KERN PNJ 600-3M Operating Instructions Manual
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KERN PNJ 600-3M Operating Instructions Manual

Pnj series, pns series
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Operating instructions
Precision balances
KERN PNJ / PNS
Version 1.3
2017-11
GB
KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
PNJ_PNS-BA-e-1713
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  • Page 1 KERN & Sohn GmbH Ziegelei 1 Phone: +49-[0]7433- 9933-0 D-72336 Balingen Fax: +49-[0]7433-9933-149 E-Mail: [email protected] Internet: www.kern-sohn.com Operating instructions Precision balances KERN PNJ / PNS Version 1.3 2017-11 PNJ_PNS-BA-e-1713...

  • Page 2: Table Of Contents

    KERN PNJ / PNS 2017-11 Version 1.3 Operating instructions Precision balance Contents Technical data ....................4 Dimensions ..........................6 Appliance overview ..................7 Keyboard overview ........................8 Overview of display ........................9 Basic instructions ..................10 Intended use ..........................10 Improper Use ..........................
  • Page 3 Menu ......................36 Menu [function] ......................... 36 8.1.1 Navigation in the menu ......................36 8.1.2 Menu overview ......................... 37 Menu [Function2] ........................40 8.2.1 Navigation in the menu ......................40 8.2.2 Menu overview ......................... 40 Applications ....................41 Parts counting ........................... 41 Percent determination ......................

  • Page 4: Technical Data

    1 Technical data KERN PNJ 600-3M PNJ 3000-2M PNJ 12000-1M Weighing range (max) 620 g 3200 g 12000 g Readability (d) 0.001 g 0.01 g 0.1g Minimum load (Min) 0.2 g 0.5 g Verification value (e) 0.01 g 0.1g Verification class Reproducibility 0.001 g...
  • Page 5 KERN PNS 600-3 PNS 3000-2 PNS 12000-1 Weighing range (max) 620 g 3200 g 12000 g Readability (d) 0.001 g 0.01 g 0.1 g Reproducibility 0.001 g 0.01g 0.1 g Linearity ± 0.004 g ± 0.02 g ± 0.2 g...

  • Page 6: Dimensions

    1.1 Dimensions Models d = 0.001g: Models d = 0.01g / 0.1 g: PNJ_PNS-BA-e-1713...

  • Page 7: Appliance Overview

    2 Appliance overview Models d = 0.001g: Models d = 0.01g / 0.1 g: Pos. Designation Pos. Designation Windshield Footscrews Weighing pan Fastening point for anti-theft protection Display Interface RS232 Bubble level Terminal power supply unit Operator keys PNJ_PNS-BA-e-1713...

  • Page 8: Keyboard Overview

    2.1 Keyboard overview Button Function  Turn on/off  Transfer weighing data via interface  Exit menu / back to weighing mode.  Save settings/back to weighing mode  Switch-over weighing unit  Menu access (longer pressing of the button) ...

  • Page 9: Overview Of Display

    2.2 Overview of display Display Description Weighing unit “gram” Zero indicator Display net weight values Display of stable values The balance is in stand-by mode Illuminated during data transfer Application icon for piece counting Application icon for percentage determination  Tolerance mark during check weighing Weighing unit „Momme“...

  • Page 10: Basic Instructions

    The balance may only be used according to the described conditions. Other areas of use must be released by KERN in writing. 3.3 Warranty Warranty claims shall be voided in case •...

  • Page 11: Monitoring Of Test Resources

    Information 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 calibrated (return to the national standard) fast and at moderate cost.

  • Page 12: 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: •...

  • Page 13: Scope Of Delivery / Serial Accessories

    6.2.1 Scope of delivery / serial accessories: Balance Net adapter and plug set Round weighing pan Angular weighing pan (models d = 0.001g) (models d = 0.01g / 0.1 g) Carrier for round weighing pan Carrier for angular weighing pan (models d = 0.001g) (models d = 0.01g / 0.1 g) Windshield (models d = 0.001g)

  • Page 14: Assemble Windshield (Only Models D = 0.001G)

    6.3 Assemble windshield (only models d = 0.001g) Parts overview: Quantit Quanti Guide frame Front plate (with 3 bore holes) Rear wall Inner plate Handle Side wall Fastening screw “Handle” Base frame Cover Front cap Support inner plate M4 screws PNJ_PNS-BA-e-1713...
  • Page 15 Assembly:  Loosen locking system at the back panel  Fix the back panel on the ground frame with two screws (M4)  Assemble the supports for the inner plate acc. to fig. PNJ_PNS-BA-e-1713...
  • Page 16  Fasten the front plate. Make sure that the fastening point is placed at the frame in the bore hole of the front plate.  Secure the front plate with the guide frame temporarily against falling out. PNJ_PNS-BA-e-1713...
  • Page 17  Push the side panels from the rear to the front into the guide frame. Make sure that the bore holes point towards the front plate.  Fix the handles with the fastening screws. Fastening screw Handle Handle Fastening screw ...
  • Page 18  Attach the covers and the front caps Covers Front caps  Install inner plate. For this purpose push the plate through the two supports. PNJ_PNS-BA-e-1713...
  • Page 19  Attach the upper glass pane and fix the handles with the fastening screws. Handle Bore Fastening screw PNJ_PNS-BA-e-1713...

  • Page 20: Assembly, Placing And Levelling

    6.4 Assembly, placing and levelling The right place is decisive for the accuracy of the weighing results of high-resolution precision balances (see chap. 6.1).  Place the weighing pan carrier acc. to fig. and fix it carefully e.g. with a coin. ...
  • Page 21  Place the windshield carefully on the balance and align.  For safeguarding close the locking system at the back panel.  Level balance with foot screws until the air bubble of the water balance is in the prescribed circle. Footscrews ...

  • Page 22: Mains Connection

    Check, whether the voltage acceptance on the scales is set correctly. Do not connect the scales to the power grid unless the information on the instrument (sticker) matches the local mains voltage. Only use KERN original mains adapter. Using other makes requires consent by KERN. Important: Does the rating match the standard local mains current? ...

  • Page 23: Initial Commissioning

    6.6 Initial Commissioning 6.6.1 Models PNJ As soon as the balance is supplied with energy, the indicator [ ] is displayed. To switch on press the ON/OFF button. All symbols of the display light up shortly. The balance will carry out a self-test The motor noise of the loading system for the internal adjustment weight can be heard.

  • Page 24: Models Pns

    Before connecting or disconnecting of additional devices (printer, PC) to the data interface, always disconnect the balance from the power supply. With your balance, only use accessories and peripheral devices by KERN, as they are ideally tuned to your balance.

  • Page 25: Adjustment

    The balance returns to weighing mode. • At the models with internal adjustment weight (KERN PNJ) the adjustment with external weight is not possible. • The following error messages may be displayed during adjustment.

  • Page 26: Adjustment With Internal Weight (Only Models Pnj)

    6.8.1 Adjustment with internal weight (only models PNJ) The internal adjustment weight is available at all times for starting adjustment via keyboard stroke. Press the F-key and keep pressed until „Aut.CAL“ is displayed. With pressed TARE key, press the F-key, then release both keys at the same time.

  • Page 27: Adjustment With External Weight (Only Models Pns)

    Carry out adjustment as near as possible to the balance’s maximum weight (recommended adjustment weight see chap. 1). Info about adjustment weights can be found on the Internet at: http://www.kern-sohn.com Press the F-key and keep pressed until „CAL“ is displayed.

  • Page 28: Verification

    6.9 Verification General hints According to EU directive 90/384/EEC or 2009/23EG 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 29 Position seals and verification switch Prior to verification, the verification switch must be moved into the verification position. In this position the display shows a bracket around the last display point. After verification the balance is sealed at the indicated positions. Models d = 0.001g Models d = 0.01g / 0.1 g Switch cover / Position verification switch...

  • Page 30: Basic Operation

    7 Basic Operation 7.1 Start-up As soon as the balance is supplied with energy, the indicator [ ] is displayed. To switch on press the ON/OFF button. All symbols of the display light up shortly. The balance is ready for weighing when the weight display appears.

  • Page 31: Zeroing

    7.3 Zeroing In order to obtain optimal weighing results, reset to zero the balance before weighing. Unload the balance. Press the TARE key. Wait until the zero display and the indicator a will appear. During the zeroing procedure a flashing „M“ will be displayed. 7.4 Simple weighing Place goods to be weighed on balance.

  • Page 32: Unity Change

    7.5 Unity change By repeated pressing of the F-key the weight value can be switched over by factory into the following units.  Changes can be set in the menu (function 81.S.u – 85.S.u). Function Description 81.S.u Adjustment of the first weighing unit where the balance has to display the weighing result.
  • Page 33 Call function: Press repeatedly the F-button until „81.Su.“ with the current setting is displayed. Use the F-key to select the weighing unit to be changed e.g. „82.s.u“. Change settings: e.g. function „82.s.u“ [ct] in [lb]: In order to change the current setting of [Karat] „82.Su.14“...

  • Page 34: Weighing With Tare

    7.6 Weighing with tare 7.6.1 Taring The dead weight of any weighing container may be tared away by pressing a button, so that the following weighing procedures show the net weight of the goods to be weighed. Set balance to zero Deposit empty weighing container.

  • Page 35: Multiple Tare

    7.6.2 Multiple tare The taring process can be repeated any number of times, e.g. when adding several components for a mixture (adding). The limit is reached when the taring range capacity is full. Place first good to be weighed on balance. The result is ...

  • Page 36: Menu

    8 Menu 8.1 Menu [function] 8.1.1 Navigation in the menu Access to menu  In weighing mode keep the F-key pressed down until [FWnm] appears on the display. Release button. The first menu item showing the current setting will be displayed. ...

  • Page 37: Menu Overview

    8.1.2 Menu overview Factory settings are marked by *. Description Menu item 1 Hide capacity display 1 Capacity display 1.b.G. 2 Display capacity display 0 Disable tolerance weighing 2 Tolerance weighing 2.SEL Settings see chap. 9.3 1 Enable tolerance weighing see chap.
  • Page 38 7 RS232C-interface 7. I.F. 0 Deactivated 1 6-digit data format 2 7-digit data format Output condition No data output 71.o.c only during setting [7.I.F. 1] or [7.I.F. 2] Continuous data output Continuous data output stable weighing values Output of stable and instable weighing values after pressing PRINT key Output with stable weighing value after previous relief of balance...
  • Page 39 01 [g] 8 Change weighing unit 81.S.u. 14 [ct] see chap. 7.5  [oz] Not available in verified [lb] 85. S.u. weighing balances [ozt] [dwt] [gn] [tl_HK] [tl_Singap. Malays] [tl_Tw] [mom] [tol] [Pcs] After that no more switch-over in another unit will be possible..

  • Page 40: Menu [Function2]

    8.2 Menu [Function2] 8.2.1 Navigation in the menu Access to menu  In weighing mode press the F-key and the TARE-key at the same time and keep it pressed until „Func2“ will be displayed.  When released, the first menu item „1.CrC. 0.“ is displayed.

  • Page 41: Applications

    9 Applications 9.1 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 42 4. Change reference quantity Select the desired reference quantity using the TARE- key, e.g. 30 items. You can choose Important: The higher the reference quantity the higher the counting exactness. 5. Weigh-in reference parts Place as many pieces to add-up as required by the set reference piece number.
  • Page 43 8. Count the items Place load on pan and read the number of pieces. Sample protocol 9. Printing (KERN YKB-01N) The display value will be printed out by connecting an optional printer and pressing the PRINT-key (factory +0000125 PC S setting).

  • Page 44: Percent Determination

    9.2 Percent determination Percentage calculation facilitates weight display in percent related to a reference weight equivalent to 100 %. 1. Call application Press the F-button repeatedly until „%“ is displayed. Factory setting  2. Zeroing/taring Press the TARE-button to set the balance to zero or to tare when using a weighing container.
  • Page 45 The weight of the sample is displayed in percentage in terms of the reference weight. Sample protocol 5. Printing (KERN YKB-01N) The display value will be printed out by connecting an optional printer and pressing the PRINT-key (factory +00033.33 % S setting).

  • Page 46: Weighing With Tolerance Range

    9.3 Weighing with tolerance range Using the application „Weighing with tolerance range“ you can set an upper or lower limit value and thus ensure that the weighed load remains exactly within the set tolerance limits. Limit value inputs are possible at the functions weighing, parts counting and percentage determination.

  • Page 47: Enable Function / Settings In Menu

    9.3.1 Enable function / settings in menu Call up menu: Press the F-key and keep pressed until „Func“ is displayed.  When releasing the button, the first function „1.b.G.„ is displayed with the current setting. Enable function for tolerance weighing „2.SEL. 1“: Press the F-key until „2.SEL.“...
  • Page 48 Use the TARE-key to select the desired setting „22.Li. 0“ The tolerance mark is only displayed above zero range (> 5 d). „22.Li. 1“ Tolerance marker is displayed for the whole range. Use the F-key to select the next menu item “23.Pi. for setting the number of limit points.

  • Page 49: Tolerance Check After Setting The Limit Values By Weighing

    9.3.2 Tolerance check after setting the limit values by weighing Press the SET-key and keep it pressed until the display for setting the lower limit value „L.SET“ appears. The current setting flashes. Place the nominal weight (e.g. 95 g) for the lower limit value and confirm with PRINT-key.
  • Page 50 Load exceeds specified tolerance Printing The display value will be printed out by connecting an optional printer and pressing the Sample protocols PRINT-key (factory setting). (KERN YKB-01N) +100.73 GGS Load within specified Weighing unit “gram” tolerance +093.73 GLS Load within specified tolerance...

  • Page 51: Tolerance Check After Numeric Input Of The Limit Values

    9.3.3 Tolerance check after numeric input of the limit values Press the SET-key and keep it pressed until the display for setting the lower limit value „L.SET“ appears. The current setting e.g. „70.00 g“ flashes.  For numeric input of the nominal weight (e.g. 95 g) press the TARE-key for the lower limit value.
  • Page 52 For menu setting „23.Pi. 2“ wait until the display „H.SET“ for setting the upper limit value appears. The current setting flashes. For numeric input of the nominal weight (e.g. 105 g) press the TARE-key for the upper limit value. The last digit flashes. Numeric input see step 2.

  • Page 53: General Functions

    10 General functions 10.1 Zero-tracking This function is used to tare small variations in weight automatically. In the event that small quantities are removed or added to the material to be weighed, incorrect weighing results can be displayed due to the “stability compensation“.

  • Page 54: Settings For Stability And Response

    10.2 Settings for Stability and Response Exists the possibility to tune the stability of the display and the degree of reaction of the balance to the requirements of certain applications or the environmental conditions. Please note that in general slowing down reaction times result in higher stability of the set data handling, while speeding up reaction times have an influence on the stability deterioration.

  • Page 55: Show Software Status (Only Models Pnj)

    10.3 Show software status Press the F-key and the TARE-key at the same time and keep them pressed until „Func2“ will be displayed. When released, „1.CrC. 0.“ is displayed.  Use the TARE-key to select the setting „1.CrC. 1.“ Press F-key. Wait until the software status of the balance is displayed.

  • Page 56: Switch-Off Background Illumination Of The Display Automatically (Only Models Pnj)

    10.4 Switch-off background illumination of the display automatically When function is enabled background illumination of display will automatically switch off after 1 minute during which there was no change of load or activity. Call up menu: Press the F-key and keep pressed until „Func“ is displayed.

  • Page 57: Setting Date / Time (Only Models Pnj)

    10.5 Setting date / time 10.5.1 Setting time Press the F-key and the TARE-key at the same time and keep them pressed until „Func2“ will be displayed. When released, „1.CrC. 0.“ is displayed.  Press F-key repeatedly until „3.d.St.0“ is displayed. Use the TARE-key to select „3.d.St.1“.
  • Page 58 To change the time press the SET-key, the first digit flashes. To change a digit press the TARE-key. Press the F-key to select a digit. The selected digit is flashing. Store entry. The display changes to the currently set date. ...

  • Page 59: Setting Date

    10.5.2 Setting date Press the F-key and the TARE-key at the same time and keep them pressed until „Func2“ will be displayed. When released, „1.CrC. 0.“ is displayed.  Press F-key repeatedly until „3.d.St.0“ is displayed. Use the TARE-key to select „3.d.St.1“. Press F-key.
  • Page 60 Press F-key. „dAtE“ is displayed, followed by the currently set date.  To change the date press the SET-key, the first digit flashes. To change a digit press the TARE-key. Press the F-key to select a digit. The selected digit is flashing. Store entry The balance returns to weighing mode PNJ_PNS-BA-e-1713...

  • Page 61: Set Date Format (Only Models Pnj)

    10.6 Set date format Press the F-key and keep pressed until „Func“ is displayed. When releasing the button, the first function „1.b.G.„ is  displayed with the current setting. Press repeatedly the F-button until „b.dAt“ appears with the current setting. Use the TARE-key to select the desired setting.

  • Page 62: Rs232C-Interface

    • Connect balance using a suitable cable with the interface of the peripheral device. Faultless operation requires an adequate KERN interface cable. • Communication parameters (baud rate, bits and parity) of balance and peripheral device must match.
  • Page 63 Interface cable: • Balance – PC 9-pole Balance D-SUB9P D-SUB9P Technical data 1. Baud rate 1200*/2400/4800/9600/19200 bps 2. Transmission code ASCII codes (8/7 bits) 3. Bit setting Start bit 1 bit Data bits 8 bits Parity bit 0* / 1 bit Stop bits 1 bit 4.
  • Page 64 Interface parameters  The available interface parameters are only shown when function [7�K.F1] or [7�K.F2� is enabled.  Factory settings are marked by *. Description Menu item Output condition 71. Q.m.� No data output Continuous data output Continuous data output stable weighing values Output of stable and instable weighing values after pressing PRINT key...

  • Page 65: Printer Operation

    11.2 Printer operation Make sure that the balance is connected to the printer interface by a suitable cable and the communication parameters (baud rate, bits and parity) of balance and printer are matching. 11.2.1 Edit an ISO/GLP/GMP-conform adjustment log (only models PNJ) Quality assurance systems require printouts of weighing results as well as of correct adjustment of the balance stating date and time and balance identification.

  • Page 66: Protocol Output With Current Date / Time (Only Models Pnj)

    Sample protocol (KERN YKB-01N): CALIBRATION KERN & SOHN MODEL: PNJ 3000-2M 190001833 DATE: 15.09.2015 TIME: 10:27 *CAL.END NAME: ********************************* 11.2.2 Protocol output with current date / time Press the F-key and keep pressed until „Func“ is displayed. When releasing the button, the first function „1.b.G.„ is ...
  • Page 67 Save / back to weighing mode Confirm setting with SET-key. The balance returns to weighing mode. Sample protocols (KERN YKB-01N) „C.t.o. 0“ „C.t.o. 1“ „C.t.o. 2“ +0075.55 G S 09:48:39 17.09.2015 +0075.55 G S 09:48:39 +0075.55 G S PNJ_PNS-BA-e-1713...

  • Page 68: Data Output

    11.3 Data output 11.3.1 Data transmission format You can adapt the format of data transfer (6 or 7 digits) to your requirements in the menu. Press the F-key and keep pressed until „Func“ is displayed.  When releasing the button, the first function „1.b.G.„ is displayed with the current setting..
  • Page 69 6-digit data format, consisting of 14 characters, including terminator; CR=0DH, LF=0AH (CR=weighing balance reverse / LF=line indent). 7-digit data format, consisting of 15 characters, including terminator; CR=0DH, LF=0AH (CR=weighing balance reverse / LF=line indent). A parity bit can be appended. 6-digit data format of verified models, consisting of 15 characters, including terminator;...

  • Page 70: Description Of Data

    11.3.2 Description of data Signs [P1] (1 character) Code Significance 2 B H Data is 0 or positive 2 D H Data is negative Numeric value of weighing value [D 1 to D7(D 8)] (7 or 8 characters D 1 to D 8 Code Significance 0 - 9...
  • Page 71 Tolerance weighing [S1] (1 character) Code Significance Remarks 1- or 2 end points Load below specified tolerance Load within specified tolerance Goods to be weighed above tolerance limit (SP) 20 H No evaluation result / space character Data status [S2] (1 character) Code Significance Data stabilized *...

  • Page 72: Output Examples

    11.3.3 Output examples Examples 6-digit data format:  Stable weighing value [3000.1g] (SP) (SP)  Instable weighing value [-10.05 mom] (SP) Examples 7-digit data format:  Stable weighing value [3000.1g] (SP) (SP)  Instable weighing value [-10.05 mom] (SP) PNJ_PNS-BA-e-1713...

  • Page 73: Remote Control Instructions

    11.4 Remote control instructions General order format: Consisting of 4 characters including the terminators (CR, LF). Subsequent commands will be detected by the weighing scale. 1. Data output Code (C1) Code (C2) Function Response No data output Continuous data output Continuous data output stable weighing values Output for stable and instable...
  • Page 74 2. Taring / Setting to zero Code (C1) Code (C2) Function Response Taring (>1,5 % Max) A00: Free from error (SP) Zero setting (< 1,5 % E01: Error message Max) A00: Free from error Taring E01: Error message E04: Taring range exceeded A00: Free from error (SP) Zeroing...

  • Page 75: Servicing, Maintenance, Disposal

    Spilled weighing goods must be removed immediately. 12.2 Servicing, maintenance  The appliance may only be opened by trained service technicians who are authorized by KERN.  Before opening, disconnect from power supply. 12.3 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 76: Instant Help

    13 Instant help In case of an error in the program process, briefly turn off the balance and disconnect from power supply. The weighing process must then be restarted from the beginning. Help: Fault Possible cause The displayed weight does •...

  • Page 77: Error Messages

    14 Error messages Error Possible cause message o-Err Weighing range exceeded u-Err Insufficient preload, e. g. missing weighing pan 1-Err Wrong adjustment weight (< 50% max) 2-Err Divergence last external adjustment > 1% 3-Err Weighing pan loaded during adjustment 4-Err Divergence from last internal adjustment >...

  • Page 78: Declaration Of Conformity

    15 Declaration of conformity To view the current EC/EU Declaration of Conformity go to: www.kern-sohn.com/ce The scope of delivery for verified weighing balances (= conformity- rated weighing balances) includes a Declaration of Conformity. PNJ_PNS-BA-e-1713...

This manual is also suitable for:

Pnj 12000-1mPnj 3000-2mPns 600-3Pns 3000-2Pns 12000-1Pnj series ... Show all

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