Table of Contents
Related Manuals for KERN PLJ-N
Summary of Contents for KERN PLJ-N
- Page 1 KERN & Sohn GmbH Ziegelei 1 Phone: +49-[0]7433- 9933-0 D-72336 Balingen Fax: +49-[0]7433-9933-149 email: info@kern-sohn.com Internet: www.kern-sohn.com Operating Manual Precision balance KERN PLJ-N Version 3.3 04/2013 PLJ-N-BA-e-1333...
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Page 2: Table Of Contents
KERN PLJ-N Version 3.3 04/2012 Operating Manual Electronic Precision balance Table of Contents Technical Data ....................4 Declaration of Conformity ................7 Basic Information (General) ................8 Proper use ..........................8 Improper Use..........................8 Warranty ............................ 8 Monitoring of Test Resources ....................8 Basic Safety Precautions .................. - Page 3 Manual output ........................65 15.5.2 PC controlled output ......................66 15.5.3 Output of date/time ....................... 66 Error messages .................... 67 Service, maintenance, disposal ..............67 17.1 Cleaning........................... 67 17.2 Service, maintenance ......................67 17.3 Disposal ........................... 67 Instant help ....................68 PLJ-N-BA-e-1333...
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Page 4: Technical Data
206 x 335 x 85 Dimensions glass draught exterior 150 x 150 x 80 shield [mm] interior 140 x 140 x 65 Weighing plate 128 x 128 (stainless steel) [mm] Weight kg (net) 4 kg Underfloor weighing Standard hooks Interface RS 232C PLJ-N-BA-e-1333... - Page 5 Humidity of air max. 80 % (not condensing) Dimensions housing 206 x 335 x 85 B x D x H [mm] Weighing plate 195 x 195 (stainless steel) [mm] Weight kg (net) 4.5 kg Underfloor weighing standard hooks Interface RS 232C PLJ-N-BA-e-1333...
- Page 6 206 x 335 x 85 Dimensions glass draught exterior 150 x 150 x 80 shield [mm] interior 140 x 140 x 65 Weighing plate 128 x 128 (stainless steel) [mm] Weight kg (net) 4 kg Underfloor weighing Standard hooks Interface RS 232C PLJ-N-BA-e-1333...
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Page 7: Declaration Of Conformity
EN 61010-1:2001/AC:2002 21.03.2013 Datum Signatur Date Signature Ort der Ausstellung 72336 Balingen Albert Sauter 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 PLJ-N-BA-e-1333... -
Page 8: Basic Information (General)
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 9: Basic Safety Precautions
4 Basic Safety Precautions 4.1 Pay attention to the instructions in the Operation Manual Carefully read this operation manual before setup and commissioning, even if you are already familiar with KERN balances. Versions in other languages are non-binding translations. The only binding version is the original document in German. -
Page 10: Packaging / Return Transport
5.2 Packaging / return transport Keep all parts of the original packaging for a possibly required return. Only use original packaging for returning. Prior to dispatch disconnect all cables and remove loose/mobile parts. Reattach possibly supplied transport securing devices. PLJ-N-BA-e-1333... - Page 11 Secure all parts such as glass wind screen, weighing platform, power unit etc. against shifting and damage. Mains adapter Weighing pan (128 x 128 mm) Carrier weighing pan Weighing pan (195 x 195 mm) PLJ-N-BA-e-1333...
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Page 12: Unpacking, Setup And Commissioning
6.2 Unpacking Carefully remove the balance from the packaging, remove plastic cover and setup balance at the intended workstation. 6.2.1 Remove the transportation lock Remove the transportation lock on the bottom side of the balance (see fig.) PLJ-N-BA-e-1333... -
Page 13: Placing
Level balance with foot screws until the air bubble of the water balance is in the prescribed circle 6.2.3 Scope of delivery Serial accessories: Balance Mains power supply Operating Manual Draught shield (models providing readability of d = 1mg only) Hook for underfloor weighing PLJ-N-BA-e-1333... -
Page 14: Mains Connection
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 15 2. Time controlled (chpt.7.1) After a set time interval (1 – 12 h) in the menu (P1.5 CALt) has passed the weighing balance will send a message about internal adjustment: PLJ-N-BA-e-1333...
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Page 16: Automatic Adjustment Using Internal Weight
TARE key. This makes the balance return to weighing mode in order to e. g. complete an unfinished measurement. After a further 5 minutes the automatic adjustment will restart and [ appears. PLJ-N-BA-e-1333... -
Page 17: Adjustment Functions "P1 Cal
[internal adjustment] P1.2 ECAL [external adjustment] - not documented P1.3 tCAL [adjustment test] P1.4 ACAL both/nonE/tenno/tinnE [criteria for starting automatic adjustment] P1.5 CALt 1 h ÷ 12h [time setting for starting automatic adjustment] P1.6 CALr YES/no [printout adjustment log] PLJ-N-BA-e-1333... -
Page 18: Internal Adjustment - „Ical
- - - - - - - - Information: Adjustment errors are indicated by an acoustic signal and an 0.0000 g error message will appear on the display. Press and repeat adjustment process. It is possible to cancel adjustment by pressing PLJ-N-BA-e-1333... -
Page 19: Adjustment Test - „Tcal
Press , balance returns to menu SAVE? repeatedly until “SAVE“? appears Press Press to save the changes you made. 0.0000 g Press , to cancel the changes you made. Afterwards the balance automatically jumps back to weighing mode. PLJ-N-BA-e-1333... -
Page 20: Criteria For Starting Automatic Internal Adjustment - „Acal
. Weighing balance returns to P1.4 ACAL menu. SAVE ? repeatedly until “SAVE“? appears. Press The changes you made will be saved by pressing 0,0000 g To cancel changes . Afterwards the balance automatically jumps back to weighing mode. PLJ-N-BA-e-1333... -
Page 21: Time Setting To Start Automatic Internal Adjustment - „Cal T
. Weighing balance returns to P1.5 CALt menu. SAVE ? repeatedly until “SAVE“? appears. Press The changes you made will be saved by pressing 0.0000 g To cancel changes, press the key. Afterwards the balance automatically jumps back to weighing mode. PLJ-N-BA-e-1333... -
Page 22: Printout Adjustment Protocol - „Cal R
P1.3 CALr Models PLS SAVE ? repeatedly until “SAVE“? appears. Press The changes you made will be saved by pressing 0.0000 g Press to cancel the changes you made. Afterwards the balance automatically jumps back to weighing mode. PLJ-N-BA-e-1333... -
Page 23: Verification
The validity for verification of balances in Germany is e.g. 2 years. The legal regulation of the country where the balance is used must be observed! After verification the balance is sealed at the indicated positions. Verification of the balance is invalid without the "seal". PLJ-N-BA-e-1333... - Page 24 Balances with obligation to verify must be taken out of operation if: The weighing result of the balance is outside the error limit. Therefore, in regular intervals load balance with known test weight (ca. 1/3 of the max. load) and compare with displayed value. The reverification deadline has been exceeded. PLJ-N-BA-e-1333...
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Page 25: Operating Elements
Function key (changing parameters after selecting a function) Switch-over key into operating modes Weighing units switch-over Invoke menu Arrow keys for navigation in menu Data export to external device (printer or PC) Confirm/save settings Taring Leave menu Set weight display at zero PLJ-N-BA-e-1333... -
Page 26: User Menu
YES/no [continuous output standard weighing unit] P4.3 Cntb YES/no [continuous output currently set weighing unit] P4.4 rEPL YES/no [manual (press key) or automatic output] P4.5 PStb YES/no [output stable/instable weighing values] P4.6 000.0000 [input minimal weight for automatic output] PLJ-N-BA-e-1333... -
Page 27: Operating Modes
P6.8 YES/no [formulation] P6.9 F iLL YES/no [filter settings] P7 othEr [additional useful functions] P7.1 On/Aut/OFF [display background illumination] P7.2 bLbA no/20/30/40/50/60/70/80/90/100 [Background illumination of display auto-off after x sec.] Key sound P7.3 bEEP “Balance parameters” printout P7.4 PrnS PLJ-N-BA-e-1333... -
Page 28: Navigation In The Menu
To achieve this, press the TARE-key several times until “SAVE“? appears. Any changes carried out are stored by pressing the PRINT key. To cancel changes, press the TARE key. Afterwards the balance automatically jumps back to weighing mode. PLJ-N-BA-e-1333... -
Page 29: Basic Operation
The limit is reached when the total weighing range capacity is full. After removing the taring container the total weight is displayed as negative display. 10.2.2 Delete tare Unload the balance and press the TARE –key; the zero display appears. PLJ-N-BA-e-1333... -
Page 30: Standard Weighing Unit
Press the TARE -button repeatedly until the "SAVE"? inquiry appears. Confirm query by pressing the PRINT-key or cancel by pressing the TARE- key. The balance returns to weighing mode; the display show the set weighing unit. The set weighing unit remains even after disconnection from the mains. PLJ-N-BA-e-1333... -
Page 31: Weighing Units Switch-Over
Never suspend loads that exceed the stated maximum load (max) (danger of breaking) Always ensure that there are no persons, animals or objects that might be damaged underneath the load. NOTICE After completing the underfloor weighing the opening on the bottom of the balance must always be closed (dust protection). PLJ-N-BA-e-1333... -
Page 32: Menu Function "P6 Func" - Operating Modes
If several operating modes are callable via the key, select function “ALL“ by pressing the arrow keys ( ) and confirm by pressing the PRINT-key. The selection as to which Operating modes are deposited in "ALL" is made in the next chapter 11.1. PLJ-N-BA-e-1333... - Page 33 Press arrow keys to change to 10 pcs and confirm by pressing the PRINT-key. "load" appears on the display. Place the reference weight on balance and confirm by pressing the PRINT-key. Remove the reference weight and continue with piece counting. PLJ-N-BA-e-1333...
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Page 34: Settings For Function P6.1 Ffun "All
All activated operating modes can now be called up in Weighing mode by pressing the button. Press the button in Weighing mode and the initial activated function will appear: Select desired function by pressing the arrow keys ( ). PLJ-N-BA-e-1333... -
Page 35: Parts Counting
Call add-up function The current setting is displayed Press the arrow keys ( ), to select the desired reference piece number. Reference piece number 10, 20 or 50 Confirm selected reference piece number by pressing the PRINT-key (e.g. 20) PLJ-N-BA-e-1333... - Page 36 Remove reference weight. The balance is now in parts counting mode counting all units on the weighing plate. for selection ”optional reference piece number“ FrEE − Use the arrow keys to select the digit to be changed − Use the arrow keys to select the number PLJ-N-BA-e-1333...
- Page 37 “Er8 outr“ will appear briefly on the display before the display of the balance returns automatically to weighing mode. − Remove reference weight. The balance is now in parts counting mode counting all units on the weighing plate. Return to weighing mode PLJ-N-BA-e-1333...
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Page 38: Weighing With Tolerance Range
The tolerance marker is only in operation during operating mode tolerance weighing; it is otherwise not visible. The tolerance marker provides the following information: Goods to be weighed below tolerance limit Goods to be weighed within tolerance range Goods to be weighed above tolerance limit Call function PLJ-N-BA-e-1333... - Page 39 − Use the arrow keys to select the digit to be changed, enabled digit will be flashing − Use the arrow keys to select the number − Confirm the entered lower tolerance tag by pressing the PRINT-key. PLJ-N-BA-e-1333...
- Page 40 The balance is now in checkweighing mode Put on goods to be weighed, tolerance control is started Information: If invalid values are entered such as lower tolerance limit greater than upper tolerance limit, the balance will issue the error message and return automatically to weighing mode. Return to weighing mode PLJ-N-BA-e-1333...
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Page 41: Percent Determination
− Confirm by pressing the PRINT key − This weight is adopted as reference (100%). Remove reference weight. The balance is now in percent determining mode Place the load on the balance; percentage value in relation to reference body is shown on display: PLJ-N-BA-e-1333... -
Page 42: Determining The Reference Weight By Entering Numeric Value (Function F4 Prcb)
− Use the arrow keys to select the number − Confirm the entered reference weight by pressing the PRINT-key. Now you can place the test objects onto the weighing plate; the percentage to the reference body is displayed PLJ-N-BA-e-1333... -
Page 43: Density Determination - Functions "D_Co" And "D_Li
11.5 Density determination – functions “d_Co“ and “d_Li“ For procedure of density determination please see the operating instructions "Set density" 11.6 Formulation The formula function allows to add on various components of a mixture. Call function Press repeatedly. PLJ-N-BA-e-1333... - Page 44 The total sum of the ingredients stored up to now is displayed Finish formulation with Remove the mixture from the weighing plate and tare the balance by Other formulation processes can now be carried out in the same manner. PLJ-N-BA-e-1333...
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Page 45: Filter Setting
Return to weighing mode 11.7 Filter setting This function allows the balance to be set according to specific ambient conditions and measuring purposes. Press repeatedly. PLJ-N-BA-e-1333... - Page 46 Return to weighing mode PLJ-N-BA-e-1333...
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Page 47: Menu Function "P2 Glp" - Glp/Iso Protocol
---------------------------------------- Definition of a standard log: Operation: Display: Call menu point „P2 GLP” : 0.0000 g Press P1 CAL P2 GLP Press . The first menu item „P2.1 Usr“ Press P2.1 Usr for entering the user name appears. PLJ-N-BA-e-1333... - Page 48 Data output: KERN Overview data input / data output: After confirming by pressing the balance will return to the P2.1 Usr menu. , the next menu item “P2.2 PrJ“ used to enter the project name P2.2 PrJ appears. PLJ-N-BA-e-1333...
- Page 49 Return to weighing mode: Press the TARE-button repeatedly until the "SAVE"? inquiry appears. Confirm inquiry by pressing the PRINT-button to save changes and to return to Weighing mode. -or- press the TARE-button to return to Weighing mode without saving. PLJ-N-BA-e-1333...
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Page 50: Menu Function "P3 Read" Basic Settings
Return to weighing mode: Press the TARE-button repeatedly until the "SAVE"? inquiry appears. Confirm inquiry by pressing the PRINT-button to save changes and to return to Weighing mode. -or- press the TARE-button to return to Weighing mode without saving. PLJ-N-BA-e-1333... -
Page 51: Rest Position Display
Return to weighing mode: Press the TARE-button repeatedly until the "SAVE"? inquiry appears. Confirm inquiry by pressing the PRINT-button to save changes and to return to Weighing mode. -or- press the TARE-button to return to Weighing mode without saving. PLJ-N-BA-e-1333... -
Page 52: Auto Zero
Return to weighing mode: Press the TARE-button repeatedly until the "SAVE"? inquiry appears. Confirm inquiry by pressing the PRINT-button to save changes and to return to Weighing mode. -or- press the TARE-button to return to Weighing mode without saving. PLJ-N-BA-e-1333... -
Page 53: Changing Readability - Decimal Place
Return to weighing mode: Press the TARE-button repeatedly until the "SAVE"? inquiry appears. Confirm inquiry by pressing the PRINT-button to save changes and to return to Weighing mode. -or- press the TARE-button to return to Weighing mode without saving. PLJ-N-BA-e-1333... -
Page 54: Menu Function "P7 Other"- Additional Useful Functions
Weighing mode. -or- press the TARE-button to return to Weighing mode without saving. Information: Backlighting automatically switched off 10 seconds after achieving a stable weighing value The background light will switch on automatically after the weighing value has changed. PLJ-N-BA-e-1333... -
Page 55: Acoustic Signal For Key Operation
Return to weighing mode: Press the TARE-button repeatedly until the "SAVE"? inquiry appears. Confirm inquiry by pressing the PRINT-button to save changes and to return to Weighing mode. -or- press the TARE-button to return to Weighing mode without saving. PLJ-N-BA-e-1333... -
Page 56: Printing Balance Parameters
14.3 Printing balance parameters Call up menu: Press repeatedly button Press repeatedly button Press the F-key; output of balance parameter is achieved via RS 232 interface. PLJ-N-BA-e-1333... -
Page 57: Data Output Rs 232C "P4 Print
8 data bits, 1 stop bit, no parity bit Baudrate selectable from 2400 - 19200 Baud (factory setting 4800 Baud.) For operation with interface faultless operation is only ensured with the correct KERN – interface cable (max. 2m) Transfer modes: Manually after pressing the PRINT key... -
Page 58: Interface Cable
15.3 Interface cable PC 25-channel Balance PC 9-channel Balance Balance Printer Balance 2 (RxD) 3 (TxD) 4 (DTR) 5 (GND) 6 (DSR) PLJ-N-BA-e-1333... -
Page 59: Menu Function " P4 Print " - Rs 232C Parameter
Return to weighing mode: Press the TARE -button repeatedly until the "SAVE"? inquiry appears. Confirm inquiry by pressing the PRINT-button to save changes and to return to Weighing mode. -or- press the TARE-button to return to Weighing mode without saving. PLJ-N-BA-e-1333... -
Page 60: Continuous Output In Standard Weighing Unit "P4.2 Cnta
Return to weighing mode: Press the TARE -button repeatedly until the "SAVE"? inquiry appears. Confirm inquiry by pressing the PRINT-button to save changes and to return to Weighing mode. -or- press the TARE-button to return to Weighing mode without saving. PLJ-N-BA-e-1333... -
Page 61: Continuous Output In Current Weighing Unit „P4.3 Cntb
Return to weighing mode: Press the TARE -button repeatedly until the "SAVE"? inquiry appears. Confirm inquiry by pressing the PRINT-button to save changes and to return to Weighing mode. -or- press the TARE-button to return to Weighing mode without saving. PLJ-N-BA-e-1333... -
Page 62: Setting Data Output Type: Manual/Automatic „P4.4 Repl
Return to weighing mode: Press the TARE -button repeatedly until the "SAVE"? inquiry appears. Confirm inquiry by pressing the PRINT-button to save changes and to return to Weighing mode. -or- press the TARE-button to return to Weighing mode without saving. PLJ-N-BA-e-1333... -
Page 63: Setting Data Output For Stable/Instable Weighing Value
Return to weighing mode: Press the TARE -button repeatedly until the "SAVE"? inquiry appears. Confirm inquiry by pressing the PRINT-button to save changes and to return to Weighing mode. -or- press the TARE-button to return to Weighing mode without saving. PLJ-N-BA-e-1333... -
Page 64: Entering Minimum Weight For Automatic Output "P4.6 Lo
Return to weighing mode: Press the TARE -button repeatedly until the "SAVE"? inquiry appears. Confirm inquiry by pressing the PRINT-button to save changes and to return to Weighing mode. -or- press the TARE-button to return to Weighing mode without saving. PLJ-N-BA-e-1333... -
Page 65: Communication Protocol / Remote Control Commands
Complete each instruction with CR LF. 15.5.1 Manual output The user may start output manually by pressing the PRINT-key (For settings see chapter 16.4.5, function “P4.5 PStb”, locked for verifiable devices). Data record format: 4 - 12 14 - 16 PLJ-N-BA-e-1333... -
Page 66: Pc Controlled Output
Space, if positive negative sign, if negative Weight: 9 signs, right justified Unit: 3 signs, left justified 15.5.3 Output of date/time Output of date and time is enabled in menu item ”P2 GLP“: PdAt – yes Ptin - yes PLJ-N-BA-e-1333... -
Page 67: Error Messages
Spilled weighing goods must be removed immediately. 17.2 Service, maintenance The appliance may only be opened by trained service technicians who are authorized by KERN. Before opening, disconnect from power supply. 17.3 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 68: Instant Help
Great fluctuations in temperature. Warm-up time was ignored. Electromagnetic fields / static charging (choose different location/switch off interfering device if possible) Should other error messages occur, switch balance off and then on again. If the error message remains inform manufacturer. PLJ-N-BA-e-1333...