KERN FCB User manual

Operating Manual
Compact balance
KERN FCB
Version 1.4
04/2016
GB
FCB-BA-e-1614

FCB-BA-e-1614
2
GB
KERN FCB
Version 1.4 04/2016
Operating Manual
Compact balance
Table of Contents
1Technical Data ............................................................................................... 4
2Declaration of conformity ............................................................................. 7
3Basic Information (General).......................................................................... 8
3.1 Proper use ................................................................................................................................. 8
3.2 Improper Use............................................................................................................................. 8
3.3 Warranty .................................................................................................................................... 8
3.4 Monitoring of Test Resources................................................................................................. 8
4Basic Safety Precautions .............................................................................. 9
4.1 Pay attention to the instructions in the Operation Manual .................................................. 9
4.2 Personnel training .................................................................................................................... 9
5Transportation & Storage.............................................................................. 9
5.1 Testing upon acceptance ........................................................................................................ 9
5.2 Packaging.................................................................................................................................. 9
6Unpacking, Setup and Commissioning ....................................................... 9
6.1 Installation Site, Location of Use............................................................................................ 9
6.2 Unpacking/erection ................................................................................................................ 10
6.3 Mains connection ................................................................................................................... 10
6.4 Operation using a (rechargeable) battery (optional)........................................................... 11
6.5 Connection of peripheral devices......................................................................................... 11
6.6 Initial Commissioning ............................................................................................................ 12
6.7 Adjustment .............................................................................................................................. 12
6.8 Adjustment .............................................................................................................................. 12
7Operation elements ..................................................................................... 13
7.1 Overview of display................................................................................................................ 13
7.2 Keyboard overview................................................................................................................. 13

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8Basic Operation ........................................................................................... 14
Start-up ................................................................................................................................................. 14
Switching Off ....................................................................................................................................... 14
Weighing............................................................................................................................................... 14
Taring 14
PRE-TARE-Function ............................................................................................................................ 15
Plus/minus weighings......................................................................................................................... 16
Parts counting...................................................................................................................................... 16
Net-total weighings ............................................................................................................................. 17
Percent determination......................................................................................................................... 18
9Menu ............................................................................................................. 19
9.1 Navigation in the menu .......................................................................................................... 19
9.2 Menu overview........................................................................................................................ 22
9.3 Description of individual menu items .................................................................................. 24
Weighing Units .................................................................................................................................... 24
Dosing and Zero-tracking ................................................................................................................... 25
Selection adjustment weight .............................................................................................................. 25
Filter 27
Display background illumination ....................................................................................................... 28
Animal weighing function................................................................................................................... 29
Reset to factory setting...................................................................................................................... 30
9.4 Interface parameters .............................................................................................................. 31
Data transfer mode.............................................................................................................................. 31
printout ................................................................................................................................................. 32
Baud rate .............................................................................................................................................. 33
10 Data output RS 232 C .................................................................................. 33
10.1 Technical Data ........................................................................................................................ 33
10.2 Pin allocation of balance output bushing:........................................................................... 33
10.3 Explanation of the data transfer............................................................................................ 34
10.4 Output on bar code printer.................................................................................................... 36
11 Service, maintenance, disposal.................................................................. 36
11.1 CLEANING ............................................................................................................................... 36
11.2 Service, maintenance............................................................................................................. 36
11.3 Disposal................................................................................................................................... 36
12 Instant help................................................................................................... 37

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1 Technical Data
KERN FCB 3K0.1 FCB 6K0.5
Readability (d) 0.1 g 0.5 g
Weighing range (max) 3 kg 6 kg
Taring range (subtractive) 3 kg 6 kg
Reproducibility 0.1 g 0.5 g
Linearity 0.3 g 1.5 g
Minimum unit weight at
piece counting 0.2 g 1 g
Warm-up time 2 hours 30 minutes
Reference quantities at
piece counting 5, 10, 20,25, 50
Weighing Units Details „Weighing units“ see chpt. 9.3
Recommended adjustment weight,
not added (class).
Details for „Selection of the
Adjustment weight“ in chpt. 9.3
3 kg (M1) 6 kg (F2)
Stabilization time (typical) 3 sec.
Operating temperature + 5° C ... + 35° C
Humidity of air max. 80 % (not condensing)
Housing (B x D x H) mm 270 x 345 x 106
Weighing plate mm 252 x 228
Weight kg (net) 3

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KERN FCB 8K0.1 FCB 12K1
Readability (d) 0.1 g 1 g
Weighing range (max) 8 kg 12 kg
Taring range (subtractive) 8 kg 12 kg
Reproducibility 0.1 g 1 g
Linearity 0.3 g 3 g
Minimum unit weight at
piece counting 0.2 g 2 g
Warm-up time 2 hours 30 minutes
Reference quantities at
piece counting 5, 10, 20, 25, 50
Weighing Units Details „Weighing units“ see chpt. 9.3
Recommended adjustment weight,
not added (class).
Details for „Selection of the
Adjustment weight“ in chpt. 9.3
8 kg (F2) 12 kg (M1)
Stabilization time (typical) 3 sec.
Operating temperature + 5° C ... + 35° C
Humidity of air max. 80 % (not condensing)
Housing (B x D x H) mm 270 x 345 x 106
Weighing plate mm 252 x 228
Weight kg (net) 3

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KERN FCB 24K2 FCB 30K1
Readability (d) 2 g 1 g
Weighing range (max) 24 kg 30 kg
Taring range (subtractive) 24 kg 30 kg
Reproducibility 2 g 1 g
Linearity 6 g 3 g
Minimum unit weight at
piece counting 4 g 2 g
Warm-up time 30 minutes 30 minutes
Reference quantities at
piece counting 5, 10, 20, 25, 50
Weighing Units Details „Weighing units“ see chpt. 9.3
Recommended adjustment weight,
not added (class).
Details for „Selection of the
Adjustment weight“ in chpt. 9.3
20 kg (M1) 30 kg (M1)
Stabilization time (typical) 3 sec.
Operating temperature + 5° C ... + 35° C
Humidity of air max. 80 % (not condensing)
Housing (B x D x H) mm 270 x 345 x 106
Weighing plate mm 252 x 228
Weight kg (net) 3

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2 Declaration of conformity
To view the current EC/EU Declaration of Conformity go to:
www.kern-sohn.com/ce

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3 Basic Information (General)
3.1 Proper use
The balance you purchased is intended to determine the weighing value of 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. As soon as a stable weighing value is reached the weighing value can be read.
3.2 Improper Use
Do not use 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 permanent load on the
weighing plate. This may damage the measuring system. Impacts and overloading
exceeding the stated maximum load (max) of the balance, minus a possibly existing
tare load, must be strictly avoided. Balance may be damage by this.
Never operate balance in explosive environment. The serial version is not explosion
protected.
The structure of the balance may not be modified. This may lead to incorrect
weighing results, safety-related faults and destruction of the balance.
The balance may only be used according to the described conditions. Other areas of
use must be released by KERN in writing.
3.3 Warranty
Warranty claims shall be voided in case
•Our conditions in the operation manual are ignored
•The appliance is used outside the described uses
•The appliance is modified or opened
•Mechanical damage and damage caused by media, liquids
•Natural wear and tear
•The appliance is improperly set up or incorrectly electrically connected
•The measuring system is overloaded
3.4 Monitoring of Test Resources
In the framework of quality assurance the measuring-related properties of the
balance and, if applicable, the testing weight, must be checked regularly. The
responsible user must define a suitable interval as well as type and scope of this
test. 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. In KERN’s accredited DKD calibration laboratory test weights and balances may
be calibrated (return to the national standard) fast and at moderate cost.

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4 Basic Safety Precautions
4.1 Pay attention to the instructions in the Operation Manual
Carefully read this operation manual before setup and commissioning, even if you
are already familiar with KERN balances.
4.2 Personnel training
The appliance may only be operated and maintained by trained personnel.
5 Transportation & Storage
5.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
5.2 Packaging
Keep all parts of the original packaging in case you need to return the appliance.
Only use original packaging for returning.
Before sending, disconnect all connected cables and loose/movable parts.
Attach possibly existing transport safeguards. Secure all parts, e.g. weighing plate,
mains adapter etc., to prevent slipping and damage.
6 Unpacking, Setup and Commissioning
6.1 Installation Site, Location of Use
The balances are designed in a way that reliable weighing results are achieved in
common conditions of use.
You will work accurately and fast, if you select the right location for your balance.
Therefore, observe the following for the installation site:
•Place the balance on a firm, level surface;
•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, vapors and dust;
•Do not expose the device to extreme dampness for longer periods of time. Non-
permitted condensation (condensation of air humidity on the appliance) may
occur if a cold appliance is taken to a considerably warmer environment. In this
case, acclimatize the disconnected appliance for ca. 2 hours at room
temperature.
•Avoid static charge of goods to be weighed and weighing container.

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Major display deviations (incorrect weighing results) may be experienced should
electromagnetic fields (e.g. due to mobile phones or radio equipment), static
electricity accumulations or instable power supply occur. Change location or remove
source of interference.
6.2 Unpacking/erection
Carefully remove the balance from the packaging, remove plastic cover and setup
balance at the intended workstation.
The balance must be installed in a way that the weighing plate is exactly in horizontal
position.
•Place the balance on a horizontal and solid base.
•Remove the transport security on the 4-point support.
•Pull off the protection foil from the weighing plate if existing.
•Attach the weighing plate.
Scope of delivery / serial accessories
•Balance
•Weighing plate
•Transit Securing
•Mains power supply
•Protective cover
•Operating Manual
6.3 Mains connection
Power is supplied via the external mains adapter. The stated voltage value must be
the same as the local voltage.
Only use original KERN mains adapters. Using other makes requires consent by
KERN.

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6.4 Operation using a (rechargeable) battery (optional)
Lift-off the battery cover on the lower side of the balance. Connect 9 V compound
battery.
Replace the battery compartment cover.
For battery operation the balance has an automatic switch-off function which can be
activated or deactivated in the menu (chapter 9).
In weighing mode keep the PRINT-key pressed until [Unit] appears.
Press MODE key repeatedly until „AF“ appears.
Use the SET key, to confirm.
Use the MODE key to choose between the two following settings:
„AF on“:
In order to save the battery, the balance switches automatically
off after 3 minutes without weighing.
„AF off“:
Switch-off function deactivated.
Use the SET key to confirm. The balance returns to weighing mode.
If the batteries are run down, "LO" appears in the display. Press ON/OFF-key and
replace the batteries immediately.
If the balance is not used for a longer time, take out the batteries and store them
separately. Leaking battery liquid could damage the balance.
If there exists an optional rechargeable battery, it has to be connected in the battery
compartment via a separate plug-in socket. Now the mains adapter delivered with
the rechargeable battery must be applied.
6.5 Connection of peripheral devices
Before connecting or disconnecting of additional devices (printer, PC) to the data
interface, always disconnect the balance from the power supply.
With your balance, only use accessories and peripheral devices by KERN, as they
are ideally tuned to your balance.

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6.6 Initial Commissioning
In order to obtain exact results with the electronic balances, your balance must have
reached the operating temperature (see warming up time chap. 1). During this
warming up time the balance must be connected to the power supply (mains,
accumulator or battery).
The accuracy of the balance depends on the local acceleration of gravity.
Strictly observe hints in chapter Adjustment.
6.7 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 location in the factory). This
adjustment process must be carried out for the first commissioning, after each
change of location as well as in case of fluctuating environment temperature. To
receive accurate measuring values it is also recommended to adjust the balance
periodically in weighing operation.
6.8 Adjustment
The adjustment should be made with the recommended adjustment weight (see
chap. 1 "Technical data"). Adjustment is also possible with the weights of other
nominal values (see table 1), but not the optimum for measuring technique.
Procedure when adjusting:
Observe stable environmental conditions. A warming up time (see chapter 1) is
required for stabilization.
Turn on balance by pressing the ON/OFF key.
Press the MODE key and keep it pressed, in the display appears shortly
„CAL“. After that the exact size appears flashing in the display (see
chapter.9.3) of the adjustment weight.
Now set the adjusting weight in the centre of the weighing plate.
Press the SET key. Short time later there appears „CAL F“, then the
automatic return to the weighing mode. In the display there appears the
value of the adjustment weight.
An error during adjustment or the use of an incorrect adjusting weight will
result in an error message „CAL E“. Repeat adjustment.
Keep the adjustment close to the balance. Daily control of the weighing exactness is
recommended for quality-relevant applications.

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7 Operation elements
7.1 Overview of display
7.2 Keyboard overview
Key Designation Function
PRINT-key
•Calculate weighing data via interface
•Call up menu (keep key pressed until UNIT appears)
SET key
•Confirm settings in the menu
•Save and exit menu
MODE key
•How to select menu items
•Change settings in the menu
•Adjustment
TARE key •Taring
ON/OFF switch •Turn on/off

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8 Basic Operation
Start-up
ON
OFF
Press ON button.
The balance will carry out a self-test The balance is ready
for weighing when the weight display appears.
8888
0.0g
Switching Off
ON
OFF
Press OFF button, the display disappears
0.0g
Weighing Place goods to be weighed on balance
Wait for standstill control, after the standstill control, the
weighing unit appears right hand in the display (e.g. g or
kg)
Read weighing result.
If the goods are heavier than the weighing range, the display
will show "Error" (=Overload), and a whistle is sounded.
Taring
Place an empty weighing container, the weight of the
weighing container will be displayed.
10.0 g
TA R E
Press the TARE button, the zero display disappears. The
tare weight is saved until it is deleted.
0.0g

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Weigh the material, the net weight will be indicated.
47.2 g
The taring process can be repeated any number of times,
e.g. when adding several components for a mixture
(adding). The limit is reached when the whole weighing
range is exhausted.
The weight of the weighing container will be displayed as a
minus number after removing the weighing container.
The tare weight is saved until it is deleted.
Delete tare
TA R E
Unload the balance and press the TARE button, the zero
display appears.
0.0g
PRE-TARE-
Function
MODE
CAL
Using this function the weight of a tare vessel is stored. Even
after turning off/on the weighing balance will continue working
with the saved tare value.
In weighing mode put tare vessel on the weighing plate
Press repeatedly the MODE key until „PtArE“ flashing
appears.
Use SET key to store the current weight on the weighing
plate as a PRE-TARE value.
Delete PRE-TARE
value
MODE
CAL
Remove all loads from the balance and press repeatedly
the MODE key until „PtArE“ flashing appears.
Use the SET key to confirm. The PRE-TARE value is
deleted, the zero display appears.

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Plus/minus
weighings
TA R E
For example unit weight control, fabrication control etc.
Put the nominal weight on the weighing plate and tare using
the TARE button.
Remove the nominal weight
Put the test objects subsequently on the weighing plate, the
respective deviation from the nominal weight is displayed
with the respective sign to „+“ and „-“.
According to the same procedure also packages with the
same weight can be produced, referring to a nominal
weight.
Back to weighing mode by pressing the TARE button.
Parts counting
MODE
CAL
SET
M
During piece counting parts can either be counted into a
container or out of a container.
To count a greater number of
parts the average weight per part has to be determined with a
small quantity (reference quantity).
The larger the reference quantity, the higher the counting
exactness. High reference must be selected for
small parts or
parts with considerably different sizes.
The larger the reference quantity, the more accurate the parts
counting.
The process has four steps:
Tare the weighing container
Determine the reference unit
Original weighing of reference weight
Count the items
In weighing mode press MODE key shortly. Reference
piece number „5PCS“appears flashing.
By pressing the MODE button several times other reference
quantities 10, 25 and 50 can be called up. Place as many
pieces to count on the weighing plate as the set reference
quantity requires.
Use the SET key to confirm. The balance is now in parts
counting mode counting all units on the weighing plate.

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•Back to weighing mode by
pressing the MODE button.
•Error message „Er 1“
Piece below minimum weight of piece (See chpt. 1
“Technical specifications“): Press MODE key and restart
reference determination.
•Taring
The tare vessels can also be used for piece counting.
Before starting piece counting use the TARE
button to tare out the container.
Net-total
weighings
SET
M
It is useful if a mixture of several components is weighed into a
tare vessel and finally the sum weight of all weighed
components is necessary for control purposes (net-
total, i.e.
the weight of the tare vessel).
Example:
1. Place tare container on the weighing plate. Press the TARE
button, the zero display disappears.
2. Weigh-in component . Press the SET button, the zero
display disappears. [] is displayed on the right border of
the display.
3. Weigh-in component and press SET key. Net-total (sum
weight of the components and ) is displayed.
4. Press the SET button, the zero display disappears.
5. Weigh-in component and press SET key. Net-total (sum
weight of the components and and .) is displayed.
If necessary, also fill the formula up to the desired final
value. For every component more repeat the steps 4-5.
Back to weighing mode by pressing the TARE button.

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Percent
determination
MODE
CAL
SET
M
Percentage calculation facilitates weight display in percent
related to a reference weight equivalent to 100 %.
In weighing mode press MODE key repeatedly,
until [100 %] is displayed.
Put a reference weight which corresponds to 100 %.
Store by pressing the SET key. Remove reference weight.
Place goods to be weighed on balance.
The weight of the sample is displayed in percentage in
terms of the reference weight.
Back to weighing mode by pressing the MODE button.

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9 Menu
9.1 Navigation in the menu
Access to menu
In weighing mode keep the PRINT key
pressed until [Unit] appears.
P R IN T
0.0
g
Vn
T
How to select menu items
Using the MODE key the individual menu
items can be selected one after the
other.
MODE
CAL
Vn
T
PR
How to change settings
Acknowledge selected menu item using
SET key, the current setting is displayed.
Change the settings using the MODE
key. At any pressing of the MODE key,
the next setting is displayed, see chapter
9.2 „Menu Overview“.
SET
M
MODE
CAL
PR
RE CR
Pl PC
1. Save change of a menu item and
exit the menu
Press the SET key; balance will
return to weighing mode.
SET
M
0.0
g

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2. Change settings of several menu
items
Acknowledge selected menu item using
SET key, the current setting is displayed.
Use the MODE key to change settings.
Press the TARE key, „Exit“ is displayed.
Either
Acknowledge with SET key (yes),
„StorE“ is displayed. Save (SET key) or
reject (PRINT key) and exit the menu,
or
Press PRINT key (no) and make the
changes on the other menu items as
described above
SET
M
MODE
CAL
PR
RE CR
Pl PC
TA R E
ET
m
i
j
SET
M
STQRE