Table of Contents
Related Manuals for KERN PCB 250-3
Summary of Contents for KERN PCB 250-3
- 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 Manual Precision balance KERN PCB Version 1.8 05/2017 PCB-BA-e-1718...
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Page 2: Table Of Contents
KERN PCB Version 1.8 05/2017 Operating Manual Compact 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 Menu ......................23 Navigation in the menu ......................23 Menu overview ........................26 Description of individual menu items .................. 28 Weighing Units ............................ 28 Dosing and Zero-tracking ........................29 Selection adjustment weight ......................29 Filter ..............................31 Display background illumination ....................... 32 Animal weighing function ........................
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Page 4: Technical Data
Technical Data KERN PCB 100-3 PCB 200-2 PCB 250-3 PCB 350-3 Readability (d) 0.001 g 0.01 g 0.001 g 0.001 g Weighing range (max) (d) 100 g 200 g 250 g 350 g Taring range (subtractive) 100 g 200 g... - Page 5 KERN PCB 1000-1 PCB 1000-2 PCB 2000-1 PCB 2500-2 Readability (d) 0.1 g 0.01 g 0.1 g 0.01 g Weighing range (max) (d) 1000 g 1000 g 2000 g 2500 g Taring range (subtractive) 1000 g 1000 g 2000 g...
- Page 6 KERN PCB 3500-2 PCB 6000-1 PCB 6000-0 PCB 10000-1 Readability (d) 0.01 g 0.1 g 0.1 g Weighing range (max) (d) 3500 g 6 kg 6 kg 10 kg Taring range (subtractive) 3500 g 6 kg 6 kg 10 kg Reproducibility 0.02 g...
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Page 7: Declaration Of Conformity
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. PCB-BA-e-1718... -
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: Unpacking/Erection
• Windscreen (PCB 100-3, PCB 250-3, PCB 350-3) 6.3 Mains connection Power is supplied via the external mains adapter. The stated voltage value must be the same as the local voltage. Only use original KERN mains adapters. Using other makes requires consent by KERN. PCB-BA-e-1718... -
Page 11: Operation Using A (Rechargeable) Battery (Optional)
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 12: Initial Commissioning
Strictly observe hints in chapter Adjustment. 6.7 Linearisation (only models PCB 250-3, PCB 350-3, PCB 2500-2, , PCB 3500-2,) Linearity shows the greatest deviation of a weight display on the scale to the value of the respective test weight according to plus and minus over the entire weighing range. - Page 13 Press repeatedly until LinEAr is displayed Ensure that there are no objects on the weighing pan. Start linearisation with . The value of the first adjustment weight will be displayed. (example) Place adjustment weight and acknowledge by .
- Page 14 Place fifth adjustment weight and acknowledge . The scales will change to zero display. Take away adjustment weight. After a short time CAL F is displayed. Finally the balance will switch off automatically. Now the linearization is concluded successfully.
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Page 15: Adjustment
6.8 Adjustment As the acceleration value due to gravity is not the same at every location on earth, each balance must be coordinated - in compliance with the underlying physical weighing principle - to the existing acceleration due to gravity at its place of location (only if the balance has not already been adjusted to the location in the factory). -
Page 16: Underfloor Weighing
6.10 Underfloor weighing Objects unsuitable for placing on the weighing scale due to size or shape may be weighed with the help of the flush-mounted platform. Proceed as follows: • Switch off the balance • Open closing cover at the balance bottom. •... -
Page 17: Operation Elements
Operation elements 7.1 Overview of display 7.2 Keyboard overview Designation Function • Calculate weighing data via interface PRINT-key • Call up menu (keep key pressed until UNIT appears) • Confirm settings in the menu SET key • Save and exit menu •... -
Page 18: Basic Operation
8 Basic Operation Press ON button. Start-up The balance will carry out a self-test The balance is ready for weighing when the weight display appears. O F F Press OFF button, the display disappears Switching Off O F F ... -
Page 19: Pre-Tare-Function
Weigh the material, the net weight will be indicated. 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 whole weighing range is exhausted. The weight of the weighing container will be displayed as a minus number after removing the weighing container. -
Page 20: Plus/Minus Weighings
For example unit weight control, fabrication control etc. Plus/minus weighings Put the nominal weight on the weighing plate and tare using the TARE button. TA R E Remove the nominal weight Put the test objects subsequently on the weighing plate, the respective deviation from the nominal weight is displayed with the respective sign to „+“... -
Page 21: Net-Total Weighings
• Back to weighing mode by pressing the MODE button. • Error message „Er 1“ Piece below minimum weight of piece (See chpt. 1 “Technical specifications“): Press MODE key and restart reference determination. • Taring The tare vessels can also be used for piece counting. Before starting piece counting use the TARE button to tare out the container. -
Page 22: Percent Determination
Percentage calculation facilitates weight display in percent Percent related to a reference weight equivalent to 100 %. determination In weighing mode press MODE key repeatedly, until [100 %] is displayed. M O D E C A L Put a reference weight which corresponds to 100 %. ... -
Page 23: Navigation In The Menu
9 Menu 9.1 Navigation in the menu Access to menu P R IN T In weighing mode keep the PRINT key pressed until [Unit] appears. How to select menu items Using the MODE key the individual menu M O D E C A L items can be selected one after the other. - Page 24 2. Change settings of several menu items Acknowledge selected menu item using S E T SET key, the current setting is displayed. Use the MODE key to change settings. M O D E C A L Press the TARE key, „Exit“ is displayed. TA R E Either Acknowledge with SET key (yes),...
- Page 25 Save/reject and exit the menu S E T Either Save S E T Any changes carried out are stored by pressing the SET key (yes). The balance returns automatically into weighing mode. Reject P R IN T To cancel changes, press the PRINT key (no).
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Page 26: Menu Overview
9.2 Menu overview Description of function Function Parameter Description of options Weighing units switching UNIT Gram over (see chapter 9.3). Kilogram (dependent on model) Pound Ounce Troy ounce Tael Hongkong Tael Taiwan Grain (dependent on model) Pennyweight (dependent model) Momme Tola Carat (dependent on model) Freely selectable factor... - Page 27 Baud rate bAUd 19200 (see chapter 9.4). 9600* 4800 2400 1200 Auto off Automatic switch-off function (battery operation), see after 3 min without changing chap. 6.4 load ON Automatic switch-off function after 3 min without changing load OFF Auto Zero (see chapter 9.3) Selection adjustment weight (see chapter 9.3)
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Page 28: Description Of Individual Menu Items
9.3 Description of individual menu items Weighing Units In weighing mode keep the PRINT key pressed until [Unit] appears. Press SET key, the selected unit is displayed. Use the MODE key to select between the different units (see following table). -
Page 29: Dosing And Zero-Tracking
Use the SET key to confirm selection. Selection In the model series KERN FKB_A, the adjustment weight can be selected from three pre-set nominal values (approx.1/3; 2/3; max) adjustment (refer also to following table, factory setting with grey weight background). - Page 30 PCB 100-3 PCB 200-2 PCB 250-3 PCB 350-3 PCB 1000-1 200g 100g 100g 150g 500g 150g 150g 250g 700g 200g 300g 100g 200g 1000g 250g 350g PCB 1000-2 PCB 2000-1 PCB 2500-2 PCB 3500-2 PCB 6000-0 200g 500g 500g 500g...
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Page 31: Filter
This menu item allows the balance to be set according to Filter specific ambient conditions and measuring purposes. only models: PCB 100-3 PCB 250-3 PCB 350-3 PCB 1000-2 PCB 2500-2 PCB 3500-2 PCB 6000-1 PCB 10000-1 In weighing mode keep the PRINT key pressed until [Unit] appears. -
Page 32: Display Background Illumination
Display background illumination In weighing mode keep the PRINT key pressed until [Unit] appears. Press the MODE button several times until „bl“ is displayed. Acknowledge using SET key, the current setting is displayed. Select the desired settings by pressing the MODE key. Background illumination Contrastful display which can bl on... -
Page 33: Animal Weighing Function
Animal The animal weighing function can be applied for busy weighing. During a defined period the average value of the weighing results weighing is formed. function The more unquiet the weighed item, the longer the period should be selected. In weighing mode keep the PRINT key pressed until [Unit] appears. -
Page 34: Reset To Factory Setting
Reset to This function resets all balance settings to factory setting. factory setting In weighing mode keep the PRINT key pressed until [Unit] appears. Press the MODE button several times until „rSt“ is displayed. Acknowledge using SET key, the current setting is displayed. ... -
Page 35: Interface Parameters
9.4 Interface parameters Data output is carried out via interface RS 232 C. General The previous condition for the data transfer between balance and a peripherical device (e.g. printer, PC ...) is that the appliances are set to the same interface parameters (e.g. -
Page 36: Printout
printout Using this function data are selected which are to be sent via the RS232C (not valid for data transfer mode BAPr ). In weighing mode keep the PRINT key pressed until [Unit] appears. Press the MODE key several times until „LAPr“ is displayed. ... -
Page 37: Baud Rate
Baud rate selectable at 1200, 2400, 4800 , 9600 and 19200 baud • Miniature plug-in necessary (9 pole D-Sub) • For operation with interface faultless operation is only ensured with the correct KERN – interface cable (max. 2m) 10.2 Pin allocation of balance output bushing: Front view: Pin 2: Transmit data... -
Page 38: Explanation Of The Data Transfer
10.3 Explanation of the data transfer Pr PC: Press the PRINT key, at stable weight the format is transferred from LAPR. a. Format for stable values for weight/quantity/percentage 10 11 12 13 14 15 16 17 CR LF b. Format in case of fault 10 11 12 13 14 15 16 17 CR LF... - Page 39 rE Cr: The remote control commands s/w/t are sent from the remote control unit to the balance as ASCII code. After the balance having received the s/w/t commands, it will send the following data. Take into account that the following remote control commands must be sent without a subsequent CR LF.
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Page 40: Output On Bar Code Printer
The printer format is stored in the printer, i.e. in case of a failure the printer cannot be changed with a new one from factory, previously it is necessary that KERN installs the respective software. The Zebra printer and the balance must be connected to the delivered interface cable when they are switched off. -
Page 41: Instant Help
12 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 balance is not switched on. The displayed weight does not glow.