KERN FKTF 3K0.5LM User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [e-mail]
Tel: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating instructions
Finished packaging regulations scale
KERN FKTF
Version 1.2
11/2015
GB
FKTF-BA-e-1512

2 FKTF-BA-e-1512
GB
KERN FKTF
Version 1.2 11/2015
Operating Instructions
Finished packaging regulations scale
Contents
1Technical Data...........................................................................................................3
2Basic Information (General).....................................................................................7
2.1 Proper use.............................................................................................................................................. 7
2.2 Improper Use ......................................................................................................................................... 7
2.3 Warranty................................................................................................................................................. 7
2.4 Monitoring of Test Resources ............................................................................................................. 7
3Basic Safety Precautions .........................................................................................8
3.1 Pay attention to the instructions in the Operation Manual............................................................... 8
3.2 Personnel training................................................................................................................................. 8
4Transportation & Storage.........................................................................................8
4.1 Testing upon acceptance..................................................................................................................... 8
4.2 Packaging / return transport................................................................................................................ 8
5Unpacking, Setup and Commissioning...................................................................9
5.1 Installation Site, Location of Use......................................................................................................... 9
5.2 Unpacking.............................................................................................................................................. 9
5.3 Mains connection.................................................................................................................................. 9
5.4 Battery operation................................................................................................................................. 10
5.5 Connection of peripheral devices...................................................................................................... 10
5.6 Initial Commissioning......................................................................................................................... 10
5.7 Adjustment........................................................................................................................................... 11
5.8 Adjustment........................................................................................................................................... 11
5.9 Verification........................................................................................................................................... 11
6Operation .................................................................................................................12
6.1 Start the scale and turn on the screen.............................................................................................. 12
6.2 Creating products with desired specifications................................................................................ 16
6.3 Operating mode settings:................................................................................................................... 18
6.4 Select Operator/Article........................................................................................................................ 20
6.5 Start the measurement ....................................................................................................................... 21
6.6 Activate operator................................................................................................................................. 23
7Data output RS 232 C..............................................................................................23
7.1 Interface RS 232C................................................................................................................................ 23
7.1.1 Explanation of the data transfer ............................................................................................................ 24
8Service, maintenance, disposal.............................................................................24
8.1 Cleaning ............................................................................................................................................... 24
8.2 Service, maintenance.......................................................................................................................... 24
8.3 Disposal................................................................................................................................................ 24
9Instant help..............................................................................................................25
10 Declaration of conformity.......................................................................................26

FKTF-BA-e-1512 3
1 Technical Data
KERN FKTF 3K0.5LM FKTF 6K1LM FKTF 12K2LM
Accuracy class III III III
Readability (d) 0.5 g 1 g 2 g
Verification value (e) 0.5 g 1 g 2 g
Weighing range (max) 3.000 g 6.000 g 12.000 g
Minimum load (Min) 10 g 20 g 40 g
Taring range
(subtractive)
3.000 g 6.000 g 12.000 g
Reproducibility 0,5 g 0,5 g 1 g
Linearity ±0,5 g ±0,5 g ±1 g
Adjustment points 1 / 2 / 3 kg 2 / 5 / 6 kg 2 / 5 / 10 / 12 kg
Recommended adjust-
ing weight M1 (not
supplied) 3 kg 5 kg 10 kg
Humidity of air max. 80% rel. (non-condensing)
Stabilization time
(typical)
3 sec.
Allowable ambient tem-
perature +10 °C ... + 40 °C
Warm-up time 2 h
Housing (B x D x H)
mm
350 x 390 x 120
Vibration filter yes
Weighing plate stain-
less steel mm
340 x 240
Units see menu
Weight kg (net) 6,5
Data interface yes (RS232)
Article regular places 400
Number of operators 40
Battery operation with
6 x 1.5 V, size "C"
yes

4 FKTF-BA-e-1512
KERN FKTF 30K5LM FKTF 60K10LM
Accuracy class III III
Readability (d) 5 g 10 g
Verification value (e) 5 g 10 g
Weighing range (max) 30.000 g 60.000 g
Minimum load (Min) 100 g 200 g
Taring range (subtrac-
tive)
30.000 g 60.000 g
Reproducibility 2,5 g 5 g
Linearity ±2,5 g ±5 g
Adjustment points 10 / 20 / 30 kg 20 / 50 / 60 kg
Recommended adjust-
ing weight M1 (not
supplied) 20 kg + 10 kg 50 kg
Humidity of air max. 80% rel. (non-condensing)
Stabilization time
(typical)
3 sec.
Allowable ambient tem-
perature +10 °C ... + 40 °C
Warm-up time 2 h
Housing (B x D x H)
mm
350 x 390 x 120
Vibration filter yes
Weighing plate stain-
less steel mm 340 x 240
Units see menu
Weight kg (net) 6,5
Data interface yes (RS232)
Article regular places 400
Number of operators 40
Battery operation with
6 x 1.5 V, size "C"
yes

FKTF-BA-e-1512 5
Packaged Goods Regulation (PGR/FPVO). To weighing scales specially designed for
packaged goods applies
§ 22 of the Packaged Goods Regulation PGR. This paragraph says:
(1) Commercially produced, packaged goods labelled by weight or volume of the same nom-
inal filling quantity must be produced in such as way that the filling quantity at the point of
production
1. on average does not drop below the nominal filling quantity and
2. does not exceed the values for negative deviation from the nominal filling quantity stipu-
lated in section 3.
(2) Packaged goods labelled by weight or volume of the same nominal weight must be
brought into the territory covered by this regulation only if the filling quantity at the point of
production
1. on average does not drop below the nominal filling quantity and
2. does not exceed the values for negative deviation from the nominal filling quantity stipu-
lated in section 3.
(3) The allowable minus deviations are as follows:
Nominal filling quan-
tity Q
N
in g or ml
Admissible minus deviation
in % of QNin g or ml
5 to 50
9
-
50 to 100
-
4.5
100 to 200
4.5
-
200 to 300
-
9
300 to 500
3
-
500 to 1,000
-
15
1,000 to 10,000
1.5
-
When applying this table, any values for admissible minus deviations calculated in weight or
volume units that are stated in percent should always be rounded up to 0.1 gram or 0.1 milli-
litre. Minus deviations should not exceed 2 per cent of the packaged goods.
(4) Packaged goods labelled by weight or volume of the same nominal filling quantity may
only be launched commercially if the minus deviation from the nominal filling quantity does
not exceed double the amount of the values stipulated on the table under section 3.
These rules give the manufacturers of packaged goods a clear standard for production con-
trol in manufacture and the consumer confidence that such products actually contain the
filling quantity labelled on the package by the manufacturer.

6 FKTF-BA-e-1512
Packaged goods manufactured and tested according to the rules stipulated by the Pack-
aged Goods Regulation bear the following marking on their label:
Weighing scales to be used in packaged goods control must have type approval according
to
category III combined with a valid verification.
The choice of a non-automatic weighing scale should be on the one hand according to the
required maximum weight and on the other hand the maximum admissible verification value
(e) for the nominal filling quantity to be tested: According to the admissible maximum num-
ber of errors for the verified weighed result (e):
Nominal filling quantity QN
for packaged goods in g or ml
Maximum admissible verification value
in g
Less than 10
0.1
For 10 to less than 50
0.2
Nominal filling quantity QN
For packaged goods in g or ml
Maximum admissible verification value
in g
For 50 to less than 150
0.5
For 150 to less than 500
1.0
For 500 to less than 2500
2.0
For 2500 and more
5.0
Finally, it should be noted that shorter re-verification periods are applied in many European
States for weighing scales used in package controlling as opposed to those for regular
weighing scales of verification category III. Usually this is every year or every two years.

FKTF-BA-e-1512 7
2 Basic Information (General)
It is absolutely necessary that you read and understand the operating instructions prior to
installation and commissioning and follow the instructions during the process!
2.1 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.
2.2 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 sys-
tem.
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 pro-
tected.
The structure of the balance may not be modified. This may lead to incorrect weighing re-
sults, 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.
2.3 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
2.4 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 de-
fine 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. Our accredited DKD calibration laboratory
offers fast and inexpensive adjustment for test weights and weighing balances (reset to na-
tional normal weight).

8 FKTF-BA-e-1512
3 Basic Safety Precautions
3.1 Pay attention to the instructions in the Operation Manual
Carefully read this operation manual before setup and commis-
sioning, even if you are already familiar with KERN balances.
3.2 Personnel training
The appliance may only be operated and maintained by trained personnel.
4 Transportation & Storage
4.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the appliance it-
self when unpacking for possible visible damage.
In case of visible damage have the damage verified by the messenger’s signature. Do not
alter goods or packaging and do not remove any parts of the delivery. Report the damage
immediately (within 24 hours) in writing to the parcel service.
4.2 Packaging / return transport
Keep all parts of the original packaging for a possibly required return.
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 platform,
power unit etc. against shifting and damage.

FKTF-BA-e-1512 9
5 Unpacking, Setup and Commissioning
5.1 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, accli-
matize the disconnected appliance for ca. 2 hours at room temperature.
- Avoid static charging of the material to be weighed, weighing container and wind-
shield.
If electro-magnetic fields or static charge occur, or if the power supply is unstable major de-
viations on the display (incorrect weighing results) are possible. In that case, the location
must be changed.
5.2 Unpacking
Carefully remove the balance from the packaging, remove plastic cover and setup balance
at the intended workstation.
5.3 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.

10 FKTF-BA-e-1512
5.4 Battery operation
To insert the batteries (6 x 1.5 V) remove the battery compartment cover. Remove
it with the help of a coin.
In the each battery tube insert three batteries in the same polarity sense.
Screw down again the battery cover.
To save the battery, the background illumination can be switched off (G10).
If the battery voltage drops below a critical value for operational safety, turns off the scale.
5.5 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 acces-
sories and peripheral devices by KERN, as they are ideally tuned to your balance.
5.6 Initial Commissioning
A warming up time of 2 hours after switching on stabilizes the measuring values.
The accuracy of the balance depends on the local acceleration of gravity.
Strictly observe hints in chapter “Adjustment”.