Kern WTB 1K4N - Letter scale

WTB 1K4N - Letter scale Kern - Free user manual and instructions

Find the device manual for free WTB 1K4N Kern in PDF.

📄 107 pages English EN Download 💬 AI Question 10 questions ⚙️ Specs
Notice Kern WTB 1K4N - page 49
View the manual : Français FR Deutsch DE English EN
Pick your language and provide your email: we'll send you a specifically translated version.
Product type Precision electronic letter scale
Brand Kern
Model WTB 1K4N
Weighing range (max) 1.5 kg
Readability (d) 0.2 g
Repeatability 0.2 g
Linearity ±0.4 g
Units of measurement g (grams)
Platform dimensions Stainless steel, 262 x 202 mm
Housing dimensions 286 x 316 x 126.5 mm
Net weight 3.2 kg
Power supply Power adapter 12 V / 500 mA (110-230 V AC) and integrated rechargeable battery
Battery life 30 h (backlight on) / 50 h (backlight off); charging time 12 h
Display LCD with backlight, digit height 25 mm
IP protection rating IP65 (dust-tight and resistant to water splashes)
Operating temperature -10°C to +40°C
Main functions Simple weighing, taring, zero setting, weighing with tolerance range, multi-tare function, adjustable auto-off
Cleaning Damp cloth with mild soap; avoid solvents; remove battery before cleaning
Safety Do not use in explosive atmosphere; do not overload; do not modify the device
Recommended calibration weight 1500 g (class M1) - not included
Included accessories Weighing platform, mounting bracket, screws, Allen key, power adapter, user manual

Frequently Asked Questions - WTB 1K4N Kern

How to turn on the Kern WTB 1K4N scale?
Press the ON/OFF key. The scale performs a self-test (display shows 00..99..), then displays 0.0 with the stability symbol. It is then ready to weigh.
How to perform taring (zeroing the container)?
Place the empty container on the platform, then press the TARE key. The display returns to zero and the NET symbol appears. The weight of the container is stored. Then add the material to be weighed: the net weight is displayed.
What to do if the display does not stabilize or constantly changes?
Possible causes: drafts, vibrations, contact of the platform with objects, electromagnetic fields. Check the environment, place the scale on a stable surface, away from drafts and sources of interference.
How to perform an adjustment (calibration) of the scale?
Turn on the scale and during the self-test, hold the TARE key until F1 CAL appears. Follow the instructions: press →0← to confirm UnLod, then place the calibration weight (1500 g, class M1) and press →0← again. Remove the weight after the self-test.
How to use the weighing with tolerance range function?
In weighing mode, press TARE for about 3 seconds. First enter the upper limit (the digits flash), confirm with →0←, then enter the lower limit and confirm. The scale then displays in color (red/orange/green) depending on whether the weight is above, below, or within tolerance.
How to set the auto-off (Auto-Off)?
In the menu, navigate to F5 oFF. Use TARE to choose between 3, 5, 15 minutes or off (disabled). Confirm with →0←.
How to clean the Kern WTB 1K4N scale?
Unplug the device and remove the battery. Use a soft cloth slightly dampened with soapy water. Never use solvents. Avoid liquids entering the interior. Dry with a soft cloth.
What is the battery charging time and how to know if it is low?
Full charging time is about 12 hours. When the battery is low, a triangle appears above the capacity indicator. Plug in the power adapter to recharge.
How to enable or disable the backlight?
In weighing mode, press →0← for about 3 seconds. Use TARE to choose between bK-AU (automatic backlight) or bK-oF (backlight off). Confirm with →0←.
What does the error message 'Err4' mean?
Err4 indicates that the zero adjustment range is exceeded. Completely unload the platform and try again. If the problem persists, check that the platform is correctly installed.

User questions about WTB 1K4N Kern

0 question about this device. Answer the ones you know or ask your own.

Ask a new question about this device

The email remains private: it is only used to notify you if someone responds to your question.

No questions yet. Be the first to ask one.

Download the instructions for your Letter scale in PDF format for free! Find your manual WTB 1K4N - Kern and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. WTB 1K4N by Kern.

USER MANUAL WTB 1K4N Kern

Operating instructions

Compact balance

Contents

1 Technical data 3

1.1 Dimensions 7

2 Appliance overview 8

2.1 Overview of display 8

2.2 Keyboard overview 10

3 Basic Information (General) 11

3.1 Proper use 11

3.2 Improper Use 11

3.3 Warranty 11

4 Basic Safety Precautions 12

4.1 Pay attention to the instructions in the Operation Manual 12

4.2 Personnel training 12

5 Transport and storage 12

5.1 Testing upon acceptance 12

5.2 Packaging/return transport 12

6 Unpacking, Setup and Commissioning 13

6.1 Installation Site, Location of Use 13

6.2 Unpacking and placing 14

6.2.1 Scope of delivery 16

6.3 Rechargeable battery operation (optional) 16

6.3.1 Mains connection during rechargeable battery operation 18

6.4 Initial Commissioning 19

6.5 Type of protection IP65 19

7 Adjustment 19

7.1 Adjustment 19

7.1.1 Adjustment non verifiable models 20

7.1.2 Adjustment of verifiable models 21

7.2 Verification 22

7.2.1 Adjustment switch and seals 23

8 Operation 24

8.1 Weighing 24

8.2 Taring 24

8.3 Background illumination 25

8.4 Weighing with tolerance range 26

9 The menu 28

9.1 Navigation in the menu 28

9.2 Menu overview (locked in verifiable models) 29

9.3 Set auto-OFF function 31

9.4 Multi-Tare function 32

10 Error messages 32

11 Instant help 33

12 Service, maintenance, disposal 34

12.1 Cleaning 34

12.2 Service, maintenance 34
12.3 Disposal 34
13 Declaration of Conformity 34

1 Technical data

KERNWTB 1K -4NWTB 3K -4NWTB 6K -3N
Weighing range (max)1.5 kg3 kg6 kg
Readability (d)0.2 g0.5 g1 g
Reproducibility0.2 g0.5 g1 g
Linearity±0.4 g±1 g±2 g
Recommended adjustment weight, not added (class)1500 g (M1)3 kg (M1)6 kg (M1)
Stabilization time (typical)2 sec.
Unitsg
Warm-up time30 min.
Electric SupplyInput voltage: 110V-230V AC Power supply unit: 12 V, 500 mA
Rechargeable battery operationService life: background illumination ON: 30 h Background illumination off: 50 hours Loading time 12 h
Auto-Off (rechargeable battery)15 min., 5 min., 3 min., off
Display typeLCD with background illumination Character height 2.5 cm
Operating temperature-10° C .... + 40° C
Humidity of air0 % - 80 % (non-condensing)
Dimensions of weighing plate (Sinless steel) (mm)262 x 202
Casing dimensions286 x 316 x 126.5
Weight kg (net)3.2
IP protectionIP65
KERNWTB 10K -3NWTB 30K -3N
Weighing range (max)15 kg30 kg
Readability (d)2 g5 g
Reproducibility2 g5 g
Linearity±4 g±10 g
Recommended adjustment weight, not added (class)15 kg (M1)30 kg (M1)
Stabilization time (typical)2 sec.
Unitsg
Warm-up time30 min.
Electric SupplyInput voltage: 110V-230V AC Power supply unit: 12 V, 500 mA
Rechargeable battery operationService life: background illumination ON: 30 h Background illumination off: 50 hours Loading time: 12 h
Auto-Off (rechargeable battery)15 min., 5 min., 3 min., off
Display typeLCD, digit height 25 mm
Operating temperature-10°C ..., +40°C
Humidity of air0 % - 80 % (non-condensing)
Dimensions of weighing plate (Stainless steel) (mm)262 x 202
Casing dimensions286 x 316 x 126.5
Weight kg (net)3.2
IP protectionIP65
KERNWTB 1K-4NMWTB 3K-3NMWTB 6K-3NM
Weighing range (max)1.5 kg3 kg6 kg
Readability (d)0.5g1 g2 g
Reproducibility0.5 g1 g2 g
Linearity±0.5 g±1 g±2 g
Recommended adjustment weight, not added (class)1500 g (M3)3 kg (M3)6 kg (M3)
Stabilization time (typical)2 sec.
Unitsg
Warm-up time30 min.
Electric SupplyInput voltage: 110V-230V AC Power supply unit: 12 V, 500 mA
Rechargeable battery operationService life: background illumination ON: 30 h Background illumination off: 50 hours Loading time 12 h
Auto-Off (rechargeable battery)15 min., 5 min., 3 min., off
Display typeLCD with background illumination Character height 2.5 cm
Operating temperature-10° C .... +40° C
Humidity of air0% - 80% (non-condensing)
Dimensions of weighing plate (Sinless steel) (mm)262 x 202
Casing dimensions286 x 316 x 126.5
Weight kg (net)3.2
IP protectionIP65
KERNWTB 10K-3NMWTB 30K-2NM
Weighing range (max)15 kg30 kg
Readability (d)5 g10 g
Reproducibility5 g10 g
Linearity±5 g±10 g
Recommended adjustment weight, not added (class)15 kg (M3)30 kg (M3)
Stabilization time (typical)2 sec.
Unitsg
Warm-up time30 min.
Electric SupplyInput voltage: 110V-230V AC Power supply unit: 12 V, 500 mA
Rechargeable battery operationService life: background illumination ON: 30 h Background illumination off: 50 hours Loading time: 12 h
Auto-Off (rechargeable battery)15 min., 5 min., 3 min., off
Display typeLCD, digit height 25 mm
Operating temperature-10°C ..., +40°C
Humidity of air0 % - 80 % (non-condensing)
Dimensions of weighing plate (Stainless steel) (mm)262 x 202
Casing dimensions286 x 316 x 126.5
Weight kg (net)3.2
IP protectionIP65

1.1 Dimensions

Kern WTB 1K4N - Dimensions - 1

Kern WTB 1K4N - Dimensions - 2

Kern WTB 1K4N - Dimensions - 3

2 Appliance overview

Kern WTB 1K4N - Appliance overview - 1

1 Weighing plate
2 Keyboard
3 Bubble level
4 Display

2.1 Overview of display

Kern WTB 1K4N - Overview of display - 1

Rear view:

Kern WTB 1K4N - Overview of display - 2

DisplayDescriptionDescription
→0←Zeroing displayShould the balance not display exactly zero despite empty scale pan, press the button. The balance will be set to zero after a short standby time.
Stability displayScales are in a steady state
NETNet weight displayNet weight will be displayed
Capacity displayTriangle above the capacity indicator appears when the battery capacity is almost exhausted
+ -Rechargeable battery
Display Weighing with tolerance rangeTriangle above "+" upper limit value Triangle above "-" lower limit value
- +Power supply connectedLights with power supply via power supply unit, then the battery is being charged
kgDisplay Weighing unit kgDisplayed weight in kg

2.2 Keyboard overview

KeyDescriptionFunctionin menu
ON/OFFON/OFF-switchTurn on/off
TARETARE button·Tare balance·Call up menu
·Weighing with tolerance range·Change to the next menu item /parameter
→0←Zero setting keySet balance to zero·Select menu item / parameter

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

  • Our balances are non-automatic balances and not provided for use in dynamic weighing processes. However, the balances can also be used for dynamic weighing processes after verifying their individual operative range, and here especially the accuracy requirements of the application.
  • 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 the 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 beyond the described uses
  • The appliance is modified or opened
  • Mechanical damage or damage by media, liquids, natural wear and tear
  • The appliance is improperly set up or incorrectly electrically connected
  • The measuring system is overloaded

4 Basic Safety Precautions

4.1 Pay attention to the instructions in the Operation Manual

Kern WTB 1K4N - Pay attention to the instructions in the Operation Manual - 1

Carefully read this operation manual before setup and commissioning, even if you are already familiar with KERN balances.

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.

5.2 Packaging / return transport

Kern WTB 1K4N - Packaging / return transport - 1

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.

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.

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 or 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.
  • In the event of the occurrence of electromagnetic fields, static charges (e.g., when weighing / counting plastic parts) and unstable power supply, large display deviations (incorrect weighing results, as well as damage to the scale) are possible. Change location or remove source of interference.

6.2 Unpacking and placing

Carefully remove the balance from the packaging, remove plastic cover and setup balance at the intended workstation.

Kern WTB 1K4N - Unpacking and placing - 1

1 Weighing pan
2 Locking screw
3 Carrier weighing plate
4 Shim
5 Display
6 Bubble level
7 Keyboard
8 Footscrews
9 Rechargeable battery compartment cover
10 Screws of battery compartment cover

Level balance with foot screws until the air bubble of the water balance is in the prescribed circle.

Kern WTB 1K4N - Unpacking and placing - 2

Kern WTB 1K4N - Unpacking and placing - 3

1 Rechargeable battery compartment
2 Mains port
3 Pressure compensation screw

Pressure compensation screw:

Kern WTB 1K4N - Pressure compensation screw: - 1
[1]

Kern WTB 1K4N - Pressure compensation screw: - 2

On the lower side of the balance there is a pressure compensation screw [1] which has to be opened for the weighing process. Fasten the screw before cleaning the balance.

Kern WTB 1K4N - Pressure compensation screw: - 3

6.2.1 Scope of delivery

Serial accessories:

Balance
- Weighing pan
- Carrier weighing plate
Fastening screw of the carrier weighing plate
- Operating instructions
- Hexagonal socket wrench

6.3 Rechargeable battery operation (optional)

The rechargeable battery is charged via the delivered power supply.

The operating time of the rechargeable battery with background illumination is 30h, without that it is 50 hrs. Charging time until complete recharging 12h.

In the menu you can activate the AUTO-OFF function [time off], see chap. 9.2.

According to menu settings, the balance switches automatically off in order to spare the battery.

Insert rechargeable battery:

Kern WTB 1K4N - Insert rechargeable battery: - 1

Remove any adherent moisture from the balance
Rotate both levers (1) 90 degrees to the left

Kern WTB 1K4N - Insert rechargeable battery: - 2

Remove battery compartment cover and the foam pieces

Kern WTB 1K4N - Insert rechargeable battery: - 3

Connecting the rechargeable battery

Kern WTB 1K4N - Insert rechargeable battery: - 4

Watch the colours:

Red on red!

Black on black!

Kern WTB 1K4N - Insert rechargeable battery: - 5

Insert the rechargeable battery in a manner that it cannot slip (fasten with a rubber foam mat)

Kern WTB 1K4N - Insert rechargeable battery: - 6

Ensure that the cables are not squeezed.

Kern WTB 1K4N - Insert rechargeable battery: - 7

Close the rechargeable battery cover
Rotate both levers (1) 90 degrees to the right

If in the display the triangle appears above the capacity display, the rechargeable battery is nearly exhausted. Connect power pack, the rechargeable battery is loaded.

Kern WTB 1K4N - Insert rechargeable battery: - 8

Avoid excess pressure on the balance in order to avoid damaging it, particularly as it is supported by the weighing plate.

6.3.1 Mains connection during rechargeable battery operation

Kern WTB 1K4N - Mains connection during rechargeable battery operation - 1

During the rechargeable battery operation ensure that the mains connection is covered with a rubber cap. Only by this the type of protection IP65 is ensured.

Kern WTB 1K4N - Mains connection during rechargeable battery operation - 2

6.4 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).

For this warm-up period the scale must be connected to the power supply (batteries). The accuracy of the balance depends on the local acceleration of gravity.

Strictly observe hints in chapter Adjustment.

6.5 Type of protection IP65

The KERN WTB meets the requirements for IP65 protection type.

Suitable for a short-time contact with liquids. For cleaning use damp cloth. Dust-tight.

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.

7.1 Adjustment

Carry out adjustment as close as possible to the maximum load of the scales)see chap. 1 „Technical data"). The accuracy of the adjustment weight must correspond approximately to or, if possible, be better than, the readability d of the balance. Information about test weights you will find in the internet under http://www.kernsohn.com

Procedure when adjusting:

Observe stable environmental conditions. A warming up time (see chapter 1) is required for stabilization.

7.1.1 Adjustment non verifiable models

Display

Kern WTB 1K4N - Display - 1

Operation

Start balance by pressing

Kern WTB 1K4N - Operation - 1

While the balance carries out a self test (00...-99...), press TARE and keep pressed until ,F1 CAL" appears on the display.

Kern WTB 1K4N - Operation - 2

Kern WTB 1K4N - Operation - 3

Kern WTB 1K4N - Operation - 4

Press in the display appears "UnLod". Wait for the triangle above the stability symbol, then press 0 the value of the last-used adjustment weight is displayed. Exp: 6kg^* .If necessary, change value by TARE

Kern WTB 1K4N - Operation - 5

Place the adjustment weight Wait for the triangle above the stability symbol

Kern WTB 1K4N - Operation - 6

Kern WTB 1K4N - Operation - 7

Press While the balance carries out a self-test, take away the adjustment weight

The balance changes over to zero display. Now the process of adjustment is completed.

If the display shows an error message or an incorrect value, repeat adjustment process. If the error message remains, please contact your dealer.

7.1.2 Adjustment of verifiable models

Kern WTB 1K4N - Adjustment of verifiable models - 1

In verified balances the menu is locked by the verification switch.

To disable the access lock, destroy the seal and actuate the adjustment switch. Position of the adjustment switch see chapter 7.2.1

Attention:

After destruction of the seal the balance must be re-verified by an authorised agency and a new verification wire/seal mark fitted before it can be reused for applications subject to verification.

Display

Kern WTB 1K4N - Display - 1

Operation

ON ON OFF Start balance by pressing
While the balance carries out a self test (00...- 99...), press TARE and keep pressed until ,F1 CAL" appears on the display.
Actuate the adjustment switch on the lower side of the balance

Kern WTB 1K4N - Operation - 1

Press 0 in the display appears „UnLod".

Kern WTB 1K4N - Operation - 2

→Press The weighing value is displayed.

Kern WTB 1K4N - Operation - 3

TARE Press to enter the value of the adjustment weight (see chapter 1)
Place the adjustment weight
Press 0 While the balance carries out a self-test, take away the adjustment weight

Kern WTB 1K4N - Operation - 4

The balance changes over to zero display. Now the process of adjustment is completed.

Kern WTB 1K4N - Operation - 5

7.2 Verification

General introduction:

According to EU directive 2014/31EU 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.

Verification notes:

An EU type approval exists for balances described in their technical data as verifiable. If a balance is used where obligation to verify exists as described above, it must be verified and re-verified at 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!

Verification of the balance is invalid without the seal.

The seal marks attached on verified balances point out that the balance may only be opened and serviced by trained and authorised specialist staff. If the seal mark is destroyed, verification looses its validity. Please observe all national laws and legal regulations. In Germany a re-verification will be necessary.

7.2.1 Adjustment switch and seals

After a verification the balance is sealed at the indicated positions.

Position of the official seals:

Kern WTB 1K4N - Position of the official seals: - 1

  1. Fastening calibration wire
  2. Fixing calibration wire
  3. Pin insert
  4. Self-destructing sealing mark
  5. Adjustment switch
  6. ABS disc
  7. Self-destructing sealing mark

8 Operation

8.1 Weighing

Kern WTB 1K4N - Weighing - 1

Start balance by pressing

Kern WTB 1K4N - Weighing - 2

The balance will carry out a self-test

When the weight display shows "0.0" and the triangle symbol

above the stability display appears, the scale is ready for weighing.

Kern WTB 1K4N - Weighing - 3

However, you can reset the weighing scale to zero by pressing

the

Kern WTB 1K4N - Weighing - 4

Switch off balance using

The "0.0" display disappears and the scales are switched off.

8.2 Taring

The bare weight of any preloads can be deducted by pressing a button so that the actual weight of the weighed material is displayed in subsequent weighings.

Kern WTB 1K4N - Taring - 1

Put on weighing receptacles and press

Kern WTB 1K4N - Taring - 2

The zero display appears, and above the reset symbol 0 the stability symbol and the net weight symbol MET triangle appears.

Kern WTB 1K4N - Taring - 3

The weight of the container is now internally saved.

Kern WTB 1K4N - Taring - 4

Place goods to be weighed in the weighing container.

The net weight of the goods to be weighed is displayed.

Kern WTB 1K4N - Taring - 5

The weight of the weighing container will be displayed as a minus number (= gross weight) after removing the weighing container.

Kern WTB 1K4N - Taring - 6

The tare weight is saved until it is deleted. Remove the load

from the balance and press The zero display appears and the triangle above the net weight symbol NET vanishes.

Gross weight:

Kern WTB 1K4N - Gross weight: - 1

TARE Press as ng as the weighing container and the object to be weighed are on the weighing plate.
Remove the object to be weighed as well as the weighing container. The gross weight is displayed as a negative value.

8.3 Background illumination

Kern WTB 1K4N - Background illumination - 1

In weighing mode pre for about 3 seconds, "bK-AU" appears.

Kern WTB 1K4N - Background illumination - 2

TARE Press to 3ect background illumination automatically off (^,bK - AU^) and background illumination off (^,bK - oF^)

Kern WTB 1K4N - Background illumination - 3

Press 0 to firm selected setting.

Kern WTB 1K4N - Background illumination - 4

The balance changes into weighing mode

8.4 Weighing with tolerance range

You can set an upper or lower limit when weighing with tolerance range and thus ensure that the weighed load remains exactly within the set tolerance limits.

Settings:

Kern WTB 1K4N - Settings: - 1

Kern WTB 1K4N - Settings: - 2

Kern WTB 1K4N - Settings: - 3
example)

TARE In weighing mode press for out 3 seconds, the display for entering the upper limit appears. The left digit blinks. A triangle appears above the "+" symbol. Moreover, the background of the screen turns red.
Enter upper limit value, the active position blinks.
Mit Correct the numerical value by changing the decimal using If the last digit is entered, confirm input by the upper limit value is hereby saved. The display changes to the prompt for entering the lower limit value. The colour of the display then changes to orange.
Now enter the lower limit value as described above and confirm input using The lower limit value is thus entered. The balance changes into weighing mode.

Kern WTB 1K4N - Settings: - 4
example)

Kern WTB 1K4N - Settings: - 5

Audio signal:

The acoustic signal depends on the settings in menu block „F9 BEP". Options:

BEP 0 Acoustic signal turned off
BEP 1 An acoustic signal sounds when load is within tolerance limits
BEP 2 An acoustic signal sounds when load is beyond tolerance limits

Optical signals:

The triangle above the "+" - or the "-" symbol indicates whether the sample weighed is within the tolerance range:

+ -Goods to be weighed above tolerance limit
+ -Goods to be weighed within tolerance range
+ -Goods to be weighed below tolerance limit

Traffic light function:

The indicator lights up in red, green and orange, depending on the area in which your sample is:

redGoods to be weighed above tolerance limit
greenGoods to be weighed within tolerance range
orangeGoods to be weighed below tolerance limit

Weighing with tolerance range

Tare when using a weighing container
Put on goods to be weighed, tolerance control is started

Load below specified toleranceLoad within specified toleranceLoad exceeds specified tolerance
00.500 →0←NET+→01.500 →0←NET+→02.500 →0←NET+→
orange backgroundgreen backgroundred background

9 The menu

9.1 Navigation in the menu

In verified balances the menu is locked by the verification switch.

Kern WTB 1K4N - Navigation in the menu - 1

ON OFF ON Switch on the scales by and during the balance's self test, press TARE unF1 CAL" is displayed.
TARE Use to range to the next menu item
Select menu item using
TARE Use to change between the individual parameters
Select the desired parameter using

9.2 Menu overview (locked in verifiable models)

Menu itemFunction
F1CALAdjustment process.
F2-R530006000dualResolutionPlease do not change default setting
F3CAP1.5 kg3 kg6 kg15 kg25 kg30 kgMax loadDo not change the default setting
F4,inPnot documented
F5oFF3 min5 min15 minoffAuto-OFF function,adjustable between off, 3, 5 and 15 minutes
F6G-Rnot documented
F7SPdSP 7.5SP 15SP 30SP 60Display speedDo not change the default setting
F8t nMulti-Tare function: 0 tare Multi-Tare function disabled P tare Multi-Tare function enabled
F9bEPAcoustic signal in tolerance weighing mode
bEP 0Acoustic signal turned off
bEP 1Acoustic signal when weighed material is within the tolerance range
bEP 2Acoustic signal when weighed material is outside the tolerance range
bACHReturn to weighing mode

9.3 Set auto-OFF function

Kern WTB 1K4N - Set auto-OFF function - 1

9.4 Multi-Tare function

The scale has the ability to tare several times in a row. For this purpose, select the menu item "F8 tm" and set the parameter "P tare".

10 Error messages

Display

Kern WTB 1K4N - Error messages - 1

Kern WTB 1K4N - Error messages - 2

Description

Zero range exceeded

A/D converter outside range

Remedy

Unload the balance

Unload the balance; check if the weighing is correctly placed and screwed on

11 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

The displayed weight does not glow.

Possible cause

  • The balance is not switched on.
  • Batteries are inserted incorrectly or empty
  • No batteries inserted.
  • Draught/air movement
    Table/floor vibrations
  • Weighing pan has contact with other objects.
  • Electromagnetic fields / static charging (choose different location/switch off interfering device if possible)
    The display of the balance is not at zero
  • Adjustment is no longer correct.
  • Great fluctuations in temperature.
  • The balance is on an uneven surface.
  • Electromagnetic fields / static charging (choose different location/switch off interfering device if possible)

The weighing value is obviously wrong

Should other error messages occur, switch balance off and then on again. If the error message remains inform manufacturer.

12 Service, maintenance, disposal

12.1 Cleaning

Before cleaning, please remove batteries from the appliance

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.

13 Declaration of Conformity

To view the current EC/EU Declaration of Conformity go to:

www.kern-sohn.com/ce

The scope of delivery for verified weighing balances (= conformity-rated weighing balances) includes a Declaration of Conformity.

Kern WTB 1K4N - Declaration of Conformity - 1

KERN WTB-N, WTB-NM

Version 2.4 2023-03

Table of contents Click a title to access it
Manual assistant
Powered by Anthropic
Waiting for your message
Product information

Brand : Kern

Model : WTB 1K4N

Category : Letter scale