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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 Service manual Precision balance KERN PKP / PKS Version 1.0 1/2012 PKP_PKS-SH-e-1210...
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Page 2: Table Of Contents
KERN PKP / PKS Version 1.0 1/2012 Service Manual Precision balance Table of Contents Basic Information ....................... 3 Introduction ......................... 3 Menu-Map ........................4 Troubleshooting ......................5 Adjustment ........................6 ... -
Page 3: Basic Information
Es dürfen nur Originalersatzteile verwendet werden. 2 Introduction This service manual covers the PKP and PKS series and is edited for the authorized servicing personnel. Note all rights are reserved. Copying any part of this manual is prohibited without our permission. -
Page 4: Menu-Map
3 Menu-Map PKP_PKS-SH-e-1210... -
Page 5: Troubleshooting
4 Troubleshooting Interruption Possible cause • Overload: The scale is overloaded – – – – – – • Underload: Weighing range has been fallen short of • Mechanical defect – – – – – – • Low voltage: Check power supply •... -
Page 6: Adjustment
5 Adjustment The balance must be adjusted at its place of installation before initial use and at regular intervals. A warm-up time of about 4 hours is recommended for stabilisation. To receive accurate measuring values it is also recommended to carry out adjustment as near as possible to the balance’s maximum weight. -
Page 7: Service Menu
6 Service Menu 6.1 How to Enter the Service Menu 1. Turn ON the balance. 2. Press the [MENU] key. 3. Press the [ ↓ ] key, then select [Service] and confirm with the [OK] key. 4. The display appears: 5. -
Page 8: Factory Reset
6.2 Factory Reset Reset the application settings to factory settings, e.g. language, basic settings etc., by pressing the [OK] key to confirm [Factory reset]. 6.3 Factory Adjustment 1. Select [Factory adjust] and confirm with the [OK] key. PKP_PKS-SH-e-1210... - Page 9 2. With empty weighing pan select [Zero adjust] and confirm with the [OK] key. After a short time balance will return into weighing mode automatically. Please wait until the display appears the stability mark 3. Now enter the Service Menu and select [Factory adjust] again, place the maximum weight on the weighing pan and after that select [R.
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Page 10: Linearity Adjustment
6.4 Linearity Adjustment 1. Turn ON the balance. After warming-up time and adjustment, check balance readings in all measuring points. In case of differences make a note. 2. Enter the Service Menu, select [Linear] and confirm with the [OK] key. 3. - Page 11 5. The display appears To select another linearity point, which is outside the permissible tolerances, select [Cor.pnt:], press the [OK] key and inscribe the deviation like described above. 6. To store the new deviation of the correction points press the [SAVE] key. The balance will return into weighing mode automatically.
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Page 12: Geo Value
6.5 Geo Value 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 13: Serial Number
6.6 Serial Number In this category you can view or change the balance serial number. The number was assigned to it in the factory and should never be altered. It is only necessary to change this number after replacing the main board. The serial number is given on the balance model label. -
Page 14: Clear Passwords
6.7 Clear Passwords In this category you can clear all passwords (device code and configuration code). 1. Select [Clear Password] and press the [OK] key. To clear all passwords press the [SAVE] key. The balance will return into weighing mode automatically. 6.8 Remark Please notice the categories [Temp. -
Page 15: Electronics
7 Electronics Accumulator Ground Batt + JTAG Load cell RS-232 + 9-10V Power Ground supply Keyboard overlay PKP_PKS-SH-e-1210...
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