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KERN PES Series Operating Instruction

Precision balance
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Operating instruction
Precision balance
KERN PES/PEJ
Version 1.6
04/2013
GB
KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: info@kern-sohn.com
Tel: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
PES/PEJ-BA-e-1316

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  • Page 1 KERN & Sohn GmbH Ziegelei 1 Tel: +49-[0]7433- 9933-0 D-72336 Balingen Fax: +49-[0]7433-9933-149 E-Mail: info@kern-sohn.com Internet: www.kern-sohn.com Operating instruction Precision balance KERN PES/PEJ Version 1.6 04/2013 PES/PEJ-BA-e-1316...

  • Page 2: Table Of Contents

    KERN PES/PEJ Version 1.6 04/2013 Operating instruction Precision balance Contents Technical data ....................5 Declaration of conformity ................10 Basic Information (General) ................ 11 3.1. Proper use ....................11 3.2. Improper Use ....................11 3.3. Warranty ....................... 11 3.4. Monitoring of Test Resources ..............12 Basic Safety Precautions ................
  • Page 3 6.9.1. Adjustment with external weight (only PES) ......... 19 6.9.2. Adjustment test with external weight (only PES) ........21 6.9.3. Automatic adjustment (only PEJ) ............23 6.9.4. Adjustment with internal weight (only PEJ) ........... 24 6.9.5. Adjustment test with internal weight (only PEJ) ........25 6.10.
  • Page 4 12.4.1. Entering 2 limits by weighing ..............60 12.4.2. Entering 3 or 4 limits by weighing ............63 12.4.3. Numeric entering of 2 limits ..............66 12.5. Evaluation with difference values ............69 12.5.1. Entering 2 limits by weighing ..............69 12.5.2.

  • Page 5: Technical Data

    1. Technical data KERN PES 220-3M PES 420-3M PES 620-3M Readability (d) 0.001 g 0.001 g 0.001 g Weighing range (max) 220 g 420 g 620 g Minimum load (Min) 0.02 g 0.02 g 0.1 g Verification value (e) 0.01 g 0.01 g...
  • Page 6 KERN PES 2200-2M PES 4200-2M PES 6200-2M Readability (d) 0.01 g 0.01 g 0.01 g Weighing range (max) 2,200 g 4,200 g 6,200 g Minimum load (Min) 0.5 g 0.5 g Verification value (e) 0.1 g 0.1 g 0.1 g...
  • Page 7 KERN PES 8200-1M PES 15000-1M PES 31000-1M Readability (d) 0.1 g 0.1 g 0.1 g Weighing range (max) 8,200 g 15,000 g 31,000 g Minimum load (Min) Verification value (e) Accuracy class Reproducibility 0.1 g 0.1 g 0.1 g Linearity ±...
  • Page 8 KERN PEJ 220-3M PEJ 420-3M PEJ 620-3M Readability (d) 0.001 g 0.00 1g 0.001 g Weighing range (max) 220 g 420 g 620 g Minimum load (Min) 0.02 g 0.02 g 0.1 g Verification value (e) 0.01 g 0.01 g 0.01 g...
  • Page 9 KERN PEJ 2200-2M PEJ 4200-2M Readability (d) 0.01 g 0.01 g Weighing range (max) 2,200 g 4,200 g Minimum load (Min) 0.5 g 0.5 g Verification value (e) 0.1 g 0.1 g Accuracy class Reproducibility 0.01 g 0.01 g Linearity ±...

  • Page 10: Declaration Of Conformity

    EN60950-1:2006/A11:2009/A1:2010/A12:2011 20.03.2013 Datum Signatur Date Signature 72336 Balingen Albert Sauter Ort der Ausstellung Place of issue KERN & Sohn GmbH Geschäftsführer Managing director KERN & Sohn GmbH, Ziegelei 1, D-72336 Balingen, Tel. +49-[0]7433/9933-0 Fax +49-[0]7433/9933-149, E-Mail: info@kern-sohn.com, Internet: www.kern-sohn.com PES/PEJ-BA-e-1316...

  • Page 11: Basic Information (General)

    The balance may only be used according to the described conditions. Other areas of use must be released by KERN in writing. The appliance may only be opened by trained service technicians according to KERN standards.

  • Page 12: Monitoring Of Test Resources

    Infor- mation is available on KERN’s home page (www.kern-sohn.com) with regard to the monitoring of balance test substances and the test weights required for this. In KERN’s accredited DKD calibration laboratory test weights and balances may be...

  • Page 13: Unpacking, Setup And Commissioning

    6. Unpacking, Setup and Commissioning 6.1. Installation Site, Location of Use The balances are designed in a way that reliable weighing results are achieved in common conditions of use. You will work accurately and fast, if you select the right location for your balance. Therefore, observe the following for the installation site: Place the balance on a firm, level surface;...
  • Page 14 Your balance in overview: Air bubble Covering lid over underfloor weighing device Rear view: RS 232 interface Printer interface Connection net adapter Antitheft device PES/PEJ-BA-e-1316...

  • Page 15: Scope Of Delivery

    6.3. Scope of delivery Serial accessories: Balance Weighing plate Mains power supply Operating Manual Protective cover 6.4. Setup Positioning of weighing plate: Levelling balance: Use the foot screws to level the balance until the air bubble in the bubble level is in the pre- scribed circle.

  • Page 16: Mains Connection

    Power is supplied via the external mains power supply. The stated voltage value must be the same as the local voltage. Only use original KERN mains power supplies. Using other makes requires consent by KERN. In the menu you can activate the AUTO-SLEEP function In net operation the balance after 3 min without load change or key pressure passes in a sleep mode.

  • Page 17: Initial Commissioning

    6.8. Initial Commissioning A warming up time of 10 minutes after switching on stabilizes the measuring values. The accuracy of the balance depends on the local acceleration of gravity. Please be sure to observe the information in the chapter on adjusting in chap. 6.9. 6.8.1.

  • Page 18: Bar Graph Display

    6.8.2. Bar graph display In configuration menu 1 (chapter 7) you can activate/deactivate the bar graph dis- play. Hide bar graph Show bar graph weihging dish unloaded half of weighing range weighing range is used Wägeplatte ist unbelastet halbe Höchstlast Waage ist mit Höchstlast belastet to full capacity The weighing range of the balance is divided into 40 graphic cuboids.

  • Page 19: Adjustment

    10 kg + 5 kg (F1) 7000 g Information concerning the adjusting weights is available at: http://www.kern-sohn.com Procedure when adjusting: Observe stable environment conditions. A warming-up time of ca. 30 minutes for stabilisation is necessary. Ensure that there are no objects on the weighing plate.
  • Page 20 Operation Display Activate function [ ] (see chap. 7).   Zero point will be saved. Carefully place adjusting weight in the centre of the weighing plate  Adjustment process is started.   The process of adjustment is completed. Remove adjusting weight, balance will return ...

  • Page 21: Adjustment Test With External Weight (Only Pes)

    6.9.2. Adjustment test with external weight (only PES) During adjustment tests the balance automatically compares the saved value of the adjustment weight with the actual value. This is only a check, i.e. no values are changed. Procedure: Observe stable environmental conditions. A warming up time of ca. 1 hour is re- quired for stabilization.
  • Page 22 Start of the adjustment test:   Carefully place adjusting weight in the centre of the weighing plate   The difference between the saved value and the measured value is displayed.  Take away adjustment weight.  Press any key; the adjustment process is cancelled and the balance returns to weighing mode.

  • Page 23: Automatic Adjustment (Only Pej)

    6.9.3. Automatic adjustment (only PEJ) After switching on the balance, the automatic adjustment starts with the internal ad- justment weight. Switch on the balance using ON/OFF. The balance carries out a selftest, „M“ will be displayed flashing.  After that the automatic adjustment starts: „Aut.

  • Page 24: Adjustment With Internal Weight (Only Pej)

    6.9.4. Adjustment with internal weight (only PEJ) With the internal adjustment weight, the weighing accuracy can be checked and re- adjusted at any time. Procedure when adjusting: Observe stable environmental conditions. A warming up time of ca. 1 hour is re- quired for stabilization.

  • Page 25: Adjustment Test With Internal Weight (Only Pej)

     6.9.5. Adjustment test with internal weight (only PEJ) During adjustment tests the balance automatically compares the saved value of the adjustment weight with the actual value. This is only a check, i.e. no values are changed. Procedure: Observe stable environmental conditions. A warming up time of ca. 1 hour is re- quired for stabilization.
  • Page 26  The difference between the saved value and the measured value is displayed.  Press any key; the adjustment process is cancelled and the balance returns to weighing mode.  PES/PEJ-BA-e-1316...

  • Page 27: Verification

    6.10. Verification General introduction: According to EU directive 90/384/EEC 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 c) For official purposes.

  • Page 28: Seals And Unlocking Switch

    6.10.1. Seals and unlocking switch Position:  Unlocking switch  Seal Seal After verification the balance is sealed at the indicated positions. Verification of the balance is invalid without the "seal". Access to the unlocking switch by removing the seal (verification will be invalid!) and the rubber plug (see drawing).

  • Page 29: Application And Configuration Menu 1

    7. Application and configuration menu 1 In the menu the settings of the balance can be modified and functions can be acti- vated. This way, the balance can be adjusted to individual weighing requirements. The menu is structured as follows ...
  • Page 30 Changing the function: Further pressing the keys will call up the various functions of the menu (see table chapter 7.2) Changing the parameter: To change the last digit of the parame- ter, actuate the TARE-key or the arrow keys. Saving your settings: Leave the function menu and return to weighing mode General information about using the arrow keys for entering:...

  • Page 31: Menu Overview

    7.2. Menu overview The manufacturer’s setting has a certain standard configuration. This one is marked with *. Function Display Selection Description of the options Weighing Parts counting Weighing mode Percent determination Density determinination of solids dest. Water Measure medium Measuring liquid of your selection only output measuring value density Data output Output of all density parameters...
  • Page 32 CAL-key deactivated Adjustment Automatic internal adjustment * : Factory setting PEJ * : Factory setting for Class I Adjustment with external weight External adjustment * : Factory setting for Class II Adjustment test with external weight Hide bar graph Bar graph Show bar graph Automatic turn-off for bat- Automatic turn-off after 3 min.

  • Page 33: Parameter Additional Functions

    7.2.1. Parameter additional functions Not displayed at menu setting „ “ Function Display Selection Description of options Tolerance marker is always displayed, even if Display conditions of standstill control is not yet displayed. the tolerance marker Tolerance marker is only displayed in connection with standstill control.

  • Page 34: Parameter For Serial Interface

    7.2.2. Parameter for serial interface Not shown for menu setting „ “ (interface de-activated). Function Display Selection Description of the options No data output Continuous data output Continuous data output stable weighing val- Output for stable and instable weighing val- ues after pressing PRINT key Output for stable weighing value after pre- vious relief of balance...
  • Page 35 Parity No parity bit only at setting Odd parity Even parity Data Bits 7 bits only at setting 8 bits Stop Bits 1 bit only at setting 2 bit Always use this setting not documented Always use this setting not documented PES/PEJ-BA-e-1316...

  • Page 36: Configuration Menu 2

    8. Configuration menu 2 8.1. User principle of the menu control Operation Display Switch on balance: Call up menu: Hold F-key while TARE key is pressed until [ ] is displayed. When releasing, the first function is dis- played [ Changing the function: Further pressing the keys will take you through the various functions of the...

  • Page 37: Menu Overview

    Changing the parameter: To change the last digit of the parameter actuate TARE-key or arrow keys. Saving your settings: Leave the menu and return to weighing mode 8.2. Menu overview The manufacturer’s setting has a certain standard configuration. This one is marked with *.

  • Page 38: Operation

    9. Operation 9.1. Keyboard overview Choice Function Turn on/off Output of the weight value on an external device (printer) or PC Save function parameters Addition of displayed values in addition memory Menu call up "Enter tolerance limits" Switching the displayed value (g, ct, Pcs, %) Entering numeric values Choosing the function values within the function Call up individual functions (multiple print)

  • Page 39: Overview Of Display

    9.2. Overview of display Display Description g, kg Gram, Kilogram Zeroing display Minus ο Stability display Tara symbol Gross weight Parts counting Percent weighing Tolerance weighing Adding function active ∑ Total Output date/time Balance carries out balance function, e.g. unit count / display of stored value Display for adjustment.

  • Page 40: Weighing Mode

    10. Weighing mode This way, 4 different weighing modes are available for you: 1. Weighing [ 2. Weighing/parts counting [ 3. Weighing/percent determination [ 4. Weighing/density determination [ Excepted weighing / density determination you can activate, with the selection of of a weighing mode, more functions like e.g.

  • Page 41: Taring

    10.1.1. Taring The dead weight of any weighing container may be tared away by pressing a button, so that the following weighings show the net weight of the goods to be weighed. Operation Display Place empty tare container on the weigh- ing plate.
  • Page 42 The taring process can be repeated any number of times, e.g. when adding several components for a mixture (adding). Reset display to "0": The total weight of the container is tared away. Add more components into the weighing container (adding). Now read off the weight of the added item to be weighed on the display.

  • Page 43: Net/Gross

    10.1.2. Net/gross The dead weight of any weighing container may be tared away by pressing a button. For subsequent weighings the net weight of the goods to be weighed as well as the gross weight goods + taring container can be displayed. Condition: * Function [ ] active (see chapter 7) Operation...

  • Page 44: Parts Counting

    Use the F key to switch from net weight to gross weight or vice versa This procedure may be repeated any number of times (max. weighing range of the balance). 10.2. Parts counting With parts counting you can either count parts into a container or remove parts from a container.
  • Page 45 The display shows flashing the last Determine the reference unit: saved reference quantity. Press for about 4 seconds until [U. SEt.] appears, then re- The display e.g. 10 Pcs. prompts you to lease enter 10 pieces as reference. Change reference quantity: Use the TARE-key or the arrow keys to switch between the following reference quantities:...
  • Page 46 The reference weight is saved. Remove reference weight. Count the items: Now you can fill the items to be counted into the container. The respective quanti- ty is shown in the display. By repeated pressing, switching option of the displayed value of the displayed val- ue e.g.

  • Page 47: Percent Determination

    10.3. Percent determination Percent weighing allows to display weight in percent, in relation to a reference weight. The displayed weighing value is stored as a standard percent value (default setting: 100%). 10.3.1. Entering the reference weight by weighing Operation Display Activate function [ (see chap.

  • Page 48: Numeric Entering Of The Reference Weight

    From now, the added weight is shown in %. By repeated pressing, switching option of the displayed value in „g“ or %“ NOTE: If the error message “o-Err “ is displayed, the reference weight is outside the weighing range The 100% reference is preserved until the balance is disconnected from the mains.
  • Page 49 With "0" flashing, you are prompted to enter the reference weight numerically Entering the numeric value: Þ Þ Þ » Þ Þ Þ Any time you press TARE-key or the ar- row key, you will go through the numbers 0-9, decimal dot and minus Select the number to be changed (the active position flashes): An acoustic signal sounds;...
  • Page 50 From now, the added weight is shown in %. By repeated pressing, switching option of the displayed value in „g“ or %“ NOTE: If the error message “o-Err “ is displayed, the reference weight is outside the weighing range The 100% reference is preserved until the balance is disconnected from the mains.

  • Page 51: Density Determination Of Solids (Hydrostatic Weighing)

    10.4. Density determination of solids (hydrostatic weighing) Density is the relationship of weight [g] : volume [cm ]. The weight is determined by weighing the sample in air. The volume results from the ascending force [g] of the sample dipped in a liquid. The density [g/cm ] of that liquid is known (principle of Archimedes).
  • Page 52 Input of temperature: Þ Þ Þ » Þ Þ Þ Any time you press TARE-key or the ar- row key, you will go through the numbers 0-9, decimal dot and minus Select the number to be changed (the active position flashes): Save, an acoustic signal sounds Once you have selected a measuring liquid according to your selection its density is input (input range 0.0001 to 9.9999 g/cm...
  • Page 53 After the parameter input for the measuring liquid, the density of your sample will be determined 1. Weight of the sample in air Tare balance with sample holder Put-on sample Wait till the weight display on the bal- ance is stable The weight of the sample in air is saved 2.
  • Page 54 Place sample and immerse it  ƒ Wait till the weight display on the bal- ance is stable The density of your sample is displayed, characterized by the u symbol right above. The weight of the sample in the measuring liquid is saved Return to density determining mode PES/PEJ-BA-e-1316...

  • Page 55: Adding Of Displayed Values

    11. Adding of displayed values Any number or individual weighings are automatically added to a total, e.g. all indi- vidual weighings of a batch. The adding function is possible in all functions of the weighing mode (Weighing/parts counting/ percent determination). Operation Display 1.

  • Page 56: Adding With Auto-Tare

    7. Wait until stability display is shown  The displayed value is added into the total adding memory. The total [ ] is briefly shown Remove weight and place further weights on balance; for each weight, re- peat step 4 to 6 8.

  • Page 57: Weighing With Tolerance Range

    12. Weighing with tolerance range 12.1. General Information This balance can be used as dispensing as well as sorting balance; the respective lower tolerance limit as well as upper tolerance limit can be programmed. An acous- tic signal supports portioning, dispensing or sorting. In the menu, (see chapter 7) activate the tolerance weighing function: or the combination tolerance weighing/adding (tolerance control on the re- spective poured quantity):...

  • Page 58: Display Of The Results

    There are two different ways to set the tolerance limits: 1. Place the values (object) on the balance - > Save this value 2. Numeric entering of values - > Enter the limits via keyboard. NOTE:  If a limiting value was set it remains saved until the balance is turned off. ...

  • Page 59: For 3 Or 4 Limits

    12.2.2. For 3 or 4 limits Display of tolerance mark  Limit 4. Limit point Weight Limit 5  Limit 4 Limit 3. Limit point Weight < 4. Limit point   Limit 3 Limit 2. Limit point Weight < 3. Limit point ...

  • Page 60: Evaluation Of Absolute Values

    12.4. Evaluation of absolute values 12.4.1. Entering 2 limits by weighing Important information! Always begin by entering the lower limit value, followed by the upper limit value. Enter. Operation Display 1. Activate tolerance weighing function ] or [ ] (see chap. 7). 2.
  • Page 61 4. Entering limiting values: Press for about 4 seconds, until ] is displayed, then release The flashing display (last saved value) prompts you to enter the lower limiting value ( 5. Place sample for the lower (i.e. smaller) limiting value on the weigh- ing plate: 6.
  • Page 62 7. Place sample for the upper (i.e. larg- er) limiting value on the weighing plate: 8. Save: An acoustic signal sounds, the saved upper limit is briefly displayed. The balance returns to tolerance weigh- ing mode. From here evaluation takes place whether the goods to be weighed are within the two tolerance limits.

  • Page 63: Entering 3 Or 4 Limits By Weighing

    12.4.2. Entering 3 or 4 limits by weighing Operation Display 1. Activate tolerance weighing function ] or [ ] (see chap. 7). 2. Actuate required parameter selection Parameter selection for 3 limiting points: until ] or [ ] is displayed; Parameter selection for 4 limiting points: more settings of your choice (see chap.
  • Page 64 4. Entering limiting values: Press for about 4 seconds, until ] is displayed, then release The flashing display (last saved value) prompts you to enter the first lower limit- ing value ( 5. Place sample for the first limiting val- ue on the weighing plate: An acoustic signal sounds, the saved 6.
  • Page 65 8. Save: An acoustic signal sounds, the saved second weighing value is briefly dis- played. The flashing display (last saved value) prompts you to enter the third limiting value ( 9. To enter 3rd and 4th limiting value, repeat steps 7 and 8 10.

  • Page 66: Numeric Entering Of 2 Limits

    12.4.3. Numeric entering of 2 limits Operation Display 1. Activate tolerance weighing function ] or [ ] (see chap. 7). 2. Actuate required parameter selection Parameter selection for 2 limiting points: until ] or [ ] is displayed; Parameter selection for absolute value: more settings of your choice (see chap.
  • Page 67 Display changes to flashing "zero" The flashing display prompts you to nu- merically enter the lower limit 6. Entering numeric value for the lower limit Þ Þ Þ » Þ Þ Þ Any time you press the TARE-key or the arrow keys you will go through the num- bers 0-9, decimal dot and minus Select the number to be changed (the...
  • Page 68 7. Save: An acoustic signal sounds, the saved lower weighing value is briefly displayed. The flashing display (last saved value) prompts you to enter the upper limiting value 8. To enter the numeric value for the upper limiting value, repeat steps 5 - 9.

  • Page 69: Evaluation With Difference Values

    12.5. Evaluation with difference values 12.5.1. Entering 2 limits by weighing Important information! Always begin by entering the lower limit value, followed by the upper limit value. Enter. Operation Display 1. Tolerance weighing function ] or [ ] (see chapter 2.
  • Page 70 4. Entering a reference value: Press for about 4 seconds, until ] appears, then release. The flashing display (last saved value) prompts you to enter a reference value 5. Place reference weight onto weighing plate: 6. Save An acoustic signal sounds, the saved reference value is briefly displayed.* The flashing display (last saved value) prompts you to enter the lower limiting...
  • Page 71 7. Place sample for the first limiting val- ue on the weighing plate: 8. Save An acoustic signal sounds, the saved lower difference value is briefly dis- played. The flashing display (last saved value) prompts you to enter the upper limiting value 9.

  • Page 72: Entering 3 Or 4 Limits By Weighing

    12.5.2. Entering 3 or 4 limits by weighing To enter 3 or 4 limiting values [ ] - [ ] or [ ], repeat steps 7 and 8 (see also chapter 12.4.2). Display of tolerance mark  4. limiting point ...
  • Page 73 4. Entering a reference value: Press for about 4 seconds, until ] appears, then release. The last saved reference weight appears flashing Display changes to flashing "zero" The flashing display prompts you to nu- merically enter a reference weight 6. Entering a numeric value Þ...
  • Page 74 7. Confirm An acoustic signal sounds, the saved reference weight is briefly displayed. The flashing display (last saved value) prompts you to enter the lower differ- ence value 8. Entering lower limit Repeat steps 5 and 6 9. Confirm An acoustic signal sounds, the saved lower difference value is briefly dis- played.

  • Page 75: Setting Date And Time

    11. Save An acoustic signal sounds, the saved upper difference value is briefly dis- played. The balance returns to tolerance weigh- ing mode. From here evaluation takes place whether the goods to be weighed are within the two tolerance limits. To enter 3 or 4 limiting values [ ] - [ ] or [...
  • Page 76 Press again Last stored time appears.* 2. Resetting time Time to be changed is flashing Select the number to be changed (the active position flashes): Changing the numerical value 3. Save After storing your setting, the date dis- play will appear 4.

  • Page 77: Date

    13.2. Date You can set the display of your data output under menu item (see menu overview chpt. 7.2.). Operation Display 1. Call up menu Keep pressed until ] appears. Press again Last stored time appears Press again Last stored date PES/PEJ-BA-e-1316...
  • Page 78 2. Resetting the date Time to be changed is flashing Select the number to be changed (the active position flashes): Changing the numerical value After storing your settings, the balance 3. Save will automatically return to weighing mode. PES/PEJ-BA-e-1316...

  • Page 79: Interval Output Function

    13.3. Interval output function This menu item allows you to determine after which interval you wish data output to be carried out. To achieve this, activate the [ ] or [ ] function in the menu (see chpt. 7.2.1) 13.3.1. Interval setting Operation Display...

  • Page 80: Start/Stop Interval Output

    13.3.2. Start/Stop interval output Operation Display Start output Stop output The balance returns automatically into weighing mode. PES/PEJ-BA-e-1316...

  • Page 81: Input Balance Id-No

    13.4. Input balance ID-no. Display symbol [  ] and [  ] You can enter a 6-digit number using the characters [0-9], [A-F] and [ - ]. Space character is displayed as [ _ ]. Operation Display 1. Call up menu When releasing, the first function is dis- played [ Hold F-key while TARE –key is pressed...
  • Page 82 Select the number to be changed (the active position flashes): Changing the numerical value 5. Save: Your setting will be stored and the next menu item will appear. 6. Return to weighing mode PES/PEJ-BA-e-1316...

  • Page 83: Data Output

    14. Data output The regular equipment of the balance includes an RS 232C interface and a printer interface. 14.1. RS 232C interface The RS 232C interface allows a bi-directional data exchange from the balance to external devices. This data exchange is asynchronous using ASCII - Code. Pin allocation of balance output plug: Pin nr.

  • Page 84: Printer Interface (Unidirectional Data Exchange)

    14.2. Printer interface (unidirectional data exchange) Pin allocation of balance output plug: Pin nr. Signal Input/Output Function EXT.TARE Input External tare function Output Transmit data Signal ground 14.3. Description of interface The selection of a certain operating mode allows you to set the output format, the output control, the transmission speed and the parity bit.

  • Page 85: Data Output

    14.4. Data output 14.4.1. Format for data transmission Any of the data formats below may be set by selecting the relevant function on the balance ( see menu overview chpt. 7.2): 6-digit data format Consisting of 14 words, including final character; CR=0DH, LF=0AH (CR=balance reverse motion / LF=line feed) 7-digit data format NOTE: The 7-digit format is identical to the 6-digit, with the exception of the addi-...

  • Page 86: Units

    14.4.4. Units U 1, U 2 = 2 words as ASCII-Codes Code Meaning Symbol (SP) Gram Kilogram Karat Qty. (SP) Percent 14.4.5. Result evaluation for balances with tolerance range S 1 = 1 word Code Meaning Goods to be weighed below tolerance limit 1- or 2 end Goods to be weighed within tolerance range points...

  • Page 87: Data Status

    14.4.6. Data status S 2 = 1 word Code Meaning 53 H Data stabilized * 55 H Data not stabilized (fluctuating) * 45 H Data error, all data apart from S 2 unreliable Balance indicating error (o-Err, u-Err) 20 H No special status 14.4.7.

  • Page 88: Remote Control Instructions

    14.5. Remote control instructions Code Meaning No data output Continuous data output Continuous data output stable weighing values Output for stable and instable weighing values after pressing PRINT key Output for stable weighing value after previous re- lief of balance One output for stable weighing value.

  • Page 89: Service, Maintenance, Disposal

    When cleaning please ensure that the membrane is not damaged or soiled. 15.2. Service, maintenance The appliance may only be opened by trained service technicians who are autho- rized by KERN. Before opening, disconnect from power supply. 15.3. Disposal Disposal of packaging and appliance must be carried out by operator according to valid national or regional law of the location where the appliance is used.
  • Page 90 Fault Possible cause The displayed weight does not glow. The balance is not switched on. The mains supply connection has been interrupted (mains cable not plugged in/faulty). Power supply interrupted. The displayed weight is permanently Draught/air movement changing Table/floor vibrations The weighing plate is in contact with foreign matter.

This manual is also suitable for:

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