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KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: info@kern-sohn.com
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating manual
Precision balances
KERN PFB
Type PFB_A
Version 4.1
2017-10
GB
PFB-BA-e-1741
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2 PFB-BA-e-1741
GB
KERN PFB
Type PFB_A Version 4.1 2017-10
Operating manual
Precision balance
Contents
1 Technical data ................................................................................................ 4
2 Declaration of conformity ............................................................................. 7
3 Appliance overview ....................................................................................... 8
3.1 Keyboard overview ..................................................................................................................... 8
3.2 Overview of display .................................................................................................................... 9
4 Basic Information (General ) ........................................................................ 10
4.1 Proper use ................................................................................................................................ 10
4.2 Improper Use ............................................................................................................................ 10
4.3 Warranty ................................................................................................................................... 10
4.4 Monitoring of Test Resources................................................................................................... 11
5 Basic Safety Precauti on s ............................................................................ 11
5.1 Pay attention to the instructions in the Operation Manual ........................................................ 11
5.2 Personnel training ..................................................................................................................... 11
6 Transport and storage ................................................................................. 11
6.1 Testing upon acceptance ......................................................................................................... 11
6.2 Packaging / return transport ..................................................................................................... 11
7 Unpacking, Setup and Commissioning ..................................................... 12
7.1 Installation Site, Location of Use .............................................................................................. 12
7.2 Unpacking and checking .......................................................................................................... 12
7.2.1 Placing ...................................................................................................................................... 13
7.3 Mains connection ...................................................................................................................... 14
7.4 Connecting to power supply ..................................................................................................... 14
7.5 Connection of peripheral devices ............................................................................................. 14
7.6 Adjustment ................................................................................................................................ 15
7.7 Linearization ............................................................................................................................. 16
8 Basic Operation ........................................................................................... 19
8.1 Start-up ..................................................................................................................................... 19
8.2 Switching Off ............................................................................................................................ 19
8.3 Zeroing...................................................................................................................................... 19
8.5 Switch-over weighing unit ......................................................................................................... 20
9 Applications ................................................................................................. 22
9.1 Percent determination .............................................................................................................. 22
9.2 Parts counting ........................................................................................................................... 23
9.3 Totalization ............................................................................................................................... 24
9.3.1 Manual totalizing ....................................................................................................................... 24
9.3.2 Automatic adding-up ................................................................................................................. 27
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PFB-BA-e-1741 3
10 Menu ............................................................................................................. 29
10.1 Navigation in the menu ............................................................................................................. 29
10.2 Access to technology menu...................................................................................................... 30
10.3 Overview ................................................................................................................................... 31
11 Interfaces ...................................................................................................... 33
11.1 RS232 ....................................................................................................................................... 33
11.1.1 Technical data ...................................................................................................................... 33
11.1.2 Printer operation (RS 232) ................................................................................................... 34
11.1.3 Output log (continuous output) ............................................................................................. 35
11.2 Remote control instructions ...................................................................................................... 35
11.3 Bluetooth (Factory option) ........................................................................................................ 36
11.3.1 Add device ............................................................................................................................ 36
11.3.2 Determine COM Port number .............................................................................................. 38
12 Servicing, maintenance, disposal .............................................................. 39
12.1 Cleaning.................................................................................................................................... 39
12.2 Servicing, maintenance ............................................................................................................ 39
12.3 Disposal .................................................................................................................................... 39
13 Error messages ............................................................................................ 39
14 Instant help ................................................................................................... 40
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1 Technical data
KERN (Type) PFB 120-3A PFB 200-3A PFB 300-3A
Trademark PFB 120-3 PFB 200-3 PFB 300-3
Readability (d) 0,001 g 0,001 g 0,001 g
Weighing range (max) 120 g 200 g 300 g
Reproducibility 0,001 g 0,002 g 0,002g
Linearity ±0,003 g ±0,005 g ±0,005 g
Smallest part weight for
piece counting
2 mg 2 mg 2 mg
Reference quantities at
piece counting
10, 20, 50, 100, 200
Weighing Units g, ct, lb, oz, d, ozt, dwt, mo, tl h, tl c, tl t, t, bt, n
Recommended adjustment
weight, not added (class)
100 g (F1) 200 g (F1) 300 g (F1)
Warm-up time 2 hours
Stabilization time (typical) 3 sec.
Operating temperature + 15° C .... + 35° C
Humidity of air max. 80 % (not condensing)
Housing (B x D x H) mm 315 x 210 x 156
Dimensions of wind screen
(B x D x H) mm
124 x 119 x 80
Weighing plate,
stainless steel (mm)
Ø 80 Ø 80 Ø 80
Weight kg (net) 2 kg
Electric Supply
Input voltage weighing scales 12 V / 500 mA
Input voltage power supply unit 100 V – 240 V, 50/60 Hz
Interfaces RS232
Bluetooth 2.0 (factory option)
Bluetooth 4.0 (factory option)
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PFB-BA-e-1741 5
KERN (Type) PFB 600-2A PFB 1200-2A
PFB 2000-2A
Trademark PFB 600-3 PFB 1200-2
PFB 2000-2
Readability (d) 0,01 g 0,01 g 0,01 g
Weighing range (max) 600 g 1200 g 2000 g
Reproducibility 0,01g 0,01 g 0,02 g
Linearity ±0,03 g ±0,03 g ±0,05 g
Smallest part weight for
piece counting
20 mg 20 mg 20 mg
Reference quantities at
piece counting
10, 20, 50, 100, 200
Weighing Units g, ct, lb, oz, d, ozt, dwt, mo, tl h, tl c, tl t, t, bt, n
Recommended adjustment
weight, not added (class)
600 g (F1) 1000 g (F1) 2000 g (F1)
Warm-up time 2 hours
Stabilization time (typical) 3 sec.
Operating temperature + 15° C .... + 35° C
Humidity of air max. 80 % (not condensing)
Housing (B x D x H) mm 315 x 210 x 156
Dimensions of wind screen
(B x D x H) mm
124 x 119 x 80
Weighing plate,
stainless steel (mm)
Ø 120 Ø 120
Weight kg (net) 2 kg
Electric Supply
Input voltage weighing scales 12 V / 500 mA
Input voltage power supply unit 100 V – 240 V, 50/60 Hz
Interfaces RS232
Bluetooth 2.0 (factory option)
Bluetooth 4.0 (factory option)
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KERN (Type)
PFB 3000-2A PFB 6000-1A PFB 6000-2A
Trademark
PFB 3000-2 PFB 6000-1 PFB 6000-2
Readability (d) 0,01 g 0,1 g 0,05 g
Weighing range (max) 3000 g 6000 g 6000 g
Reproducibility 0,02 g 0,1 g 0,05 g
Linearity ±0,05 g ± 0,3 g ± 0,15 g
Smallest part weight for
piece counting
20 mg 200 mg 200 mg
Reference quantities at
piece counting
10, 20, 50, 100, 200
Weighing Units g, ct, lb, oz, d, ozt, dwt, mo, tl h, tl c, tl t, t, bt, n
Recommended adjustment
weight, not added (class)
3000 g (F1) 6000 g (F1) 6000 g (F1)
Warm-up time 2 hours
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 315 x 210 x 156
Dimensions of wind screen
(B x D x H) mm
124 x 119 x 80 -
Weighing plate,
stainless steel (mm)
Ø 120 155 x 145
Weight kg (net) 2 kg
Electric Supply
Input voltage weighing scales 12 V / 500 mA
Input voltage power supply unit 100 V – 240 V, 50/60 Hz
Interfaces RS232
Bluetooth 2.0 (factory option)
Bluetooth 4.0 (factory option)
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2 Declaration of conformity
The current EC/EU Conformity declaration can be found online in:
www.kern-sohn.com/ce
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3 Appliance overview
3.1 Keyboard overview
Button
Key
designation
Function
ON/OFF Turn on/off
ZERO
Zeroing
TARE Taring
%
Enable calculati on o f per c entag e
Returning to weighing mode from calculation of
percentage mode
PCS
Enable parts counting
In the piece count mode back to weighing mode
MODE
Weighing units switch-over
Scroll forward in menu
PRINT
Print out weighing result
Exit menu / back to weighing mode.
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3.2 Overview of display
Display Description
Zero indicator
Net weight value display
ο Stability display
Pcs Parts counting application
% Calculation of percenta g e appli cati o n
Tolerance weighing application
Capacity display
The capacity display moves from the left to the right and proceeds
equally to the weight loaded onto the weighing balance. Its full width
is reached at maximum load.
This is an analogue display of the current allocation of the weighing
area.
Weighing Units
(g) Gramm
(kg) Kilogramm
(ct) Carat
(mom) Momme
(oz) Ounce
(ozt) Fine ounce
(dwt) Penny weight
(tl.h) Tael (Taiwan)
(t.lt) Troy Tael
(t) Tola
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4 Basic Information (General)
4.1 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-aut o matic bal a nce”, i.e. the
material to be weighed is manually and carefully placed in the centre of the weighing
pan. As soon as a stable weighing value is reached the weighing value can be read.
4.2 Improper Use
Do not use balance for dynamic weighing. In the event that small quant it ies ar e
removed or added to the material to be weighed, incorrect weighing results can be
displayed due to the “stability compensation“. (Example: Slowly draining fluids from a
container on the balance.)
Do not leave permanent load on the weighing pan. This may dama g e the meas ur ing
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 faul ts 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.
4.3 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 ope ne d
• 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
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4.4 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.
5 Basic Safety Precautions
5.1 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.
All language versions contain a non-binding translation.
The original German is binding.
5.2 Personnel training
The appliance may only be operated and maintained by trained personnel.
6 T ransport and storage
6.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
6.2 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.
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7 Unpacking, Setup and Commis si oning
7.1 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, vapours and dust;
• Do not expose the device to extreme dampness for longer periods of time.
Non-permitted condensation (condensation o f air humidi ty 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 or weighing container.
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.
7.2 Unpacking and checking
Remove device and accessories carefully from packaging, remove packaging
material and place device at the planned work place. Verify that there has been no
damage and that all packing items are present.
Scope of delivery / serial accessories:
• Balance
• Weighing pan
• Mains adapter
• Operating manual
• Wind shield (only models PFB 120-3A, PFB 200-3 A, PFB 300-3 A,
PFB 1200-2A, PFB 2000-2A, PFB 3000-2A)
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7.2.1 Placing
Remove transport securing
(only models PFB 120-3A, PFB 200-3A, PFB 300-3A)
Installation of weighing plate
The balance must be installed in a way that the weighing plate is exactly in
horizontal position.
Install wind shield
(only models PFB 120-3A, PFB 200-3 A, PFB 300-3 A, PFB 1200-2A,
PFB 2000-2A, PFB 3000-2A)
Levelling
Exact alignment and stable installation are an essential requirement for
repeatable results. You can compensate for minor unevenness or tilts of the
footprint by levelling the weighing balance.
Level balance with foot screws until the air bubble of the
water balance is in the prescribed circle.
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7.3 Mains connection
Select a country-specific power plug and insert it in the power unit.
Check, whether the voltage acceptance on the scales is set correctly.
Do not connect the
scales to the power grid unless the information on
the scales (sticker) matches the local mains voltage.
Only use KERN original mains adapter. Using other makes requires
consent by KERN.
Important:
Before starting your weighing balance, check the mains ca bl e for
damage.
Ensure that the power unit does not come into contact with liquids.
Ensure access to power plug at all times.
7.4 Connecting to power supply
Supply power to balance via mains adapter.
Press the ON/OFF key to light up the display.
The balance will carry out a display test. As soon as the weight display appears,
the balance is ready for weighing.
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 connection, accumulator or battery).
The accuracy of the balance depends on the local acceleration of gravity.
Strictly observe hints in chapter Adjustment.
7.5 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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7.6 Adjustment
As the acceleration value due to gravity is not the same at every location on earth,
each balance must be coordina ted - 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.
• Observe stable environmental conditions. A warming up time (see chapter
1) is required for stabilization.
• Prepare adjustment weight, see chap. 1.
The adjustment weight you use is dependent on the capacity of the
balance. Perform adjustment as close as possible to the maximum load.
Info about test weights can be found on t he In ter net at : http://www.kern-
sohn.com
•
Ensure that there are no objects on the weighing pan.
Procedure:
In weighing mode press and hold the MODE key until <UnLoAd> is displayed on
the screen.
or
call up menu item “P2 CAL“ and confirm by pressing the ZERO key.
When display <LoAd> appears, put the necessary adjustment weight (see
chap.1; Technical Data) on the center of the weighing plate.
Adjustment will be carried out automatically after stability control.
After successful adjustment „PASS“ will be displayed. The balance returns
automatically into weighing mode.
Take away adjustment weight
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7.7 Linearization
Linearity shows the greatest deviation of a weight display on the scale to the value of
the respective test weight according to plus and minus over the entire weighing
range.
If linearity deviation is discovered during a monitoring of test resources, you can
improve this by means of linearization.
• In balances with a resolution of > 15 000 dividing steps carrying out a
linearisation is recommended.
• Carrying out linearization is restricted to specialist staff possessing well
acquainted with the workings of weighing scales.
• The test weights to be used must be adapted to the weighing scale’s
specifications; see chapter “Monitoring of test equipment”.
• Observe stable environmental conditions. Stabilisation requires a certain
warm-up time.
• After successful linearisation you will have to carry out calibration;
see chapter “Monitoring of test equipment”.
• Provide the adjustment weights required as shown in table 1.
Table 1 Linearisation points:
Max LoAd 1 LoAd 2 LoAd 3 LoAd 4
120 g 30 g 60 g 90 g 120 g
200 g 50 g 100 g 150 g 200 g
300 g 50 g 100 g 200 g 300 g
1200 g 300 g 600 g 900 g 1200 g
2000 g 500 g 1000 g 1500 g 2000 g
3000 g 0.5 kg 1 kg 2 kg 3 kg
6000 g 1 kg 2 kg 4 kg 6 kg
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Procedure:
Switch on weighing scales and press and hold the MODE key during the self-test
until “F1 Unt“ is shown on the screen.
Press the MODE key repeatedly until “tECH“ is shown on the screen.
Confirm with ZERO button.
Press , and successively, „P1 Lin“ appears
Again press the ZERO key until “Pin“ reappears.
Press , and one after the other, whereupon “LoAd 0“ will be
shown. Ensure that there are no objects on the weighing pan.
An audio sound indicates the end of the stability control and “LoAd 1“ will be
shown.
Place the first adjustment weight. An audio sound will follow after stability control
and „LoAd 2“ will be shown. Take away adjustment weight.
Place the second adjustment weight. An audio sound will follow after stability
control and „LoAd 3“ will be shown. Take away adjustment weight.
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Put on the third adjustment weight. An audio sound will follow after stability control
and „LoAd 4“ will be shown. Take away adjustment weight.
Place the fourth adjustment weight (max). An audio sound will follow after stability
control and „LoAd 0“ will be shown. Take away adjustment weight.
Ensure that there are no objects on the weighing pan.
An audio sound will follow after stability control and “LoAd 4“ will be shown.
Place fourth adjustment weight again. An audio sound will follow after stability
control and “LoAd 3“ will again be shown. Take away adjustment weight.
Put on the third adjustment weight. An audio sound will follow after stability control
and „LoAd 2“ will be shown. Take away adjustment weight.
Place the second adjustment weight. An audio sound will follow after stability
control and „LoAd 1“ will be shown. Take away adjustment weight.
Place the first adjustment weight. An audio sound will follow after stability control
and „LoAd 0“ will be shown. Take away adjustment weight. Ensure that there are
no objects on the weighing pan.
An audio sound will follow after stability control and the weighing scale will change
automatically into weighing mode.
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8 Basic Operation
8.1 Start-up
Press the ON/OFF key to light up the display.
The balance will carry out a display test. As soon as the weight display appears,
the balance is ready for weighing.
8.2 Switching Off
Press ON/OFF button, the display disappear s
8.3 Zeroing
Resetting to zero corrects the influence of light soiling on the weighing plate.
Unload the balance
Press the ZERO button, the zero display and the indicator will appear.
8.4 Simple weighing
1. Place goods to be weighed on balance.
2. Wait for stability display .
3. Read weighing result.
Overload warning
Overloading exceeding the stated maximum load (max) of the device, minus a
possibly existing tare load, must be strictly avoided. This could damage the
instrument.
Exceeding maximum load is indicated by the display of „----“ and an audio
sound. Unload weighing system or reduce preload.
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8.5 Switch-over weighing unit
How to enable weighing units:
Switch on weighing scales and press and hold the MODE key during the self-test
until “F1 Unt“ is shown on the screen.
Press the ZERO key, the first weighing unit with the current setting will be
displayed.
Press the MODE key to enable [on] / disable [off] the weighing unit.
Use the ZERO key, to confirm. The next unit will be shown.
Press the MODE key to enable [on] / disable [off] the displayed weighing unit.
Use the ZERO key, to confirm. The next unit will be shown.
Repeat sequence for each weighing unit.
Switch-over weighing unit:
Press the MODE key to switch the display in weighing mode to the previously
enabled weighing units.
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8.6 Weighing with tare
Deposit weighing vessel. After successful stability control press the TARE button.
Zero display and indicator appear. The weight of the container is now
internally saved.
Weigh the material, the net weight will be indicated.
• The balance is able to only store one taring value at a time.
•
When the balance is unloaded the saved taring value is displayed with
negative sign.
• To delete the stored tare value, remove load from weighing pan and
press the TARE button.
• 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 taring range capacity is full.
T
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9 Applications
9.1 Percent determination
Percent weighing allows to display weight in percent, in relation to a reference
weight.
Put the nominal weight
Place the nominal weight (reference weight which corresponds to 100 %).
Wait for stability display, then press the % button 100% is displayed.
Percent weighing /commutation
Place goods to be weighed on balance.
The weight of the item to be weighed is displayed in percent, with reference to the
nominal weight.
Press the % key, the weight of the item to be weighed is displayed in the current
weighing unit e.g. gram.
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9.2 Parts counting
Before the balance can count parts, it must know the average part weight (i.e.
reference). Proceed by putting on a certain number of the parts to be counted. The
balance determines the total weight and divides it by the number of parts, the socalled reference quantity. Counting is then carried out on the basis of the calculated
average piece weight.
As a rule:
The higher the reference quantity the higher the counting exactness.
Set reference
Press the PCS key, the current reference quantity (e.g. 10) and the indicator Pcs
are displayed.
Press the MODE key to set the desired reference quantity (i.e. 100), selectable
SP 10, SP 20, SP 50, SP 100, SP 200.
Place as many items to be counted (such as 100 items) as demanded by the set
reference quantity and confirm by ZERO key. The weighing scales calculate the
reference weight. The current quantity (such as 100 items) will be displayed.
Remove reference weight. The balance is from now in parts counting mode
counting all units on the weighing plate.
Switching over between quantity and weight display
If required, place an empty container on the weighing pan and tare by pressing
the TARE key.
Weigh the load and read the quantity.
Press the PCS key to display the weight.
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9.3 Totalization
9.3.1 Manual totalizing
With this function the individual weighing values are added into the summation
memory by pressing the PRINT key and edited when an optional printer is
connected.
• For menu settings, see chapter 10.3:
„F3 COM“ „S 232“ „P Prt“
„F4 Acc“ „on“
• The totalizing function is not active when the weight is under 20d.
Add up:
Place item to be weighed A, e.g. 100 g.
Wait for stability display, then press the PRINT key. The weight value will be
saved and printed if an optional printer is connected. The number of weighings,
followed by the total weight will be indicated.
Remove the weighed good. More weighed goods can only be added when the
display ≤ zero.
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PFB-BA-e-1741 25
Place item to be weighed B, e.g. 200 g.
Wait for stability display, then press the PRINT key. The weight value will be
added to the summation memory and edited. Number of weighings, followed by
the total weight will be displayed for 2 sec. After that the current weighing value is
displayed.
Add more weighed goods as described before.
Please note that the weighing system must be unloaded between the individual
weighing procedures.
This process may be repeated 99 times or till such time as the capacity of the
weighing system has been exhausted.
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Display and edit sum „Total“:
When the balance is unloaded (zero display) press the PRINT key, the number of
weighings, followed by the total weight will be shown for 2 sec and printed if an
optional printer is connected.
Delete sum memory:
With the weighing scales unloaded (zero display) press the PRINT key, wait for
display of “total weight” and press the PCS key. The data in the summation
memory are deleted.
Printout example (KERN YKB-01N):
1:
100.00 g N
First weighing
2:
200.00 g N
Second weighing
- - - - - - - - - - - - - - - - - - -
1-2:
300.00 g C
Total weight
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9.3.2 Automatic adding-up
With this function the individual weighing values are automatically added into the
summation memory when the balance is unloaded without pressing and edited,
when an optional printer is connected.
• Menu settings, chap. 10.3:
„F3 COM“ „S 232 „P AUto“
„F4 Acc“ „on“
• The totalizing function is not active when the weight is under 20d.
Add up:
Place item to be weighed A, e.g. 100 g.
After stabilisation control has taken place, you will hear an audio sound.
Remove the weighed good. The weighing value is added to the summation
memory and printed if an optional printer is connected.
More weighed goods can only be added when the display ≤ zero.
Place item to be weighed B, e.g. 200 g.
After stabilisation control has taken place, you will hear an audio sound.
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Remove the weighed good. The weighing value is added to the summation
memory and printed if an optional printer is connected. Number of weighings,
followed by the total weight will be displayed for 2 sec.
Add more weighed goods as described before.
Please note that the weighing system must be unloaded between the individual
weighing procedures.
This process may be repeated 99 times or till such time as the capacity of the
weighing system has been exhausted.
For how to display and delete weighing data as well as printout example see
chap. 9.3.1
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10 Menu
10.1 Navigation in the menu
Call up menu
Switch-on balance and during the selftest press .
The first menu item „F1 Unt„ is displayed.
Select menu item
With help of , the individual menu items can be
selected one after the ot her .
Select setting
Confirm selected menu item by pressing .
The current setting will be displayed.
Change settings
Switch into the available settings using .
Acknowledge setting /
exit the menu
Either save by pressing or cancel by pressing
.
Return to weighing
mode
Press repeatedly to exit menu.
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30 PFB-BA-e-1741
10.2 Access to technology menu
The access to the technology menu „tECH“ is locked by the key combination
, , .
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10.3 Overview
Factory settings are marked by *.
Menu block Menu item Available settings / explanation
F1 Unt
Weighing Units
g, ct, lb, oz, d, yn, ozt, dwt, mom, tl h, tl c, tl
t, t, bt, n
F2 bl
Display
background
illumination
EL AU*
Automatic background illumination on when
weighing pate is loaded or key pressed.
EL on
Background lighting of display is switched on
permanently
EO oFF Display background illumination off
F3 Com
Interface
parameters
S 232
S USb
Use to select the interface: RS232 or USB
P Prt*
• Output of stable weight value after pressing
(“
F4 Acc“ „off“)
• Manual totalizing, see chap.9.3.1
(
„F4 Acc“ „on“).
Press and the weighing value will be
added to the summation memory and
issued.
P Cont Continuous data output
P AUto For automatic totalizing see chap. 9.3.2
This function is used to issue and add individual
weighing values automatically to the summation
memory on unloading of weighing scale.
wirel Not documented
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P ASK
Remote control instructions
Acknowledge selection by .
b600
b 9600*
Available Baudrate:
600, 1200, 2400, 4800, 9600*
Acknowledge selection by .
tP Standard printer setting
LP 50 Not documented
Acknowledge selection by .
Eng*
Standard stetting English.
only displayed for setting „LP 50“
chi
Not documented
F4 Acc
Acc on
Summation function enabled
Acc of
Summation function disabled
tECH
Technology
menu
Pin
For access to technology menu see chap. 10.2
P1 Lin Linearisation, see chap. 7.7
P2 CAL Adjustment, see chap. 7.6
P3 Cnt XXXXXX
Display internal resolution
P4 A 2n
A2 oFF Automatic zero point correction switched off
A2n 0.5d
Automatic zero point correction (AutoZERO) by changing
the display, digits selectable (0.5d, 1d, 2d, 4d)
A2n 1d
A2n 2d*
A2n 4d
P5 GrA XXXXXX Local gravitation constant
P6 CAP XXXX Capacity (max)
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11 Interfaces
Via the interfaces weighing data may be exchanged with connected peripheral
devices.
RS 232 interface USB interface for PC connect io n
Menu setting, see chapter 10.1:
„F3 COM“ „S 232“
Menu setting, see chapter 10.1:
„F3 COM“ „USB“
Suitable peripheral dev i ces :
• Printer
• PC
Suitable peripheral dev i ces :
• PC
On the PC a virtual COM-Port is
installed, which is recognized and
triggered by the PC software (e.g.
KERN balance connection).
The following conditions must be met to provide successful communic ati on between
the weighing balance and the peripheral devices.
• Connect balance using a suitable cable with the interface of the peripheral
device. Faultless operation requires an adequate KERN interface cable.
• Communication parameters (baud rate, bits and parity) of balance and
peripheral device must match.
11.1 RS232
11.1.1 Technical data
Connection (RS 232) 9 pin d-subminiature bushing
Pin 2 input
Pin 3 output
Pin 5 signal earth
Baud rate Optional 600/1200/2400/4800/9600
Parity 8 bits, no parity
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11.1.2 Printer operation (RS 232)
Printout examples (KERN YKB-01N):
1. Menu settings F3 COM <P Prt> / F4 <Acc of>
Weighing mode 300.00 g
Percent determination 50.01 %
Parts counting 20 PCS
5.00027g /P
100 g
Totalization
1:
100.00 g N
2:
200.00 g N
- - - - - - - - - - - - - - - - - - -
1-2:
300.00 g C
2. Menu settings F3 COM <P Cont> / F4 <Acc of>
stable / gross ST, G: 50.00 g
stable / net ST, N: 50.00 g
unstable / gross US, G: 50.00 g
unstable / net US, N: 50.00 g
Weighing values ≤ zero are not edited via the interface.
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PFB-BA-e-1741 35
11.1.3 Output log (continuous output)
HEADER1: ST = stable, US = instable
HEADER2: N = net, G = gross
11.2 Remote control instructions
Command Function
S Stable weighing value for the weight is sent via the interface
W
Weighing value for the weight (stable or unstable) is sent via the
interface
T No data are sent, the balance carries out the tare function.
Z No data are sent, the zero-display appears.
P Quantity is sent via the interface
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11.3 Bluetooth (Factory option)
Legal notices
Bluetooth® is a registered and protected trademark of Bluetooth® SIG,Inc.
The wordmark and logos are the property of Bluetooth® SIG,Inc.
The use of such trademarks is licensed by KERN. Other trademarks and brand
names are the property of their respective owners.
11.3.1 Add device
Switch on balance
Enable Bluetooth and click the Bluetooth icon on the task bar.
Click on „Add device“.
Mark “FBT06“ and click “Next“
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Click on "Enter pairing code of the device"
Enter code 1234
Click on „Close“
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11.3.2 Determine COM Port number
Display Bluetooth network appliances
Double-click to display the COM Port
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PFB-BA-e-1741 39
12 Ser vic ing, maintenance, disposal
Before any maintenance, cleaning and repair work disconnect the
appliance from the
operating voltage.
12.1 Cleaning
Please do not use aggressive cleaning agents (solvents or similar agents), but a cloth
dampened with mild soap suds. Ensure that no liquid penetrates into the device.
Polish with a dry soft cloth.
Loose residue sample/powder can be removed carefully with a brush or manual
vacuum cleaner.
Spilled weighing goods must be removed immediately.
12.2 Servicing, maintenance
The appliance may only be opened by trained service technicians who are
authorized by KERN.
Before opening, disconnect from power suppl y.
12.3 Disposal
Disposal of packaging and appliance must be carried out by operator according to
valid national or regional law of the location where the appliance is used.
13 Error messages
Defect/
fault
Description Possible causes / troubleshooting
Err 3
Incorrect adjusting w eight
Place correct adjustment weight (see
chap. 1; Technical Data
Err 4
Zero range exceeded
Remove load and reset weighing scales
to zero with ZERO key.
Err 5 Keyboard error Inadmissible input
Err 6
Electronic error
Switch balance off and on again. If the
error message remains displayed,
please contact your dealer.
Transport Securing Remove the transportation lock
Err 19 Unable to initialise zero point
• Measuring cell defective / overloaded
• Object on weighing pan / contact
• Transport locking device was not
removed
• Main board defective
Remedy: Adjust and linearise
weighing scales
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14 Inst ant hel p
In case of an error in the program process, briefly turn off the balance and disconnect
from power supply. The weighing process must then be restarted from the beginning.
Help:
Fault Possible cause
The displayed weight does
not glow.
• The balance is not switched on.
• The mains supply connection has been interrupted
(mains cable not plugged in/ faul ty).
• Power supply interrupted.
The displayed weight is
permanently changing
• Draught/air movement
• Table/floor vibrations
• Weighing pan has contact with other objects.
• Electromagnetic fields / static charging (choose
different location/switch off interfering device if
possible)
The weighing result is
obviously incorrect
• The display of the balance is not at zero
• Adjustment is no longer correct.
• The balance is on an uneven surface.
• Great fluctuations in temperature.
• Warm-up time was ignored.
• Electromagnetic fields / static charging (choose
different location/switch off interfering device if
possible)
Should other error messages occur, switch balance off and then on again. If the error
message remains inform manufacturer.
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