KERN CPB 15K0.5 User manual

GB KERN CPB
Version 1.2 2/2007
Operating Manual
Counting balance
CPB-BA-defsi-0712 3
7
Contents
1Technical data _________________________________________________ 39
2Declaration of conformity _______________________________________ 41
3Device overview _______________________________________________ 43
3.1 Overview of display ______________________________________________ 44
3.1.1 Display weight _______________________________________________________ 44
3.1.2 Display reference weight _______________________________________________ 44
3.1.3 Display quantity ______________________________________________________ 44
3.2 Keyboard overview_______________________________________________ 45
4Basic Information (General)______________________________________ 46
4.1 Proper use______________________________________________________ 46
4.2 Improper Use ___________________________________________________ 46
4.3 Warranty _______________________________________________________ 46
4.4 Monitoring of Test Resources ______________________________________ 47
5Basic Safety Precautions ________________________________________ 47
5.1 Pay attention to the instructions in the Operation Manual_______________ 47
5.2 Personnel training _______________________________________________ 47
6Transport and storage __________________________________________ 47
6.1 Testing upon acceptance _________________________________________ 47
6.2 Packaging ______________________________________________________ 47
7Unpacking, Setup and Commissioning ____________________________ 48
7.1 Installation Site, Location of Use ___________________________________ 48
7.2 Unpacking ______________________________________________________ 48
7.2.1 Setup ______________________________________________________________ 48
7.2.2 Scope of delivery _____________________________________________________ 49
7.3 Mains connection ________________________________________________ 49
7.4 Battery power supply _____________________________________________ 49
7.5 Connection of peripheral devices___________________________________ 49
7.6 Initial Commissioning ____________________________________________ 49
7.7 Adjustment with external weight ___________________________________ 50
7.7.1 Models CPB (Non verifiable models) ______________________________________ 50
7.7.2 Models CPB.. M (verifiable models) _______________________________________ 51
7.8 Verification _____________________________________________________ 53
7.8.1 Jumper and seals _____________________________________________________ 54

8Weighing _____________________________________________________ 55
8.1 Switch on/off and set zero _________________________________________ 55
8.2 Simple weighing _________________________________________________ 55
8.3 Weighing with taring _____________________________________________ 56
8.3.1 Determination of the tare weight by weighing________________________________ 56
9Parts counting_________________________________________________ 57
9.1 Determination of the reference weight by weighing ____________________ 57
9.2 Numeric entering of the reference weight ____________________________ 59
9.3 Automatic reference optimization___________________________________ 59
9.4 Target piece input________________________________________________ 60
9.5 Manual total memory _____________________________________________ 60
9.6 Automatic total memory___________________________________________ 61
10 Data Interface RS 232C ________________________________________ 62
10.1 Technical data___________________________________________________ 62
10.2 Pin allocation for the balance output socket (front view)________________ 62
10.3 Data format _____________________________________________________ 62
10.4 Interface parameter ______________________________________________ 64
10.5 Input commands format___________________________________________ 65
10.6 Setting the date/time _____________________________________________ 66
11 Display background illumination________________________________ 67
12 AUTO OFF function___________________________________________ 68
13 Service, maintenance, disposal _________________________________ 69
13.1 Cleaning _______________________________________________________ 69
13.2 Service, maintenance_____________________________________________ 69
13.3 Disposal________________________________________________________ 69
14 Instant help _________________________________________________ 70
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1 Technical data
KERN CPB 3K0.1 CPB 6K0.2 CPB 15K0.5 CPB 30 K1
Readability (d) 0,1 g 0,2 g 0,5 g 1 g
Weighing range (max) 3 kg 6 kg 15 kg 30 kg
Reproducibility 0,1 g 0,2 g 0,5 g 1 g
Linearity ± 0,4 g ± 0,8 g ± 1,5 g ± 3 g
Stabilization time 2 sec. 2 sec. 2 sec. 2 sec.
Recommended adjusting
weight (not supplied) 3 kg (M1) 5 kg (M1) 10 kg (M1) 20 kg (M1)
Minimum piece weight 0,05 g 0,1 g 0,25 g 0,5 g
Reference quantity freely selectable
Net weight (kg) 4.1 kg
Permissible ambient
condition -10° C to 40° C
Humidity of air 15 % - 85 % (not condensing)
Weighing plate, stainless
steel 225 x 275 mm
Dimensions of the housing
(B x D x H) 315 x 355 x 110 mm
Mains connection Mains adaptor 230 V, 50/60 Hz ; 9 V DC balance, 800 mA
Battery Operating time ca. 70 hrs. / Charging time ca. 12 hrs.
CPB-BA-defsi-0712 39

KERN CPB 3K1M CPB 6K2M CPB 15K5M CPB 30K10M
Readability (d) 1 g 2 g 5 g 10 g
Weighing range (max) 3 kg 6 kg 15 kg 30 kg
Verification value e 1 g 2 g 5 g 10 g
Class of accuracy III III III III
Reproducibility 1 g 2 g 5 g 10 g
Linearity ± 1 g ± 2 g ± 5 g ± 10 g
Stabilization time 2 sec. 2 sec. 2 sec. 2 sec.
Recommended adjusting
weight (not supplied)
2 kg + 1 kg
(F2) 5 kg (F2) 10 kg + 2 kg (F2)
20 kg + 5 kg
(F2)
Minimum piece weight 0,05 g 0,1 g 0,25 g 0,5 g
Reference quantity freely selectable
Net weight (kg) 4.1 kg
Permissible ambient
condition -10° C to 40° C
Humidity of air 15 % - 85 % (not condensing)
Weighing plate,
stainless steel 225 x 275 mm
Dimensions of the housing
(B x D x H) 315 x 355 x 110 mm
Mains connection Mains adaptor 230 V, 50/60 Hz ; 9 V DC balance, 800 mA
Battery Operating time ca. 70 hrs. / Charging time ca. 12 hrs.
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2 Declaration of conformity
KERN & Sohn GmbH
D-72322 Balingen-Frommern
Postfach 4052
E-Mail: [email protected]
Tel: 0049-[0]7433- 9933-0
Fax: 0049-[0]7433-9933-149
Internet: www.kern-sohn.de
Konformitätserklärungen
Declaration of conformity for apparatus with CE mark
Konformitätserklärung für Geräte mit CE-Zeichen
Déclaration de conformité pour appareils portant la marque CE
Declaración de conformidad para aparatos con marca CE
Dichiarazione di conformitá per apparecchi contrassegnati con la marcatura CE
English We hereby declare that the product to which this declaration refers conforms with the
following standards.
Deutsch Wir erklären hiermit, daß das Produkt, auf das sich diese Erklärung bezieht, mit den
nachstehenden Normen übereinstimmt.
Français Nous déclarons avec cela responsabilité que le produit, auquel se rapporte la présente
déclaration, est conforme aux normes citées ci-après.
Español Manifestamos en la presente que el producto al que se refiere esta declaración est´´a de
acuerdo con las normas siguientes
Italiano Dichiariamo con ciò che il prodotto al quale la presente dichiarazione si riferisce è
conforme alle norme di seguito citate.
Electronic Scale: KERN CPB
Mark applied EU Directive Standards
89/336/EEC EMC
73/23/EEC Low Voltage
EN 61326
EN 60950-1
EN 61010
10.01.2007 Signature:
Gottl. KERN & Sohn GmbH
Management
Gottl. KERN & Sohn GmbH, Ziegelei 1, D-72336 Balingen, Tel. +49-[0]7433/9933-0,Fax +49-[0]7433/9933-149
CPB-BA-defsi-0712 41

KERN & Sohn GmbH
D-72322 Balingen-Frommern
Postfach 4052
E-Mail: [email protected]
Tel: 0049-[0]7433- 9933-0
Fax: 0049-[0]7433-9933-149
Internet: www.kern-sohn.de
Konformitätserklärungen
Declaration of conformity for apparatus with CE mark
Konformitätserklärung für Geräte mit CE-Zeichen
Déclaration de conformité pour appareils portant la marque CE
Declaración de conformidad para aparatos con marca CE
Dichiarazione di conformitá per apparecchi contrassegnati con la marcatura CE
English We hereby declare that the product to which this declaration refers conforms with the
following standards.
This declaration is only valid with the certificate of conformity by a notified body.
Deutsch Wir erklären hiermit, dass das Produkt, auf das sich diese Erklärung bezieht, mit den
nachstehenden Normen übereinstimmt.
Diese Erklärung gilt nur in Verbindung mit der Konformitätsbescheinigung einer
benannten Stelle.
Français Nous déclarons avec cela responsabilité que le produit, auquel se rapporte la présente
déclaration, est conforme aux normes citées ci-après.
Cette déclaration est valide seulement avec un certificat de conformité d´un
organisme notifié.
Español Manifestamos en la presente que el producto al que se refiere esta declaración está de
acuerdo con las normas siguientes.
Esta declaración solo será válida acompañada del certificado de conformidad de
conformidad de la parte nominal.
Italiano Dichiariamo con ciò che il prodotto al quale la presente dichiarazione si riferisce è
conforme alle norme di seguito citate.
Questa dichiarazione sarà valida solo se accompagnata dal certificato di conformità
della parte nominale.
Electronic Scale: KERN CPB…M
EU Directive Standards EC-type-approval certificate no. Issued by
90/384/EEC EN 45501 TC 7102 / T7104 NMI
Date: 10.01.2007 Signature:
Gottl. KERN & Sohn GmbH
Management
Gottl. KERN & Sohn GmbH, Ziegelei 1, D-72336 Balingen, Tel. [phone],Fax [phone]
CPB-BA-defsi-0712
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3 Device overview
RS 232 interface
Air bubble
ON/OFF switch
Mains cable
connection
ON/OFF
switch
Battery
com
p
a
r
tment
CPB-BA-defsi-0712 43

3.1 Overview of display
Weight Reference weight Pieces
0.0 0 0
dddddddddd
3.1.1 Display weight
Here, the weight of your goods is displayed in [kg].
The arrows above the symbols show:
Battery very low
NET Net weight
Stability display
aZeroing display
3.1.2 Display reference weight
Here, the reference weight of a sample is displayed in [g]. This value is either entered
by user of calculated by balance.
The arrows above the symbols show:
Number of parts placed on balance
too small
PRESET Saved limit value
Reference weight placed on balance
too small
3.1.3 Display quantity
Here, all the parts placed on balance are immediately displayed by number.
The arrows above the symbols show:
M Data in memory
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3.2 Keyboard overview
Choice Function
•Number keys
•Delete key
•Addition in total memory
•Call up total memory
•Enter/display limit value for tolerance check
•Call up menu "Display background illumination"
•Output to external device (printer) or PC
•Enter reference weight through weighing
•Numeric entry reference weight
•Function /parameter selection
•Taring key
•Save
•Zeroing key
•Back to weighing mode
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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-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.
4.2 Improper Use
Do not use balance for dynamic weighings. 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.
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 opened
•mechanical dammage or dammage 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.
5.2 Personnel training
The appliance may only be operated and maintained by trained personnel.
6 Transport 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
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,
power unit etc., to prevent slipping and damage.
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7 Unpacking, Setup and Commissioning
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 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 or weighing container.
If electro-magnetic fields or static charge occur, or if the power supply is unstable
major deviations on the display (incorrect weighing results) are possible. In that case,
the location must be changed.
7.2 Unpacking
Carefully remove the balance from the packaging, remove plastic cover and setup
balance at the intended workstation.
7.2.1 Setup
Level balance with foot screws until the air bubble of the water balance is in the
prescribed circle.
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7.2.2 Scope of delivery
Serial accessories:
•Balance
•Weighing plate
•Power cable
•Protective cover
•Internal battery
•Operating Manual
7.3 Mains connection
Power is supplied via the external mains power supply. The stated voltage value
must be the same as the local voltage. Only use original KERN mains power
supplies. Using other makes requires consent by KERN.
7.4 Battery power supply
The optionally supplied battery is charged with the supplied power supply.
Before the first use, the battery should be charged by connecting it to the mains
power supply for at least 15 hours. The operating time of the battery is about. 70h.
Charging time until complete recharging ca. 12h.
Selectable AUTO-OFF function after 1, 5, or 10 min (see chapt. 12).
If an arrow shows in the weight display [T]above the battery symbol or “bat lo”
the capacity of the battery will soon be exhausted. The balance will be ready to
operate for about another 10 min, then it will switch off automatically. Connect the
power supply as soon as possible to change the battery.
The LED display below the parts counting window informs you about the charge
status of the battery.
red: Battery is almost discharged
green: Battery is completely discharged
yellow:Battery should be charged over a longer period (over night)
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.
7.6 Initial Commissioning
A warming up time of 2 h 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.
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7.7 Adjustment with external weight
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.
Procedure when adjusting:
Observe stable environmental conditions. A warming up time of ca. 2 h is required for
stabilization. Ensure that there are no objects on the weighing plate.
7.7.1 Models CPB (Non verifiable models)
Operation Display
Switch on balance and during self-check
press the TARE key
PKN
NET
a
Weight
Use the number keys to enter password:
Either
•Default password "0000"
or
•Personal password, enter under
function [F6 PKn]
Confirm
----
Piece weight
PRESET
Ø
F1 CAL
NET
a
Weight
Ensure that there are no objects on the
weighing plate.
VnLQAD
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Zero point will be saved.
SEL 15
kg
The balance will suggest a
weighing value for adjusting
weight. However, you may enter a
value of your choice via the
number keys.
Confirm weighing value
LQAD 15
kg
Carefully place adjusting weight in
the centre of the weighing plate
Wait until the stability display shows:
Adjustment process is started.
The process of adjustment is completed.
Remove adjusting weight, balance will return
into weighing mode automatically. In case of
an adjustment error or incorrect adjusting
weight the display will show an error
message (SPAN / FAKLD); repeat adjustment
process.
SPAnPASS
Ø
000000
Ø
999999
Ø
0.0
7.7.2 Models CPB.. M (verifiable models)
For verified balances adjustment by means of a jumper is locked. In order to carry
out adjustment the two contacts of the conductor plate must be shorted with a jumper
(see chapt. 7.8.1).
Observe stable environmental conditions. A warming up time of ca. 2 h is required for
stabilization. Ensure that there are no objects on the weighing plate.
CPB-BA-defsi-0712 51

Operation Display
Switch on balance
PN
Use the number keys to enter password
„0000“:
confirmar
PN----
Ø
F1 CAL
VnLQAD
Ensure that there are no objects on the
weighing plate.
The required adjustment weight is
displayed:
LQAD 6HLOS
Carefully place adjusting weight in the centre
of the weighing plate
The adjustment process is started.
The adjustment process has been
successfully completed.
Remove adjustment weight and jumper.
The balance returns to weighing mode
----
Ø
SPAnPASS
Ø
KP Qn
f
Ø
0.0
In case of an adjustment error or incorrect adjustment weight an error message is
shown (SPAN / FAKLD) on the display, repeat adjustment process.
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7.8 Verification
General introduction:
According to EU directive 90/384/EEC balances must be officially verified if they are
used as follows (legally controlled area):
a) For commercial transactions if the price of goods is determined by weighing
b) For the production of medicines in pharmacies as well as for analyses in the
medical and pharmaceutical laboratory
c) For official purposes.
d) For manufacturing final packages.
In cases of doubt, please contact your local trade in standard.
After verification the balance is sealed at the indicated positions.
Verification of the balance is invalid without the "seal/lead seal".
Verification instructions
An EU type approval exists for balances described in their technical data as
verifyable. If a balance is used where obligation to verify exists as described above, it
must officially verified and re-verified in regular intervals.
Re-verification of a balance is carried out according to the respective national
regulations. The validity for verification of balances in Germany is e.g. 2 years.
The legal regulation of the country where the balance is used must be observed!
Balances with obligation to verify must be taken out of operation if:
•The weighing result of the balance is outside the error limit. Therefore, in
regular intervals load balance with known test weight (ca. 1/3 of the max. load)
and compare with displayed value.
•The reverification deadline has been exceeded.
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7.8.1 Jumper and seals
1. Bottom of the balance
Access to conductor plate:
•Place your balance upside down
•Remove seal
•For verified balances, the jumper is on a pin
•For adjustment the jumper must be set on both pins
Position jumper for adjustment
2. Top of the balance
•Remove weighing plate
Position
of seal
Sealing by seal or by lead
seal
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8 Weighing
8.1 Switch on/off and set zero
Operation Display
1. Switch on balance As soon as the weight display shows "0"
in all the three display windows your
balance is ready to weigh.
z0
d
Press ON/OFF switch and hold briefly (at
the bottom right side of the balance)
NET
a
Weight
The balance will carry out a self-test
2. Zeroing
z0
d
NET
a
Weight
d
The zero display and the arrow above
the „→0←“ symbol are displayed.
8.2 Simple weighing
Operation Display
Place goods onto weighing plate
Read weighing result
d
NET
z05
a
Weight
If weighing values are stable the arrow
will be displayed above the - symbol.
If the goods are heavier than the
weighing range, the display will show
"QL" (=Overload), and a whistle is
sounded.
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8.3 Weighing with taring
The dead weight of any weighing container may be tared away by pressing a button,
so that the following weighings show the net weight of the goods to be weighed.
8.3.1 Determination of the tare weight by weighing
Operation Display
Place empty tare container on the
weighing plate. The total weight of the
container is displayed.
d
NET
z05
a
Weight
Reset display to "0":
z0
d
NET
a
d
Weight
The weight of the container is now
internally saved. Zero display and the
arrow above the "NET" symbol are
displayed.
Place the goods to be weighed into the
tare container.
Read the weight of the goods on the
display.
d
NET
0.40
a
d
Weight
The taring process can be repeated any number of times, e.g. when adding several
components for a mixture (adding).
Reset display to "0":
z0
d
NET
a
d
Weight
The total weight of the container is tared
away.
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