KERN FCD 10K-3 User manual

KERN & Sohn GmbH www.kern-sohn.com
Ziegelei 1
72336 Balingen-Frommern
Germany
+0049-[0]7433-9933-0
+0049-[0]7433-9933-149
[e-mail]
User manual
Table scales
KERN FCD
Type TFCD-A
Version 1.0
2021-05
GB
TFCD_A-BA-e-2110

2 TFCD_A-BA-e-2110
GB
KERN FCD
Rev. 1.0 2021-05
User manual
Table scales
Contents
1Technical specification....................................................................................... 4
2Declaration of Conformity................................................................................... 6
3Device overview................................................................................................. 7
3.1 Parts............................................................................................................ 7
3.2 Keyboard..................................................................................................... 8
3.2.1 Introducing the numerical value............................................................ 9
3.3 Display......................................................................................................... 9
4Basic instructions (general information)........................................................... 10
4.1 Intended use.............................................................................................. 10
4.2 Non-intended use...................................................................................... 10
4.3 Guarantee ................................................................................................. 10
4.4 Testing equipment supervision.................................................................. 11
5Basic safety instructions................................................................................... 11
5.1 Compliance with the instructions included in the user manual .................. 11
5.2 Personnel training...................................................................................... 11
6Transport and storage...................................................................................... 11
6.1 Checking during reception......................................................................... 11
6.2 Packaging / return transport...................................................................... 11
7Unpacking, positioning and start-up................................................................. 12
7.1 Installation place, operation place............................................................. 12
7.2 Unpacking and check................................................................................ 12
7.3 Integration, setting and leveling................................................................. 13
7.4 Power supply............................................................................................. 13
7.5 Rechargeable battery operation................................................................ 14
7.5.1 Battery charging.................................................................................. 15
7.6 Connecting peripherals.............................................................................. 15
7.7 First start ................................................................................................... 15
7.8 Adjustment ................................................................................................ 16

TFCD_A-BA-e-2110 3
8Operation......................................................................................................... 17
8.1 Switching on/off......................................................................................... 17
8.2 Zeroing...................................................................................................... 17
8.3 Ordinary weighing...................................................................................... 17
8.4 Weighing with tare..................................................................................... 18
8.5 Weight unit switching................................................................................. 19
8.6 Percentage weighing................................................................................. 20
8.7 Counting the number of pieces.................................................................. 21
8.8 Test weighing............................................................................................ 22
8.8.1 Test weighing...................................................................................... 22
8.8.2 Check counting................................................................................... 24
8.9 Summing ................................................................................................... 25
9Setup menu...................................................................................................... 26
10 RS-232 interface........................................................................................... 27
10.1 Technical specification........................................................................... 27
10.2 Printer mode / protocol templates (KERN YKB-01N)............................. 28
10.3 Printout protocol (continuous data transmission) ................................... 28
11 Maintenance, service and disposal............................................................... 29
11.1 Cleaning................................................................................................. 29
11.2 Maintenance and service ....................................................................... 29
11.3 Disposal ................................................................................................. 29
12 Error messages ............................................................................................ 29
13 Help for any minor failures............................................................................ 30

4 TFCD_A-BA-e-2110
1 Technical specification
KERN FCD 3K-3 FCD 6K-3
Product number / type TFCD 3K-3-A TFDE 6K-3-A
Interval (d) 1 g 2 g
Weighing range (Max) 3000 g 6000 g
Reproducibility 2 g 2 g
Linearity ±3 g ±4 g
Minimum piece weight when
counting the number of
pieces in laboratory
conditions*
0.05 g 0.1 g
Minimum piece weight when
counting the number of
pieces in standard
conditions**
0.52 g 1 g
Adjustment points 1/2/3 kg 2/4/6 kg
Recommended
adjustment weight
(not delivered)
3 kg (M2) 6 kg (M2)
Settling time (standard) 3 s
Heating time 10 min
Weight units
g, kg, lb, oz
Air humidity max. 80%, relative (non-condensing)
Permissible
ambient temperature 0°C to +40°C
Input voltage
of the device 5 V, 1 A
Input voltage of
the power supply 100–240 VAC; 50/60 Hz
Battery (optional) 3.7 V / 4 Ah
Rechargeable
battery operation
operating time 80 h (illumination off)
operating time 50 h (illumination on)
charging time ca. 5 h
housing dimensions [mm] 320 × 340 × 110 (width × depth × height)
Scale plate,
stainless steel [mm] 300 × 230 × 18 300 × 230 × 18
Net weight [kg] 2.9
Interface RS-232

TFCD_A-BA-e-2110 5
KERN FCD 10K-3 FCD 30K-2
Product number / type TFCD 10K-3-A TFCD 30K-2-A
Interval (d) 5 g 10 g
Weighing range (Max) 15,000 g 30,000 g
Reproducibility 10 g 10 g
Linearity ±15 g ±30 g
Minimum piece weight when
counting the number of pieces
in laboratory conditions* 0.2 g 0.5 g
Minimum piece weight when
counting the number of pieces
in standard conditions** 2 g 5 g
Adjustment points 5/10/15 kg 10/20/30 kg
Recommended
adjustment weight
(not delivered) 15 kg (M2) 30 kg (M2)
Settling time (standard) 3 s
Heating time 10 min
Weight units g, kg, lb, oz
Air humidity max. 80%, relative (non-condensing)
Permissible
ambient temperature 0°C to +40°C
Input voltage
of the device 5 V, 1 A
Input voltage of
the power supply 100–240 VAC; 50/60 Hz
Battery (optional) 3.7 V / 4 Ah
Rechargeable
battery operation
operating time 80 h (illumination off)
operating time 50 h (illumination on)
charging time ca. 5 h
housing dimensions [mm] 320 × 340 × 110 (width × depth × height)
Scale plate,
stainless steel [mm] 300 × 230 × 18
Net weight [kg] 2.9
Interface RS-232
* Minimum piece weight when counting the number of pieces in laboratory
conditions:
There are optimum ambient conditions to count pieces with high resolution
No diversification of the counted pieces’ weight
**Minimum piece weight when counting the number of pieces in standard conditions:
There are unsteady ambient conditions (wind gusts, vibrations)
There is diversification of the counted pieces’ weight

6 TFCD_A-BA-e-2110
Dimensions:
2 Declaration of Conformity
The valid Declaration of Conformity EC/UE is available at:
www.kern-sohn.com/ce

TFCD_A-BA-e-2110 7
3 Device overview
3.1 Parts
Item Name
1 Scale plate
2 Display
3 Keyboard
4 RS-232 interface
5 Battery charge indicator
6 Leveler
7 Leveling screw foot
8 Power supply socket

8 TFCD_A-BA-e-2110
3.2 Keyboard
Button Name Function in the operating
mode Menu function
PRINT
button Weight data transfer via the interface
Displaying the
configuration menu
(by pressing and holding
the button)
M Button Summing
Displaying the “total” value
Button Entering the mean amount
of a single piece
Selection confirmation
Leaving menu / return to
the weighing mode
UNIT
button Weight unit switching
Deleting the total memory
TARE
button Taring Navigation button 
ZERO
button Zeroing Navigation button 
ON/OFF
button Switching on/off

TFCD_A-BA-e-2110 9
3.2.1 Introducing the numerical value
Button Name Function
Navigation button Selection of the right-hand digit
Navigation button Increasing the digit value (0–9)
Navigation button Confirmation of the entered data
3.3 Display
Symbol Description
Battery charging indicator
Discharged battery
Tolerance symbols for check weighing
Stabilization indicator
ZERO Zero indicator
GROSS Gross weight value indicator
NET Net weight value indicator
TARE Weighing data is included in the tare memory
∑
Weighing data is included in the total memory
g Weight unit “gram”
kg Weight unit “kilogram”
lb Weight unit “pound”
oz
Weight unit “ounce”
Negative value indicator
LO
OK
HI

10 TFCD_A-BA-e-2110
4 Basic instructions (general information)
4.1 Intended use
The scale you bought is intended for weighing the weighed material. It should be
considered a “non-automatic scale”, e.g. the weighed material should be carefully
placed manually on the scale plate center. The weight can be read after it has
stabilized.
4.2 Non-intended use
The scale is not intended for dynamic weighing, e.g. for removing or adding small
amounts of the weighed material. The scale’s “stabilizing and compensating”
mechanism can result in displaying erroneous weighing results! (Example: slow
outflow of the liquid from the container placed on the scale.)
Do not subject the plate to long-term load. This may damage the weighing
mechanism.
Avoid any scale impactand overload higher than the stipulated maximum load (Max),
deducting the tare from the existing load. This could damage the scale.
Never operate the scale in explosive atmospheres. The standard version is not
explosion-proof.
Never introduceany structuralmodifications tothe scale. This may result in displaying
erroneous weighing results, violating the technical safety conditions, and also in scale
damage.
The scale should always be operated in line with the provided guidelines. Other
operation ranges / areas require a written consent of KERN.
4.3 Guarantee
The warranty expires:
•if you fail to follow our guidelines included in the user manual;
•if you fail to use the device in line with the intended use;
•if you introduce any modifications or open the device;
•if the device gets damaged mechanically or damaged by the utilities, liquids and
ordinary wear and tear;
•if the device is not set correctly or the electrical system is not as required;
•if the weighing mechanism gets overloaded.

TFCD_A-BA-e-2110 11
4.4 Testing equipment supervision
Within the quality assurance system, you must check the technical measurement
properties of the scale and possibly of the available reference weight regularly. To
that aim, the responsible user should define a relevant cycle, as well as the type and
scope of such an inspection. The information on the supervision of the testing
equipment, i.e. scales, and therequired reference weights, can be found on the home
page of KERN (www.kern-sohn.com). The reference weights and scales can be
calibrated fast and for a low cost in the KERN calibration laboratory (against the
national reference) approved by DKD (Deutsche Kalibrierdienst).
5 Basic safety instructions
5.1 Compliance with the instructions included in the user manual

Before you set and start the device, read this user manual thoroughly
even if you are familiar with KERN scales.
All language versions contain non-binding translation.
Only the original document in German is binding.
5.2 Personnel training
The device can be operated and maintained solely by trained workers.
6 Transport and storage
6.1 Checking during reception
Immediately after you have received the shipment, please check if it is free from any
visible outer damage. The same applies for the unpacked device.
6.2 Packaging / return transport

Please keep all the parts of the original packaging in case you had to
send it back to us.
Always use the original packaging for the return transport.
Before you dispatch the device, disconnect any connected cables as
well as loose/moving parts.
Reinstall any transport locks, if present.

Protect all the parts, e.g. wind breaker, scale plate, power supply etc.
from slipping and damage.

12 TFCD_A-BA-e-2110
7 Unpacking, positioning and start-up
7.1 Installation place, operation place
The scales are designed to ensure reliable weighing results in standard operating
conditions.
The choice of a correct scale location ensures its accurate and fast operation.
This is why you should follow the following rules when selecting the
installation place:
•Place the scale on stable, flat surface.
•Avoid extreme temperatures and temperature fluctuations, occurring e.g.
when you place it at the radiator or in a place exposed to direct sun rays.
•Protect the scale from the direct draft present at open windows and doors.
•Avoid impact when weighing.
•Protect the scale from high humidity of air, vapors and dust.
•Do not expose it to long-term heavy moisture. Any forbidden condensation of
the air moisture on the device may occur when a cold device is placed in a
much hotter environment. In such circumstances, leave the device not
connected to the mains for 2 hours to adapt to the ambient temperature.
•Avoid static discharge from the weighed material and scale container.
If there are any electromagnetic fields, static discharge and unstable power supply,
high readout deviations (erroneous weighing results) may occur. In such
circumstances, change the location.
7.2 Unpacking and check
Remove the device and accessories from the packaging, remove the packaging
material and place the device in the target location. Check if all components included
in the delivery are present and not damaged.
Scope of delivery / standard accessories:
•Scale, see chapter 3.1
•Power supply
•User manual
•Dust cover

TFCD_A-BA-e-2110 13
7.3 Integration, setting and leveling
Remove any transport protection at the scale bottom.
Install the scale plates as shown in the drawing.
Place the scale on smooth surface.
Level the scale using the leveling feet. The air bubble in the leveler must be
present in the marked area.
Check leveling at regular intervals.
7.4 Power supply
Check if the scale voltage is set correctly. The scale can be connected to
the mains only when the voltage specified on the scale (sticker) and the
local voltage are identical.
Always use the original power supply by KERN. Using any other products
requires KERN consent.
Important information:
Before you start the device, check the power cord for damage.
The power cord must not have any contact with liquids.
The plug must be always readily available.

14 TFCD_A-BA-e-2110
7.5 Rechargeable battery operation
PLEASE
NOTE!
The rechargeable battery and the charger are compatible.
Always use the power supply delivered with the scale.
Do not use the scale when charging.

Always replace the battery with the one of the same type or
of the type recommended by the manufacturer.
The battery is not protected against all the environmental
impact
s. Exposing the battery to specific environmental
conditions may result in its fire or explosion. It may result in
serious injuries or material losses.
Protect the battery from fire and heat.
Do not allow the battery to have any contact wit
h liquids,
chemicals or salts.

Do not expose the battery to high pressure or microwave
radiation.
Do not modify any batteries, charger and do not tamper them.
Do not use any faulty, damaged or deformed battery.
Do not connect the electrical contacts of the
battery and do
not use any metal items to short circuit them.

The electrolyte may be released by the damaged battery. Any
contact of the electrolyte with the skin or eyes may irritate
them.

When you place or replace batteries, always pay attention to
the correct polarity
(see the information in the battery
compartment).

When the power supply is connected, the battery operation
mode is switched off. Always remove the battery for weighing
in the power supply mode longer than 48 h! (Overheating
danger).
If you detect any odo
r emitted by the battery, its heating,
discoloration or deformation, disconnect it immediately from
the power supply and, whenever possible, from the scale.

TFCD_A-BA-e-2110 15
7.5.1 Battery charging
The rechargeable battery is charged using the supplied power cord.
Before first use, charge the battery for at least 5 hours using the power cord.
The battery symbol < > displayed on the screen means that the battery capacity
will soon run down. The device may operate ca. 1 hour longer and then it will be
switched off automatically. When the scale operates further without charging, a
blinking <LO-BAT> symbol will be displayed.
Charge the battery using the provided power supply.
When charging, LED informs of the battery status.
red: The battery is being charged
green: The battery is fully charged
7.6 Connecting peripherals
Before you connect or disconnect any extra devices (printer, computer) to/from the
data interface, the scale should always be disconnected from the mains.
Use solely accessories and peripherals supplied by KERN with the scale, being
perfectly compatible with it.
7.7 First start
To get accurate weighing results using electronic scales, ensure the scales achieves
the appropriate operating temperature (see “Heating time”, chapter 1). During the
heating time, the scale must be connected to the power source (the socket,
rechargeable battery or batteries).
The scale accuracy depends on the local standard gravity.
Always follow the guidelines in the “Adjustment” chapter.

16 TFCD_A-BA-e-2110
7.8 Adjustment
As the standard gravity value is not the same in every spot on Earth, every display
with the scale plate connected should be adjusted, in line with the weighing rules
resulting from the laws of physics, to the standard gravity in the scale location
(provided the scale system has not already been subject to factory adjustment in its
location). Such an adjustment process should be carried out during the first start,
following every location change and also in the case of any ambient temperature
fluctuations. To ensure achieving accurate measurement date, it is also
recommended to carry out regular display adjustment also in the weighing mode.
•Prepare the required adjustment weight, see chapter 1.
Whenever possible, adjust using the adjustment weight with the weight
similar to the maximum load of the scale (the adjustment weight is
recommended, see chapter 1). The adjustment may also be carried out using
weights with other nominal values or tolerance classes, but this is not optimal
from the measurement technique perspective. The adjustment weight
precision must correspond to the interval [d] of the scale, though preferably it
should be a bit higher. For information concerning reference weights, see
online at: http://www.kern-sohn.com
•Ensure stable environmental condi
tions. The heating time is required for the
stabilization (see chapter 1).
•Ensure there are no objects on the scale plate.
What to do:
Switch the scale on and when the autotest is carried out, press and hold the
button until the < > is displayed.
Release the button . < > and then the blinking symbol of the first
adjustment point will be displayed.
Using the ZERO button, select the required adjustment weight, see chapter 1
“Adjustment points” or “Recommended adjustment weight”.
Place the adjustment weight and confirm by pressing .
Wait until < > is displayed.
Remove the adjustment weight.
Press . After the successful adjustment, the scale will switch to the weighing
mode again automatically.
If there is any adjustment error or if an incorrect adjustment weight is used, the
error message is displayed. Repeat the adjustment process.

TFCD_A-BA-e-2110 17
8 Operation
8.1 Switching on/off
Switching on:
Press the ON/OFF button.
Once the displays is lit, the scale autotest will be carried out.
Wait until the weight is displayed, the scale is ready for use.
Switching off:
Press the ON/OFF button, the display will go off.
8.2 Zeroing
Zeroing corrects the effect of small pollutants on the scale plate.
Remove the load from the scale.
Press ZERO, the zero indications and <ZERO> symbol will be displayed.
8.3 Ordinary weighing
Check the zero indication, whenever required zero by pressing the ZERO
button.
Place the weighed material.
Wait until the stabilization indicator is displayed [ ].
Read out the weighing result.
Overload warning
Always avoid any device overload higher than the stipulated maximum
load (Max), deducting the tare from the existing load. This could damage
the device.
The exceeded maximum load is indicated with --ol--. Reduce the scale
load or reduce the initial load.

18 TFCD_A-BA-e-2110
8.4 Weighing with tare
The empty weight of any container used for weighing can be tared, pressing the
button which results in displaying the net weight of the weighed material during
consecutive weighing processes.
Place the scale container on the scale plate.
Wait until the stabilization indicator is displayed [ ], and press the TARE
button. The container weight is saved in the scale memory. Zero, “TARE” and
“NET” are displayed.
“NET” indicates all displayed weight values are net values.
Place the weighed material.
Wait until the stabilization indicator is displayed [ ].
Read out the net weight.
•
After the load is removed from the scale, the tare weight is displayed as a
negative value.
•
To delete the saved tare value, remove the load from the scale plate and
press TARE button.
•
The taring process can be repeated any number of times, e.g. when
weighing several mixture ingredients (making up the weight). The limit is
reached when the complete taring scope is used.

TFCD_A-BA-e-2110 19
8.5 Weight unit switching
When you press UNIT in the weighing mode, you may switch between the indications
and the enabled weight units or application units.
Activating the switchable weight units:
Press UNIT and hold it for 3 s until < > is displayed.
Using the TARE button, select the required setting.
You can choose:
kg
on/off
lb on/off
oz on/off
hj
on/off
tj
on/off
cj on/off
pc [pcs] on/off
pr [%]
on/off
Using the ZERO button, enable (on) or disable (off) the selected unit.
Using TARE, select the next unit and enable/disable it by pressing ZERO.
The process should be repeated for every unit.
Confirm by pressing , the scale will switch to the weighing mode again.
Weight unit switching
In the weighing mode the UNIT button enables to switch between the enabled
weight units.
The switching function is available solely in the weighing mode.

20 TFCD_A-BA-e-2110
8.6 Percentage weighing
Percentage weighing enables to display the percentage weight in reference to the
reference weight.
Ensure the application unit [%] is enabled, see chapter 8.5.
Using the UNIT button, select the application unit [%].
<> will be displayed.
Place the reference weight corresponding to 100%.
Wait until the stabilization indicator is displayed and then confirm by pressing
.
<> will be displayed.
Confirm by pressing , < > symbol will be displayed.
Remove the reference weight, < > will be displayed.
From now on, the sample weight is displayed as percentage referring to the
reference weight.