Kern PLJ 600-2GM, PLJ 6000-1GM User guide
KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: info@kern-sohn.com
Tel: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating instruction
Precision balance
KERN PLJ-GM
Version 1.2
03/2013
GB
PLJ-GM-BA-e-1312
2
GB
KERN PLJ-GM
Version 1.2 03/2013
Operating instruction
Precision balance
Table of Contents
1 Technical data ................................................................................................ 4
2 Declaration of conformity ............................................................................. 5
3 Basic Information (General) .......................................................................... 6
3.1 Proper use ................................................................................................................................. 6
3.2 Improper Use............................................................................................................................. 6
3.3 Warranty .................................................................................................................................... 6
3.4 Monitoring of Test Resources ................................................................................................. 7
4 Basic Safety Precautions .............................................................................. 7
4.1 Pay attention to the instructions in the Operation Manual .................................................. 7
4.2 Personnel training .................................................................................................................... 7
5 Transport and storage ................................................................................... 7
5.1 Testing upon acceptance ........................................................................................................ 7
5.2 Packaging / return transport ................................................................................................... 8
6 Unpacking, Setup and Commissioning ..................................................... 10
6.1 Installation Site, Location of Use .......................................................................................... 10
6.2 Unpacking ............................................................................................................................... 10
6.2.1 Remove the transportation lock ................................................................................................ 10
6.2.2 Setup ........................................................................................................................................ 11
6.2.3 Scope of delivery ...................................................................................................................... 11
6.3 Mains connection ................................................................................................................... 11
6.4 Connection of peripheral devices ......................................................................................... 11
6.5 Initial Commissioning ............................................................................................................ 11
6.5.1 Stability display ......................................................................................................................... 11
6.5.2 Balance zero display ................................................................................................................. 12
6.6 Adjustment .............................................................................................................................. 12
6.6.1 Automatic adjustment with internal weight ............................................................................... 12
6.6.2 Sequence of adjustment after the balance having been switched on: ..................................... 12
6.6.3 Sequence of temperature-controlled adjustment: .................................................................... 13
6.6.4 Sequence of time-controlled adjustment: ................................................................................. 13
6.6.5 Manual adjustment with internal weight .................................................................................... 13
6.7 Verification .............................................................................................................................. 14
6.8 Underfloor weighing ............................................................................................................... 15
7 Operation ...................................................................................................... 16
7.1 Operating elements ................................................................................................................ 16
7.1.1 Backlit display ........................................................................................................................... 16
7.1.2 Keyboard overview ................................................................................................................... 16
7.1.3 Overview of display ................................................................................................................... 17
PLJ-GM-BA-e-1312
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8 User menu .................................................................................................... 19
8.1 Keyboard overview in menu .................................................................................................. 20
8.2 Calling a menu / jumping back to weighing mode .............................................................. 20
8.2.1 Calling up menu ........................................................................................................................ 20
8.2.2 Storing / jumping back to weighing mode ................................................................................. 21
8.3 Weighing ................................................................................................................................. 21
8.3.1 Simple weighing ........................................................................................................................ 21
8.3.2 Standard weighing unit ............................................................................................................. 22
8.4 Taring ....................................................................................................................................... 23
8.5 P4 Func – operating modes ................................................................................................... 24
8.5.1 Settings for menu item P4.1 FFun for “ALL” ............................................................................. 26
8.6 P5 othr – operating parameter .............................................................................................. 27
8.6.1 Background lighting for mains operation .................................................................................. 27
8.6.2 Intensity of background lighting for battery operation ............................................................... 28
8.6.3 Keyboard sound for pressed key .............................................................................................. 29
8.6.4 Automatic cutout ....................................................................................................................... 30
8.6.5 Battery status display ................................................................................................................ 30
8.6.6 Charge display .......................................................................................................................... 31
8.7 P1 rEAd – basic settings ........................................................................................................ 32
8.7.1 Filter settings ............................................................................................................................ 32
8.7.2 Auto Zero .................................................................................................................................. 33
8.7.3 Tare function ............................................................................................................................. 34
8.7.4 Weighing value - averaging ...................................................................................................... 35
8.8 Parts counting ........................................................................................................................ 36
8.9 Tolerance weighing ................................................................................................................ 38
8.10 Percent determination ............................................................................................................ 39
8.10.1 Determination of the reference weight by weighing ............................................................. 39
8.10.2 Calculate the reference weight by numeric input ................................................................. 40
8.11 Automatic taring ..................................................................................................................... 41
8.12 Storing maximum value of weight ........................................................................................ 42
8.13 Adding function ...................................................................................................................... 43
8.14 Animal weighing function ...................................................................................................... 44
8.15 Save the pretaring value ........................................................................................................ 45
8.15.1 Call-up pretaring value from memory ................................................................................... 46
9 Data output RS 232 C .................................................................................. 47
9.1 Technical data ......................................................................................................................... 47
9.2 Description of data output type ............................................................................................ 47
9.3 Input minimum weight for some functions .......................................................................... 48
9.4 Baud rate for RS232 interface ............................................................................................... 49
9.5 Communication protocol / remote control commands ....................................................... 50
9.5.1 Response messages from balance .......................................................................................... 50
9.5.2 Manual output ........................................................................................................................... 51
9.5.3 Continuous output ..................................................................................................................... 52
10 Error messages ............................................................................................ 52
11 Service, maintenance, disposal .................................................................. 53
11.1 Cleaning................................................................................................................................... 53
11.2 Service, maintenance ............................................................................................................. 53
11.3 Disposal ................................................................................................................................... 53
12 Instant help ................................................................................................... 54
PLJ-GM-BA-e-1312
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KERN
PLJ 600-2GM
PLJ 6000-1GM
Readability (d)
0.01 g
0.1 g
Weighing range (max)
600 g
6 kg
Taring range (subtractive)
600 g
6 kg
Reproducibility
0.02 g
0.2 g
Linearity
0.02 g
0.2 g
Minimum unit weight at
piece counting
0.01 g
0.1 g
Warm-up time
2 hours
2 hours
Adjustment weight
internal
internal
Wind protection
yes
no
Reference quantities at
piece counting
10, 20, 50, 100, freely selectable
Weighing Units
g, kg
Stabilization time (typical)
3 sec.
Operating temperature
+ 15° C .... + 30° C
Humidity of air
max. 80 % (not condensing)
Underfloor weighing
-
Standard hooks
Housing (B x D x H) mm
210 x 335 x 88
Weighing plate (stainless
steel) mm
128 x 128
195 x 195
Weight kg (net)
3.6 kg
1 Technical data
PLJ-GM-BA-e-1312
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KERN & Sohn GmbH
D-72322 Balingen-Frommern
Postfach 4052
E-Mail: info@kern-sohn.de
Tel: 0049-[0]7433- 9933-0
Fax: 0049-[0]7433-9933-149
Internet: www.kern-sohn.de
D
Konformitätserklärung
Wir erklären hiermit, dass das Produkt, auf das sich diese Erklärung bezieht,
mit den nachstehenden Normen übereinstimmt.
GB
Declaration of
conformity
We hereby declare that the product to which this declaration refers conforms
with the following standards.
CZ
Prohlášení o
shode
Tímto prohlašujeme, že výrobek, kterého se toto prohlášení týká, je v souladu
s níže uvedenými normami.
E
Declaración de
conformidad
Manifestamos en la presente que el producto al que se refiere esta
declaración está de acuerdo con las normas siguientes
F
Déclaration de
conformité
Nous déclarons avec cela responsabilité que le produit, auquel se rapporte la
présente déclaration, est conforme aux normes citées ci-après.
I
Dichiarazione di
conformitá
Dichiariamo con ciò che il prodotto al quale la presente dichiarazione si
riferisce è conforme alle norme di seguito citate.
NL
Conformiteitverklaring
Wij verklaren hiermede dat het product, waarop deze verklaring betrekking
heeft, met de hierna vermelde normen overeenstemt.
P
Declaração de
conformidade
Declaramos por meio da presente que o produto no qual se refere esta
declaração, corresponde às normas seguintes.
PL
Deklaracja
zgodności
Niniejszym oświadczamy, że produkt, którego niniejsze oświadczenie dotyczy,
jest zgodny z poniższymi normami.
RUS
Заявление о
соответствии
Мы заявляем, что продукт, к которому относится данная декларация,
соответствует перечисленным ниже нормам.
EU Directive
Standards
2004/108/EC
EN 61326-1:2006
2006/95/EC
EN 61010-1:2011/AC:2002
Signatur
Signature
Datum
Date
21.03.2013
Ort der Ausstellung
Place of issue
72336 Balingen
Albert Sauter
KERN & Sohn GmbH
Geschäftsführer
Managing director
KERN & Sohn GmbH, Ziegelei 1, D-72336 Balingen, Tel. +49-[0]7433/9933-0
Fax +49-[0]7433/9933-149, E-Mail: info@kern-sohn.com, Internet: www.kern-sohn.com
2 Declaration of conformity
Declaration of conformity
EC-Konformitätserklärung EC-Declaration of -Conformity
EC- Déclaration de conformité EC-Declaración de Conformidad
EC-Dichiarazione di conformità EC-Conformiteitverklaring
EC- Declaração de conformidade EC- Prohlášení o shode
EC-Deklaracja zgodności EC-Заявление о соответствии
Electronic Balance: KERN PLJ ..GM/..NM
PLJ-GM-BA-e-1312
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3 Basic Information (General)
3.1 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.
3.2 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 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.
3.3 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
PLJ-GM-BA-e-1312
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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.
3.4 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.
4 Basic Safety Precautions
4.1 Pay attention to the instructions in the Operation Manual
4.2 Personnel training
The appliance may only be operated and maintained by trained personnel.
5 Transport and storage
5.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
PLJ-GM-BA-e-1312
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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.
5.2 Packaging / return transport
PLJ-GM-BA-e-1312
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1
Secure all parts such as glass wind screen, weighing platform,
power unit etc. against shifting and damage.
1. Mains adapter
2. Weighing pan (128 x 128 mm)
3. Carrier weighing pan
4. Weighing pan (195 x 195 mm)
2
3 3
3 3
4
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6 Unpacking, Setup and Commissioning
6.1 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.
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.
6.2 Unpacking
Carefully remove the balance from the packaging, remove plastic cover and setup
balance at the intended workstation.
6.2.1 Remove the transportation lock
Remove the transportation lock on the bottom side of the balance (see fig.)
PLJ-GM-BA-e-1312
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Level balance with foot screws until the air bubble of the
water balance is in the prescribed circle.
Balance
Weighing plate
Mains power supply
Operating Manual
Protective cover
Hook for underfloor weighing (only model PLJ 6000-1GM)
6.2.2 Setup
6.2.3 Scope of delivery
Serial accessories:
6.3 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.
6.4 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.
6.5 Initial Commissioning
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, accumulator or battery).
The accuracy of the balance depends on the local acceleration of gravity.
Strictly observe hints in chapter Adjustment.
6.5.1 Stability display
If the display shows the stability display [ ] the balance is in a stable status. If the
status is instable the [ ] display disappears.
PLJ-GM-BA-e-1312
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TARE
After the balance having performed a self check, automatic
adjustment will start and in the display appears „CALib“
During the adjustment process „CAL-A“ is displayed
If the adjustment process is finished, the balance will
automatically return into weighing mode.
6.5.2 Balance zero display
If an exact zero reading is not displayed on the balance in spite of the weighing dish
being empty, press the
and the balance will start resetting to zero [ ] . To
reset the balance to zero, the may be used if the load amounts to less than 2%
of the maximum weight. If the load exceeds 2% error message ERR2 will be
displayed.
6.6 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.
6.6.1 Automatic adjustment with internal weight
With the internal adjustment weight, the weighing accuracy can be checked and readjusted at any time.
The automatic adjustment function is always enabled. You can start adjustment at
any time by pressing the CAL-key manually.
Automatic adjustment is started each time
after the weighing balance was disconnected from the mains
when temperature changes take place
at the end of a time interval
6.6.2 Sequence of adjustment after the balance having been switched on:
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At a change in temperature of 3°C the balance announces
the internal adjustment via the display „CALib“
The balance starts the adjustment process and displays
„CAL-t“.
If the adjustment process is finished, the balance will
automatically return into the weighing mode.
After 3 hours, the automatic adjustment is started. „CALib“
is displayed.
The balance starts the adjustment process and displays
„CAL-C“.
If the adjustment process is finished, the balance will
automatically return into the weighing mode.
In weighing mode press
TARE
. „CALib“ appears.
During the adjustment process „CAL-H“ is displayed
If the adjustment process is finished, the balance will
automatically return into the weighing mode.
Use the
F
button to cancel the adjustment process at any
time.
is briefly displayed.
Then the balance returns automatically into weighing mode.
6.6.3 Sequence of temperature-controlled adjustment:
6.6.4 Sequence of time-controlled adjustment:
6.6.5 Manual adjustment with internal weight
PLJ-GM-BA-e-1312
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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.
Position of the official seals
6.7 Verification
General:
According to the EU guideline 90/384/EEC balances must be verified officially if they
are to be used as follows (legally regulated area):
a) For commercial transactions if the price of goods is determined by weighing
b) For the production of medines in pharmacies as well as for analyses in the
medical and pharmaceutical laboratory
c) For official purposes
d) For the production of finished packages
In case of doubt, please contact your local office of weights and measures.
Verification information
An EU qualification approval is available for those balances marked as appropriate
for verification in the technical data. In the event that the balance is applied in an
area subject to verification as described above, it must be verified and re-verified at
regular intervals.
Re-verification of a balance is carried out in compliance with the respective legal
provisions of the states. The term of verification validity for balances in Germany, for
example, is normally 2 years.
The legal provisions of the country of use are to be observed.
Position of the “official seals“:
PLJ-GM-BA-e-1312
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CAUTION
Always ensure that all suspended objects are stable enough to hold the desired
goods to be weighed safely (danger of breaking).
Never suspend loads that exceed the stated maximum load (max) (danger of
breaking)
Always ensure that there are no persons, animals or objects that might be
damaged underneath the load.
NOTICE
After completing the underfloor weighing the opening on the bottom of the balance
must always be closed (dust protection).
!
6.8 Underfloor weighing
Objects unsuitable for placing on the weighing scale due to size or shape may be
weighed with the help of the flush-mounted platform.
Proceed as follows:
Switch off balance.
Open the closing lid on the bottom of your balance.
Suspend hook for underfloor weighing carefully and completely.
Place your balance over an opening.
Suspend the goods to be weighed from the hook and carry out the weighing.
Fig. 1: Setup of balance for underfloor weighing
PLJ-GM-BA-e-1312
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Button
Function
OFF
ON
Turn on/off
F
Function key (to select operating mode)
PRINT
Printout of the weighed value on an external
appliance (printer or PC)
Set weight display at zero
TARE
Taring
TARE
Start manual adjustment
7 Operation
7.1 Operating elements
7.1.1 Backlit display
Very contrastful display which can also be red in the darkness.
7.1.2 Keyboard overview
PLJ-GM-BA-e-1312
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Display
Description
FIL
Filter setting
bAud
RS 232 interface speed
PCS
Parts counting
HiLo
+/- tolerance with respect to reference weight
rEPL
Automatic display printout
StAb
Printing will be started as soon as the stability
display appears
Auto
Monitoring weight display at 0
t1
Automatic cutout
toP
Maximum weight storage
→0←
Weight display at 0
[ ]
Display value is stable
PCS
Display operating mode “piece counting”
kg (g)
Display operating mode “weighing”
Low battery level / battery charge status or
damaged mains adaptor
Net
Balance is tared
Min
g
+/- tolerance with respect to reference weight entry
of lower limit or weight below tolerance
The balance carries out an automatic check, when started. First this involves all
display elements being lit up. Next the software version appears.
After the message –test- , SLA will appear which indicates the use of rechargeable
batteries.
7.1.3 Overview of display
PLJ-GM-BA-e-1312
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