KERN & SOHN EMB 500-1GN User Manual

KERN & Sohn GmbH

Ziegelei 1

E-Mail: [e-mail]

Tel: +49-[0]7433- 9933-0

Internet: www.kern-sohn.com

Operating Instructions
Precision balance

KERN EMB 500-1GN

Version 1.0

05/2014

GB

D-72336 Balingen

Fax: +49-[0]7433-9933-149

EMB-BA-e-1410

KERN EMB 500-1GN

Precision balance

GB

Version 1.0 05/2014

Operating Instructions

Table 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 .................................................................................. 4

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 / return t ransport ...................................................................................... 5

5 Unpacking, installation and comm issioning ............................................... 6

5.1 Place of installation, place of use ............................................................................... 6

5.2 Unpacking.................................................................................................................. 7

5.2.1 Installation ................................................................................................................................... 7

5.2.2 List of items supplied .................................................................................................................. 7

5.3 Battery Operation....................................................................................................... 7

5.4 Mains supply .............................................................................................................. 7

5.5 Initial start -up ............................................................................................................. 7

5.6 Adjustment................................................................................................................. 8

5.7 Underfloor weighing ................................................................................................... 9

6 Operation ...................................................................................................... 10

6.1 Overview of the keypad ............................................................................................10

6.2 Operating instructions ...............................................................................................10

6.2.1 Weighing ................................................................................................................................... 10

6.2.2 Taring........................................................................................................................................ 10

6.2.3 Units .......................................................................................................................................... 11

6.2.4 Dosage und Zero-tracking ........................................................................................................ 11

6.2.5 AUTO-OFF function .................................................................................................................. 12

6.2.6 Reset function ........................................................................................................................... 13

7 Maintenance, upkeep, disposal .................................................................. 14

7.1 Cleaning ...................................................................................................................14

7.2 Maintenance, upkeep ...............................................................................................14

7.3 Disposal ....................................................................................................................14

8 Troubleshooting........................................................................................... 15

9 Declaration of Conformity ........................................................................... 16

EMB-500-1GN-BA-e-1410 2

1 Technical data

500-1GN

(M2)

(in battery mode)

KERN

Readout (d) 0,1 g
Weighing range (Max) 500 g
Reproducibility 0,1 g
Linearity ± 0,2 g

EMB

Adjusting weight (not includ­ed) (class)

Stabilization time 2-3 sec.
AUTO-OFF-Function

Units g, oz, ozt, dwt
Operating temperature +5°C… +35°C

Air humidity max. 80 % (non-condensing)
Case (W x D x H) mm 170x240x39
Weighing plate mm Ø 150
Battery supply (standard) 9V Block
Mains adapter (optional) 300 mA / 9V
Underfloor weighing Hanging loop below the cover plate as standard

500g

3 min.

EMB-500-1GN-BA-e-1410 3

2 Fundamental information (ge ne ral)

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

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).

EMB-500-1GN-BA-e-1410 4

3 Fundamental safety information

3.1 Observe the information in the operating instructions

Carefully read this operation manual before setup and com­missioning, even if you are already familiar with KERN balanc-

3.2 Staff training

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

es.
Versions in other languages are non-binding translations.

The only binding version is the original document in German.

4 Transport and stor a ge

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 / return transport

 Keep all parts of the original packaging for a possibly required re-

turn.

 Only use original packaging for returning.
 Prior to dispatch disconnect all cables and remove loose/mobile

parts.

 Reattach possibly supplied transport securing devices.
 Secure all parts such as the glass wind screen, the weighing plat-

form, power unit etc. against shifting and damage.

EMB-500-1GN-BA-e-1410 5