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KERN EW User Manual

KERN EW
46 pages
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KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen-Frommern
E-Mail: info@kern-sohn.com
Tel: 0049-[0]7433- 9933-0
Fax: 0049-[0]7433-9933-149
Internet: www.kern-sohn.com
GB
Service Manual
Electronic Precision Balances
Page 2
KERN EW · EW-C · EG (N)
Version 2.2 01/2007
- 1 - EW_EW-C_EG_N-SH-e-0722

Questions and Answers:

KERN EW Specifications

General IconGeneral
DisplayLCD
Minimum part weight at piece counting (Laboratory scale)0.1 g
Weighing plate materialstainless steel
Measuring systemStrain gauge
InterfaceRS 232
CalibrationExternal calibration
Power SupplyAC adapter or 4xAA batteries
Unitsg lb oz

Summary

1 TOTAL VIEW

1.1 Total View Of EW Type - 220-12000g

Overview of EW type models with capacities up to 12000g.

1.2 Total View Of EG Type - 220-620g, 2200g, 4200g

Overview of EG type models with capacities up to 4200g.

2 ELECTRONIC CONSTRUCTION

2.1 Block Diagram

Visual representation of electronic components and connections.

2.2 Whole Wiring

Complete wiring schematic for the electronic system.

3 TROUBLESHOOTING

3.1 Troubleshooting Procedure

Systematic steps for diagnosing and resolving issues.

3.2 Trouble shooting Table

Lists common symptoms, causes, and remedies.

4 ADJUSTMENTS AND SETTINGS

4.1 Span Calibration (CAL)

Procedure for calibrating the scale's span.

4.3 Corner Error Adjustment

Steps to adjust for corner errors on the weighing pan.

4.5 Resetting Address Data (Coefficients)

Procedure for resetting stored address data or coefficients.

4.7 Linearity Adjustment

Steps to perform linearity adjustment on the scale.

5 PARTS REPLACEMENTS

5.1 How to remove the case

Instructions on how to detach the scale's outer casing.

5.3 Sequence Of Mechanism Unit Replacement

Overview of the procedure for replacing the mechanism unit.

5.6 Sequence Of The AJDP Circuit Board Replacement

Overview of the procedure for replacing the AJDP circuit board.

6 INSTALLATION OPTIONS

6.1 Installation Of Battery Option

Instructions for installing an optional battery.

7 PARTS LIST

7.1 EW 220-1200

Parts list for the EW 220-1200 model.

7.2 EW 2200-12K

Parts list for the EW 2200-12K model.

7.3 EW-C / EW 120-4 NM

Parts list for EW-C and EW 120-4 NM models.

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