User Manual

HCB-BA-defsi-0421
6
• Do not expose the device to extreme dampness for longer
periods of time. Inadmissible bedewing (condensation of air
moisture on the device) can occur if a cold device is taken
into a significantly warmer environment. In this case,
please acclimatise the device for approx. 2 hours at room
temperature after it has been disconnected from the bat-
terys.
• Avoid static charging of the material to be weighed, weigh-
ing container and windshield.
Major display deviations (incorrect weighing results) are possi-
ble if electromagnetic fields occur as well as due to static
charging and instable power supply. It is then necessary to
change the location.
5.2 Unpacking
Carefully remove the balance from its packaging, remove the
plastic wrapping and position the balance in its intended work-
ing location.
5.2.1 List of items supplied
Standard accessories:
• Hanging balance
• Batteries
• Operating instructions
5.3 Battery operation and change
Push off the battery cover on the back of the balance. Insert 3
AAA batteries. Replace the battery cover. When the batteries
are exhausted the message "LO" appears in the balance dis-
play. Press the "ON/OFF" key and replace the batteries imme-
diately. To preserve battery life the balance switches off auto-
matically after 4 minutes if no weighing has taken place.
6 Adjustment
As the acceleration value due to gravity is not the same at
every location on earth, each balance must be coordinated –
in compliance with the underlying physical weighing principle -
to the existing acceleration due to gravity at its place of location
( only if the balance has not already been adjusted to the loca-
tion in the factory). This adjustment process must be carried
out during the initial start-up, after change in location and varia-
tion of surrounding temperature. It is also recommendable to
adjust the balance periodically during weighing operation in
order to obtain exact measured values.
6.1 Adjusting
Using a precision weight, the accuracy of the balance can be
checked at any time and adjusted.
Adjustment procedure:
Check that the surrounding conditions are stable. A short
warm-up time of about 1 minutes are recommended for stabi-
lisation.
Press “TARE” key approx. 15 seconds, ”CAL” and then the
exact weight of the adjusting weight will appear at the display.
Hang on the adjusting weight on the hook of the hanging bal-
ance. “ F” will appear a short time later, and then turn off.
In case of an adjusting error or a wrong adjusting weight “ E”
appears in the display.
KERN
20K10 20K50 50K20 50K100
Adjusting weight
(not included)
10 kg
(M3)
10 kg
(M3)
20 kg
(M3)
20 kg
(M3)
KERN
99K50 100K200 200K100 200K500
Adjusting weight
(not included)
50 kg
(M3)
50 kg
(M3)
100 kg
(M3)
100 kg
(M3)
7 Operation Instruction
7.1 Weighing
• The balance is switched on by pressing the "ON/OFF" key.
• The balance display shows "0.0“.
• Hook the object being weighed.
• The steady reading is the weight of the object.
• If the weighing object is heavier than the weighing range the
display indicates "E“ (=Overload).
• The balance is switched off by pressing the "ON/OFF“ key
once.
7.2 Taring
• Switch the balance on with "ON/OFF" key and wait for "0.0“
to appear in the display. Hang the tare load and press the
"TARE" key.
• The balance display becomes "0.0“. The weight of the
tare load has however been memorised internally. The
item to be weighed can now be placed in the tare con-
tainer and the weight can be read off.
7.3 Data HOLD
• When the “HOLD” key is pressed, the display value (even
when the weight values vary) shown on the display will be
held 5 seconds.
8 Maintenance, upkeep, disposal
8.1 Cleaning
Only use a cloth dampened with mild suds and not aggressive
cleaning agents (solvents or similar). Please ensure that fluids
are not able to get into the device and rub off using a clean,
soft cloth. Loose sample residue/powder can be removed
carefully using a brush or hand vacuum cleaner.
8.2 Maintenance, upkeep
The device may only be opened by trained service engineers
authorised by KERN.
8.3 Disposal
The operating company shall dispose of the packaging and the
device in compliance with the valid national or regional law of
the operating location.