KERN & SOHN CFS 50K-3 User Manual

KERN & Sohn GmbH

Ziegelei 1

E-Mail: [e-mail]

Phone: +49-[0]7433- 9933-0

Internet: www.kern-sohn.com

Operating manual
Counting balance/counting s ystem

KERN CFS/CCS

Version 2.2

03/2014

GB

D-72336 Balingen

Fax: +49-[0]7433-9933-149

CFS/CCS-BA-e-1421

KERN CFS/CCS

balance/counting system

GB

Version 2.2 11/2014

Operating instructions Counting

Contents

1 Technical data .......................................................................................... 4

1.1 KERN CFS .......................................................................................................................... 4

1.2 Counting systems KER N CCS .......................................................................................... 7

2 Appliance overview .................................................................................. 9

2.1 Counting scales KERN CFS.............................................................................................. 9

2.2 Counting systems KER N CCS ........................................................................................ 11

2.3 Counting systems with your selected bulk scales ....................................................... 11

2.4 Overview of display ......................................................................................................... 13

2.4.1 Display weight .................................................................................................................... 14

2.4.2 Display average piece weight ............................................................................................ 14

2.4.3 Display quantity .................................................................................................................. 14

2.5 Keyboard overview .......................................................................................................... 15

3 Basic instructions .................................................................................. 18

3.1 Proper use ........................................................................................................................ 18

3.2 Improper Use .................................................................................................................... 18

3.3 Warranty ........................................................................................................................... 18

3.4 Monitoring of Test Resources ........................................................................................ 19

4 Basic Safety Precautions ...................................................................... 19

4.1 Pay attention to the instructions in the Operation Manual ......................................... 19

4.2 Personnel training ........................................................................................................... 19

5 Transport and storage ........................................................................... 19

5.1 Testing upon acceptance ............................................................................................... 19

5.2 Packaging / return transport........................................................................................... 19

6 Unpacking, Setup and Commissioning ................................................ 20

6.1 Installation Site, Location of Use ................................................................................... 20

6.2 Unpacking, Scope of delivery......................................................................................... 20

6.2.1 Scope of delivery / serial accessories ................................................................................ 20

6.3 Installing / removing transport fittings .......................................................................... 21

6.4 Mains connection ............................................................................................................ 22

6.5 Rechargeable battery operation (optional) ................................................................... 22

6.6 Connection of peripheral devices .................................................................................. 23

6.7 Initial Commissioning ..................................................................................................... 23

6.8 Adjustment ....................................................................................................................... 23

7 Basic Operation ...................................................................................... 24

7.1 Switching on/off ............................................................................................................... 24

7.2 Zeroing .............................................................................................................................. 24

7.3 Switching over reference scale  bulk scales if used as counting system .............. 24

7.4 Weighing with tare ........................................................................................................... 26

7.4.1 Taring ................................................................................................................................. 26

7.4.2 Numeric entering of tare weight ......................................................................................... 26

7.4.3 Switch-over weighing unit .................................................................................................. 26

8 Parts counting ........................................................................................ 27

2 CFS/CCS-BA-e-1422

8.1 Determination of the average piece weight by weighing ............................................. 28

8.2 Numeric input of the average piece weight ................................................................... 31

8.3 Automatic reference optimization .................................................................................. 33

8.4 Counting with counting system...................................................................................... 34

9 Fill-to-target function ............................................................................. 36

9.1 Tolerance check for target weight .................................................................................. 37

9.2 Tolerance check for target quantity ............................................................................... 39

10 Totalization ............................................................................................. 41

10.1 Manual totalizing .............................................................................................................. 41

10.2 Automatic adding-up ....................................................................................................... 43

11 Store article information ........................................................................ 44

11.1 Store article ....................................................................................................................... 44

11.2 Call article ......................................................................................................................... 47

11.3 Article direct keys ~ (only model CFS 50K-3) .............................................. 48

12 Menu ........................................................................................................ 50

12.1 Navigation in the menu .................................................................................................... 50

12.2 Menu overview ................................................................................................................. 51

12.2.1 Models 6K0.1, 15K0.2, 30K0.5, 50K-3 ............................................................................... 51

12.2.2 Models CFS 3K-5, CFS 300-3 ............................................................................................ 53

13 Configuration of bulk scale ................................................................... 55

14 Adjustment .............................................................................................. 61

14.1 Models CFS 300-3, CFS 3K-5 .......................................................................................... 61

14.2 Models CFS 6K0.1, CFS 15K0.2, CFS 30K0.5 ................................................................ 62

14.3 Model KERN CFS 50K-3 ................................................................................................... 64

15 Linearization ........................................................................................... 65

15.1 Models CFS 300-3, CFS 3K-5 .......................................................................................... 67

15.2 Model KERN CFS 50K-3 ................................................................................................... 68

16 Second balance interface ...................................................................... 70

17 RS 232C interface ................................................................................... 71

17.1 Technical data .................................................................................................................. 71

17.2 Printer operation .............................................................................................................. 72

17.2.1 Printout example KERN YKB-01N / model CFS 300-3 ...................................................... 72

17.2.2 Printout examples KERN YKB-01N / model CFS 3K-5 ...................................................... 72

17.2.3 Printout examples KERN YKB-01N / CFS 6K0.1, CFS 15K0.2, CFS 30K0.5 ................... 74

17.2.4 Printout examples KERN YKB-01N / model CFS 50K-3 .................................................... 78

17.3 Remote control instruction s ........................................................................................... 79

17.3.1 All models except for KERN CFS 50K-3 ............................................................................ 79

17.3.2 Control commands ............................................................................................................. 79

17.3.3 Printing commands ............................................................................................................ 79

17.3.4 Model CFS 50K-3 ............................................................................................................... 80

17.3.5 User identification, scale identification, store article name ................................................. 80

17.3.6 Register / call article via RS232 ......................................................................................... 80

17.4 I/O-function ....................................................................................................................... 81

18 Servicing, maintenance, disposal ......................................................... 82

18.1 Cleaning ............................................................................................................................ 82

18.2 Servicing, maintenance ................................................................................................... 82

18.3 Disposal ............................................................................................................................ 82

19 Instant help ............................................................................................. 83

19.1 Error messages ................................................................................................................ 84

20 Declaration of c onform ity ...................................................................... 85

CFS/CCS-BA-e-1422 3

1 Technical data

1.1 KERN CFS KERN CFS 300-3 CFS 3K-5 CFS 6K0.1

Readability (d) 0.001 g 0.01 g 0.1 g
Weighing range (max) 300 g 3 kg 6 kg
Reproducibility 0.002 g 0.02 g 0.1 g
Linearity ± 0.004 g ± 0.04 g ± 0.2 g
Stabilization time 2 s
Weigh ing Units g, lb kg, lb
Recommended adjusting

weight (not supplied)

200 g(F1) +

100 g(F1)

2 kg(F1) +

1 kg(F1)

6 kg (F2)

Warm-up time 2 h
Minimum unit weight at

piece count
Reference unit weights at

piece counting

5 mg 50 mg 100 mg

freely selectable

Net weight (kg) 2.5 kg 3.8 kg
Permissible ambient

condition

0° C to 40° C

Humidity of air max. 80 % relative (not condensing)
Weighing plate, stainless

steel

Dimensions wind screen
[mm]

ᴓ 80 mm

inside

158 x 143 x 61

outside

167 x 154 x 80

294 x 225 mm

-

Dimensions housing
(l x L x h) [mm]

Mains connection
Rechargeable battery

(optional)

Mains adapter 230 V AC, 50 Hz; 12 V DC balance, 500 mA

Operating duration approx. 70 h / loading time approx.

320 x 350 x 125 mm

12 hours

4 CFS/CCS-BA-e-1422

KERN CFS 15K0.2 CFS 30K0.5 CFS 50K-3

Readability (d) 0.2 g 0.5 g 1 g
Weighing range (max) 15 kg 30 kg 50 kg
Reproducibility 0.2 g 0.5 g 1 g
Linearity ± 0.4 g ± 1 g ± 2 g
Stabilization time 2 s
Weigh ing Units kg, lb
Recommended adjusting

weight (not supplied)

15 kg (F2) 30 kg (F2) 50 kg (F2)

Warm-up time 2 h
Minimum unit weight at

piece count
Reference unit weights at

piece counting

200 mg 500 mg 1 g

freely selectable

Net weight (kg) 3.8 kg 5.5 kg
Permissible ambient

condition

0° C to 40° C

Humidity of air max. 80 % relative (not condensing)
Weighing plate, stainless

steel
Dimensions housing

(l x L x h) [mm]

294 x 225 370 x 240

320 x 350 x 125 370 x 360 x 125

Mains connection
Rechargeable battery

(optional)

Mains adapter 230 V AC, 50 Hz; 12 V DC balance, 500 mA

Operating duration approx. 70 h / loading time approx.

12 hours

CFS/CCS-BA-e-1422 5

Dimensions:

Models

Model

• CFS 300-3

• CFS 3K-5

• CFS 6K0.1

• CFS 15K0.2

• CFS 30K0.5

• CFS 50K-3

6 CFS/CCS-BA-e-1422

1.2 Counting systems KERN CCS

KFP

CFS

g

Model

KERN

Bulk material
balance

CCS 6K-6 KFP 6V20M

CCS 10K-6 KFP 15V20M

CCS 30K0.01 KFP 30V20M

CCS 30K0.1 KFP 30V20M

CCS 60K0.01 KFP 60V20M

CCS 60K0.01L KFP 60V20LM

CCS 60K0.1 KFP 60V20M

CCS 60K0.1L KFP 60V20LM

CCS 150K0.01 KFP150V20M

CCS 150K0.01L KFP150V20LM

Weighing

range
[Max]

kg

Readab

ility

[d]

g

Weighing
pan

6 2 230x230x100
15 5 300x240x100
30 10 400x300x128
30 10 400x300x128
60 20 400x300x128
60 20 500x400x137
60 20 400x300x128
60 20 500x400x137

150 50 500x400x137
150 50 650x500x142

R ec ommended
calibration
weight,

included,

kg [class F1]

not

6
15
30
30
50
50
50
50

150
150

Reference
scale

CFS300-3

CFS 300-3

CFS 3K-5

CFS 6K0.1

CFS 3K-5

CFS 3K-5

CFS 6K0.1

CFS 6K0.1

CFS 3K-5

CFS 3K-5

Weighing

range
[Max]

Readability

[d]

g

Minimum
piece weight
[count]
g/piece

300 0.001 0.005

300 0.001 0.005
3000 0.01 0.05
6000 0.1 0.1
3000 0.01 0.05
3000 0.01 0.05
6000 0.1 0.1
6000 0.1 0.1
3000 0.01 0.05
3000 0.01 0.05

CCS 150K0.1 KFP150V20M

CCS 150K0.1L KFP150V20M

CCS 300K0.1 KFP300V20M

CCS 300K0.01 KFP300V20M

150 50 500x400x137
150 50 650x500x142
300 100 650x500x115
300 100 650x500x115

150
150
300
300

CFS/CCS-BA-e-1421 7

CFS 6K0.1

CFS 6K0.1

CFS 6K0.1

CFS 3K-5

6000 0.1 0.1
6000 0.1 0.1
6000 0.1 0.1
3000 0.01 0.05

KFP

CFS

g

Model

KERN

CCS 600K-2 KFP 600V20SM

CCS 600K-2L KFP 600V20M

CCS 600K-2U KFU 600V20M

CCS 1T-1

CCS 1T-1L KFP 1500V20M

CCS 1T-1U KFU 1500V20M

CCS 3T-1

CCS 3T-1L

Bulk material
balance

KFP 1500V20SM

KFP 3000V20LM

KFP 3000V20LM

Weighing

range
[Max]

kg

600 0.01 1000x1000x80
600 0.01 1500x1250x80

600 0.01 840x11190x90
1500 0.1 1000x1000x80
1500 0.1 1500x1250x80
1500 0.1 840x1190x90
3000 0.1 1500x1250x80
3000 0.1 1500x1500x80

Reada

bility

[d]

g

Weighing pan Rec ommended

calibration
weight,

included,

kg [class F1]

not

600
600

600
1500
1500
1500
3000
3000

Reference
scale

CFS 3K-5

CFS 3K-5

CFS 3K-5

CFS 6K0.1

CFS 6K0.1

CFS 6K0.1

CFS 6K0.1

CFS 6K0.1

Weighing

range
[Max]

3000 0.01 0.05
3000 0.01 0.05
3000 0.01 0.05
6000 0.1 0.1
6000 0.1 0.1
6000 0.1 0.1
6000 0.1 0.1
6000 0.1 0.1

Readability

[d]

g

Minimum
piece weight
[count]
g/piece

8 CFS/CCS-BA-e-1422

2 Appliance overview

2.1 Counting scales KERN CFS

Model:
CFS 300-3

Models:
CFS 3K-5, CFS 6K0.1, CFS 15K0.2, CFS 30K0.5

1. Weighing plate / rechargeable battery compartment (under
weighing plate)

2. Windshield

3. Bubble level

4. RS 232 interface

5. Second balance interface

6. Footscrews

7. ON/OFF switch

8. Mains adapter connection

CFS/CCS-BA-e-1421 9

Model CFS 50K-3

1. Weighing pan

2. Bubble level

3. RS 232 interface

4. Second balance interface

5. Footscrews

6. Connection of mains adapter

7. ON/OFF switch

10 CFS/CCS-BA-e-1422

2.2 Counting systems KERN CCS

In factory the counting system KERN CCS is preconfigured in a way that no
more changes will be necessary.





Bulk material balance KERN KFP

Reference balance KERN CFS

When attaching a bulk scales (not pre-adjusted by KERN), the following must





 Adjustment / linearisation of bulk scales, cf. chapter 14 / 15

Reference balance KERN CFS

2.3 Counting systems with your selected bulk scales

be complied with:

Connect bulk scales with a suitable cable via the second-balance

interface. Interface connection allocation cf. chapter 16

Adjustment of bulk scales, cf. chapter 13

Example 1: High-load bulk scales

CFS/CCS-BA-e-1422 11

Example 2: High-load reference scale





Bulk material balance KERN KFP

Reference scale KERN CFS 50K-3

12 CFS/CCS-BA-e-1422

2.4 Overview of display

Weight

Average piece weight

Quantity

Accumulator’s loading state, cf.

chapter 6.5

Weight

Average piece weight

Accumulator’s loading state, cf. chapter 6.5

Quantity

Models CFS 300-3, CFS 3K-5, CFS 6K0.1, CFS 15K0.2, CFS 30K0.5:

Model CFS 50K-3:

CFS/CCS-BA-e-1422 13

2.4.1 Display weight

CFS 50K-3

1

2

2. Bulk scales e.g. KERN K FP

Here the weight of your goods is displayed in [kg].

Indicator [] atop the symbol shows:

NET

Storage battery status display
Net weight

Model

a

lb/kg

Stability state indication

Zeroing display
Current weighing unit

2.4.2 Display average piece weight

Here the average reference weight of a sample is displayed in [g]. This value is
either numerically entered by user or calculated by weighing on balance.

Indicator [] atop the symbol shows:

Number of parts placed on balance
too small

M+

piece
Data in summation memory
Active balance:

Piece below minimum weight of

1. Reference balance KERN CFS

2.4.3 Display quantity

Here the current piece quantity (PCS = pieces) or in totalizing mode the sum
Sum of the placed parts is displayed, see chapter 10

Indicator [] atop the symbol shows:

+

TOL

Tolerance control in counting mode
Tolerance control in weighing mode
Goods to be weighed above tolerance limit
Goods to be weighed within tolerance range

-

14 CFS/CCS-BA-e-1422

Goods to be weighed below tolerance limit

2.5 Keyboard overview

• Totalization

• Data output (menu setting , see chapter 12.2)

 Models CFS 300-3, CFS 3K-5, CFS 6K0.1, CFS 15K0.2, CFS 30K0.5

Selection Function in Weighing mode

• Numeric keys

…..

• Decimal point

• At numeric input digit selection to the left

• Delete

• Display total weight /number of weighings / total quantity

• At numeric input digit selection to the right

• Store/call article, cf. chapters 11.1 / 11.2

• Fill-to-target function (cf. chapter 9)

• Switch-over balance,

see chap. 7.3

• Input of the average piece weight by weighing, see chap.

8.1

• Numeric input of the average piece weight see chapter 8.2

• Leafing through the menu

• Switch-over weighing unit

CFS/CCS-BA-e-1422 15

• Taring

• Confirm

• Zeroing

• Back to menu/weighing mode

 Model CFS 50K-3:

Selection Function in Weighing mode

• Article direct keys,

…..

cf. chapter 11.3

• Numeric keys

…..

• Decimal point

• Delete

16 CFS/CCS-BA-e-1422

• Data output (menu setting , see chapter 12.2)

• Summing up / printing (menu adjustment ,

cf. chapter 12.2

• Display total weight /number of weighings / total quantity

• Fill-to-target function (cf. chapter 9)

• Store/call article, cf. chapters 11.1 / 11.2

• Switching over the scale, cf. chapter 7.3

• At numeric input digit selection to the left

• Input of the average piece weight by weighing, see chap. 8.1

• Leafing through the menu

• Numeric input of the average piece weight see chapter 8.2

• Switch-over weighing unit

• Taring

• Confirm

• Zeroing

• At numeric input digit selection to the right.

• Back to menu/weighing mode

CFS/CCS-BA-e-1422 17

3 Basic instruct ions

3.1 Proper use

The balance / counting system you purchased is intended to determine the
weighing value of material to be weighed. It is intended to be used as a “non­automatic balance”, i.e. the material to be weighed is manually and carefully placed
in the centre of the weighing pan.. As soon as a stable weighing value is reached
the weighing value can be read.

3.2 Improper Use

Do not use balance / counting system for dynamic weighing. In the event that small
quantities are removed or added to the material to be weighed, incorrect weighing
results can be displayed due to the “stability compensation“. (Example: Slowly
draining fluids from a container on the balance.)
Do not leave permanent load on the weighing pan. This may damage the
measuring system.
Impacts and overloading exceeding the stated maximum load (max) of the balance
/ counting system, minus a possibly existing tare load, must be strictly avoided.
Balance may be damage by this.
Never operate balance / counting system 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 scale / the counting system may only be used according to the described
preconditions. Other areas of use must be released by KERN in writing.

3.3 Warranty

Warranty claims shall be voided in case

• Our conditions in the operation manual are ignored

• The appliance is used outside the described uses

• The appliance is modified or opened

• Mechanical damage or damage by media, liquids, natural wear and tear

• The appliance is improperly set up or incorrectly electrically connected

• The measuring system is overloaded

18 CFS/CCS-BA-e-1422

3.4 Monitoring of Test Resources

In the framework of quality assurance the measuring-related properties of the
balance and, if applicable, the testing weight, must be checked regularly. The
responsible user must define a suitable interval as well as type and scope of this
test. Information is available on KERN’s home page (www.kern-sohn.com with
regard to the monitoring of balance test substances and the test weights required
for this. In KERN's accredited DKD calibration laboratory test weights and balances
may be calibrated (return to the national standard) fast and at moderate cost.

4 Basic Safety Precautions

4.1 Pay attention to the instructions in the Operation Manual

 Carefully read this operation manual before setup and

commissioning, even if you are already familiar with KERN balances.

 All language versions contain a non-binding translation.

The original German is binding.

4.2 Personnel training

The appliance may only be operated and maintained by trained personnel.

5 Transport and stora ge

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

 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.

CFS/CCS-BA-e-1422 19

6 Unpacking, Setup and Commissioning

• Balance (see chap. 2.1)

• Reference balance KERN CFS, see chap. 2.2

• Power cable

• Bulk material balance KERN KFP (see chap. 2.2)

• Protective cover

• Opera ting instructions KERN CFS/CCS

• Operating manual

• Operating instructions KERN KFP

6.1 Installation Site, Location of Use

The balances / counting systems 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 /
counting system.

On the installation site observe the following:

• Place the balance / counting system 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 / counting system against high humidity, vapours and

dust;

• Do not expose the device to extreme dampness for longer periods of time.
Non-permitted condensation (condensation of air humidity on the appliance)
may occur if a cold appliance is taken to a considerably warmer
environment. In this case, acclimatize the disconnected appliance for ca. 2
hours at room temperature.

• Avoid static charge of goods to be weighed or weighing container.

Major display deviations (incorrect weighing results) may be experienced should
electromagnetic fields (e.g. due to mobile phones or radio equipment), static
electricity accumulations or instable power supply occur. Change location or
remove source of interference.

6.2 Unpacking, Scope of delivery

Remove device and accessories carefully from packaging, remove packaging
material and place device at the planned work place. Verify that there has been no
damage and that all packing items are present.

6.2.1 Scope of delivery / serial accessories KERN CFS KERN CCS

20 CFS/CCS-BA-e-1422

6.3 Installing / removing transport fittings

 Remove transport lock, if applicable.

KERN CFS 3K0.5, CFS 6K0.1:

KERN CFS 300-3:

Bulk scales KERN KFP (illustration example):

KERN KFP 6V20M, KFP 6V20LM, KFP 15V20M.

Please take further details from the installation manual, added to the platform.

CFS/CCS-BA-e-1422 21

 Level balance with foot screws until the air bubble of the water balance is in

the prescribed circle.

 Check levelling regularly

in the counting systems KERN CCS.

 Install weighing plate and wind screen, if applicable, if needed.

 Interconnect reference scale and bulk scales via the second-scale interface

6.4 Mains connection

Power is supplied via the external mains adapter. The stated voltage value must be
the same as the local voltage.
Only use original KERN mains adapters. Using other makes requires consent by
KERN.

6.5 Rechargeable battery operation (optional) The rechargeable battery is charged via the delivered power cable.

Before the first use, the rechargeable battery should be charged by connecting it to
the mains power cable for at least 15 hours. The operation time of the rechargeable
battery is approx. 70 hours. When connecting a second balance, the operation time
will be reduced.
To save the rechargeable battery, in the menu (see chap.12.2) the automatic
switch-off function [„ “  „ „] can be activated, switch-off time selectable
according to 0, 3, 5, 15, 30 minutes.

If an arrow appears on the weight display [] above the battery symbol or
"bat lo" when turning on the balance, this is an indication that the capacity of the
rechargeable battery will soon be exhausted. The balance will be ready to operate
for about another 10 hrs., then it will switch off automatically. Connect the power
cable as soon as possible to load the rechargeable battery. Charging time until
complete recharging is approx. 12h.

The LED display informs you during loading about the loading status of the
rechargeable battery.

red: Voltage has dropped below prescribed minimum. Connect mains

adapter to load the rechargeable battery.
green: Rechargeable battery completely reloaded
yellow: Rechargeable battery very low. Connect mains adapter as soon as

possible to load the rechargeable battery.

22 CFS/CCS-BA-e-1422

6.6 Connection of peripheral devices

Before connecting or disconnecting of additional devices (printer, PC) to the data
interface, always disconnect the balance from the power supply.
With your balance, only use accessories and peripheral devices by KERN, as they
are ideally tuned to your balance.

6.7 Initial Commissioning

In order to obtain exact results with the electronic balances, your balance must
have reached the operating temperature (see warming up time chap. 1).
During this warming up time the balance must be connected to the power supply
(mains, accumulator or battery).
The accuracy of the balance depends on the local acceleration of gravity.
Strictly observe hints in chapter Adjustment.

6.8 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 see chapter 14.

CFS/CCS-BA-e-1422 23

7 Basic Operation

7.1 Switching on/off

 Actuate power switch (cf. chapter 2) at the right bottom of the scale to the front.

The balance will carry out a self-test As soon as the weight display appears, the
balance is ready for weighing.

 To switch-off push backward the switch-on/switch-out on the right lower side of

the balance.

7.2 Zeroing

Resetting to zero corrects the influence of light soiling on the weighing plate. The
resetting range of the balance was adjusted to ± 2% max. by factory.
Further adjustments are possible in the menu, see chapter 12.

When using as counting system the zeroing range of both balances can be set in
the menu, see chapter 13.

Manual

 Unload the balance

 Press , the balance starts resetting to zero.

The [] symbol over a appears.

Automatic

In the menu the automatic zero point correction can be switched off or the amount
can be changed, see chapter 13.

7.3 Switching over reference scale  bulk scales if used as counting system

For piece counting a platform can be connected via the second balance interface.
In the counting system KERN CCS the quantity counting is made on the bulk
material balance KERN KFP. The reference balance KERN CFS permits due to its
high resolution a very precise determination of the average piece weight.

The second balance can be operated in the same manner like the first balance.

By pressing the display changes from one to the other balance.
In the display appears or .

The appeared [] displays the active balance.

24 CFS/CCS-BA-e-1422

Display example model CFS 6K0.1:

(1) Reference balance KERN CFS

(2) Bulk scales,

e.g.: KERN KFP with
counting system KERNCCS

CFS/CCS-BA-e-1422 25

7.4 Weighing with tare

The tare value will be rounded up according to the readability of the balance,
displayed as -105 g.

A tare value can be entered for the reference as well as for the bulk material
balance. Before setting a tare value select active balance,
see chap. 9.3.

7.4.1 Taring

 Deposit weighing vessel. After successful stop check press the TARE button.

Zero display and the indicator [] above NET appear.
The weight of the container is now internally saved.

 Weigh the material, the net weight will be indicated.
 After removing the weighing container, the weight of the weighing container

appears as negative display.

 To delete the tare value, remove load from weighing pan and press the TARE-

key.

 The tare procedure can be repeated as many times as necessary, for example

with initial weighing of several components for a mix (add-on weighing). The
limit is reached when the total weighing range capacity is full.

7.4.2 Numeric entering of tare weight

 Unload and reset to zero the balance.
 Input known tare weight via the numeric keys with decimal point, and confirm

with TARE key. The entered weight will be stored as tare weight and displayed
with negative sign. The indicator [] above NET appears.

 Put the filled weighing container on the balance, the net weight will be

displayed.

 The tare value remains stored until it is deleted with the TARE key.

e.g. at a balance 60 kg max/5 g readability the input value of 103 g will be

7.4.3 Switch-over weighing unit

Depending on the model, pressing the UNIT key may switch over between g / kg 
lb (only with menu adjustment F1 oFFUnit kg / lb).
The indicator [] shows the active unit.

26 CFS/CCS-BA-e-1422

8 Parts counting

Before the balance can count parts, it must know the average part weight (i.e.
reference). Proceed by putting on a certain number of the parts to be counted. The
balance determines the total weight and divides it by the number of parts, the so­called reference quantity. Counting is then carried out on the basis of the calculated
average piece weight.
As a rule:
The higher the reference quantity the higher the counting exactness.

 The average piece weight can only be determined by stable weighing

values.

 If weighing values are under zero, the piece counter display shows a

negative number of items.

 The precision of the average unit weight can be increased at any time

while units are being counter by inputting the displayed number of units
and confirming by or (in CFS 50K-3 models). After the reference

optimization sounds a signal tone. As the additional pieces increase the
base for the calculation, the reference also becomes more exact.

CFS/CCS-BA-e-1422 27

8.1 Determination of the average piece weight by weighing Set reference

 Reset balance to zero or tare the empty weighing container if necessary.
 Place on the weighing plate a known number (e.g. 10 items) of individual pieces

as a reference.
Input the number of reference pieces via the number keys.
Wait for stability display and confirm with or (model CFS 50K-3) within 5 sec.

The scale shall detect the average piece weight and will then display the number
of pieces.

Display example model CFS 6K0.1:

28 CFS/CCS-BA-e-1422

Display example model CFS 50K-3:

CFS/CCS-BA-e-1422 29

S1

Active balance, see chap. 7.3

ID: 123456

User identification number (cf. chapter 12.2)

N 2.4986 kg

Net weight

49.9755 g/pcs

Average piece weight

50 pcs

Quantity

Count the items

 Tare if necessary, place weighing good and read off the number of items.

Display example model CFS 6K0.1:

Display example model CFS 50K-3:

Interconnecting an optional printer, the display value will be output by pressing

(menu adjustments F1 oFF  ACC off; F2 Prt P mode Print Au OFF, cf.

chapter 12.2).

Printout example KERN YKB 01N / CFS 6K0.1:

Further printout examples cf. chapter 17.2.

Delete average piece weight

 Press

30 CFS/CCS-BA-e-1422

8.2 Numeric input of the average piece weight Set reference

 Input known average piece weight, e.g. 10 g, with the numeric keys and confirm

with or (models CFS 50K-3) within 5 sec.
If in the weight display as weighing unit [kg] is active, the average piece weight

will be displayed in [g]. If as weighing unit [lb] is active, the average piece weight
is also displayed in [lb].

Display example model CFS 6K0.1:

CFS/CCS-BA-e-1422 31

Display example model CFS 50K-3:

Count the items

 Tare if necessary, place weighing good and read off the number of items.

Interconnecting an optional printer, the display value will be output by pressing

, display and printout examples cf. chapter 10.1.

Delete average piece weight

 Press

32 CFS/CCS-BA-e-1422

8.3 Automatic reference optimization

If at the reference determination the placed weight or the placed piece number is
too small, in the display of the average piece weight the triangle symbol will appear

over [ ] or [ ].
To optimize the calculated average piece weight automatically, add further parts
whose number is smaller than that of the first reference determination. After the
reference optimization sounds a signal tone. For each reference optimization the
average piece weight is newly calculated. As the additional pieces increase the
base for the calculation, the reference also becomes more exact.

Pressing or (models CFS 50K-3), recalculation can be prevented and the
reference weight can thus be blocked.

Automatic reference optimization will be deactivated as soon as the number of
added parts exceeds the saved reference quantity.

Some models allow this feature on or off in the menu.

CFS/CCS-BA-e-1422 33

8.4 Counting with counting system

(Illustration example)





Bulk material balance e.g. KERN KFP

Reference balance KERN CFS

• Here pieces of huge quantities will
be counted.

• Big parts (max > 3kg) are counted
on the platform.

• If in the determination of the
average piece weight no such high
resolution is asked for as that of the
KERN CFS, the reference formation
can also be made in the bulk
material balance.

Counting with bulk material balance:

1. On the reference balance KERN CFS set average piece weight, see chap. 8.1.
or chap. 8.2.

2. Switch over balance with (see chap. 7.3)

3. Put empty container onto bulk scales’ weighing plate and tare.

• Due to its high resolution it is useful
for accurate determination of the
average piece weight.

• Smallest parts (max < 3kg) are
counted on the precise KERN CFS.

4. Fill counted quantity in the vessel on the bulk material balance. The piece
number is shown in the display.

34 CFS/CCS-BA-e-1422

Display example model CFS 6K0.1:

In order to avoid errors at the piece number determination, both balances
case of non-compliance counting errors will result!

must be adjusted with the same acceleration due to gravity (see chap. 14). In

CFS/CCS-BA-e-1422 35

9 Fill-to-target function

The balance allows weighing of goods to a certain target weight or target piece
number within defined tolerances. With this function one can also check if the
weighing good is within a defined tolerance range. Tolerance control is possible in
weighing or target mode.
Reaching the target value is indicated by an acoustic (if activated in menu) and an
optic signal (tolerance mark ).

Audio signal:

The acoustic signal is dependent of the adjustment in the menu block
„F1 oFFBEEP“.
Options:

bEEP off Acoustic signal turned off
bEEP on in Acoustic signal sounds if the weighted piece is within the given

tolerance

bEEP on out Acoustic signal sounds if the weighted piece is outside the

given tolerance

Optical signal:

The tolerance marker  provides the following information:

Target number /target weight exceeds given tolerance

Target number /target weight within given tolerance

Target number /target weight below given tolerance

36 CFS/CCS-BA-e-1422

9.1 Tolerance check for target weight

 Press , the active tolerance weighing mode is indicated.

 If needed, select tolerance control for target weight (PSt nEt) with or

(models CFS 50K-3).

Display example model CFS 6K0.1:

 Press the TARE key , which shows the currently set upper threshold.
 To change, input desired value, e.g. 5.500 kg with the numeric keys.

 Confirm with TARE key; the currently adjusted minimum threshold will be

displayed.

 To change, input desired value, e.g. 5,0000 kg with the numeric keys.

 Confirm with TARE key, the tolerance control will start.

The indicator [] above appears.

CFS/CCS-BA-e-1422 37

 Put on the weighed material and check whether the weighed material is within

 For tolerance control, also only one limit value can be set.

the given tolerance, alongside the tolerance mark  / acoustic signal.

Display of tolerance mark , if weighing goods are under the specified tolerance:

Display of tolerance mark , if weighing goods within the specified tolerance:

Display of tolerance mark , if weighing goods above the specified tolerance:

 If both limit values are deleted, the tolerance control is deactivated.
 Delete limit values:

When inputting the upper and lower threshold press and confirm with
the TARE-key.

38 CFS/CCS-BA-e-1422

9.2 Tolerance check for target quantity

 Press , the active tolerance weighing mode is indicated.

 If needed, select tolerance control for target weight (PSt nEt) with or

(models CFS 50K-3).

Display example model CFS 6K0.1:

 Press the TARE key , which shows the currently set upper threshold.
 To change, input the desired value, e.g. 100 pieces, with the numeric keys.

 Confirm with TARE key; the currently adjusted minimum threshold will be

displayed.

 To change, input the desired value, e.g. 90 pieces, with the numeric keys.

 Confirm with TARE key, the tolerance control will start.

The indicator  above appears.

CFS/CCS-BA-e-1422 39

 Determine the average piece weight (see chap. 10.1 or 10.2), place the

For tolerance control, also only one limit value can be set.

weighing goods and check using the tolerance mark , if the number of the
placed pieces is under, within or above the specified tolerance.

Display of tolerance mark , if weighing goods are under the specified tolerance:

Display of tolerance mark , if weighing goods within the specified tolerance:

Display of tolerance mark , if weighing goods above the specified tolerance:



 If both limit values are deleted, the tolerance control is deactivated.
 Delete limit values:

When inputting the upper and lower threshold press and confirm with
the TARE-key.

40 CFS/CCS-BA-e-1422

10 Totalization

Before the totalizing process select the active balance, see chap. 7.3.

Tolerance control is possible in weighing or target mode.
When using in the counting system, no matter, if the weighed goods are on the
reference or on the bulk material balance.

Preparing:

 When using as counting system select using the balance, on which will be

totalized. The appeared [] displays the current balance.

 When totalizing in counting mode set the average piece weight.

(see chap. 8.1 or 8.2)

 If necessary, tare the empty balance container.

10.1 Manual totalizing

With this function the individual weighing values are added into the summation
memory by pressing and edited, when an optional printer is connected.

• Menu settings:
„F1 off“  „ACC“  „ON“ (unavailable in model CFS 50K-3)
„F2 Prt“  „P mode“  „Print“  „Au OFF“ (cf. chapter 12.2)

• When using as counting system there can be totalized on the reference as
well as on the bulk material balance.

Add up:

 Place weighing goods A.

Wait until stability display is displayed, then press or (models CFS 50K-

3). The weight value or number will be stored and be output if connected to an
optional printer.

 Remove the weighed good. More weighed goods can only be added when the

display ≤ zero.

 Place goods to be weighed B.

Wait until stability display is displayed, then press or (models CFS 50K-

3). The weight value or the number of items are added in the summation memory
and printed out. Total weight, number of weighing procedures as well as total
parts counting appear 2 sec.

 Add more weighed goods as described before. Please note that the balance must

be unloaded between the individual weighing procedures.

CFS/CCS-BA-e-1422 41

S 1

Active balance, see chap. 7.3

ID: 123456

User identification number (cf . chapter 12.2)

No. 2

Number weighing processes

C 4.9975kg

Total weight

C 500 pcs

Total number of pieces

 This process can be repeated 99 times or until the weighing range of the balance

is exhausted.

Display of the saved weighing data:

 Press , the total weight, weighing number, and total number of pieces will be

displayed and be output if connected to an optional printer.

Display example model CFS 6K0.1:

Total weight placed on balance: Number weighing

processes.

Printout example KERN YKB-01N:

C

Total number of pieces:

Further printout examples cf. chapter 17.2.

Delete weighing data:

 Press or (models CFS 50K-3), so that the total weight, weighing number,

and total number of pieces will be displayed. During this display press .
The data in the summation memory are deleted.

42 CFS/CCS-BA-e-1422

10.2 Automatic adding-up

cf. chapter 10.1.

This function is used to add up the individual weighing values automatically into the
sum storage once the scale is relieved, without pressing or (models CFS

50K-3); and edited if interconnected to an optional printer.

• Menu settings:
„F1 off“  „ACC“  „ON“ (unavailable in model CFS 50K-3)

„F2 Prt“  „P mode“  „Print“  „Au ON“, cf. chapter 12.2

Add up:
 Place weighing goods A.

• When using as counting system there can be totalized on the reference as
well as on the bulk material balance.
Before the totalizing process select the active balance, see chap. 7.3.

After the standstill control sounds a signal tone. Unload the weighing good, the
weighing value is added into the summation memory and printed out.

 Place goods to be weighed B.

After the standstill control sounds a signal tone. Unload the weighing good, the
weighing value is added into the summation memory and printed out.

 Add more weighed goods as described before. Please note that the balance

must be unloaded between the individual weighing procedures.

 This process can be repeated 99 times or until the weighing range of the balance

is exhausted.

Display and deletion of the weighing data, and printout example

CFS/CCS-BA-e-1422 43

11 Store article information

The scale has more than 100 article storage places for frequently used tare values,
average piece weights and article names.
These data can be accessed by calling up the corresponding number of a certain
article.

Model CFS 50K-3 is additionally provided with 5 direct keys ~ , cf. chapter

11.3).

11.1 Store article Preparation:

 If necessary set balance to zero using .
 Tare if using a weighing container.

In case of counting systems, consider whether bulk scales or counting scale
should be tared. Select bulk material or reference balance accordingly by .

The displayed [] shows the active type of scale, cf. chapter 7.3.
Either put on weighing container and tare with TARE key (cf. chapter 7.4.1.) or

numerically input tare value (cf. chapter 7.4.2).
Tare values can only be saved when they are situated in the admitted taring
range (factory setting > 2 % max).

At values < 2 % max, reset balance with .

 If used as a counting system select reference balance using .
 Either detect average piece weight (e.g. 10 g) by weighing (cf. chapter 8.1) or

input numerically (cf. chapter 8.2).

44 CFS/CCS-BA-e-1422

Store article:

 Press to input the storage place number (e.g. number 27)

Display example model CFS 6K0.1:

 Input „2“ and „7“ with the numeric keys.

 Press , the currently stored article name will be displayed. The first digit is

flashing.

 Delete by , if necessary, and overwrite with new article name as described

below (no more than 12 characters, e.g. „KERN 1234 AB“).

CFS/CCS-BA-e-1422 45

For input of numbers, actuate shortly the numeric button.

1

- / \ 2

A B C

3

D E F

4

G H I

5

J K L

6

M N O

7

P Q R S

8

T U V

9

W X Y Z

0

_ [ ]

_ = Space

chapter 17.3.5 (unavailable in model CFS 50K-3K)

For input of letters press the numeric button and keep it pressed until the
desired letter is displayed. The characters according to keyboard assignation
run through.

Overview data input / data output:

Use to move number selection to the left, the respective active position
flashes.

Use to move the number selection to the right, the respective active
position flashes.

 Confirm input by . The data (tare value, average piece weight, article

designation) are stored under the entered PLU-number; the data can be called­up at any time by calling the respective PLU-number.

Article information may also be stored and called via the RS232 interface, cf.

46 CFS/CCS-BA-e-1422

11.2 Call article

 When using as counting system use to select the balance, on which the

tare value is stored. The appeared [] displays the current balance.

 Press ; „PLU“ to input the storage place number will show.

 Call desired number, e.g. 27; press numeric keys „2“ and „7“ to this end.

 Press again, the storage place number (e.g. PLU 27) and the article name

will be shown for 1 second.
If the data shall be displayed longer time, keep pressed.

The display changes into the counting mode, the stored tare value e.g. 500 g
and the average piece weight e.g. 10g /pce. are displayed.

 Place load on pan and read the number of pieces.

CFS/CCS-BA-e-1422 47

 When connecting an optional printer, the data can be edited by pressing

N. 1.9990 kg

10 g/pcs

200 pcs

Printout example KERN YKB-01N:

S 1
ID: 123456
KERN 1244 AB

Active balance, see chap. 7.3

User identification number (cf . chapter 12.2)
Article name (cf. chapter 11.1)

Placed net weight
Average piece weight
Quantity placed on balance

Further printout examples cf. chapter 17.2.

11.3 Article direct keys ~ (only model CFS 50K-3)

1. Preparation, cf. chapter 11.1

2. Store article

 Press desired direct key e.g. for approx. 3 seconds, storage place „1“ and

the currently stored article name will be shown. The first digit is fla s hing.

 Input article name as described in chapter 11.1 (no more than 12 characters)

 Confirm input by . The data (tare value, average piece weight, article name)

will be stored under the selected direct key.

48 CFS/CCS-BA-e-1422

3. Call article

1.9990 kg NET

10 g U.W:

200 pcs

Quantity placed on balance

TOTAL

--------------------------------

1.9990 kg NET

Total weight

200 pcs

Total number of pieces

1 NO

Number weighing processes

 Press direct key e.g. ; the storage place number and the article name will

be shown for 1 second.

The display changes into the counting mode, the stored tare value e.g. 500 g
and the average piece weight e.g. 10g /pce. are displayed.

 Place load on pan and read the number of pieces.

 If connected to an optional printer, the data will be added up into the sum

storage and edited by pressing .

Printout example CFS 50K-3 / KERN YKB 01N:

LOCAL SCALE
ID: 123456
ABCDEF

Active balance, see chap. 7.3
User identification number (cf . chapter 12.2)
Article name

Placed net weight
Average piece weight

CFS/CCS-BA-e-1422 49

12 Menu

The first menu block is displayed.

    

items can be accessed in succession.

available settings.

the menu with or (model CFS 50K-3).

The menu is structured in the following menu blocks.

1.

2.

3.

4.

5.

Balance settings
Settings serial interface
Input/display user identification number
Input/display scale identification number
Configuration of bulk scale

12.1 Navigation in the menu

Call up menu

 Switch-on balance and during the selftest press .

Select menu block

 With or (model CFS 50K-3) the separate menu

items can be accessed in succession.

Select menu item  Confirm selected menu block with TARE. The first menu

item is displayed, e.g. 

 With or (model CFS 50K-3) the separate menu

Select setting  Confirm selected menu point with TARE. The current

setting will be displayed.

Change settings

 With or (model CFS 50K-3) switch over to the

Acknowledge setting /
exit the menu

 Press , balance will return to submenu
 Either make further adjustments in the menu or return to

Return to weighing
mode

 Press or (model CFS 50K-3) again

50 CFS/CCS-BA-e-1422

12.2 Menu overview

Menu block
Main menu

Menu item
Submenu

Available
Settings

12.2.1 Models 6K0.1, 15K0.2, 30K0.5, 50K-3 Explanation

resp.

(model CFS 50K-3)

Signal tone switched off
Signal tone on, if weighing value

within tolerance limits
Signal tone on, if weighing value

outside tolerance limits
Display background illumination off

Display background illumination on
Background illumination switches on

automatically when loaded or a
button is pressed

Weighing unit, switch over by
between kg  lb by

Weighing unit " kg"
Weighing unit " lb"
Auto-off function, balance will switch

off automatically aft er the set time.
Selectable 0/3/5/15/30 minutes.

(unavailable in
model CFS 50K-3)

Totalizing mode on
Totalizing mode off

Data output of stable weighing values
after pressing

Automatic data output of st able
weighing values after unloading the
balance

Remote control commands models CFS
6K0.1, CFS 15K0.2, CFS 30K0.5, CFS
50K-3

Remote control commands
model CFS 300-3, CFS 3K-5

Continuous data output of all
weighing data, (totalizing deactivated)

Continuous data output only
weight value

CFS/CCS-BA-e-1422 51

Baud rate 600

Baud rate 1200
Baud rate 2400
Baud rate 4800
Baud rate 9600
8 bits, no parity
7 bits, even parity
7 bits, odd parity
Standard printer setting
Not documented

(not available in
models
CFS 300-3
CFS 3K-5
CFS 50K-3)

Input/display user identification number,

Data output format
For printout sample see chapter

17.2

max. 6 digits
Input/display scale identification number
max. 6 digits

Details
s.Chap. 13

configuration menu (password protected)

52 CFS/CCS-BA-e-1422

Menu block
Main menu

Menu item
Submenu

Available
Settings

12.2.2 Models CFS 3K-5, CFS 300-3

Explanation

resp.

(model CFS 50K-3)

Signal tone switched off
Signal tone on, if weighing value

within tolerance limits
Signal tone on, if weighing value

outside tolerance limits
Display background illumination off

Display background illumination on
Background illumination switches on

automatically when loaded or a
button is pressed

Weighing unit, switch over by
between kg  lb by

Weighing unit " kg"
Weighing unit " lb"
Auto-off function, balance will switch

off automatically aft er the set time.
Selectable 0/3/5/15/30 minutes.

(unavailable in
model CFS 50K-3)

Totalizing mode on
Totalizing mode off

Data output of stable weighing values
after pressing

Automatic data output of st able
weighing values after unloading the
balance

Remote control commands models CFS
6K0.1, CFS 15K0.2, CFS 30K0.5, CFS
50K-3

Remote control commands
model CFS 300-3, CFS 3K-5

Continuous data output of all
weighing data, (totalizing deactivated)

Continuous data output only
weight value

CFS/CCS-BA-e-1422 53

Baud rate 600

Baud rate 1200
Baud rate 2400
Baud rate 4800
Baud rate 9600
8 bits, no parity
7 bits, even parity
7 bits, odd parity
Standard printer setting
Not documented

(not available in
models
CFS 300-3
CFS 3K-5
CFS 50K-3)

Input/display user identification number,

Data output format
For printout sample see chapter

17.2

max. 6 digits
Input/display scale identification number
max. 6 digits

on Automatic reference optimization on/off
off
on Signal tone when key is pressed on / off
off
Details

s.Chap. 13

configuration menu (password protected)

54 CFS/CCS-BA-e-1422

13 Configuration of bulk sca le

 Changes may only be carried out by trained specialized personnel.

Ex factory, the scales KERN CFS respectively counting systems KERN CCS have
been programmed such that no changes are generally necessary.
But if there are special conditions of use or if as bulk material balance an other
weighing bridge (not preconfigured by KERN) is connected, in the menu block
" " the required settings can be made.

Technical data

Supply voltage: 5 VDC
Max. signal voltage 0-20 mV
Zeroing range 0-5 mv
Sensitivity > 0.02 μv
Resistance parameter 87 O Min., 4 x 350 Ω load cell
Connection 4 poles
Max. cable length 6 meter
Connection plug 9 pin d-subminiature bushing

Navigation in the menu:

 With or (model CFS 50K-3), the individual menu items may be

selected one by one.

 Confirm selected menu item with or (model CFS 50K-3). The current

setting will be displayed.

 With bzw. (model CFS 50K-3) switch over to the available settings.
 Either save with bzw. (model CFS 50K-3) or reject with or

(model CFS 50K-3).

CFS/CCS-BA-e-1422 55

The first menu block is displayed.

appears.

 Acknowledge by .

Confirm with ; the next menu item „Cnt“ will be displayed.



Menu settings:

Call up menu

 Switch-on balance and during the selftest press .

 Press repeatedly or (in CFS 50K-3 models) press

again until is displayed.

   

 Acknowledge with . The request to enter the password

 Or as standard password enter four times zero "0000" or the

stored password (input see parameter ). (Emergency
password „9999“)

 Select bulk scales „tECH“ „rEmotE“ with .

„F1 oFF“

„tECH“

„Pin“

„Pin“ „----„

„tECH“ „LoCAL“

 Acknowledge with .

 Select the weighing unit [kg or lb] with or (model

CFS 50K-3), where the adjustments shall be made.
The appeared [] displays the current weighing unit.



„tECH“ „rEmotE“

„tECH“ „Unit“

„Cnt“

56 CFS/CCS-BA-e-1422

(1) Adjusting the bulk scales, all models except for CFS 50K-3

2. Position decimal point / capacity

„CAP“

3. Readability

„div“

 Select the next menu point „AZt“ with

on display change

 Select the next menu point „0 AUto“ with .

1. Inter nal resolution

 Press , the internal resolution will be shown.

Return to menu by .
Use to select the next menu item „Cap“.

 Press on display „CAP“; the currently adjusted position

of the decimal point will be displayed.
Select desired setting with and acknowledge by .

The currently set capacity is displayed.
Delete with for changes, and input desired value with

the numeric keys.
Confirm input with , the balance returns to the menu.

„Cnt“



„dESC“ „0.00“



„SEL“ „000030“



 Select the next menu point „div“ with .

 Press , the current setting will be displayed.

Select desired setting by and confirm with , the
balance returns to the menu.

4. Automatic zero tracking

 Press , the current setting will be displayed.

Select desired setting by and confirm with , the
balance returns to the menu.

„CAP“



„inC“ „1“



„div“

„AZt“



„AZn“ „2d“



„AZt“

CFS/CCS-BA-e-1422 57

Range of loads in which the display will be set to zero after activation.

 Select the next menu point „0 manl“ with .

actuation of the zero key.

7. Password for menu access „tECH“

„Pin“

Select the next menu point „GrA“ with .

Not documented

5. Zer o adjustment range

 Press on display „0 AUto“; the current adjustment will be

shown.
Select desired setting by and confirm with , the

balance returns to the menu.

6. Manual zero tracking

Range of loads in which the display will be set to zero after

 Press , the current setting will be displayed.

Select desired setting by and confirm with , the
balance returns to the menu.

 Select next menu point „Pin“ with .

„0 AUto“

Adjustments are only
possible on the
reference scale.

„0 mAnL“



„0 mAnL“ „2“



„Pin“



 Press and input new password with numeric keys.

„Pin1“ „----„

Confirm with and repeat password input.

 Confirm with , the scale will return to its menu. On

successful input, „donE“ will be displayed; „FAIL“ will be



„Pin2“ „----„

displayed on faulty input. Repeat input in this case.

„donE“



8. Local gravitation constant „GrA“

Adjustment or linearization must be done after configuration.
Implementation of adjustment cf. chapter 14 / linearization cf. chapter 15.

58 CFS/CCS-BA-e-1422

(2) Adjustment of bulk scales, model CFS 50K-3

2. Position decimal point /

„dESC“

3. Capacity

4. Readability

„div“

„div“

1. Inter nal resolution

 Press , the internal resolution will be shown.

Return to menu by .
Select the next menu point „dESC“ with .

 Press on display „dESC“; the currently adjusted position

of the decimal point will be shown.
Select desired setting with and acknowledge by .

 Use to select the next menu item [CAP].

„Cnt“



„dESC“ „0.00“



CAP

 Press on display „CAP“; the currently adjusted capacity

will be shown.
Select desired setting with and acknowledge by .

Delete with for changes, and input desired value with
the numeric keys.

Confirm input with , the balance returns to the menu.

 Select the next menu point „div“ with .

 Press , the current setting will be displayed.

Select desired setting by and confirm with , the
balance returns to the menu.

„CAP“



„SEL“ „060.000“



„CAP“



„inC“ „5“



 Select the next menu point „AZt“ with

CFS/CCS-BA-e-1422 59

on display change

„AZt“

actuation of the zero key.

7. Password for menu access „tECH“

„Pin“

 Select the next menu point „GrA“ with .

5. Automatic zero tracking

 Press , the current setting will be displayed.

Select desired setting by and confirm with , the
balance returns to the menu.

 Select the next menu point „0 AUto“ with .

6. Manual zero tracking

Range of loads in which the display will be set to zero after

 Press , the current setting will be displayed.

Select desired setting by and confirm with , the
balance returns to the menu.

 Select next menu point „Pin“ with .

„AZt“



„AZn“ „2d“



„0 mAnL“



„0 mAnL“ „2“



„Pin“

 Press and input new password with numeric keys.

Confirm with and repeat password input.

 Confirm with , the scale will return to its menu. On

successful input, „donE“ will be displayed; „FAIL“ will be
displayed on faulty input. Repeat input in this case.

Adjustment or linearization must be done after configuration.
Implementation of adjustment cf. chapter 14. / Linearization cf. chapter 15.



„Pin1“ „----„



„Pin2“ „----„

„donE“

60 CFS/CCS-BA-e-1422

14 Adjustment

In case of non-compliance counting errors will result!

 Confirm input by .

both balances

Acknowledge with .

• Provide required adjustment weight, cf. chapter 1.

14.1 Models CFS 300-3, CFS 3K-5

The adjustment weight to be used depends on the capacity of the weight /
counting system. Implement adjustment as close to the maximum load as
possible. Info about test weights can be found on the Internet at:
http://www.kern-sohn.com

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

• In order to avoid errors at the piece quantity determination, both balances
must be adjusted with the same acceleration due to gravity.

Operation Display

 Switch-on balance and during the selftest press .

 Use the numeric keys to enter password:

Either input four times zero „0000“ as a standard
password, or input the user-defined password (input cf.
parameter „Pin“ chapter 13).

 Select bulk material or reference balance via .

The appeared [] displays the current balance.
When using as counting system, the bulk material

balance as well as the reference balance must be
adjusted. The adjustment process must be carried out on

 If necessary, at balance zero display using select

the weighing unit [g / kg or lb], which shall be used for
adjustment. The appeared [] displays the current
weighing unit.

„Pin“

„Pin“ „----„

„tECH“ „LoCAL“



„tECH“ „rEmotE“

„tECH“ „Unit“

CFS/CCS-BA-e-1422 61

( ), repeat adjustment process.

Confirm input by .

Acknowledge with .

select the weighing unit [kg or lb] which will

Acknowledge with .

 Ensure that there are no objects on the weighing pan.

Wait for stability display (indicator [] atop
expires), then press .

 Carefully place required adjustment weight into the center

of the weighing plate on display „LoAd“.
Wait for stability display, then press .

 After the adjustment the balance will carry out a self-test.

Remove adjusting weight during selftest, balance will
return into weighing mode automatically.
In case of an adjustment error or incorrect adjusting
weight the display will show an error message

14.2 Models CFS 6K0.1, CFS 15K0.2, CFS 30K0.5

Operation Display

 Switch-on balance and during the selftest press .

 Use the numeric keys to enter password:
 Either input four times zero „0000“ as a standard

password, or input the user-defined password (input cf.
parameter „Pin“ chapter 13).



 When using as counting system, the bulk material

balance as well as the reference balance must be
adjusted. The adjustment process must be carried out on
both balances.

Select bulk material or reference balance via .
The appeared [] displays the current balance.

„Pin“

„Pin“ „----„

„tECH“ „LoCAL“



„tECH“ „rEmotE“

 Using

be used for linearization. The appeared [] displays the
current weighing unit.

62 CFS/CCS-BA-e-1422

„tECH“ „Unit“

 Acknowledge with .

( ), repeat adjustment process.

 Ensure that there are no objects on the weighing pan.
 Wait for stability display (indicator [] atop appears),

then press .

 The currently adjusted adjustment weight (e.g. 6 kg) will

be shown.
If applicable, change the indicated weight value with the
numeric keys.

 Carefully place the indicated weight value for adjustment

into the center of the weighing plate on display „LoAd“.

 Wait for stability display, then press .
 After the adjustment the balance will carry out a self-test.

Remove adjusting weight during selftest, balance will
return into weighing mode automatically.
In case of an adjustment error or incorrect adjusting
weight the display will show an error message

Display examples

model CFS 6K0.1

CFS/CCS-BA-e-1422 63

14.3 Model KERN CFS 50K-3

 Confirm input by .

 Acknowledge with .

Acknowledge with .

appears), then press .

 Wait for stability display, then press .

adjustment process.

Operation Display

 Switch-on balance and during the selftest press .

 Use the numeric keys to enter password:
 Either input four times zero „0000“ as a standard password,

or input the user-defined password (input cf. parameter
„Pin“ chapter 13).

 Select bulk material or reference balance via . The

appeared [] displays the current balance.
When using as counting system, the bulk material balance

as well as the reference balance must be adjusted. The
adjustment process must be carried out on both balances.

 Using select the weighing unit [kg or lb] which will be used

for linearization. The appeared [] displays the current
weighing unit.

„Pin“

„Pin“ „----„

„tECH“ „LoCAL“



„tECH“ „rEmotE“

„tECH“ „Unit“

 Ensure that there are no objects on the weighing pan.
 Wait for stability display (indicator [] atop

 Carefully place required adjustment weight (chapter 1) into

the center of the weighing plate on display „LoAd“.

 After the adjustment the balance will carry out a self-test.

Remove adjusting weight during selftest, balance will return
into weighing mode automatically.
In case of an adjustment error or incorrect adjusting weight
the display will show an error message ( ), repeat

64 CFS/CCS-BA-e-1422

15 Linearization

300 g

6 kg

15 kg

30 kg

50 kg

Linearity shows the greatest deviation of a weight display on the scale to the value
of the respective test weight according to plus and minus over the entire weighing
range.
If linearity deviation is discovered during a monitoring of test resources, you can
improve this by means of linearization.

• Carrying out linearization is restricted to specialist staff possessing well
acquainted with the workings of weighing scales.

• The adjustment weights to be used must be adapted to the weighing scale’s
specifications; see chapter 3.4 “testing instruments control”.

• Provide for required adjustment weights; cf. subsequent table 1 or table 2.

• Observe stable environmental conditions. Stabilisation requires a certain

warm-up time.

• After successful linearisation you will have to carry out calibration;
see chapter 3.4 “testing instruments control”.

Access to menu:

 Switch-on balance and during the selftest press .
 Use the numeric keys to input password „9999“ on display „Pin“

 Confirm input by .

Table 1: Required adjustment weights KERN CFS

Max 1. 2. 3. 4.

50 g 100 g 200 g 300 g

3 kg

0.5 kg 1 kg 2 kg 3 kg
2 kg 6 kg - ­5 kg 15 kg - -

10 kg 30 kg - ­15 kg 30 kg 50 kg -

CFS/CCS-BA-e-1422 65

Table 2: Required adjustment weights for interconnected bulk scales

load 1

(1/5 Max)

load 2

(1/3 Max)

load 3

(2/3 Max)

load 4

(max)

load 4

(max)

load 3

(2/3 Max

load 2

(1/3 Max)

load 1

(1/5 Max)

load 1

(1/3 Max)

load 2

(2/3 Max)

load 3

(max)

For counting systems with reference scale CFS 6K0.1, CFS 15K0.5 or
CFS 30k0.5, linearization of the bulk scales is impossible.

1. Counting systems with reference scales KERN CFS 300-3, CFS 3K-5

load 0

6 kg 15 kg 30 kg 60 kg 150 kg 300 kg 600 kg 1500 kg 3000 kg

1 kg 3 kg 5 kg 10 kg 30 kg 60 kg 100 kg 300 kg 600 kg

2 kg 5 kg 10 kg 20 kg 50 kg 100 kg 200 kg 500 kg 1000 kg

4 kg 10 kg 20 kg 40 kg 100 kg 200 kg 400 kg 1000 kg 2000 kg

6 kg 15 kg 30 kg 60 kg 150 kg 300 kg 600 kg 1500 kg 3000 kg

0 kg 0 kg 0 kg 0 kg 0 kg 0 kg 0 kg 0 k g 0 kg

6 kg 15 kg 30 kg 60 kg 150 kg 300 kg 600 kg 1500 kg 3000 kg

4 kg 10 kg 20 kg 40 kg 100 kg 200 kg 400 kg 1000 kg 2000 kg

2 kg 5 kg 10 kg 20 kg 50 kg 100 kg 200 kg 500 kg 1000 kg

1 kg 3 kg 6 kg 10 kg 30 kg 60 kg 100 kg 300 kg 600 kg

2. Counting systems with reference scale KERN CFS 50K-3

150 kg 300 kg 600 kg 1500 kg 3000 kg

50kg 100kg 200kg 500kg 1000kg

100kg 200kg 400kg 1000kg 2000kg

150kg 300kg 600kg 1500kg 3000kg

66 CFS/CCS-BA-e-1422

15.1 Models CFS 300-3, CFS 3K-5

linearized. Both scales must be linearized.

Acknowledge with .

Operation Display

 Switch-on balance and during the selftest press .

 Use the numeric keys to enter password „9999“:

Confirm input by .

 Select bulk material or reference balance via .

The appeared [] displays the current balance.
When using as counting system, the bulk material

balance as well as the reference balance must be

 If necessary, at balance zero display using

select the weighing unit [kg or lb], which shall be used for
linearization. The appeared [] displays the current
weighing unit.

„Pin“

„Pin“ „----„

„tECH“ „LoCAL“



„tECH“ „rEmotE“

„tECH“ „Unit“

 Ensure that there are no objects on the weighing pan.

Wait for stability display (indicator [] atop
expires), then press .

 Carefully place first adjustment weight into the center of

the weighing plate on display „LoAd 1“.
Wait for stability display, then press .

 Carefully place second adjustment weight into the center

of the weighing plate on display „LoAd 2“.
Wait for stability display, then press .

 When „LoAd 3“ is displayed, place the third adjustment

weight carefully in the centre of the weighing plate.
Wait for stability display, then press .

CFS/CCS-BA-e-1422 67

 Carefully place fourth adjustment weight into the center of

( ), repeat adjustment process.

the weighing plate on display „LoAd 4“.
Wait for stability display, then press .

 Ensure that no objects are on the weighing plate on

display „LoAd 0“.
Wait for stability display, then press .

 Carefully place fourth adjustment weight into the center of

the weighing plate once more on display „LoAd 4“.
Wait for stability display, then press .

 Carefully place third adjustment weight into the center

of the weighing plate once more on display „LoAd 3“.
Wait for stability display, then press .

 Carefully place second adjustment weight into the center

of the weighing plate once more on display „LoAd 2“.
Wait for stability display, then press .

 Carefully place first adjustment weight into the center of

the weighing plate once more on display „LoAd 1“.
Wait for stability display, then press .

 Ensure that no objects are on the weighing plate on

display „LoAd 0“.
Wait for stability display, then press .

 After the adjustment the balance will carry out a self-test.

The balance returns automatically into weighing mode.
In case of an adjustment error or incorrect adjusting
weight the display will show an error message

15.2 Model KERN CFS 50K-3 Operation Display

 Switch-on balance and during the selftest press .

68 CFS/CCS-BA-e-1422

„Pin“

 Acknowledge with .

current weighing unit. Acknowledge with .

( ), repeat adjustment process.

 Use the numeric keys to input password „9999“:

Confirm input by .

 Select bulk material or reference balance via .

The appeared [] displays the current balance.
When using as counting system, the bulk material

balance as well as the reference balance must be
adjusted. The adjustment process must be carried out
on both balances.

 Using select the weighing unit [kg or lb] which will

be used for linearization. The appeared [] displays the

 Ensure that there are no objects on the weighing pan.

Wait for stability display (indicator [] atop
appears), then press .

„Pin“ „----„

„tECH“ „LoCAL“



„tECH“ „rEmotE“

„tECH“ „Unit“

 Carefully place first adjustment weight into the center of

the weighing plate on display „LoAd 1“.
Wait for stability display, then press .

 Carefully place second adjustment weight into the

center of the weighing plate on display „LoAd 2“.
Wait for stability display, then press .

 When „LoAd 3“ is displayed, place the third adjustment

weight carefully in the centre of the weighing plate.
Wait for stability display, then press .

 After the adjustment the balance will carry out a self-

test. The balance returns automatically into weighing
mode. In case of an adjustment error or incorrect
adjusting weight the display will show an error message

CFS/CCS-BA-e-1422 69

16 Second balance interface

When using as counting system, the platform must be connected with a suitable
cable via the second-balance interface.

All models except for CFS 50K-3:

9 pin d-subminiature bushing of the
balance

Pin no.: Balance connection

Pin 1 or 2 EXC+ (5V)
Pin 4 or 5 EXC- (0)
Pin 7 SIG–
Pin 8 SIG+

Model CFS 50K-3:

Pin no.: Balance connection Connection platform

Pin 1 SIG+
Pin 2 SIG–

Interconnection of platform KERN KFP

see labelling of load cell

Pin 3 not connected
Pin 4 EXC–
Pin 5 EXC+

see labelling of load cell

70 CFS/CCS-BA-e-1422

17 RS 232C interface

The balance is typically equipped with a RS 232C interface. The weighing data can
be output depending on the setting in the menu either automatically or by pressing

or (in CFS 50K-3) via the interface.
This data exchange is asynchronous using ASCII - Code.
The following conditions must be met to provide successful communication
between the weighing balance and the printer.

• Use a suitable cable to connect the weighing balance to the interface of the
printer. Faultless operation requires an adequate KERN interface cable.

• Communication parameters (baud rate, bits and parity) of balance and
printer must match. Detailed description of the interface parameters see
chap. 12.2, Menu block " ".

17.1 Technical data

Connection 9 pin d-subminiature bushing

Baud rate
Parity

600/1200/2400/4800/9600

8 bits, no parity / 7 bits, even parity / 7 bits, odd parity

bold printed = factory setting

Pin 2 input
Pin 3 output
Pin 5 signal earth

CFS/CCS-BA-e-1422 71

17.2 Printer operation

Active balance, see chap. 7.3

User identification number (cf . chapter 12.2)

N 250.001 g

Net weight

1.17647 g/pcs

Average piece weight

212 pcs

Quantity

Active balance, see chap. 7.3

User identification number (cf . chapter 12.2)

N 1.20005 kg

Net weight

2.49991 g/pcs

Average piece weight

480 pcs

Quantity

17.2.1 Printout example KERN YKB-01N / model CFS 300-3

 Counting

S1
ID: 123456

17.2.2 Printout examples KERN YKB-01N / model CFS 3K-5

 Counting

S1
ID: 123456

72 CFS/CCS-BA-e-1422

 Totalization

S 1

Active balance, see chap. 7.3

ID: 123456

User identification number ( cf. chapter 12.2)

ABCDEF

Article name (cf. chapter 11)

N 1.15014 kg

Placed net weight

2.00011 g/Pcs

Average piece weight

575 Pcs

Quantity placed on balance

No. 1

Number weighing processes

C 1.15014 kg

Total weight

C 575 pcs

Total number of pieces

S 1

Active balance, see chap. 7.3

ID: 123456

User identification number (cf . chapter 12.2)

ABCDEF

Article name (cf. chapter 11)

N 0.90001 kg

Placed net weight

2.00011 g/Pcs

Average piece weight

450 Pcs

Quantity placed on balance

No. 2

Number weighing processes

C 2.05015 kg

Total weight

C 1025 pcs

Total number of pieces

S 1

Active balance, see chap. 7.3

No. 2

Number weighing processes

C 2.05015 kg

Total weight

C 1025 pcs

Total number of pieces

1. Weighing

C

2. Weighing

C

Total

C

CFS/CCS-BA-e-1422 73

17.2.3 Printout examples

S 1

Active balance, see chap. 7.3

ID: 123456

User identification number (cf . chapter 12.2)

ABCDEF

Article name (cf. chapter 11)

N 5.0002 kg

Placed net weight

10 g/Pcs

Average piece weight

500 Pcs

Quantity placed on balance

No. 1

Number weighing processes

C 5.0002 kg

Total weight

C 500 pcs

Total number of pieces

S 1

Active balance, see chap. 7.3

ID: 123456

User identification number (cf . chapter 12.2)

ABCDEF

Article name (cf. chapter 11)

N 2.0002 kg

Placed net weight

10 g/Pcs

Average piece weight

200 Pcs

Quantity placed on balance

No. 2

Number weighing processes

C 7.0004 kg

Total weight

C 700 pcs

Total number of pieces

S 1

Active balance, see chap. 7.3

No. 2

Number weighing processes

C 7.0004 kg

Total weight

C 700 pcs

Total number of pieces

KERN YKB-01N / CFS 6K0.1, CFS 15K0.2, CFS 30K0.5

 Summing up /menu adjustment „F2 PrtForm 1 (cf. chapter12.2)

1. Weighing

C

2. Weighing

C

Total

C

74 CFS/CCS-BA-e-1422

 Summing up /menu adjustment „F2 PrtForm 2 (cf. chapter12.2)

S 1

Active balance, see chap. 7.3

ID: 123456

User identification number (cf. chapter 12.2)

ABCDEF

Article name (cf. chapter 11)

N 2.5003 kg

Placed net weight

G 3.0000 kg

Gross weight put on

T 0.4997 kg

Tare weight

10 g/Pcs

Average piece weight

250 Pcs

Quantity placed on balance

No. 1

Number weighing processes

C 2.5003 kg

Total weight

C 250 pcs

Total number of pieces

S 1

Active balance, see chap. 7.3

ID: 123456

User identification number (cf. chapter 12.2)

ABCDEF

Article name (cf. chapter 11)

N 5.5003 kg

Placed net weight

G 6.0000 kg

Gross weight put on

T 0.4997 kg

Tare weight

10 g/Pcs

Average piece weight

550 Pcs

Quantity placed on balance

No. 2

Number weighing processes

C 8.0006 kg

Total weight

C 800 pcs

Total number of pieces

S 1

Active balance, see chap. 7.3

No. 2

Number weighing processes

C 8.0006 kg

Total weight

C 800 pcs

Total number of pieces

1. Weighing

C

2. Weighing

C

Total

C

CFS/CCS-BA-e-1422 75

 Summing up /menu adjustment „F2 PrtForm 3 (cf. chapter12.2)

S 1

Active balance, see chap. 7.3

ID: 123456

User identification number (cf. chapter 12.2)

ABCDEF

Article name (cf. chapter 11)

N 2.5002 kg

Placed net weight

G 2.9999 kg

Gross weight put on

T 0.4997 kg

Tare weight

10 g/Pcs

Average piece weight

250 Pcs

Quantity placed on balance

HI 100 PCS

Upper tolerance limit, see chap. 9.2

LO 90 PCS

Lower tolerance limit, see chap. 9.2

---------HI----------

Target number of pieces exceeding the given
tolerance

No. 1

Number weighing processes

C 2.5002 kg

Total weight

C 250 pcs

Total number of pieces

S 1

Active balance, see chap. 7.3

ID: 123456

User identification number (cf . chapter 12.2)

ABCDEF

Article name (cf. chapter 11)

N 0.5002 kg

Placed net weight

G 0.9999 kg

Gross weight put on

T 0.4997 kg

Tare weight

10 g/Pcs

Average piece weight

50 Pcs

Quantity placed on balance

HI 100 PCS

Upper tolerance limit, see chap. 9.2

LO 90 PCS

Lower tolerance limit, see chap. 9.2

---------LO----------

Target number of pieces below the given
tolerance

No. 2

Number weighing processes

C 3.0004 kg

Total weight

C 300 pcs

Total number of pieces

1. Weighing

C

2. Weighing

C

76 CFS/CCS-BA-e-1422

3. Weighing

S 1

Active balance, see chap. 7.3

ID: 123456

User identification number (cf . chapter 12.2)

ABCDEF

Article name (cf. chapter 11)

N 1.0002 kg

Placed net weight

G 1.4999 kg

Gross weight put on

T 0.4997 kg

Tare weight

10 g/Pcs

Average piece weight

100 Pcs

Quantity placed on balance

HI 100 PCS

Upper tolerance limit, see chap. 9.2

LO 90 PCS

Lower tolerance limit, see chap. 9.2

---------OK----------

Target number of pieces within the given tolerance

No. 3

Number weighing processes

C 4.0006 kg

Total weight

C 400 pcs

Total number of pieces

S 1

Active balance, s ee chap. 7.3

No. 3

Number weighing processes

C 4.0006 kg

Total weight

C 400 pcs

Total number of pieces

C

Total

C

CFS/CCS-BA-e-1422 77

17.2.4 Printout examples KERN YKB-01N / model CFS 50K-3

LOCAL SCALE

Active balance, see chap. 7.3

ID: 123456

User identification number (cf . chapter 12.2)

ABCDEFGHIJKL

Article name (cf. chapter 11)

6.500 kg NET

Placed net weight

100 g U. W.

Average piece weight

65 PCS

Quantity placed on balance

6.500 kg NET

Total weight

65 TPC

Total number of pieces

1 NO

Number weighing processes

LOCAL SCALE

Active balance, see chap. 7.3

ID: 123456

User identification number (cf . chapter 12.2)

ABCDEFGHIJKL

Article name (cf. chapter 11)

14.502 kg NET

Placed net weight

100 g U. W.

Average piece weight

145 PCS

Quantity placed on balance

21.002 kg NET

Total weight

210 TPC

Total number of pieces

2 NO

Number weighing processes

LOCAL SCALE

Active balance, see chap. 7.3

21.002 kg NET

Total weight

210 TPC

Total number of pieces

2 NO

Number weighing processes

 Totalization

1. Weighing

TOTAL

2. Weighing

TOTAL

Total

TOTAL

78 CFS/CCS-BA-e-1422

17.3 Remote control instructions

17.3.1 All models except for KERN CFS 50K-3

All inputs finish with <CR><LF> (carriage return / line feed).
At wrong inputs the command will be preceded by "ER", e.g. order "NN<CR><LF>",
error message "ER NN<CR><LF>".

17.3.2 Control commands

PLUxx Call article from data storage
T Tare placed weighing vessel
T123.456 Use the numeric keys to input tare value e.g. 123.456
Z Zeroing
P Printing
M+ Add and print weighing data in the summation memory
MR Call data from sum storage
MC Delete total added memory
U123.456 Use the numeric keys to input the average article weight

123.456 [g] or [lb].

S123 Define average article weight via weighing.

Function identical to key.
SL Switch over to reference balance
SR Switch over to bulk scales

17.3.3 Printing commands

\L Selection reference or bulk material balance
\I User identification number
\S Balance identification number
\N Net weight
\G Gross weight
\U Average piece weight
T Tare value
\P Counting
\C Total number of pieces
\W Total weight
\M Number of summing processes
\B Insert space line

CFS/CCS-BA-e-1422 79

17.3.4 Model CFS 50K-3

P

Printing

SUID

xxxxxx

<CR>

no more than 6 characters

SSID

xxxxxx

<CR>

no more than 6 characters

SSID

xx,

xxxxxxxxxxxx

<CR>

comma

Function

Command

1.
Input tare value e.g. 500 g

T0.500<CR>

Where no tare value is needed, input zero

T0<CR>

2.

Average piece weight
e.g. enter 12.3456 g/ piece

U12.3456<CR>

3.

Storage place e.g. 1 (PLU01) followed by the
article name, e.g. M4 screws

SPLU01,M4screws<CR>

Do not finish inputs with <CR><LF> (carriage return / line feed).

T Taring

Z Zeroing

17.3.5 User identification, scale identification, store article name

User identification number

Scale identification number

Storage place
2 characters +

Article name
No more than 12 characters

Unavailable in model CFS 50K-3

17.3.6 Register / call article via RS232 Register article:

Call article:

Command „PLUxx <CR>„, e.g. „PLU01“:
The stored tare value, e.g. 500 g, the average piece weight, e.g. 12.3456 g and the
article name, e.g. „M4 screws“, will be called and displayed.

Unavailable in model CFS 50K-3

80 CFS/CCS-BA-e-1422

17.4 I/O-function

Pin 2

RXD

Pin 3

TXD

Pin 5

GND

Pin 1

VB

Pin 5

GND

Pin 6

OK

Pin 7

LOW

Pin 8

HI

Pin 9

BEEP

U

High

U

Low

J1

J2

OUT4

OUT3

OUT2

OUT1

COM
GND

IN4

IN3

IN2

IN1

VB

COM

green
red

yellow

beep

AC power

220VA

Signal light

RS-232

Fig.: 9 pin d-subminiature

bushing

RS232

Pin 4 VCC 5V

Shift point

Connection example with lights CFS-A03

OH

OL

-Level Output Voltage 2.4 V

-Level Output Voltage

0.4 V

CFS/CCS-BA-e-1422 81

18 Servicing, maintenance, disposal

Before any maintenance, cleaning and repair work disconnect the
appliance from the operating voltage.

18.1 Cleaning

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. Polish with a dry soft cloth.
Loose residue sample/powder can be removed carefully with a brush or manual
vacuum cleaner.

Spilled weighing goods m ust be removed immediately.

18.2 Servicing, maintenance

 The appliance may only be opened by trained service technicians who are

authorized by KERN.

 Before opening, disconnect from power supply.

18.3 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.

82 CFS/CCS-BA-e-1422

19 Instant help

The displayed weight does

The displayed weight is

The weighing result is

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

not glow.

permanently changing

obviously incorrect

• The balance is not switched on.

• The mains supply connection has been interrupted

(mains cable not plugged in/faulty).

• Power supply interrupted.

• 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.

CFS/CCS-BA-e-1422 83

• The balance is on an uneven surface.

• Great fluctuations in temperature.

• Warm-up time was ignored.

• Electromagnetic fields / static charging (choose

different location/switch off interfering device if
possible)

19.1 Error messages

Error message Description Possible reasons/

solution

Err 4

Err 5

Err 6

Err 19

Zeroing range exceeded
due to switching-on balance

or pressing (normally
4% max)

Keyboard error

Value outside the A/D
changer range

Zero point displaced

• Object on the weighing
plate

• Overload when zeroing

• Inappropriate

adjustment

• Damaged weighing cell

• Damaged electronics

• Unpurposeful

operation of the scale

• Weighing plate not
installed

• Damaged weighing cell

• Damaged electronics

• Remedy:

Adjust / linearize

FAIL H / FAIL L

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

Adjustment error

• Inappropriate
adjustment

84 CFS/CCS-BA-e-1422

20 Declaration of confor m ity

KERN & Sohn GmbH

D-72322 Balingen-Frommern

E-Mail: [e-mail]

Phone: 0049-[0]7433- 9933-0

Internet: www.kern-sohn.de

D

Konformitäts­erklärung

Wir erk lären hiermit, dass das Produkt, auf das sich diese Erk lärung bezieht,
mit den nachstehenden Normen übereinstimmt.

EN

Declaration of
conformity

We hereby declare that the product to which this declaration refers c onforms
to the following standards.

CZ

Prohlášení o
shode

Tímto prohlašujem e, že výrobek, kterého se toto prohlášení týká, je v souladu
s níže uvedenými normami.

E

Declaración de
conformidad

Manifestamos en la presente que el producto al que se refiere esta
declaración está de acuerdo con las normas siguientes

F

Déclaration de
conformité

Nous déclarons avec cela responsabilité que le produit, auquel se rapport e la
présente déclaration, est conforme aux normes citées ci-après.

I

Dichiarazione di
conformitá

Dichiariamo con ciò che il prodotto al quale la presente dichiarazione si
riferisce è conforme alle norme di seguito citate.

NL

Conformiteit­verklaring

Wij verklaren hiermede dat het product, waarop deze verklaring betrekking
heeft, met de hierna vermelde normen overeenstemt.

P

Declaração de
conformidade

Declaramos por meio da presente que o produto no qual se refere esta
declaração, corresponde às normas seguintes.

PL

Deklaracja

zgodności

Niniejszym oświadczamy, że produkt, którego niniejsze oświadczenie dotyczy,

jest zgodny z poniższymi normami.

RUS

Заявление о

соответствии

Мы заявляем, что продукт, к которому относится данная декларация,
соответствует перечисленным ниже нормам.

EU Directive

Standards

2004/108/EC

EN55022: 2006 A1:2007
EN55024: 1998+A1:2001+A2:2003

2006/95/EC

EN 60950-1:2006
EN 60065:2002+A1:2006

Signature

Date

24.02.2014

Ort der Ausstellung

Place of issue

72336 Balingen

Albert Sauter
KERN & Sohn GmbH

Manager

Managing director

KERN & Sohn GmbH, Ziegelei 1, D-72336 Balingen, Tel. +49-[0]7433/9933-0
Fax +49-[0]7433/9933-149, E-Mail: [e-mail], Internet: www.kern-sohn.com

Postbox 4052

Fax: 0049-[0]7433-9933-149

Declaration of conformity

EC-Konformitätserklärung EC-Declarat ion of -Conformity

Déclaration de conformité EC-Declaración de Confor m i dad

EC­EC-Dichiarazione di conformità EC-Conformiteitverklaring
EC- Declaração de conformidade EC- Prohlášení o shode
EC-Deklaracja zgodności EC-Заявление о соответствии

Electronic Balan ce: KERN CFS

EN61000-3-3:1995+A1:2001+A2:2005

Date

CFS/CCS-BA-e-1422 85

Signatur