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KERN EWJ User Manual

KERN EWJ
77 pages
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KERN & Sohn GmbH
www.kern-sohn.com
Ziegelei 1
72336 Balingen-Frommern
Germany
+0049-[0]7433-9933-0
+0049-[0]7433-9933-149
info@kern-sohn.com
Operating instructions
Precision Balance
KERN EWJ
Type TEWJ-B
Version 1.0
2023-09
GB
TEWJ-B-BA-e-2310

Table of Contents

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KERN EWJ Specifications

General IconGeneral
Weighing plate materialstainless steel
InterfaceRS-232
Readability0.1 g
CalibrationExternal
Weighing unitsg, kg, lb, oz
DisplayLCD
Reproducibility0.01 g - 0.1 g

Summary

1 Technical Data

2 Declaration of Conformity

3 Appliance Overview

3.1 Components

Lists physical parts of the balance with their location numbers.

3.2 Operating Elements

Describes the main operational parts of the balance and their functions.

4 Basic Information (General)

4.1 Proper Use

Explains the intended and correct usage of the balance for weighing.

4.2 Improper Use

Lists incorrect usage scenarios that can lead to damage or malfunction.

4.3 Warranty

Outlines conditions under which warranty claims become void.

4.4 Monitoring of Test Resources

Explains the need for regular checks of balance properties and testing weights.

5 Basic Safety Precautions

5.1 Operation Manual & Personnel Training

Emphasizes reading the manual and using trained staff for operation and maintenance.

6 Transport and Storage

6.1 Testing Upon Acceptance & Packaging

Instructions for checking upon receipt and guidelines for packaging for return transport.

7 Unpacking, Installation and Commissioning

7.1 Installation Site, Location of Use

Provides criteria for selecting an optimal location for accurate weighing results.

7.2 Unpacking and Checking

Steps to remove the balance from packaging and verify its contents and condition.

7.3 Assembling, Installation and Levelling

Instructions for physically assembling, installing, and ensuring the balance is level.

7.4 Mains Connection

Details on how to properly connect the balance to the power supply.

7.5 Rechargeable Battery Operation (Factory Option)

Information regarding the use and charging of an optional rechargeable battery.

7.5.1 Load Rechargeable Battery

Specific instructions for charging the rechargeable battery pack.

7.6 Connection of Peripheral Devices

Guidance on connecting external devices like printers or PCs to the balance.

7.7 Initial Commissioning

Steps to perform for the initial setup and operation of the balance.

7.8 Adjustment

Explains the importance and process of adjusting the balance for accurate measurements.

7.8.1 Internal Adjustment < CAL int >

Detailed steps for performing an internal automatic adjustment of the balance.

7.8.2 External Adjustment < CALEHE >

Instructions for external adjustment using pre-defined weights.

7.8.3 External Adjustment with User-Defined Adjustment Weight < cAL Eud >

Steps for performing an external adjustment with a user-specified weight.

7.8.4 Gravitational Constant Adjustment Location < GrAAdu >

Procedure to adjust for the gravitational constant based on location.

7.8.5 Gravitational Constant Place of Location < GrAubE >

Procedure to set the gravitational constant's place of location.

8 Verification

9 Basic Operation

9.1 Turn On/Off

Instructions for switching the balance on and off.

9.2 Simple Weighing

Step-by-step guide for performing a basic weighing operation.

9.3 Zeroing

How to reset the balance to zero before weighing.

9.4 Taring

Procedure for taring the balance to exclude the weight of a container.

9.5 Switch-over Weighing Unit

How to change and enable different weighing units on the balance.

10 Operating Concept

10.1 Application <Weighing>

Details on using the primary weighing application.

10.2 Application <Counting>

Information on utilizing the piece counting application.

10.3 Application < Checkweighing >

Guide to using the checkweighing application for tolerance checks.

11 Menü

11.1 Navigation in the Menu

Explains how to navigate through the balance's menu system.

11.2 Application Menu

Describes how to access and use application-specific menus.

11.3 Setup Menu

Overview of the setup menu for global balance configurations.

11.3.1 Overview < SEEUP >

Detailed breakdown of options available within the setup menu.

12 Interfaces

12.1 RS-232C Interface

Technical details and usage of the RS-232C serial interface.

12.2 USB Connection

Information on connecting the balance via USB to a PC.

12.2.1 Connect PC

Step-by-step instructions for connecting the balance to a PC via USB.

12.3 Bluetooth (Factory Option)

Details on using the optional Bluetooth connectivity.

12.3.1 Add Device

Steps to add a Bluetooth device for connection to the balance.

12.3.2 Determine COM Port Number

How to find the COM port number assigned to the Bluetooth connection.

12.4 KERN Communications Protocol (KERN Interface Protocol)

Explanation of the KCP for controlling the balance via external systems.

12.5 Issue Functions

12.5.1 Add-up Mode < SUM >

How to use the add-up mode to sum multiple weighing values.

12.5.2 Data Output After Pressing the PRINT Button < MANUAL >

Procedure for manual data output via the PRINT button.

12.5.3 Automatic Data Output < Auto >

How to configure automatic data output based on weighing conditions.

12.5.4 Continuous Data Output < cont >

Setting up continuous data output at defined intervals.

12.6 Data Format

13 Servicing, Maintenance, Disposal

13.1 Cleaning

Instructions for cleaning the balance safely and effectively.

13.2 Servicing, Maintenance

Guidelines for servicing and maintenance, requiring authorized personnel.

13.3 Disposal

Information on proper disposal of the balance and packaging.

14 Instant Help for Troubleshooting

14.1 Faults and Possible Causes

Lists common faults and their potential causes for troubleshooting.

15 Error Messages

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