KERN PCD 10K0.1 User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-mail:[email protected]
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating instructions
Precision balance
KERN PCD
Version 1.1
10/2012
GB
PCD-BA-e-1211

2 PCD-BA-e-1211
GB
KERN PCD
Version 1.1 10/2012
Operating instructions
Precision balance
Contents
1Technical data................................................................................................ 4
2Basic Information (General).......................................................................... 6
2.1 Proper use.................................................................................................................................. 6
2.2 Improper Use.............................................................................................................................. 6
2.3 Warranty..................................................................................................................................... 6
2.4 Monitoring of Test Resources..................................................................................................... 6
3Basic Safety Precautions.............................................................................. 7
3.1 Pay attention to the instructions in the Operation Manual .......................................................... 7
3.2 Personnel training....................................................................................................................... 7
4Transport and storage................................................................................... 7
4.1 Testing upon acceptance ........................................................................................................... 7
4.2 Packaging / return transport....................................................................................................... 7
5Unpacking, Setup and Commissioning ....................................................... 8
5.1 Installation Site, Location of Use ................................................................................................ 8
5.2 Unpacking/installation................................................................................................................. 8
5.3 Mains connection...................................................................................................................... 11
5.4 Operation using a rechargeable battery (optional) ................................................................... 11
5.5 Connection of peripheral devices ............................................................................................. 12
5.6 Initial Commissioning................................................................................................................ 12
5.7 Adjustment................................................................................................................................ 12
5.8 Adjustment................................................................................................................................ 13
6Operating elements ..................................................................................... 14
6.1 Overview of display................................................................................................................... 14
6.2 Keyboard overview ................................................................................................................... 14
7Basic Operation ........................................................................................... 15
7.1 Start-up..................................................................................................................................... 15
7.2 Switching Off............................................................................................................................. 15
7.3 Weighing................................................................................................................................... 15
7.4 Taring........................................................................................................................................ 16
7.5 Pre-Tare function...................................................................................................................... 17
7.6 Plus/minus weighings............................................................................................................... 17
7.7 Parts counting........................................................................................................................... 18
7.8 Net-total weighing..................................................................................................................... 19
7.9 Percent determination .............................................................................................................. 20

PCD-BA-e-1211 3
8Menu ............................................................................................................. 21
8.1 Navigation in the menu............................................................................................................. 21
8.2 Menu overview.......................................................................................................................... 24
8.3 Description of individual menu items........................................................................................ 26
8.3.1 Weighing Units ......................................................................................................................... 26
8.3.2 Dosing and Zero-tracking......................................................................................................... 27
8.3.3 Selection of adjustment weight................................................................................................. 28
8.3.4 Display background illumination............................................................................................... 29
8.3.5 Animal weighing function.......................................................................................................... 30
8.3.6 Foot switch................................................................................................................................ 31
8.3.7 Reset to factory setting............................................................................................................. 31
8.4 Interface parameters ................................................................................................................ 32
8.4.1 Data transfer mode................................................................................................................... 32
8.4.2 Printout ..................................................................................................................................... 33
8.4.3 Printout example....................................................................................................................... 34
8.4.4 Baud rate.................................................................................................................................. 34
9Data output RS 232 C .................................................................................. 35
9.1 Technical data .......................................................................................................................... 35
9.2 Pin allocation of balance output bushing:................................................................................. 35
9.3 Explanation of the data transfer................................................................................................ 36
9.4 Output on bar code printer........................................................................................................ 38
10 Service, maintenance, disposal.................................................................. 39
10.1 Cleaning.................................................................................................................................... 39
10.2 Service, maintenance............................................................................................................... 39
10.3 Disposal.................................................................................................................................... 39
11 Instant help................................................................................................... 40

4 PCD-BA-e-1211
1 Technical data
KERN
PCD 250-3
PCD 400-3
Readability (d)
0.001 g
0.001 g
Weighing range (max)
250 g
400 g
Taring range (subtractive)
250 g
400 g
Reproducibility
0.002 g
0.002 g
Linearity
±0.005 g
±0.005 g
Minimum unit weight at
piece counting
0.002 g
0.002 g
Warm-up time
2 hours
4 hours
Reference quantities at
piece counting
5, 10, 20, 25, 50
Weighing Units
Details „Weighing units“ see chpt. 8.3.1
Recom. adjustment weight, not
added (class)
Details about „Selection of
adjustment weight“ see chap.
8.3.3
250 g (F1)
400 g (F1)
Stabilization time (typical)
3 sec.
Operating temperature
+ 5° C .... + 35° C
Humidity of air
max. 80 % (not condensing)
Dimensions, completely assembled
(W x D x H) mm
165 x 245 x 142
Windshield rectangular mm
inside: 146x146x70
outside: 158x158x63
Dimensions Display housing
140 x 75 x 46
Weighing plate mm
Ø 10.5
Weight kg (net)
1.1
Electric Supply
220V-240V AC, 50 Hz / 9 V, 300 mA
Battery operation
9 V compound battery (optional)
Rechargeable battery (optional)
Operating time 24 h with display background illumination
Operating time 48 h without display background
illumination
loading time 8 h
Interface
RS232

PCD-BA-e-1211 5
KERN
PCD 2500-2
PCD 4000-2
PCD 10K0.1
Readability (d)
0.01 g
0.01 g
0.1 g
Weighing range (max)
2500 g
4000 g
10 kg
Taring range (subtractive)
2500 g
4000 g
10 kg
Reproducibility
0.02 g
0.02 g
0.1 g
Linearity
±0.05 g
±0.05 g
±0.3 g
Minimum unit weight at
piece counting
0.02 g
0.02 g
0.2 g
Warm-up time
4 hours
4 hours
2 hours
Reference quantities at
piece counting
5, 10, 20, 25, 50
Weighing Units
Details „Weighing units“ see chpt. 8.3.1
Recom. adjustment weight, not
added (class)
Details about „Selection of
adjustment weight“ see chap.
8.3.3
2500 g (F1)
4000 g (F1)
10 kg (F1)
Stabilization time (typical)
3 sec.
Operating temperature
+ 5° C .... + 35° C
Humidity of air
max. 80 % (not condensing)
Dimensions, completely assembled
(W x D x H) mm
165 x 280 x 73
Dimensions Display housing
140 x 75 x 46
Weighing plate mm
160x160
Weight kg (net)
1.6
Electric Supply
220V-240V AC, 50 Hz / 9 V, 300 mA
Battery operation
9 V compound battery (optional)
Rechargeable battery (optional)
Operating time 24 h with display background illumination
Operating time 48 h without display background
illumination
loading time 8 h
Interface
RS232

6 PCD-BA-e-1211
2 Basic Information (General)
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“. (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.
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 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.

PCD-BA-e-1211 7
3 Basic Safety Precautions
3.1 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.
Versions in other languages are non-binding translations.
The only binding version is the original document in German.
3.2 Personnel training
The appliance may only be operated and maintained by trained personnel.
4 Transport and storage
4.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
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.

8 PCD-BA-e-1211
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.
On the installation site observe the following:
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 and weighing container.
Do not operate in areas with hazard of explosive material or in potentially
explosive atmospheres due to materials such as gasses, steams, mists or dusts.
Keep away chemicals (such as liquids or gasses), which could attack and
damage the balance inside or from outside.
Keep IP protection of the device.
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.
5.2 Unpacking/installation
Carefully remove the balance from the packaging, remove plastic cover and setup
balance at the intended workstation.
Scope of delivery / serial accessories
Balance
Weighing plate
Mains adapter
Protective cover
Operating instructions
Windshield (only models PCD 400-3)

PCD-BA-e-1211 9
Mount the display unit in a way that facilitates operation and where it is easy to see.
1. Display unit assembled
For disassembly remove the assembly sheet by loosening the marked screws.
After that the display unit can be placed freely.
2. Display unit freely placed

10 PCD-BA-e-1211
3. Using with tripod (optional)
In order to raise the display, the display unit can be assembled to an optionally
available tripod (KERN PCD-A03).
Assembly see installation instructions of the tripod.
or
The balance must be installed in a way that the weighing plate is exactly in horizontal
position.
Level balance with foot screws until the air bubble of the
water balance is in the prescribed circle.

PCD-BA-e-1211 11
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.
5.4 Operation using a rechargeable battery (optional)
Lift-off the battery cover on the lower side of the balance. Connect 9 V compound
battery.
Replace the battery compartment cover.
For battery operation the balance has an automatic switch-off function which can be
activated or deactivated in the menu.
In weighing mode keep the PRINT key pressed until “Unit“ appears.
Press MODE key repeatedly until „AF“ appears.
Use the SET key to confirm.
Use the MODE key to choose between the two following settings:
„AF on“:
In order to save the battery, the balance switches automatically
off after 3 minutes without weighing.
„AF off“:
Switch-off function deactivated.
Use the SET key to confirm selection. The balance returns to weighing mode.

12 PCD-BA-e-1211
The empty battery is indicated on the display by “LO“. Press ON/OFF-key and
replace the battery immediately.
If the balance is not used for a longer time, take out the batteries and store them
separately. Leaking battery liquid could damage the balance.
If there exists an optional rechargeable battery, it has to be connected in the battery
compartment via a separate plug-in socket. Now the mains adapter delivered with
the rechargeable battery must be applied.
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 accessories and peripheral devices by KERN, as they
are ideally tuned to your balance.
5.6 Initial Commissioning
In order to obtain exact results with the electronic balances, the balance must have
reached the operating temperature (see warming up time chap. 1. During this
warming up time the balance must be connected to the power supply (mains,
accumulator or battery).
The accuracy of the balance depends on the local acceleration of gravity.
Strictly observe hints in chapter Adjustment.
5.7 Adjustment
As the acceleration value due to gravity is not the same at every location on earth,
each balance must be coordinated - in compliance with the underlying physical
weighing principle - to the existing acceleration due to gravity at its place of location
(only if the balance has not already been adjusted to the location in the factory).
This adjustment process must be carried out for the first commissioning, after each
change of location as well as in case of fluctuating environment temperature. To
receive accurate measuring values it is also recommended to adjust the balance
periodically in weighing operation.
Connection of rechargeable battery
Connection of battery

PCD-BA-e-1211 13
5.8 Adjustment
The adjustment should be made with the recommended adjustment weight (see
chap. 1 "Technical data"). Adjustment is also possible with the weights of other
nominal values (see table 1), but not the optimum for measuring technique.
Procedure when adjusting:
Observe stable environmental conditions. A warming up time (see chapter 1) is
required for stabilization.
Turn on balance by pressing the ON/OFF key.
Press the MODE key and keep it pressed, in the display appears shortly
„CAL“. After that the exact size appears flashing in the display
(see chapter. 8.3.3) of the adjustment weight.
Now set the adjusting weight in the centre of the weighing plate.
Press the SET key. Short time later there appears „CAL F“, then the automatic
return to the weighing mode. In the display there appears the value of the
adjustment weight.
An error during adjustment or the use of an incorrect adjusting weight will
result in an error message „CAL E“. Repeat adjustment.
Keep the adjustment close to the balance. Daily control of the weighing exactness is
recommended for quality-relevant applications.

14 PCD-BA-e-1211
6 Operating elements
6.1 Overview of display
6.2 Keyboard overview
Key
Description
Function
PRINT button
Calculate weighing data via interface
Call up menu (keep key pressed until UNIT appears)
SET button
Confirm settings in the menu
Save and exit menu
MODE button
How to select menu items
Change settings in the menu
Adjustment
TARE button
Taring
ON/OFF button
Turn on/off

PCD-BA-e-1211 15
7 Basic Operation
7.1 Start-up
ON
OFF
Press ON button.
The balance will carry out a self-test As soon as the
weight display appears, the balance is ready for
weighing.
7.2 Switching Off
ON
OFF
Press OFF button, the display disappears
7.3 Weighing
Place goods to be weighed on balance.
Wait for standstill control, after the standstill control, the
weighing unit appears right hand in the display
(e.g. g or kg)
Read weighing result.
If the material to be weighed is heavier than the
weighing range, the display will show "Error"
(=Overload).

16 PCD-BA-e-1211
7.4 Taring
Place an empty weighing container, the weight of the
weighing container will be displayed.
TARE
Press the TARE button, the zero display disappears.
The tare weight is saved until it is deleted.
Weigh the material, the net weight will be indicated.
The taring process can be repeated any number of times,
e.g. when adding several components for a mixture
(adding). The limit is reached when the whole weighing
range is exhausted.
After removing the weighing container, the weight of the
weighing container appears as negative display.
The tare weight is saved until it is deleted.
Delete tare
TARE
Unload the balance and press the TARE button, the zero
display appears.

PCD-BA-e-1211 17
7.5Pre-Tare function
MODE
CAL
Using this function the weight of a tare vessel is stored. Even
after turning off/on the weighing balance will continue working
with the saved tare value.
In weighing mode put tare vessel on the weighing plate
Press repeatedly the MODE key until „PtArE“ flashing
appears.
Use SET key to store the current weight on the weighing
plate as a PRE-TARE value.
Delete PRE-TARE
value
MODE
CAL
Unload the balance and set the TARE button to zero
Press repeatedly the MODE key until „PtArE“ flashing
appears.
Use the SET key to confirm. The PRE-TARE value is
deleted, the zero display appears.
7.6 Plus/minus weighings
TARE
For example unit weight control, fabrication control etc.
Put the nominal weight on the weighing plate and tare
using the TARE button.
Remove the nominal weight
Put the test objects subsequently on the weighing plate,
the respective deviation from the nominal weight is
displayed with the respective sign to „+“ and „-“.
According to the same procedure also packages with the
same weight can be produced, referring to a nominal
weight.
Back to weighing mode by pressing the TARE button.

18 PCD-BA-e-1211
7.7 Parts counting
MODE
CAL
SET
M
During piece counting parts can either be counted into a
container or out of a container. To count a greater number of
parts the average weight per part has to be determined with a
small quantity (reference quantity).
The larger the reference quantity, the higher the counting
exactness. High reference must be selected for small parts or
parts with considerably different sizes.
The larger the reference quantity, the more accurate the parts
counting.
The process has four steps:
Tare the weighing container
Determine the reference unit
Original weighing of reference weight
Count the items
In weighing mode press MODE key shortly. Reference
piece number „5PCS“appears flashing.
By pressing the MODE button several times other
reference quantities 5, 10, 20, 25 and 50 can be called up.
Place as many pieces to count on the weighing plate as the
set reference quantity requires.
Use the SET key to confirm. The balance is now in parts
counting mode counting all units on the weighing plate.
Back to weighing mode by
pressing the MODE button.
Error message „Er 1“
Piece below minimum weight of piece (See chpt. 1
“Technical specifications“): Press MODE key and restart
reference determination.
Taring
The tare vessels can also be used for piece counting.
Before starting piece counting use the TARE
button to tare out the container.

PCD-BA-e-1211 19
7.8 Net-total weighing
SET
M
It is useful if a mixture of several components is weighed into a
tare vessel and finally the sum weight of all weighed
components is necessary for control purposes (net-total, i.e.
the weight of the tare vessel).
Example:
1. Place tare container on the weighing plate. Press the TARE
button, the zero display disappears.
2. Weigh-in component . Press the SET button, the zero
display disappears. [] is displayed on the right border of
the display.
3. Weigh-in component and press SET key. Net-total (sum
weight of the components and ) is displayed.
4. Press the SET button, the zero display disappears.
5. Weigh-in component and press SET key. Net-total (sum
weight of the components and and .) is displayed.
If necessary, also fill the formula up to the desired final
value. For every component more repeat the steps 4-5.
Back to weighing mode by pressing the TARE button.

20 PCD-BA-e-1211
7.9 Percent determination
MODE
CAL
SET
M
Percentage calculation facilitates weight display in percent
related to a reference weight equivalent to 100 %.
In weighing mode press MODE key repeatedly,
until “100 %“ is displayed flashing.
Put a reference weight which corresponds to 100 %.
Store by pressing the SET key. If the display stops
flashing, remove the reference weight.
Place goods to be weighed on balance.
The weight of the sample is displayed in percentage in
terms of the reference weight.
Back to weighing mode by pressing the MODE button.