KERN & SOHN CFS 50K-3 User Manual
KERN & Sohn GmbH
Ziegelei 1
E-Mail: info@kern-sohn.com
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 oFFUnit kg / lb).
The indicator [] shows the active unit.
26 CFS/CCS-BA-e-1422
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