KERN & SOHN ECB 50K20 User Manual

KERN & Sohn GmbH
Ziegelei 1 D-72336 Balingen E-Mail: info@kern-sohn.com
Tel: +49-[0]7433- 9933-0 Fax: +49-[0]7433-9933-149 Internet: www.kern-sohn.com
Platform scale
KERN ECB
Version 1.4 08/2011 GB
ECB-BA-e-1114
GB
KERN ECB
Version 1.4 08/2011
Operating instruction Platform scale
Tabel of contents:
1 Technical data................................................................................................ 3
2 Fundamental information (general).............................................................. 4
2.1 Intended use ............................................................................................................................. 4
2.2 Inappropriate use ..................................................................................................................... 4
2.3 Guarantee..................................................................................................................................4
2.4 Monitoring the test substances.............................................................................................. 5
3 Fundamental safety information................................................................... 5
3.1 Observe the information in the operating instructions........................................................5
3.2 Staff training ............................................................................................................................. 5
4 Transport and storage................................................................................... 5
4.1 Acceptance check.................................................................................................................... 5
4.2 Packaging.................................................................................................................................. 5
5 Unpacking, installation and commissioning............................................... 6
5.1 Place of installation, place of use........................................................................................... 6
5.2 Unpacking the Balance............................................................................................................6
5.2.1 Installation .................................................................................................................................. 6
5.2.2 Package volume.........................................................................................................................7
5.3 Mains supply/ Battery operation............................................................................................. 7
5.3.1 Mains supply............................................................................................................................... 7
5.3.2 Battery operation........................................................................................................................ 7
5.4 Initial start-up............................................................................................................................9
5.5 Adjustment................................................................................................................................9
5.6 Adjusting................................................................................................................................... 9
6 Operation...................................................................................................... 10
6.1 Weighing ................................................................................................................................. 10
6.2 Taring....................................................................................................................................... 10
6.3 Rear illuminated display........................................................................................................11
6.4 Dosage und Zero-tracking.....................................................................................................12
6.5 AUTO-OFF function................................................................................................................ 13
6.6 Reset function......................................................................................................................... 14
7 Maintenance, upkeep, disposal.................................................................. 15
7.1 Cleaning .................................................................................................................................. 15
7.2 Maintenance, upkeep.............................................................................................................15
7.3 Disposal................................................................................................................................... 15
8 Troubleshooting........................................................................................... 16
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ECB-BA-e-1114

1 Technical data

KERN ECB10K5 ECB20K10 ECB50K20
Readout (d) 5 g 10 g 20 g Weighing range (max) 10 kg 20 kg 50 kg Taring range (subtractive) 10 kg 20 kg 50 kg
Reproducibility Linearity
Recommended adjustment weight, not added (class)
Stabilisation time (typical) 2 sec. Operating temperature + 5°C ….+ 35°C Humidity max. 80 % (non-condensing) Size (W x D x H) mm 320 x 300 x 60 Weighing plate mm 320 x 260 Weight kg (net) 1,7
5 g 10 g 20 g
± 10 g ± 20 g ± 0,4 kg
5 kg
(M3)
10 kg
(M3)
20 kg
(M3)
ECB-BA-e-1114
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2 Fundamental information (general)

2.1 Intended use

The balance you have acquired serves to determine the weighing value of the mate­rial to be weighed. It is intended to be used as a “non-automatic“ balance, i.e. the material to be weighed is manually and carefully placed in the centre of the weighing plate. The weighing value can be read off after a stable weighing value has been ob­tained.

2.2 Inappropriate use

Do not use the balance for dynamic weighing. In the event that small quantities are removed or added to the material to be weighed, incorrect weighing results can be displayed due to the “stability compensation“ in the balance. (Example: Slowly drain­ing fluids from a container on the balance.) Do not leave a permanent load on the weighing plate. This can damage the measur­ing equipment. Be sure to avoid impact shock and overloading the balance in excess of the pre­scribed maximum load rating (max.), minus any possible tare weight that is already present. This could cause damage to the balance. Never operate the balance in hazardous locations. The series design is not explo­sion-proof. Structural alterations may not be made to the balance. This can lead to incorrect weighing results, faults concerning safety regulations as well as to destruction of the balance. The balance may only be used in compliance with the described guidelines. Varying areas of application/planned use must be approved by KERN in writing.

2.3 Guarantee

The guarantee is not valid following
- non-observation of our guidelines in the operating instructions
- use outside the described applications
- alteration to or opening of the device
- mechanical damage and damage caused by media, liquids
- natural wear and tear
- inappropriate erection or electric installation
- overloading of the measuring equipment
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ECB-BA-e-1114

2.4 Monitoring the test substances

The metrology features of the balance and any possible available adjusting weight must be checked at regular intervals within the scope of quality assurance. For this purpose, the answerable user must define a suitable interval as well as the nature and scope of this check. 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. Test weights and balances can be adjusted quickly and at a reasonable price in KERN’s accredited DKD calibration laboratory (return to na­tional normal).

3 Fundamental safety information

3.1 Observe the information in the operating instructions

Please read the operating instructions carefully before erecting and commissioning, even if you already have experience with KERN balances.

3.2 Staff training

The device may only be operated and looked after by trained members of staff.

4 Transport and storage

4.1 Acceptance check

Please check the packaging immediately upon delivery and the device during un­packing for any visible signs of external damage.

4.2 Packaging

Please retain all parts of the original packaging in case it should be necessary to re­turn items at any time. Only the original packaging should be used for return consignments. Before despatch, disconnect all attached cables and loose/movable parts. Secure all parts, e.g. power unit etc., to prevent slipping and damage.
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