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Related Manuals for KERN PDS
Summary of Contents for KERN PDS
- 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 Operating instructions Precision scales KERN PDS, PDT Type TPDS-A, TPDT-A Version 1.1 2024-12 TPDS-A_TPDT-A-BA-e-2411...
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Page 2: Table Of Contents
KERN PDS, PDT Version 1.1 2024-12 Operating instructions Precision scales Contents Technical data ................5 Declaration of Conformity ............10 Device overview ................11 Components ..................... 11 Operating elements .................. 13 Basic information (general) ............16 Intended use .................... 16 Improper use .................... - Page 3 Internal adjustment ................... 29 Automatic internal calibration (isoCAL) ............ 30 Basic operation ................32 General instructions for operating with draft shield ........32 Switch on ....................32 Standby mode ..................33 Zeros ......................33 Taring ....................... 34 Applications................36 10.1 Selection of a weighing application ............
- Page 4 13.2 Maintenance, servicing ................. 76 13.3 Waste disposal ..................76 Small breakdown service ............77 Error messages ................. 78 TPDS-A_TPDT-A-BA-e-2411...
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Page 5: Technical Data
Technical data KERN PDS 300-3 PDS 600-3 PDS 1000-3 Item number / type TPDS 320-3-A TPDS 620-3-A TPDS 1020-3-A Readability (d) 0,001 g 0,001 g 0,001 g Weighing range (max) 320 g 620 g 1020 g Reproducibility 0,003 g 0,003 g... - Page 6 CORE PDS 2000-2 PDS 4000-2 PDS 6000-2 Item number / type TPDS 2200-2-A TPDS 4200-2-A TPDS 6200-2-A Readability (d) 0,001 g 0,01 g 0,01 g Weighing range (max) 2200 g 4200 g 6200 g Reproducibility 0,03 g 0,03 g 0,03 g...
- Page 7 CORE PDS 10K-5 Item number / type TPDS 10200-2-A Readability (d) 0,01 g Weighing range (max) 10200 g Reproducibility 0,03 g Linearity 0,03 g Settling time (typical) Smallest part weight for piece counting under 100 mg laboratory conditions* Smallest part...
- Page 8 CORE PDT 300-3 PDT 600-3 PDT 1000-3 Item number / type TPDT 320-3-A TPDT 620-3-A TPDT 1020-3-A Readability (d) 0,001 g 0,001 g 0,001 g Weighing range (max) 320 g 620 g 1020 g Reproducibility 0,003 g 0,003 g 0,004 g Linearity 0,003 g 0,003 g...
- Page 9 CORE PDT 2000-2 PDT 4000-2 PDT 6000-2 Item number / type TPDT 2200-2-A TPDT 4200-2-A TPDT 6200-2-A Readability (d) 0,01 g 0,01 g 0,01 g Weighing range (max) 2200 g 4200 g 6200 g Reproducibility 0,03 g 0,03 g 0,03 g Linearity 0,03 g 0,03 g...
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Page 10: Declaration Of Conformity
** Smallest part weight for piece counting - under normal conditions: ➢ Unsettled ambient conditions prevail (wind draught, vibrations) ➢ The counting parts scatter Declaration of Conformity You can find the current EC/EU Declaration of Conformity online at www.kern-sohn.com/ce TPDS-A_TPDT-A-BA-e-2411... -
Page 11: Device Overview
Device overview Components Pos. Designation Windbreak Weighing plate Bubble level Display with buttons (touchscreen) Levelling feet TPDS-A_TPDT-A-BA-e-2411... - Page 12 Pos. Designation USB-C connection RS232 / RS485 connection Mains connection Anti-theft device Underfloor weighing system TPDS-A_TPDT-A-BA-e-2411...
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Page 13: Operating Elements
Operating elements 3.2.1 Keyboard overview Button Name Function in operating mode ➢ Switch on ➢ Stand-by: The time is displayed during stand-by. Press again to switch the scales back on ➢ Output data PRINT ➢ Zeros ZERO ➢ Taring TARE 3.2.2 Numerical input Button... - Page 14 3.2.3 Display overview Pos. Symbol Description of the Button: [Menu] Button [iso]→ Starts isoCal Button: [CAL]→ Starts external calibration Application filter: Weighing or filling Environment button→ Switches between the environ- mental conditions: "very stable" (1.1.1.1), "stable" (1.1.1.2), "not stable" (1.1.1.3), "very unstable" (1.1.1.4), 1.1.1.1 1.1.1.2 1.1.1.3...
- Page 15 Pos. Symbol Description of the Metrological data (depending on model): Maximum load Metrological data (depending on model): Readability Indicator: Printer connected Indicator: Computer connected Additional display (e.g. AUTO) • Weighing unit display and button: Displays the current weighing unit and allows you to change it by pressing the button (for available weigh- ing units, see Chap.
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Page 16: Basic Information (General)
• The scale must not be modified in any way. This can lead to incorrect weighing results, safety-related defects and the destruction of the scale. • The scale may only be used in accordance with the specifications described. Deviating areas of use/application must be approved in writing by KERN. Guarantee Warranty expires with •... -
Page 17: Test Equipment Monitoring
KERN homepage (www.kern-sohn.com). In its accredited calibration labor- atory, KERN can calibrate test weights and scales quickly and cost-effectively (trace- ability to the national standard). -
Page 18: Unpacking, Installation And Commissioning
Unpacking, installation and commissioning Installation site, place of use The scales are designed to achieve reliable weighing results under normal operating conditions. You can work accurately and quickly if you choose the right location for your scales. Observe the following at the installation site: •... -
Page 19: Unpacking And Checking
Unpacking and checking Remove the appliance and accessories from the packaging, remove the packaging material and set up at the designated workstation. Check that all parts included in the scope of delivery are present and undamaged. Scope of delivery / standard accessories: •... - Page 20 Check levelling regularly Devices without wind protection: Insert the weighing plate support (A) into the holes provided. Place the weighing plate (B) in position. Make sure that the scales are level. TPDS-A_TPDT-A-BA-e-2411...
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Page 21: Mains Connection
Check that the voltage input of the scale is set correctly. The scale may only be connected to the mains if the information on the scale (sticker) and the local mains voltage are identical. Only use original KERN power supply units. The use of other makes re- quires the consent of KERN. Important: ➢... -
Page 22: Connection Of Peripheral Devices
Before connecting or disconnecting additional devices (printer, PC) to the data inter- face, the scale must be disconnected from the mains. Only use accessories and peripherals from KERN with your balance, these are opti- mally matched to your balance. Initial commissioning In order to obtain accurate weighing results with electronic scales, the scales must have reached their operating temperature (see warm-up time, section 1). -
Page 23: Adjustment
Information on test weights can be found on the Internet at: http://www.kern-sohn.com • Ensure stable ambient conditions. A warm-up time (see section 1) is required for stabilisation. • Ensure that there are no objects on the weighing plate. -
Page 24: External Adjustment
External adjustment • The adjustment can be cancelled with [<] • The following error message appears in the event of an adjustment error: <CAL. / ERR> Activate external adjustment in the menu: Open the following menu: <setup>→ <balance> <cal/adj> open ... - Page 25 <cal. e xt> is displayed Required calibration weight in grams is dis- played and starts flashing Place the calibration weight in the centre of the weighing plate The calibration weight display stops flash- Scale performs the external adjustment ...
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Page 26: External Adjustment With User-Defined Adjustment Weight
External adjustment with user-defined adjustment weight • The adjustment can be cancelled with [<] • The following error message appears in the event of an adjustment error: <CAL. / ERR> Enter user-defined calibration weight: Open the following menu: <input>→ <cal. w t> ... - Page 27 Select <e. c al. u 5r.> Exit menu Perform external adjustment: Unload the scales Press [ZERO] Press [CAL]. Required calibration weight in grams is displayed Confirm <CAL. / DN> appears on the display ...
- Page 28 <cal. / up.> appears on the display Remove the calibration weight from the weighing plate <cal. / Ok> appears on the display The scale switches to weighing mode TPDS-A_TPDT-A-BA-e-2411...
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Page 29: Internal Adjustment
Internal adjustment Internal adjustment is only available for the following series: TPDT-A Activate internal adjustment in the menu: Open the following menu: <setup>→ <balance> <cal/adj> open Select <int. c al> Perform internal adjustment: Unload the scales ... -
Page 30: Automatic Internal Calibration (Isocal)
When adjustment complete, <cal. / ok> appears on the display The scale switches to weighing mode Automatic internal calibration (isoCAL) The isoCAL function causes the scale to automatically carry out an internal calibration based on the ambient temperature and the running time. The isoCAL function is always active for the following series and cannot be deactivated: TADT-A Activate isoCAL in the menu:... - Page 31 Variant A - Manual start of internal adjustment when prompted: [iso] flashes Confirm Internal adjustment is carried out The scale switches to weighing mode Variant B - Automatic start of internal adjustment: [iso] flashes Internal adjustment is carried out automat- ically ...
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Page 32: Basic Operation
Basic operation General instructions for operating with draft shield Ensure that the scale doors are closed during weighing to obtain accurate weighing results. Switch on Press [ON] The display of the scales switches on The scales carry out a self-test ... -
Page 33: Standby Mode
Standby mode To switch off the scale completely, it must be disconnected from the mains. However, this is not recommended if the scale is in regular use due to the warm-up time. Press [ON] when the scales are switched ... -
Page 34: Taring
Taring The tare weight of any weighing container can be tared off at the touch of a button so that the net weight of the weighed goods is displayed for subsequent weighings. Place the container on the weighing plate ... - Page 35 • When the scales are unloaded, the stored tare value is displayed with a negative sign. • To delete the stored tare value, release the load on the weighing plate and press the TARE button or ZERO button. • The taring process can be repeated any number of times, for ex- ample when weighing in several components to form a mixture (ad- ditional weighing).
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Page 36: Applications
Applications 10.1 Selection of a weighing application Call up the menu and select the weighing application: Open menu Select <applic. > Select the desired application (for an over- view of the applications, see Chap. 11.2) The selected application is marked with a circle Make further settings for a weighing application: ... -
Page 37: Simple Weighing
10.2 Simple weighing 10.2.1 Application menu Applic→ weigh Parameters Setting Code Description of the UNIT 4. 1 . 1 . 1 Activates the button to switch between weighing units 4. 1 . 1 . 2 Deactivates the button to switch between weighing units APP. - Page 38 10.2.2 Carry out simple weighing Open the following menu: <applic> → <weigh> Select application Exit menu Zeroing or taring if necessary Load the sample Read the weight value Overload warning Avoid overloading the appliance beyond the specified maximum load (Max), minus any existing tare load.
- Page 39 10.2.3 Carry out underfloor weighing ⚠ CAUTION Risk of breakage due to overloading of the hook Falling loads can lead to injuries Check that the scales are free of damage and in perfect working order before each use. Never exceed the specified maximum load (max.) of the scale. ...
- Page 40 10.2.4 Changing the weighing unit Activate available weighing units for quick access in the menu: Open the following menu: <setup> → <balance> Open <wt. u nit> Select the desired weighing unit (refer to the technical data for available weighing units) ...
- Page 41 Change the weighing unit during operation: Touch the weighing unit field (quick access must be activated→ see Chap. 10.2.1) The display changes the weighing unit To deactivate the quick access function, make the following setting: Applic→ weigh→ unit→ off After this setting, the scale only displays the last active weighing unit.
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Page 42: Counting
10.3 Counting The "Counting" application enables several parts to be counted on the weighing plate. The scale requires the average piece weight to determine the number of pieces. For this purpose, a defined number of parts is placed on the scale as a reference quantity. This number is used to calculate the average piece weight, which serves as the basis for the count. - Page 43 Place reference quantity Press [v] Select number of reference pieces Current reference quantity is displayed Weigh the total number of items: Add more pieces Read off the total quantity TPDS-A_TPDT-A-BA-e-2411...
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Page 44: Percentage Weighing
10.4 Percentage weighing The "Percentage weighing" application allows you to determine the percentage of a sample in relation to a reference weight. 10.4.1 Application menu Applic→ percent Parameters Setting Code Description of the DEC. P LCS NONE 4. 3 . 1 . 1 Percentage value is displayed without deci- mal places 1 DEC. - Page 45 Apply reference weight Press [v] Select the percentage value of the refer- ence weight Current percentage value is displayed Remove reference weight Determine the percentage value of another load: Apply a new load Percentage value of the load in relation to the reference weight is displayed TPDS-A_TPDT-A-BA-e-2411...
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Page 46: Net Total
10.5 Net total The "Net total" application enables the weighing of individual components to form a mixture. 10.5.1 Application menu Applic→ net. t ot Parameters Setting Code Description of the PRT. C OMP 4. 4 . 1 . 1 Values of the individual components are output 4. - Page 47 The scale stores the weight of the compo- nent (the number at the bottom left indi- cates the number of components weighed) The scales tare automatically Weigh in the next component The scale displays the weight of the com- ponent ...
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Page 48: Dynamic Weighing
10.6 Dynamic weighing The "Dynamic weighing" application enables the weighing of unsteady loads (e.g. an- imals). As soon as the weight fluctuations are within a certain range, the scales can "freeze" and display the measurement result. 10.6.1 Application menu Applic→ anim. w g Parameters Setting Code... - Page 49 Set the average number of measuring cycles: The higher the set value, the more measurements are taken before a result is dis- played. If the load is too unsteady, the measurements are stopped and restarted. Press [v] Select the desired number of measuring cycles ...
- Page 50 Variant B - Automatic start (<START>→ <auto>): <AUTO> is shown on the left of the display Confirm Place sample Confirm again Read off the measurement result: Measurement is performed and the re- maining number of measurement cycles is displayed (in the example = 5 cycles) ...
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Page 51: Calculation
10.7 Calculation The "Calculation" application allows you to calculate the weight by multiplication or division. This can be used to calculate the weight per unit area, for example. 10.7.1 Application smenu Applic→ calc Parameters Setting Code Description of the METHOD 4. - Page 52 Enter factor or divisor: Press [v] Enter value (for numerical input, see Chap. 3.2.2) Perform calculation: Zeroing or taring if necessary Load the sample Weight value is displayed Confirm The result of the calculation is displayed ...
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Page 53: Density Determination
10.8 Density determination When determining density solids, solid first weighed then in an auxiliary medium (e.g. distilled water or ethanol) whose density is known. The difference in weight results in the buoyancy, from which the software calculates the density. The specific density of the medium used must be known to the user. The following steps are necessary to determine the density: 1. - Page 54 Immersion basket on the device for underfloor weighing Container for auxiliary medium Auxiliary medium Stable table for the scales Dipping basket A density determination set can be used as an alternative to underfloor weighing. Information on density determination kits can be found at www.kern- sohn.com TPDS-A_TPDT-A-BA-e-2411...
- Page 55 10.8.3 Carry out density determination Open the following menu: <applic>→ <density> Select application Select the substance type of the sample: Confirm Select <dec. t ype> Select fabric type If necessary, make further settings (see Chap.
- Page 56 Perform density determination (example for underfloor weighing): Measuring equipment according to chap. 0 Prepare Tare the empty basket in the air (not in the auxiliary medium) Confirm <AIR> is displayed Place the sample in the dipping basket ...
- Page 57 Place a container with water or other liquid under the scales Place the sample in the dipping basket Fully immerse the immersion basket with the sample in the water or liquid Confirm Density of the sample is displayed ...
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Page 58: Statistics Function
10.9 Statistics function The statistics function records up to 99 values and analyses them statistically. Subse- quent values are saved and output: • Highest value (maximum) • Lowest value (minimum) • Number of samples measured • Standard deviation • average A printer must be connected and configured before the function can be used. - Page 59 Variant A - Use statistics function with <tar. s tat>→ <on>: The scale is now in statistics mode Zeros, if applicable If necessary, place empty container on the weighing plate and tare Apply weight Confirm ...
- Page 60 Variant B - Use the statistics function with <tar. s tat>→ <off>: The scale is now in statistics mode Zeros, if applicable If necessary, place empty container on the weighing plate and tare Apply weight Confirm ...
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Page 61: 10.10 Peak Value Function
• Press [ ] or [ ] to switch between the display of the current weight, the display of the sample number and the average weight • All values can be deleted with [ ] • If the scale is connected to a peripheral device (e.g. printer, com- puter), a log can be output. - Page 62 Measure peak values: The scale is now in peak value mode Zeroing or taring if necessary Confirm to start the peak value measure- ment Apply weight Display peak value: Current weight is displayed Press [v] ...
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Page 63: 10.11 Tolerance Weighing
10.11 Tolerance weighing Setting a tolerance range allows you to quickly check whether a weight value is within certain limits. 10.11.1 Application smenu Applic→ check. w g Parameters Setting Code Description of the INPUT MANUAL 4. 1 0. 1 . 1 Limit values are entered numerically WG. - Page 64 Enter limit value (for numerical input, see Chap. 3.2.2) Then select and enter another limit value Confirm Exit menu Carry out tolerance weighing: Zeroing or taring if necessary Confirm to start the peak value measure- ment ...
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Page 65: 10.12 Totalise
10.12 Totalise The totalise application allows you to weigh different samples and add up the weight values. This function can be used, for example, to weigh individual batches in order to determine the total stock. 10.12.1 Application smenu Applic→ total Parameters Setting Code... - Page 66 Remove weight Apply a new weight Confirm Carry out further weighings if necessary • Press [ ] or [ ] to switch between the display of the current num- ber of values in the totaliser memory and the display of the current weight •...
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Page 67: Menu
Menu 11.1 Navigation in the menu Button Name • Open menu • Scroll forwards or backwards through menu items or settings • Return to previous menu or exit menu • Confirm current selection 11.2 Main menu Level 1 Level 2 Code Description of the SETUP... - Page 68 Level 1 Level 2 Code Description of the APPLIC. Applications→ see Chap. 10 Weigh 4. 1 . Simple weighing→ see Chap. 10.1 count 4. 2 . Counting→ see Chap. 10.3 per cent 4. 3 . Percentage weighing→ see Chap. 0 Net.
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Page 69: Setup Menu
11.3 Setup menu 11.3.1 Basic scale settings Setup→ balance Parameters Setting Code Description of the AMBIENT V. S TABLE 1. 1 . 1 . 1 Ambient conditions "very stable" STABLE 1. 1 . 1 . 2 Stable" ambient conditions UNSTABL 1. - Page 70 Parameters Setting Code Description of the WT. U NIT GRAMS 1. 1 . 5 . 1 Weighing unit: g CARATS 1. 1 . 5 . 2 Weighing unit: ct MILLIGR 1. 1 . 5 . 3 Weighing unit: mg OUNCES 1.
- Page 71 Parameters Setting Code Description of the CAL/SEQ ADJUST 1. 1 . 9 . 1 After calibration, the scale automatically switches to weighing mode CAL-ADJ 1. 1 . 9 . 2 After adjustment, a manual confirmation must be carried out before the scale switches back to weighing mode EXT.
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Page 72: Device Settings
11.3.2 Factory settings Setup→ genserv Parameters Setting Code Description of the MENU. R ES. DEFAULT 1. 2 . 1 . 1 Restore factory settings 1. 2 . 1 . 2 Do not restore factory set- tings 11.4 Device settings 11.4.1 User customisations ... -
Page 73: Data Output Settings
11.5 Data output settings Data. o ut. → prnt. p ar. Parameters Setting Code Description of the ACTIVAT MAN. N O 3. 1 . 1 . 1 Manual data output of all values MAN. A FTR 3. 1 . 1 . 2 Manual data output of sta- ble values INTERV. -
Page 74: Input Menu
11.6 Input menu input Parame- Setting Code Description of the ters DEV. I D 5. 1 . 1 Max. 14 charac- Enter device ID ters (0-9, A-Z) LOT ID PRINT 5. 2 . 1 . 1 Output lot ID in the GLP protocol 5. -
Page 75: Communication With Peripheral Devices
Switch off the scale and printer. Connect the scale to the interface of a printer using a suitable cable Error-free operation is only guaranteed with the appropriate KERN interface ca- ble (optional). Switch on the scale and printer. -
Page 76: Maintenance, Servicing, Disposal
13.2 Maintenance, servicing The device may only be opened by trained service technicians authorised by KERN. Disconnect from the mains before opening. 13.3 Waste disposal The operator must dispose of the packaging and appliance in accordance with the applicable national or regional legislation at the place of use. -
Page 77: Small Breakdown Service
Small breakdown service In the event of a fault in the programme sequence, the scale should be switched off briefly and disconnected from the mains. The weighing process must then be restarted from the beginning. Malfunction Possible cause • The power supply unit is not plugged in scales cannot switched on... -
Page 78: Error Messages
Error messages Error message Explanation HIGH Overload Underload PRE55-0 Zero setting error Pre55-t Taring error CAL/ERR Adjustment error diserr Settings error TPDS-A_TPDT-A-BA-e-2411...
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