit board faulty Display is incomplete / seg-...
- Page 61 Declaration of Conformity INFORMATION • Other languages of the current EC/EU Declaration of Conformity can be found online at: www.kern-sohn.com/ce • For verified scales (= conformity-assessed scales), the conformity assessment is included in the scope of delivery. TKFC-TM-C-IA-e-2410...
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