KERN EMS 300-3 Instruction Manual
School balance
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Summary of Contents for KERN EMS 300-3
- 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 Instruction Manual School balance KERN EMS Version 1.6 2017-10 EMS-BA-e-1716...
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Page 2: Table Of Contents
KERN EMS Version 1.6 2017-10 Instruction Manual School balance Contents Technical data ....................4 Basic Information (General) ................6 Proper use ..........................6 Improper Use ..........................6 Warranty ............................ 6 Monitoring of Test Resources ....................6 Basic Safety Precautions ................7 Pay attention to the instructions in the Operation Manual .......... - Page 3 Menu ......................22 Navigation in the menu ......................22 Menu overview ........................25 Description of individual menu items .................. 25 Auto Off function ..........................25 Auto-Zero function ..........................26 Filter function ............................27 Reset to factory setting ........................28 Service, maintenance, disposal ..............29 Cleaning ..........................
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Page 4: Technical Data
Technical data KERN EMS 300-3 EMS 3000-2 Readability (d) 0,001 g 0,01 g Weighing range (max) 300 g 3000 g Taring range (subtractive) 300 g 3000 g Reproducibility 0,002 g 0,02 g Linearity ±0,005 g ±0,05 g Minimum unit weight at... - Page 5 EMS 12K0.1 KERN EMS 6K0.1 EMS 6K1 EMS 12K1 Readability (d) 0.1 g 0.1 g Weighing range (max) 6 kg 6 kg 12 kg 12 kg Taring range (subtractive) 6 kg 6 kg 12 kg 12 kg Reproducibility 0.1 g 0.1 g...
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Page 6: 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... -
Page 7: Basic Safety Precautions
3 Basic Safety Precautions 3.1 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. 3.2 Personnel training The appliance may only be operated and maintained by trained personnel. -
Page 8: Unpacking, Setup And Commissioning
5 Unpacking, Setup 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 9: Mains Connection
5.3 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. 5.4 Operation using a (rechargeable) battery (optional) Lift-off the battery cover on the lower side of the balance. -
Page 10: Initial Commissioning
If the batteries are run down, "LO" appears in the display. Press ON/OFF-key and replace the batteries immediately. If the balance is not used for a longer time, take out the batteries and store them separately. Leaking battery liquid could damage the balance. If there exists an optional rechargeable battery, it has to be connected in the battery compartment via a separate plug-in socket. -
Page 11: Linearization
5.6 Linearization (only models EMS 300-3, EMS 3000-2) 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. If linearity deviation is discovered during a monitoring of test resources, you can improve this by means of linearization. - Page 12 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 13 Place fifth adjustment weight and acknowledge . The scales will change to zero display. Take away adjustment weight. After a short time F is displayed. Finally the balance will switch off automatically. Now the linearization is concluded successfully. In case of an adjustment error or incorrect adjusting weight the display will show an error message;...
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Page 14: Adjustment
5.7 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 15: Operating Elements
6 Operating elements 6.1 Overview of display 6.2 Keyboard overview Description Function • How to change weighing units • Call up menu UNIT-key (keep key pressed until AF appears) • Confirm settings in the menu • Save and exit menu SET key •... -
Page 16: Operation
7 Operation Press the ON-OFF key. Start-up The balance will carry out a self-test The balance is ready for weighing when the weight display appears. 8.8.8.8 Press ON-OFF button, the display disappears Switching Off Position item to be weighed Weighing ... -
Page 17: 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 18: Weighing Units Switch-Over
Press the UNIT key in the weighing mode to switch-over Weighing units between the available weighing units switch-over 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. -
Page 19: Parts Counting
Parts counting During piece counting parts can either be counted into a container or out of a container. To count a greater number of parts the average weight per part has to be determined with a small quantity (reference quantity). The larger the reference quantity, the higher the counting exactness. -
Page 20: 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 21: 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 flashing. Put a reference weight which corresponds to 100 %. ... -
Page 22: Menu
8 Menu 8.1 Navigation in the menu Access to menu In weighing mode keep the UNIT key pressed until [AF] appears. How to select menu items Using the MODE key the individual menu items can be selected one after the other. - Page 23 2. Change settings of several menu items Acknowledge selected menu item using PR� SET key, the current setting is displayed. (Example) Use the MODE key to change settings. RE CR� Pl PC� Press the TARE key, „Exit“ is displayed. E� T either Acknowledge with SET key (yes), „StorE“...
- Page 24 Save/reject and exit the menu E� T STQRE Save either Any changes carried out are stored by pressing the SET key (yes). The balance returns automatically into weighing mode. Reject To cancel changes, press the MODE/CAL key (no). The balance returns automatically into weighing mode.
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Page 25: Menu Overview
8.2 Menu overview Auto Zero Automatic switch-off function after 3 min without changing load ON (see chapter 8.3) Automatic switch-off function after 3 min without changing load OFF Auto Zero (see chapter 8.3) Filter function StAbiL Fast display Normal display (see chapter 8.3). -
Page 26: Auto-Zero Function
Auto-Zero Use this function to enable or to disable the automatic zero position function In weighing mode keep the UNIT key pressed until [AF] appears. Press the MODE key: „tr“ is displayed. Acknowledge using SET key, the current setting is displayed. ... -
Page 27: Filter Function
Filter function This menu item allows the balance to be set according to specific ambient conditions and measuring purposes. only models: EMS 300-3 EMS 3000-2 In weighing mode keep the UNIT key pressed until [AF] EMS 6K0.1 appears. EMS 12K0.1 ... -
Page 28: Reset To Factory Setting
Reset to factory This function resets all menu items to factory setting setting In weighing mode keep the UNIT key pressed until [AF] appears. Press the MODE key twice: „rSt“ is displayed. Acknowledge using SET key, the current setting is displayed. ... -
Page 29: Service, Maintenance, Disposal
Spilled weighing goods must be removed immediately. 9.2 Service, maintenance The appliance may only be opened by trained service technicians who are authorized by KERN. Before opening, disconnect from power supply. 9.3 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 30: Instant Help
10 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. -
Page 31: Declaration Of -Conformity
11 Declaration of -Conformity To view the current EC/EU Declaration of Conformity go to: www.kern-sohn.com/ce EMS-BA-e-1716...