DE 150K20DL - Letter scale Kern - Free user manual and instructions

Technical Features	Kern DE 150K20DL letter scale, weighing capacity up to 150 kg, accuracy of 20 g.
Platform Dimensions	Weighing platform of 400 x 500 mm.
Display	Backlit LCD screen for better visibility.
Power Supply	Operates on mains power or batteries (extended battery life).
Usage	Ideal for weighing letters and parcels, easy to use with intuitive controls.
Maintenance	Regular cleaning of the platform with a soft cloth, periodic calibration checks.
Safety	Complies with electrical safety standards, use on a flat surface recommended.
General Information	2-year warranty, technical support available for assistance.

Frequently Asked Questions - DE 150K20DL Kern

How do I calibrate the Kern DE 150K20DL letter scale?

To calibrate the letter scale, place it on a flat surface, turn it on, then press the calibration button. Follow the on-screen instructions to use an appropriate reference weight.

What should I do if the letter scale display is blurry?

Check that the screen is clean and free of dust. If the problem persists, try restarting the device. If the display is still blurry, contact customer service.

Why won't the letter scale turn on?

Make sure the batteries are installed correctly and are not depleted. If the device is plugged into a power outlet, check that the outlet is working.

How do I change the batteries in the Kern DE 150K20DL letter scale?

Turn the device over and locate the battery compartment. Open it and replace the old batteries with new ones, respecting the indicated polarity.

The letter scale shows an error message, what should I do?

Refer to the user manual to identify the error code. In most cases, restarting the device can resolve the issue. If the error persists, contact technical support.

How do I change the unit of measurement on the letter scale?

Press the unit selection button (g, kg, lb) until the desired unit appears on the screen.

The letter scale is not weighing correctly, what should I do?

Make sure the device is on a flat and stable surface. Also check that the weight you are measuring is within the device's maximum capacity. If the problem persists, consider recalibrating it.

How do I clean the letter scale?

Use a clean, soft, slightly damp cloth to clean the surface of the device. Avoid using harsh chemical products.

USER MANUAL DE 150K20DL Kern

Français | English | Deutsch

Digital kitchen scale with digital display and control buttons (no visible text or symbols)

Digital scale instrument with a digital display and control panel (no visible text or symbols)

Further language versions you will find online under www.kern-sohn.com/manuals

KERN DE ON OFF MODE CAL SET M PRINT TARE

6.2 Wägen

Einheiten\Modell

DE 6K0.5A

DE 6K1D

DE 12K1A

DE 15K0.2D

DE 15K2D

DE 24K2A

DE 35K0.5D

DE 35K5D

DE 35K5DL

DE 60K1D

DE 60K1DL

DE 60K5A

Gramm

X

X

X

X

X

X

X

X

X

X

X

X

Kilogramm

X

X

X

X

X

X

X

X

X

X

X

X

Pound

X

X

X

X

X

X

X

X

X

X

X

X

Unze

X

X

X

X

X

X

X

X

X

X

X

X

Troy Unze

X

X

X

X

X

X

X

X

X

X

X

X

Tael Hongkong

X

X

X

X

X

X

X

X

X

X

X

X

Tael Taiwan

X

X

X

X

X

X

X

X

X

X

X

X

Pennyweight

X

X

X

X

X

X

X

X

X

X

X

v

Momme

X

X

X

X

X

X

X

X

X

X

X

X

Tola

X

X

X

X

X

X

X

X

X

X

X

X

Frei wählbarer Faktor

X

X

X

X

X

X

X

X

X

X

X

X

Einheiten\Modell	DE 60K10D	DE 60K10DL	DE 120K10A	DE 150K2D	DE 150K2DL	DE 150K20D	DE 150K20DL	DE 150K20DXL	DE 300K5DL	DE 300K50D	DE 300K50DL
Gramm	-	-	-	X	X	-	-	-	-	-	-
Kilogramm	X	X	X	X	X	X	X	X	X	X	X
Pound	X	X	X	X	X	X	X	X	X	X	X
Unze	X	X	X	X	X	X	X	X	X	X	X
Troy Unze	X	X	X	X	X	X	X	X	X	X	X
Tael Hongkong	X	X	X	X	X	X	X	X	X	X	X
Tael Taiwan	X	X	X	X	X	X	X	X	X	X	X
Pennyweight	X	X	X	X	X	X	X	X	X	X	X
Momme	X	X	X	X	X	X	X	X	X	X	X
Tola	X	X	X	X	X	X	X	X	X	X	X
Frei wählbarer Faktor	X	X	X	X	X	X	X	X	X	X	X

0.0g Unit Pr

0.0g Unit bAUD

0.0g Unit LAPr

0.0g Unit -5t

Pin 5: Signal ground

Operating instruction

Platform scale

Table of Contents

1 Technical data 4

2 Basic Information (General) 11

2.1 Proper use.... 11

2.2 Improper Use 11

2.3 Warranty....11

2.4 Monitoring of Test Resources 12

3 Basic Safety Precautions 12

3.1 Pay attention to the instructions in the Operation Manual.... 12

3.2 Personnel training....12

4 Transport and storage 12

4.1 Testing upon acceptance.... 12

4.2 Packaging / return transport.... 12

5 Unpacking, Setup and Commissioning.... 13

5.1 Installation Site, Location of Use 13

5.2 Unpacking 13

5.2.1 Setup....13

5.2.2 Scope of delivery.... 13

5.2.3 Basic structure 14

5.3 Mains connection....14

5.4 Operation using a (rechargeable) battery (optional).... 14

5.5 Connection of peripheral devices 15

5.6 Initial Commissioning....15

5.7 Adjustment.... 15

5.8 Adjustment.... 15

6 Operation 17

6.1 Overview of display 17

6.2 Weighing....17

6.3 Taring 18

6.4 PRE-Tare function.... 18

6.5 Plus/minus weighings 18

6.6 Parts counting 19

6.7 Net-total weighings....19

6.8 Percent weighings 20

6.9 Weighing units (Unit) 21

6.10 Display background illumination 23

6.11 Animal weighing function 24

7 Settings.... 25

7.1 Call-up menu structure....25

7.2 Leave menu structure.... 26

7.3 Dosing and Zero-tracking....26

7.4 Selection of the adjustment weight....27

7.5 Interface RS232C 28

7.5.1 Data transfer mode 28

7.5.2 Baud rate.... 29

7.6 Selection printed edition 30

7.7 Reset to factory setting 31

8 Data output RS 232 C.... 32

8.1 Technical data 32

8.2 Pin allocation of the balance output socket (front view) 32

8.3 Explanation of the data transfer 32

8.3.1 Pr PC 32

8.3.2 AU Pr 33

8.3.3 AU PC 33

8.3.4 rE Cr 34

8.4 Output on bar code printer 35

9 Service, maintenance, disposal 36

9.1 Cleaning 36

9.2 Service, maintenance 36

9.3 Disposal 36

10 Instant help 37

11 Declaration of Conformity 38

1 Technical data

KERN	DE6K0.5A	DE6K1D	DE12K1A
Readability (d) 0.5 g 1 g / 2 g 1 g
Weighing range (max)	6 kg	3 kg / 6 kg	12 kg
Minimum piece weight 1 g	2 g 2 g
Reproducibility	0,5 g	1 g / 2 g	1g
Linearity	± 1.5 g	± 3 g / 6 g	3 g
Warm-up time	30 minutes	10 minutes	30 minutes
Reference unit weights at piece count	5, 10, 20, 25, 50
Weighing Units	Details „Weighing units“ chapter 6.9
Recommended adjustment weight, not added (class)Details for „Selection of the Adjustment weight“ in chapter 7.4	6 kg(M1)	6 kg(M1)	12 kg(M1)
Stabilization time (typical)	2,5 sec.
Electric Supply	DC 15V/600 mA
Operating temperature	+ 5°C .... + 35°C
Humidity of air	max. 80 % (not condensing)
Terminal (B x D x H) mm	226 x 111 x 58
Platform (B x D x H) mm	318 x 308 x 75	318 x 308 x 75	318 x 308 x 75
Weight kg (net)	5	5	5
KERN	DE15K0.2D	DE15K2D	DE24K2A
Readability (d)	0.2 g / 0,5 g	2 g / 5 g	2 g
Weighing range (max)	6 kg / 15 kg	6 kg / 15 kg	24 kg
Minimum piece weight	400 mg	4 g	4 g
Reproducibility	0.2 g / 0,5 g	2 g / 5g	2 g
Linearity	± 0.8 g / 2 g	± 6 g / 15 g	± 6 g
Warm-up time	2 hours	10 minutes	30 minutes
Reference unit weights at piece count	5, 10, 20, 25, 50
Weighing Units	Details „Weighing units“ chapter 6.9
Recommended adjustment weight, not added (class) Details for „Selection of the Adjustment weight“ in chapter 7.4	15 kg (F2)	15 kg (M1)	20 kg (M1)
Stabilization time (typical)	2,5 sec.
Electric Supply	DC 15V/600 mA
Operating temperature	+ 5°C .... + 35°C
Humidity of air	max. 80 % (not condensing)
Terminal (B x D x H) mm	226 x 111 x 58
Platform (B x D x H ) mm	318 x 308 x 85	318 x 308 x 75
Weight kg (net)	7.5	5
KERN	DE35K0.5D	DE35K5D	DE35K5DL
Readability (d)	0.5 g / 1 g	5 g / 10 g
Weighing range (max)	15 kg / 35 kg	15 kg / 35 kg
Minimum piece weight 1 g	10 g
Reproducibility	0,5 g / 1g	5 g / 10 g
Linearity	±2 g / 4 g	±15 g / 30 g
Warm-up time	2 hours	10 minutes
Reference unit weights at piece count	5, 10, 20, 25, 50
Weighing Units	Details „Weighing units“ chapter 6.9
Recommended adjustment weight, not added (class)Details for „Selection of the Adjustment weight“ in chapter 7.4	30 kg(F2)	30 kg(M1)
Stabilization time (typical)	2,5 sec.
Electric Supply	DC 15V/600 mA
Operating temperature	+5°C .... +35°C
Humidity of air	max. 80 % (not condensing)
Terminal (B x D x H) mm	226 x 111 x 58
Platform (B x D x H) mm	318 x 308 x 85	318 x 308 x 75	522 x 403 x 90
Weight kg (net)	7.5	4	16
KERN	DE60K1D	DE60K1DL	DE60K5A
Readability (d) 1 g / 2 g 5 g
Weighing range (max)	30 kg / 60 kg		60 kg
Minimum piece weight	2 g		10 g
Reproducibility 1 g / 2 g 5 g
Linearity	±4 g / 8 g		±15 g
Warm-up time	2 hours		30 minutes
Reference unit weights at piece count	5, 10, 20, 25, 50
Weighing Units	Details „Weighing units“ chapter 6.9
Recommended adjustment weight, not added (class) Details for „Selection of the Adjustment weight“ in chapter 7.4	60 kg(F2)		60 kg(M1)
Stabilization time (typical)	2,5 sec.
Electric Supply	DC 15V/600 mA
Operating temperature	+5°C .... +35°C
Humidity of air	max. 80 % (not condensing)
Terminal (B x D x H) mm	226 x 111 x 58
Platform (B x D x H ) mm	318 x 308 x 85	522 x 406 x 100	318 x 308 x 75
Weight kg (net)	7.5	16	5
KERN	DE60K10D	DE60K10DL	DE120K10A
Readability (d)	10 g / 20g		10 g
Weighing range (max)	30 kg / 60 kg		120 kg
Minimum piece weight 20 g	20 g
Reproducibility	10 g / 20 g		10 g
Linearity	± 30 g / 60 g		± 30 g
Warm-up time	10 minutes		30 minutes
Reference unit weights at piece count	5, 10, 20, 25, 50
Weighing Units	Details „Weighing units“ chapter 6.9
Recommended adjustment weight, not added (class)Details for „Selection of the Adjustment weight“ in chapter 7.4	60 kg(M1)	60 kg(M1)	120 kg(M1)
Stabilization time (typical)	2,5 sec.
Electric Supply	DC 15V/600 mA
Operating temperature	+ 5°C .... + 35°C
Humidity of air	max. 80 % (not condensing)
Terminal (B x D x H) mm	226 x 111 x 58
Platform (B x D x H ) mm	318 x 308 x 75	522 x 403 x 90	318 x 308 x 75
Weight kg (net)	5	16	5

KERN	DE150K2D	DE150K2DL	DE150K20D	DE150K20DL
Readability (d)	2 g / 5g		20 g / 50 g	20 g / 50 g
Weighing range (max)	60 kg / 150 kg
Minimum piece weight	4 g		40 g	40 g
Reproducibility	2 g / 5 g		20 g / 50 g
Linearity	±8 g / 20 g		±60 g / 150 g
Warm-up time	2 hours		10 minutes
Reference unit weights at piece count	5, 10, 20, 25, 50
Weighing Units	Details „Weighing units“ chapter 6.9
Recommended adjustment weight, not added (class)	150 kg(F2)		150 kg(M1)
Details for „Selection of the Adjustment weight“ in chapter 7.4
Stabilization time (typical)	2,5 sec.
Electric Supply	DC 15V/600 mA
Operating temperature	+5°C .... +35°C
Humidity of air	max. 80% (not condensing)
Terminal (B x D x H) mm	226 x 111 x 58
Platform (B x D x H) mm	318 x 308 x 85	522 x 406 x 100	318 x 308 x 75	522 x 403 x 90
Weight kg (net)	7.5	16	5	16
KERN	DE150K20DXL	DE300K5DL	DE300K50D	DE300K50DL
Readability (d)	20 g / 50 g	5 g / 10 g	50 g / 100 g
Weighing range (max)	60 kg / 150 kg	150 kg / 300 kg
Minimum piece weight	40 g	10 g	100 g	200 g
Reproducibility	20 g / 50 g	5 g / 10 g	50 g / 100 g
Linearity	± 60 g / 150 g	± 20 g / 40 g	± 150 g / 300 g
Warm-up time	10 minutes	2 hours	10 minutes
Reference unit weights at piece count	5, 10, 20, 25, 50
Weighing Units	Details „Weighing units“ chapter 6.9
Recommended adjustment weight, not added (class)Details for „Selection of the Adjustment weight“ in chapter 7.4	150 kg(M1)	300 kg(F2)	300 kg(M1)
Stabilization time (typical)	2,5 sec.
Electric Supply	DC 15V/600 mA
Operating temperature	+ 5°C .... + 35°C
Humidity of air	max. 80 % (not condensing)
Terminal (B x D x H) mm	226 x 111 x 58
Platform (B x D x H) mm	650 x 500 x 105	522 x 406 x 100	522 x 403 x 90	650 x 500 x 105
Weight kg (net)	28	16	16	28

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 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.

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.

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.

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.

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.

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.

5.2 Unpacking

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

5.2.1 Setup

The balance must be installed in a way that the weighing plate is exactly in horizontal position.

5.2.2 Scope of delivery

Serial accessories:

• Terminal
• Platform
• Mains power supply
• Protective cover
• Operating Manual

5.2.3 Basic structure

• Place the balance on a horizontal and solid base (refer also to „5.2.1 Installation“)
• Pull off the protection foil from the weighing plate if existing.

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.

Reinsert the battery cover.

For battery operation the balance has an automatic switch-off function which can be activated or deactivated in the menu (chapter 8.1). Proceed as follows:

Switch-on the balance using the ON OFF key and wait for the „0“ display.

Press the PRINT key and keep it pressed until „UNIT“ appears on the display.

Press the MODE key four times, in the display appears „AF“.

Confirm by pressing the SET Key

Use the MODE key to choose between the following settings:

1. „AF on“: To save the battery, the balance switches off automatically 3 minutes after having finished the weighing procedure.

2. „AF off“: Switch-off function deactivated.

Use the key to confirm your selected setting.

If the batteries are exhausted, „LO“ is displayed; press ON OFF and replace the batteries 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, 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.

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 during the initial start-up, after change in location and variation of surrounding temperature. To receive accurate measuring values it is also recommended to adjust the balance periodically in weighing operation.

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.

Switch on the balance using the ON OR key

Press key and keep it pressed, after the acoustic signal appears in the display for short time „CAL“. After that the exact size appears flashing in the display (chapter.7.4) of the adjustment weight.

Now set the adjusting weight in the centre of the weighing plate.

Now press the SET M key. Short time later appears „CAL F“, then return automatically to the normal 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.

6 Operation

6.1 Overview of display

KERN DE ON OFF MODE CAL SET M PRINT TARE

6.2 Weighing

Switch on the balance using the ON Key

The balance shows for approx. 3 seconds „88888“ in the display and then goes to „0“. Now it is ready for operation.

Important: Should the display flash or not be on „0“, press the TARE key.

Only now (!) place goods onto weighing plate. Take care that the weighed material does not touch the balance housing or the base mat.

Now the weight is displayed, after the standstill control appears the weighing unit (e.g. g or kg) right-hand in the display.

If the goods are heavier than the weighing range, the display will show "Error" (=Overload), and a whistle is sounded.

6.3 Taring

Switch-on the balance using the ON OFF key and wait for the „0“ display.

Put the tare vessel on the weighing plate and press the key. The balance display goes to „0“. The weight of the container is now internally saved.

If after finishing the weighing process the TARE key, is pressed again, „0“ appears anew in the display.

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 taring container the total weight is displayed as negative display.

6.4 PRE-Tare function

Using this function the weight of a tare vessel can be stored.

This value also remains saved if the balance meanwhile has been switched off and switched on again.

Switch-on balance using the ON OFF key and wait for the „0“ display.

Put tare vessel on the weighing plate and press the MODE key 6 times until „PtArE“ flashes on the display. By actuating the SET M key, the current weight on the weighing plate is saved as PRE-Tare weight.

To switch off this function, unload the weighing plate and press the MODE key 6 times, until „PtArE“ flashes on the display. Then press the SET M key. The stored PRE-Tare weight is deleted.

6.5 Plus/minus weighings

For example unit weight control, fabrication control etc.

Switch-on the balance using the ON OFF key and wait for the „0“ display.

Put the nominal weight on the weighing plate and tare to „0“ using the TARE key.

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 key.

6.6 Parts counting

Switch-on the balance using the ON OFF key and wait for the „0“ display.

Press MODE key shortly.

Appears the reference unit number 5.

By pressing the MODE key several times, more reference quantities 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.

Confirm with SET Key.

The balance is now in parts counting mode counting all units on the weighing plate

By pressing the ☐ key the balance returns to the weighing mode and displays the weight of the counted units.

Important: The larger the reference quantity, the more accurate the parts counting.

Smallest counted weight see table „Technical data“, if this weight is less, in the display appears „Er 1“. Use MODE key to return to weighing mode.

The tare vessels can also be used for piece counting. Prior to the piece count tare the tare vessel with key.

6.7 Net-total weighings

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:

Switch-on the balance using the ON OFF key and wait for the „0“ display.

Put tare vessel onto weighing plate, tare with TARE key to „0“.

Weigh component ① and tare with SET M key (Memory) to „0“. The memory activation is indicated by a triangle on the left border of the display.

Weigh component ②, when pressing the SET/M key appears the net-total, that means,

the sum weight of the components ① and ②. Tare to „0“ using the SET M key.

Weigh component ③, when pressing the SET M key, appears the net-total, i.e. the sum weight of components ① and ② and ③.

If necessary, also fill the formula up to the desired final value.

Back to weighing mode by pressing the TARE key.

6.8 Percent weighings

Display symbol: %

Percent weighing allows to display weight in percent, in relation to a reference weight.

Switch-on the balance using the ON OFF key and wait for the „0“ display.

Press the MODE key several times shortly. The reference quantities of the counting function are passed through, after that „100%“ is displayed.

Place the reference item on the weighing pan.

Press SET M key, the weight of the item is taken over as reference (100%).

Now you can place the test objects onto the weighing plate; the percentage is displayed

Back to weighing mode by pressing the MODE key.

6.9 Weighing units (Unit)

Switch-on the balance using the ON OFF key and wait for the „0“ display.

Press the PRINT key and keep it pressed until „UNIT“ appears on the display.

Press SET M shortly, the selected unit appears in the display.

Use the MODE key to select between the different units (see table).

By pressing the SET M key the selected weighing unit is taken over.

	Display	Conversion factor1 g =
Gram	g	1.
Kilogramm	kg	0.001
Pound	lb	0.0022046226
Unze	oz	0.035273962
Troy Unze	ozt	0.032150747
Tael Hongkong	tlh	0.02671725
Tael Taiwan	ltt	0.0266666
Grain	gn	15.43235835
Pennyweight	dwt	0.643014931
Momme	(mom)	0.2667
Tola	tol	0.0857333381
Carat	ct	5
Freely selectable factor *)	FFA	xx.xx

*)

In order to enter an own conversion factor, press the MODE key as explained above until "FFA" is displayed. Press the SET M key to reach to the selection. The last digit begins to flash. Using the MODE key, the displayed value is increased by 1, with the TARE key it is reduced by 1. Use the TARE key to jump one digit to the left. When all the changes are ready, use the SET M key to save this value and by pressing the SET M key the "Freely selectable factor" is taken over as current weighing unit.

The different weighing models have integrated different foreign weighing units. Details can be seen in this table:

Units\Model

DE 6K0.5A

DE 6K1D

DE 12K1A

DE 15K0.2D

DE 15K2D

DE 24K2A

DE 35K0.5D

DE 35K5D

DE 35K5DL

DE 60K1D

DE 60K1DL

DE 60K5A

Gram

X

X

X

X

X

X

X

X

X

X

X

X

Kilogram

X

X

X

X

X

X

X

X

X

X

X

X

Pound

X

X

X

X

X

X

X

X

X

X

X

X

Ounce

X

X

X

X

X

X

X

X

X

X

X

X

Troy ounce

X

X

X

X

X

X

X

X

X

X

X

X

Tael Hongkong

X

X

X

X

X

X

X

X

X

X

X

X

Tael Taiwan

X

X

X

X

X

X

X

X

X

X

X

X

Pennyweight

X

X

X

X

X

X

X

X

X

X

X

v

Momme

X

X

X

X

X

X

X

X

X

X

X

X

Tola

X

X

X

X

X

X

X

X

X

X

X

X

Freely selectable Factor

X

X

X

X

X

X

X

X

X

X

X

X

Units\Model	DE 60K10D	DE 60K10DL	DE 120K10A	DE 150K2D	DE 150K2DL	DE 150K20D	DE 150K20DL	DE 150K20DXL	DE 300K5DL	DE 300K50D	DE 300K50DL
Gram	-	-	-	X	X	-	-	-	-	-	-
Kilogram	X	X	X	X	X	X	X	X	X	X	X
Pound	X	X	X	X	X	X	X	X	X	X	X
Ounce	X	X	X	X	X	X	X	X	X	X	X
Troy ounce	X	X	X	X	X	X	X	X	X	X	X
Tael Hongkong	X	X	X	X	X	X	X	X	X	X	X
Tael Taiwan	X	X	X	X	X	X	X	X	X	X	X
Pennyweight	X	X	X	X	X	X	X	X	X	X	X
Momme	X	X	X	X	X	X	X	X	X	X	X
Tola	X	X	X	X	X	X	X	X	X	X	X
Freely selectable Factor	X	X	X	X	X	X	X	X	X	X	X

6.10 Display background illumination

In the menu the functions of the background illumination can be switched on or off. Proceed as follows:

Switch-on the balance using the ON OFF key and wait for the „0“ display.

Press the PRINT key and keep it pressed until „UNIT“ appears on the display.

Press the MODE key seven times, in the display appears „bl“.

Confirm by pressing the SET Key

Use the MQDE key to choose between the following settings:

Display	Adjustment	Function
„bl“ on	Background illumination on	Contrast-full display which can also be red in the darkness.
„bl“ off	Background illumination off	Battery saving
„bl“ Ch	The background illumination will be switched off automatically 10 sec after having reached a stable weighing value.	Battery saving

Use the SET key to confirm your selected setting.

6.11 Animal weighing function

The balance has an integrated animal weighing function (mean value calculation). With this function it is possible to weigh domestic or small animals exactly, although they do not stand quiet on the weighing plate.

Note: If they move too much, an exact weighing will not be possible.

In the menu the animal weighing function can be switched on or off. To achieve this, follow the sequence of operations below:

Switch-on the balance using the ON OFF key and wait for the „0“ display.

Press the PRINT key and keep it pressed until „UNIT“ appears on the display.

Press the MODE key eight times, in the display appears „ANL“.

Confirm by pressing the SET Key

Using the key select one of the following settings:

Display	Function
„ANL“ Off	Animal weighing function is switched off
„ANL“ 3	Weighing value calculation above 3 sec. till to the value display
„ANL“ 5	Weighing value calculation above 5 sec. till to the value display
„ANL“ 10	Weighing value calculation above 10 sec. till to the value display
„ANL“ 15	Weighing value calculation above 15 sec. till to the value display

Confirm the selected setting using the SET key.

Operation:

Switch-on the balance using the ON key and wait for the „0“ display.

Put the weighing good (animal) on the weighing plate and press the SET M key. In the display the preselected time is displayed in seconds and then is counted towards zero. During this time the balance takes up several measuring values. When reaching „0“ sounds an acoustic signal and the calculated weighing value is displayed.

By pressing the key several times, the balance returns to the normal weighing mode.

Repeated pressing of the Key activates this function anew.

7 Settings

7.1 Call-up menu structure

Switch-on the balance using the ON OFF key and wait for the „0“ display.

To enter into the menu structure keep the PRINT key pressed approx. 3 sec. until „UNIT“ appears.

By pressing the MODE key the different menu items are called up. Use the SET M key to select a menu item. Within this menu item use the MODE key to make your choice. If the SET M key is repeatedly actuated, the setting will be saved.

Press the PRINT key 3 seconds ->

Chapter 7.5.1 Data transfer mode

Chapter 7.6 Selection printed edition

Chapter 7.5.2 Baud rate

Chapter 5.4 Battery operation

Chapter 7.3 Zero-Tracking

Chapter 7.4 Selection of adjustment weight

Chapter 6.10 Background illumination

Chapter 6.11 Animal weighing function

Chapter 7.7 Reset to Default setting

graph TD
    A["Unit"] --> B["Pr"]
    B --> C{rE CR PrPC AU PC AU Fr BA Pr}
    C --> D{ }
    D --> E["LP r"]
    E --> F{Hdr GrS Net Ur N7E PCS}
    F --> G{ }
    G --> H{ }
    H --> I{AUJ rqt}
    I --> J{ } FFD
    K["baud"] --> L{19200 9600 4800 2400 1200}
    L --> M{ }
    M --> N["AF"]
    N --> O{on off}
    O --> P{ }
    P --> Q["tr"]
    Q --> R{on off}
    R --> S{ }
    S --> T["CAL"]
    T --> U{100 200 300}
    U --> V{ }
    V --> W["bl"]
    W --> X{on off CH}
    X --> Y{ }
    Y --> Z["ANL"]
    Z --> AA{off 3 5 10}
    AA --> AB{15}
    AB --> AC{ }
    AC --> AD{ }
    AD --> AE["rst"]
    AE --> AF{no}
    AF --> AG{yes}

7.2 Leave menu structure

Everywhere in the menu it is possible to leave the menu structure and thereby save or reject the changes made.

After pressing the TARE key „Exit“ is displayed.

A: Use the SET M (YES) key, to confirm. After that „store“ is displayed. If it shall be saved, press the SET Key repeatedly.

If the menu shall be left without saving,

press the (NO) key.

B: The PRINT (NOT EXIT) key must be pressed, if the next menu item shall be reached. After having set all the individual adjustments, it can be saved.

7.3 Dosing and Zero-tracking

The Auto-Zero function is used to tare small variations in weight automatically. 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). When apportioning involves small variations of weight, it is advisable to switch off this function.

If Zero-Tracking however is switched off, the weighing display becomes more busy.

Activate/deactivate Zero-Tracking	Balance display
1. Keep thePRINTkey pressed until „Unit" is displayed.	Unit
2. Press theMODEkey several times until „tr“ is displayed.	tr
3. Press theSETMkey to activate the function.	tr on
4. By pressing once more theMODEkey, the function is deactivated.	tr off
5. The changed setting is taken over by pressing the SETkey.
6. The balance returns to weighing mode.	0.0 g

7.4 Selection of the adjustment weight

In the model series KERN DE, the adjustment weight can be selected from three pre-set nominal values (approx.1/3; 2/3; max) (refer also to table 1 below, factory setting with grey background). In order to achieve high-quality weighing results in the sense of the measuring technology, it is recommended to select the nominal value as high as possible.

DE6K0.5A	DE6K1D	DE12K1A	DE15K0.2D
2000	2000	4000	5000
4000	4000	8000	10000
6000	6000	12000	15000

DE15K2D	DE24K2A	DE35K0.5D	DE35K5D
50000	10000	10000	10000
100000	15000	20000	20000
15000	20000	30000	30000

DE35K5DL	DE60K1D	DE60K1DL	DE60K5A
10000	20000	20000	20000
20000	40000	40000	40000
30000	60000	60000	60000

DE60K10D	DE60K10DL	DE120K10A	DE150K2D
20000	20000	40000	50000
40000	40000	80000	100000
60000	60000	120000	150000

DE150K2DL	DE150K20D	DE150K20DL	DE150K20DXL
50000	50000	50000	50000
100000	100000	100000	100000
150000	150000	150000	150000

DE300K5DL	DE300K50D	DE300K50DL
100000	100000	100000
200000	200000	200000
300000	300000	300000

7.5 Interface RS232C

Data output via interface RS 232 C

General Information

The previous condition for the data transfer between balance and a peripheral device (e.g. printer, PC ...) is that the appliances are set to the same interface parameters (e.g. baud rate, transfer mode ...).

7.5.1 Data transfer mode

⇒ In weighing mode keep the PRINT key pressed until [Unit] appears.
⇒ Press the MODE button several times until „Pr“ is displayed.
Acknowledge using SET key, the current setting is displayed.
→ Select the desired settings by pressing the MODE key

rE CR	Data output via remote control commands
Pr PC	Data output using the PRINT key
AU PC	Continuous data output
bA Pr	Output on bar code printer
AU Pr	Autom. data output of stable weighing values

⇒ Use the SET key to confirm selection. The balance returns to weighing mode.

7.5.2 Baud rate

The baud rate defines the transfer speed via the interface, 1 Baud = 1 Bit/second.

0.0g Unit bAUD

In weighing mode keep the PRINT key pressed until [Unit] appears.
⇒ Press the MODE key several times until „bAUd“ is displayed.
Acknowledge using SET key, the current setting is displayed.
→ Use MODE key select the desired settings
Use the SET key to confirm selection. The balance returns to weighing mode.

$$ 9 6 0 0 \Rightarrow 4 8 0 0 \Rightarrow 2 4 0 0 \Rightarrow 1 2 0 0 \Rightarrow 1 9 2 0 0 $$

7.6 Selection printed edition

printout

Using this function data are selected which are to be sent via the RS232C (not valid for data transfer mode BAPr).

0.0g Unit LAPr

⇒ In weighing mode keep the PRINT key pressed until [Unit] appears.
⇒ Press the MODE key several times until „LAPr“ is displayed.
⇒ Acknowledge using SET key, the current setting is displayed.
⇒ Select the desired output parameter by pressing the MODE key

Hdr	Edition of the headlines
GrS	Edition of the total weight
Net	Edition of the net weight
tAr	Edition of the tare weight
N7E	Edition of the stored weight
PCS	Edition of quantity
AUJ	Edition of the unit weight
Rqt	Edition of the reference quantity
FFd	Edition of a page feeding at start printer output
FFE	Edition of a page feeding at end printer output

⇒ After actuating the SET button, the current state is displayed (on / off).
⇒ Use MODE and PRINT key to change the status „on ⇔ off“.
Use the SET key to confirm selection. The balance returns to weighing mode.

i

By that way the user can configure his own data block, which then is sent to a printer or to a PC.

7.7 Reset to factory setting

0.0g Unit -5t

This function resets all balance settings to factory setting.

⇒ In weighing mode keep the PRINT key pressed until [Unit] appears.
⇒ Press the MODE button several times until „rSt“ is displayed.
⇒ Acknowledge using SET key, the current setting is displayed.
→ Select the desired settings by pressing the MODE key

rSt	yes	Balance will be reset to factory setting.
rSt	no	The balance keeps its individual setting

⇒ Use the SET key to confirm selection. The balance returns to weighing mode.

8 Data output RS 232 C

8.1 Technical data

■ 8-bit ASCII Code
■ 1 start bit, 8 data bits, 1 stop bit, no parity bit
■ Baud rate selectable at 1200, 2400, 4800, 9600 and 19200 Baud
■ Miniature plug-in necessary (9 pole D-Sub)
- For operation with interface faultless operation is only ensured with the correct KERN – interface cable (max. 2m)

8.2 Pin allocation of the balance output socket (front view)

5 1 9 6

Pin 2: Transmit data

Pin 3: Receive data

Pin 5: Signal ground

8.3 Explanation of the data transfer

8.3.1 Pr PC

Press the PRINT key, at stable weight the format is transferred from LAPR.

a. Format for stable values for weight/quantity/percentage

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
M	S	N_1	N_2	N_3	N_4	N_5	N_6	N_7	N_8	N_9	N_10	B	U_1	U_2	U_3	CR	LF

b. Format in case of fault

As soon as the weighing value is stable, the format is automatically transferred from LAPR.

c. Format for stable values for weight/quantity/percentage

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
M	S	N_1	N_2	N_3	N_4	N_5	N_6	N_7	N_8	N_9	N_10	B	U_1	U_2	U_3	CR	LF

d. Format in case of fault

The weighing values are sent automatically and continuously, no matter if the value is stable or unstable.

e. Format for stable values for weight/quantity/percentage

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
M	S	N_1	N_2	N_3	N_4	N_5	N_6	N_7	N_8	N_9	N_10	B	U_1	U_2	U_3	CR	LF

f. Format in case of fault

The remote control commands s/w/t are sent from the remote control unit to the balance as ASCII code. After the balance having received the s/w/t commands, it will send the following data.

Take into account that the following remote control commands must be sent without a subsequent CR LF.

s Function: Stable weighing value for the weight is sent via the RS232 interface

w Function: Weighing value for the weight (stable or unstable) is sent via the RS232 interface

t Function: No data are sent, the balance carries out the tare function.

h. Format for stable values for weight/quantity/percentage

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
M	S	N_1	N_2	N_3	N_4	N_5	N_6	N_7	N_8	N_9	N_10	B	U_1	U_2	U_3	CR	LF

i. Format in case of fault

8.4 Output on bar code printer

The data transfer mode has to be set on „BA Pr“ (chapter 8.5.1).

As bar code printer a Zebra printer model LP2824 is provided.

Take into account that the output format of the balance is fixedly defined and cannot be changed.

The printer format is stored in the printer, i.e. in case of a failure the printer cannot be changed with a new one from factory, previously it is necessary that KERN installs the respective software.

The Zebra printer and the balance must be connected to the delivered interface cable when they are switched off.

After switching-on both appliances, and after reaching the status ready-for-operation, a label will be printed out when pressing the key.

9 Service, maintenance, disposal

9.1 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.

9.2 Service, maintenance

The appliance may only be opened by trained service technicians who are authorized by KERN. Before opening, disconnect from power supply.

9.3 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.

10 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.

Help:

Fault Possible cause

The displayed weight does not glow.

• The balance is not switched on.
• The mains supply connection has been interrupted (mains cable not plugged in/faulty).
  • Power supply interrupted.

The displayed weight is permanently changing

• Draught/air movement
• Table/floor vibrations
• The weighing plate is in contact with foreign matter.
• Electromagnetic fields / static charging (choose different location/switch off interfering device if possible)

The weighing value is obviously wrong

• The display of the balance is not at zero
- Adjustment is no longer correct.
• 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 your specialist dealer.

11 Declaration of Conformity

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

www.kern-sohn.com/ce

KERN DE

Version 5.8 2017-11

Mode d'emploi

Balance plate-forme

Sommaire

KERN DE ON OFF MODE CAL SET M PRINT TARE

6.2 Pesage

Unités\Modèle

DE 6K0.5A

DE 6K1D

DE 12K1A

DE 15K0.2D

DE 15K2D

DE 24K2A

DE 35K0.5D

DE 35K5D

DE 35K5DL

DE 60K1D

DE 60K1DL

DE 60K5A

Gramme

X

X

X

X

X

X

X

X

X

X

X

X

Kilogramme

X

X

X

X

X

X

X

X

X

X

X

X

Pound

X

X

X

X

X

X

X

X

X

X

X

X

Once

X

X

X

X

X

X

X

X

X

X

X

X

Troy once

X

X

X

X

X

X

X

X

X

X

X

X

Tael Hongkong

X

X

X

X

X

X

X

X

X

X

X

X

Tael Taiwan

X

X

X

X

X

X

X

X

X

X

X

X

Pennyweight

X

X

X

X

X

X

X

X

X

X

X

v

Momme

X

X

X

X

X

X

X

X

X

X

X

X

Tola

X

X

X

X

X

X

X

X

X

X

X

X

Facteur librementsélectionnable

X

X

X

X

X

X

X

X

X

X

X

X

Unités\Modèle	DE 60K10D	DE 60K10DL	DE 120K10A	DE 150K2D	DE 150K2DL	DE 150K20D	DE 150K20DL	DE 150K20DXL	DE 300K5DL	DE 300K50D	DE 300K50DL
Gramme	-	-	-	X	X	-	-	-	-	-	-
Kilogramme	X	X	X	X	X	X	X	X	X	X	X
Pound	X	X	X	X	X	X	X	X	X	X	X
Once	X	X	X	X	X	X	X	X	X	X	X
Troy once	X	X	X	X	X	X	X	X	X	X	X
Tael Hongkong	X	X	X	X	X	X	X	X	X	X	X
Tael Taiwan	X	X	X	X	X	X	X	X	X	X	X
Pennyweight	X	X	X	X	X	X	X	X	X	X	X
Momme	X	X	X	X	X	X	X	X	X	X	X
Tola	X	X	X	X	X	X	X	X	X	X	X
Facteur librementsélectionnable	X	X	X	X	X	X	X	X	X	X	X

0.0g Unit Pr

0.0g Unit LAPr

0.0g Unit -5t

Pin 5: Signal ground