KERN EFS Series Operating Instructions Manual

KERN EFS Series Operating Instructions Manual

Precision balance

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Operating instructions
Precision balance
KERN EFS
Type TEFS-A
Version 1.1
2022-04
GB
KERN & Sohn GmbH
Ziegelei 1
72336 Balingen-Frommern
Germany
www.kern-sohn.com
+0049-[0]7433-9933-0
+0049-[0]7433-9933-149
info@kern-sohn.com
EFS-BA-e-2211

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Summary of Contents for KERN EFS Series

  • Page 1 KERN & Sohn GmbH www.kern-sohn.com Ziegelei 1 +0049-[0]7433-9933-0 72336 Balingen-Frommern +0049-[0]7433-9933-149 Germany info@kern-sohn.com Operating instructions Precision balance KERN EFS Type TEFS-A Version 1.1 2022-04 EFS-BA-e-2211...
  • Page 2: Table Of Contents

    KERN EFS Version 1.1 2022-04 Operating instructions - Precision Balance Contents Technical data ....................3 Basic Information (General) ................5 Proper use ......................... 5 Improper Use ......................5 Warranty ........................5 Monitoring of Test Equipment ..................6 Basic Safety Precautions ................6 Pay attention to the instructions in the Operation Manual ..........
  • Page 3: Technical Data

    1 Technical data KERN EFS 200-1 EFS 500-2 EFS 600-1 Type/Article number TEFS 220-1-A TEFS 500-2-A TEFS 620-1-A Readability (d) 0.1 g 0.01 g 0.1 g Weighing range (max) 220 g 500 g 620 g Reproducibility 0.2 g 0.02 g 0.2 g...
  • Page 4 KERN EFS 2000-0 EFS 3000-1 EFS 5000-0 Type/Article number TEFS 2200-0-A TEFS 3000-1-A TEFS 5200-0-A Readability (d) 0.1 g Weighing range (max) 2200 g 3000 g 5200 g Reproducibility 0.2 g Linearity ± 3 g ± 0.3 g ± 3 g...
  • Page 5: Basic Information (General)

    The structure of the balance may not be modified. This may lead to incorrect weighing results, safety-related faults and destruction of the balance. The balance may only be used according to the described conditions. Other areas of use must be released by KERN in writing. 2.3 Warranty Warranty claims shall be voided in case:...
  • Page 6: Monitoring Of Test Equipment

    (www.kern-sohn.com with regard to the monitoring of balance test equipment 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 7: Unpacking, Installation And Commissioning

    5 Unpacking, Installation and Commissioning 5.1 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 8: Unpacking And Checking

    5.2.1 Placing The balance must be installed in a way that the weighing plate is exactly in horizontal position. 5.2.2 Scope of delivery Serial accessories: KERN EFS • Balance • Batteries (4 x 1.5V AA) • Operating instructions 5.2.3 Stackability...
  • Page 9: Overview Of Displays

    5.3 Overview of displays Battery display Bar graph Net weight Negative value Balance set at zero Stability display Weighing Units 5.4 Keyboard overview • Switch-on balance (press button shortly) • Switch off balance (press button long time) • In menu: Confirm menu item •...
  • Page 10: Battery Operation (Standard)

    Leaking battery liquid could damage the balance. 5.6 Mains connection (option) Power is supplied via the external mains adapter KERN YKA-27 (optional). 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.
  • Page 11: Adjustment

    5.8 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 12: Operation

    6 Operation 6.1 Weighing Start balance by pressing . The balance carries out a selftest and then changes to the zero display. If the weighed material is heavier than the weighing range, in the display appears (=overlaod) The balance is switched off by pressing for a long time.
  • Page 13: Weighing Units

    6.3 Weighing Units The balance can display different units. Switch-over takes place in the menu under menu item „unit“. Display Conversion factor indication 1 g = Gram * Ounce 0.035273962 Troy ounce 0.032150747 Pennyweight 0.643014931 Grain 15.4324 Pound 0.00220462 7 Menu 7.1 Navigation in the menu Access to menu ...
  • Page 14: Menu Overview

    7.2 Menu overview unit Weighing Units: dwt, g, gn, oz, ozt, lb cALE Adjustment with specified adjustment weight Auto-Zero Tracking Auto off selectable after 30, 60, 180 sec., off rESEt Back to factory setting EXit Return to weighing mode 7.3 Description of individual menu items 7.3.1 Weighing units switch-over Condition: Menu item „unit“...
  • Page 15: Auto-Off Function

    Enable/disable zero tracking: Condition: Menu item „tr“:  Confirm menu item by  Press to select between the following settings: Display Adjustment „on“ Auto-Zero switched on „oFF“ Auto-Zero switched off  Acknowledge desired selection by . Press to go till to the menu item „Exit“...
  • Page 16: Reset Function

    8.2 Servicing, maintenance The appliance may only be opened by trained service technicians who are authorized by KERN. Before opening, disconnect from power supply. 8.3 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 17: Instant Help For Troubleshooting

    9 Instant help for troubleshooting 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.
  • Page 18: Declaration Of Conformity

    10 Declaration of conformity The current EC/EU Conformity declaration can be found online in: www.kern-sohn.com/ce EFS-BA-e-2211...

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