User Manual

HCB-BA-defsi-0421
5
GB Operating Instructions Hanging Balances
1 Technical Data
KERN
20K10 20K50 50K20 50K100
Readout
10 g 50 g 20 g 100 g
Weighing range
20 kg 20 kg 50 kg 50kg
KERN
99K50 100K200 200K100 200K500
Readout
50 g 200 g 100 g 500 g
Weighing range
99 kg 100 kg 200 kg 200 kg
2 Fundamental information (general)
2.1 Intended use
The balance you have acquired serves to determine the weigh-
ing 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 attached at the balance. 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: Slow flow of
liquids from a container suspended from the balance).
Do not suspend a permanent load from the balance This can
damage the measuring equipment (Risk of fracture). Be sure
to avoid impact shock and overloading the balance in excess of
the prescribed maximum load rating (max.), minus any possi-
ble tare weight that is already present. This could cause dam-
age to the balance(danger of fracture).
Important:
- Always make sure that there are no people or materi-
als below the load that could be injured or damaged!
- The balance is not suitable for weighing people.
- The balance does not comply with the medical prod-
uct law (MPG).
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 re-
sults, faults concerning safety regulations as well as to destruc-
tion of the balance. The balance may only be used in compli-
ance with the described guidelines. Varying areas of applica-
tion/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 instruc-
tions
- 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 avail-
able 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 dam-
age.
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 consign-
ments. Before despatch, disconnect all attached cables and
loose/movable parts. Apply any intended transport security
devices. Secure all parts, e.g. glass windshield, weighing plate,
power unit etc., to prevent slipping and damage.
5 Unpacking, installation and commissioning
5.1 Place of installation, place of use
The balance is constructed in such a way that reliable weighing
results can be achieved under normal application conditions.
By selecting the correct application location for your balance,
you will be able to work quickly and precisely.
Therefore please observe the following at the application
location:
• Avoid extreme heat as well as temperature fluctuation
caused by installing next to a radiator or in the direct
sunlight;
• Protect the balance against direct draughts due to open
windows and doors;
• Avoid jarring during weighing;
• Protect the balance against high humidity, vapours and
dust;