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
Price computing scale
KERN RPB-N
Version 1.4
06/2009
GB
RPB-N-BA-e-0914
GB
KERN RPB-N
Version 1.4 06/2009
Operating instruction
Price computing scale
Contents
1 Technical data __________________________________________________ 4
2 Declaration of conformity ________________________________________ 7
3 Appliance overview _____________________________________________ 8
3.1 Overview of display ______________________________________________ 10
3.1.1 Display weight _______________________________________________________ 11
3.1.2 Display basic price ____________________________________________________ 11
3.1.3 Display sales price ____________________________________________________ 11
3.2 Keyboard overview_______________________________________________ 12
4 Basic Information (General)______________________________________ 13
4.1 Proper use______________________________________________________ 13
4.2 Improper Use ___________________________________________________ 13
4.3 Warranty _______________________________________________________ 13
4.4 Monitoring of Test Resources ______________________________________ 14
5 Basic Safety Precautions ________________________________________ 14
5.1 Pay attention to the instructions in the Operation Manual_______________ 14
5.2 Personnel training _______________________________________________ 14
6 Transport and storage __________________________________________ 14
6.1 Testing upon acceptance _________________________________________ 14
6.2 Packaging ______________________________________________________ 14
7 Unpacking, Setup and Commissioning ____________________________ 15
7.1 Installation Site, Location of Use ___________________________________ 15
7.2 Unpacking ______________________________________________________ 15
7.2.1 Setup ______________________________________________________________ 15
7.2.2 Scope of delivery _____________________________________________________ 16
7.3 Mains connection ________________________________________________ 16
7.4 Battery power supply _____________________________________________ 16
7.5 Initial Commissioning ____________________________________________ 16
7.6 Adjustment _____________________________________________________ 17
7.7 Verification _____________________________________________________ 19
7.7.1 Jumper and seals _____________________________________________________ 20
8 Operation _____________________________________________________ 21
8.1 Switch on/off and set zero _________________________________________ 21
RPB-N-BA-e-0914
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8.2 Simple weighing _________________________________________________ 21
8.3 Weighing with taring _____________________________________________ 22
8.4 Weighing with price determination__________________________________ 23
8.4.1 Manual input of a basic price ____________________________________________ 23
8.4.2 Saving and calling up a basic price _______________________________________ 23
8.5 AUTO CLEAR ___________________________________________________ 25
9 Display background illumination _________________________________ 26
10 AUTO OFF function___________________________________________ 27
11 Data Interface RS 232C ________________________________________ 28
11.1 Technical data___________________________________________________ 28
11.2 Pin allocation for the balance output socket (front view)________________ 28
11.3 Parameter selection ______________________________________________ 28
11.4 Setting the date/time _____________________________________________ 29
11.5 Remote control instructions _______________________________________ 29
12 Service, maintenance, disposal _________________________________ 30
12.1 Cleaning _______________________________________________________ 30
12.2 Service, maintenance_____________________________________________ 30
12.3 Disposal________________________________________________________ 30
13 Instant help _________________________________________________ 31
RPB-N-BA-e-0914
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1 Technical data
KERN RPB 3K1NM RPB 6K2NM
Readability (d) 1g 2 g
Weighing range (max) 3 kg 6 kg
Minimum load 20 g 40 g
Verification value 1 g 2 g
Verification class III III
Reproducibility 1 g 2 g
Linearity ± 2 g ± 4 g
Stabilization time 2 sec. 2 sec.
Recommended adjusting
weight (not supplied)
3 kg (M2) 6 kg (M2)
Warm up time (operating
temperature)
10 min
Net weight (kg) 4,3
Dimensions of the housing
(B x D x H)
315 x 355 x 110
Weighing plate, stainless
steel
225 x 275 mm
Weighing unit €/kg; €/g
Permissible ambient condition
-10° C to 40° C
Humidity of air 15% - 85% (not condensing)
Voltage 230 V (AC)
Battery Operating time ca. 70 hrs. / loading time ca. 12 hrs.
Data interface RS 232C
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KERN RPB 15K5NM RPB 30K10NM RPB 3K1HNM
Readability (d) 5 g 10 g 1g
Weighing range (max) 15 kg 30 kg 3 kg
Minimum load 100 g 200 g 20 g
Verification value 5 g 10 g 1 g
Verification class III III III
Reproducibility 5 g 10 g 1 g
Linearity ± 10 g ± 20 g ± 2 g
Stabilization time 2 sec. 2 sec. 2 sec.
Recommended adjusting
weight (not supplied)
15 kg (M2) 30 kg (M2) 3 kg (M2)
Net weight (kg) 4,3 4,3 4,7
Dimensions of the housing
(B x D x H)
315 x 355 x 110 315 x 355 x 110
315 x 355 x 110
without tripod
315 x 355 x 540
with tripod
Weighing plate, stainless
steel
225 x 275 mm
Warm up time (operating
temperature)
10 min
Weighing unit €/kg; €/g
Permissible ambient condition
-10° C to 40° C
Humidity of air 15% - 85% (not condensing)
Voltage 230 V
Battery Operating time ca. 70 hrs. / loading time ca. 12 hrs.
Data interface RS 232C
RPB-N-BA-e-0914
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KERN RPB 6K2HNM RPB 15K5HNM RPB 30K10HM
Readability (d) 2 g 5 g 10 g
Weighing range (max) 6 kg 15 kg 30 kg
Minimum load 40 g 100 g 200 g
Verification value 2 g 5 g 10 g
Verification class III III III
Reproducibility 2 g 5 g 10 g
Linearity ± 4 g ± 10 g ± 20 g
Stabilization time 2 sec. 2 sec. 2 sec.
Recommended adjusting
weight (not supplied)
6 kg (M2) 15 kg (M2) 30 kg (M2)
Warm up time (operating
temperature)
10 min
Net weight (kg) 4,7
Dimensions of the housing
(B x D x H)
315 x 355 x 110 without tripod
315 x 355 x 540 with tripod
Weighing plate, stainless
steel
225 x 275 mm
Weighing unit €/kg; €/g
Permissible ambient condition
-10° C to 40° C
Humidity of air 15% - 85% (not condensing)
Voltage 230 V
Battery Operating time ca. 70 hrs. / loading time ca. 12 hrs.
Data interface RS 232C
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2 Declaration of conformity
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
Konformitätserklärung
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 RPB..NM
Mark applied EU Directive Standards
89/336/EEC EMC
73/23/EEC Low Voltage
EN 61326
EN 60950
EN 61010
Date: 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
RPB-N-BA-e-0914
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3 Appliance overview
Models without vertical display:
Mains cable connection
Air bubble
Second display on customer's side
Battery
compartment
ON/OFF switch
RS-232C
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Models with vertical display:
Mains cable connection
Air bubble
RS-232C
ON/OFF
switch
Rotatable vertical
display
Backside
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3.1 Overview of display
Operator display balance:
Weight Basic price Sales price
Vertical display for models with tripod:
Weight
Basic price
Sales price
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3.1.1 Display weight
Here, the weight of your goods is displayed.
The arrows above the symbols show:
Battery very low
NET
Net weight
Stability display
a
Zeroing display
3.1.2 Display basic price
Here, enter your basic price in €/kg or €/100 g via keyboard. The basic price can be
switched to €/kg or €/100 g.
The arrows above the symbols show:
AUTO CLEAR
Set basic price is deleted automatically
when balance is unloaded
€/100 g Saved basic price in €/100 g
€/kg Saved basic price in €/kg
3.1.3 Display sales price
Here the sales price is displayed in Euro [€].
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3.2 Keyboard overview
Choice Function
• Number keys, enter basic price /PLU
• Delete key
• Saving and calling up the two most frequently used PLU
values
• Saving and calling up the other PLU values
• Taring key
• Save
• Zeroing key
• Back to weighing mode
• Set basic price is deleted automatically when balance is
unloaded
• Switch-over key €/kg or €/100 g
PRINT
• Output of the weight to an external appliance
• Parameter selection
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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
• Battery
• Operating Manual
7.3 Mains connection
Power supply is carried out by means of the supplied power cable (220 V, 50-60 Hz).
7.4 Battery power supply
The battery is charged via the internal 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. 10) to protect the
battery.
If an arrow shows in the weight display [] 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
adaptor 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 Initial Commissioning
A warming up time of 5 minutes 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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7.6 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.
Procedure when adjusting:
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. 7.7.1).
Observe stable environmental conditions. A warming up time of ca. 10 minutes is
required for stabilization. Ensure that there are no objects on the weighing plate.
Operation Display
Switch on balance
PN
Use the number keys to enter password
„0000“:
confirmar
PN----
Ø
VnLQAD
Ensure that there are no objects on the
weighing plate.
The required adjustment weight is
displayed:
LQAD 6 HLOS
RPB-N-BA-e-0914
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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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7.7 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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7.7.1 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 Operation
8.1 Switch on/off and set zero
Operation Display
1. Switch on balance
Press ON/OFF switch and hold briefly (at
the bottom right side of the balance)
The balance will carry out a self-test
As soon as the weight display shows "0"
in all the three display windows your balance is ready to weigh.
2. Zeroing
z000
NET
a
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
z500
NET
a
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.
Operation Display
Place empty tare container on the weighing plate. The total weight of the container is displayed.
z500
NET
a
Reset display to "0":
z000
NET
a
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.
z750
NET
a
The taring process can be repeated any number of times, e.g. when adding several
components for a mixture (adding).
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8.4 Weighing with price determination
As soon as the goods to be weighed are placed on the balance and the basic price
has been set the price is calculated automatically and displayed in the provided field.
8.4.1 Manual input of a basic price
Display
Operation
Weight [kg] Basic price Price [ € ]
If you are using a weighing
container, tare
0.000 0.00 0.00
Place goods to be weighed
on balance
1.300 0.00 0.00
Enter basic price via number keys; sales price is
automatically calculated
1.300 5.00 6.50
8.4.2 Saving and calling up a basic price
• The balance is able to save up to 102 PLU values as basic price.
• The PLU value may be saved as €/kg or €/100 g.
• The keys M1 and M2 are used to save /call up the two most frequently used PLU
values
• The other PLU values are saved/called up via the M3..-key.
Saving a basic price via the direct price keys M1, M2:
Display
Operation
Weight [kg] Basic price Price [ € ]
Enter a basic price via keyboard
0.000 2.00 0.00
until there is a short beep (3
sec), then release the key
PLV 1 SAWED
Entry for M2 is carried out in the same way
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Saving a unit price using the M3 key:
1. PLU 3
Display
Operation
Weight [kg] Unit price Price [ € ]
Enter your unit price using the
keyboard, either in €/kg or
€/100 g
0.000 2.00 0.00
until there is a short beep (3
sec), then release the key immediately
SAWE PQS 00
Wait until the display shows
“PLU 3 saved”. The unit price
will be automatically saved
under PLU 3.
PLV 3 SAWED
2. Further PLU X values
Display
Operation
Weight [kg] Unit price Price [ € ]
Enter your unit price using the
keyboard, either in €/kg or
€/100 g
0.000 2.00 0.00
until there is a short beep (3
sec), then release the key immediately
SAWE PQS 00
Enter the numbers within 3
sec of your desired PLU or
leave the value 00 for [PLU 3]
17
The unit price is saved at the
desired position. An acoustic
signal acknowledges that the
PLU has been saved.
PLV 17 SAWED
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To modify values which have been saved at a certain PLU position, simply repeat the
procedure.
Call up a unit price:
Display
Operation
Weight [kg] Unit price Price [ € ]
LOAD PQS 00
+ PLU position
LOAD PQS 17
The unit price saved at this
position is displayed
0.000 2.00 0.00
Note: For the M1, M2 and M3 keys (no entry at position 00) only press the respec-
tive key to display the saved unit price.
8.5 AUTO CLEAR
Use the key to activate the AUTO-CLEAR function; at the same time the arrow
above "AUTO CLEAR" appears in the display.
Remove the goods to be weighed from the weighing plate, this way the set basic
price will remain.
For activated AUTO-CLEAR function the set basic price is automatically deleted
when the balance is unloaded.
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9 Display background illumination
Operation Display
Hold for 4 sec
ELAU
To select your setting:
Press until your desired setting is
displayed
1. Background illumination off
EL OFF
2. Background illumination on
EL On
3. Automatic background illumination on when weighing pate is
loaded
EL AU
Saving your settings:
or return to weighing:
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10 AUTO OFF function
For battery operation the balance has an automatic switch-off function which can be
activated or deactivated in the menu. Proceed as follow
Operation Display
Switch on balance and press the
0 key during self test
SLEEP NODE
To select your setting:
Press until your desired setting is
displayed
1. Automatic switch off deactivated
SLEEP NODE 0
2. Automatic switch off after 1 min
SLEEP NODE 1
3. Automatic switch off after 5 min
SLEEP NODE 5
4. Automatic switch off after 10 min
SLEEP NODE 10
Saving your settings:
or return to weighing:
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11 Data Interface RS 232C
As standard, the balance is fitted with an RS 232C interface.
11.1 Technical data
ASCII code
8 data bits
no parity bit
baud rate 4800 baud
11.2 Pin allocation for the balance output socket (front view)
1
2
34
5
6789
Pin 2: Receive data
Pin 3: Transmit data
Pin 5: Signal ground
11.3 Parameter selection
To access the menu, hold the PRINT key pressed for 4 seconds
Use the PRINT key for parameter selection
Confirm your settings using the TARE key, the next menu option will be dis-
played
Display
Weight Unit price Total
price
Selection options
Function
Port on on or oFF
RS 232C on/off
4800 bPS 600, 1200,
2400,4800,
9600 or 19200
Baud rate
LAbEL 1 1 or 2
Output format selection
CoUntr Y E nGLiSH EnGLiSH,
FrEnCH,
GErMAn or
SPAniSH
Language selection
StErLi ng EUroPE,
dOLLAr,
StErLinG
Currency selection
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Example of output format (German/Euro):
Label 1
08/01/2007 07:56:38
GRUNDPREIS NETTO SUMME
€ 1.20/100g 0.200 kg € 2.40
Label 2
DATUM 08/01/2007
ZEIT 07:56:38
GRUNDPREIS € 1.20/100g
NETTO 0.200 kg
SUMME € 2.40
11.4 Setting the date/time
During power up of the balance, press the C key and hold it pressed until the
revision number of the balance is displayed. Then release the C key, the set
date/time is displayed:
“rtC“ „08,01,07“ „16,41,35”
Press the C key, the current time format “H-m-S” is displayed.
Enter the time (24 hour format) using the number keys
(e.g. 3:41 PM = ”154100)
Confirm the entry with the TARE key, the set date is displayed
Select the desired format with the PRINT key:
“Y-m-d“ = Year-Month-Day
“m-d-Y“ = Month-Day-Year
“d-m-Y“ = Day-Month-Year
Confirm the selected format with the TARE key
Enter the date using the number keys
Confirm the entry with the TARE key. If an entry is not permitted (e.g.
34.12.07) then the error messages Err1 (time) or Err 2 (date) will be displayed. The balance returns to weighing mode automatically.
11.5 Remote control instructions
T<cr><lf>
Taring
Z<cr><lf>
Zeroing
P<cr><lf>
Data output
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12 Service, maintenance, disposal
12.1 Cleaning
Before cleaning, please disconnect the appliance from the operating voltage.
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 and
wipe 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 Service, maintenance
The appliance may only be opened by trained service technicians who are authorized
by KERN.
Before opening, disconnect from power supply.
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.
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13 Instant help
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.
Fault Possible cause
• The balance is not switched on.
• The mains supply connection has been
interrupted (mains cable not plugged
in/faulty).
• Power supply interrupted.
• Batteries are inserted incorrectly or empty
The displayed weight does not glow.
• No batteries inserted.
• Draught/air movement
• Table/floor vibrations
The displayed weight is permanently
changing
• Weighing plate has contact with other
objects.
• Electromagnetic fields / static charging
(choose different location/switch off interfering device if possible)
• The display of the balance is not at zero
• Adjustment is no longer correct.
The weighing result is obviously incorrect
• Great fluctuations in temperature.
• 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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