KERN & SOHN SFB 300K-1LM User Manual
KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
email: info@kern-sohn.com
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating instructions
Stainless steel scale
KERN SFB
Version 2.4
12/2013
GB
SFB-BA-e-1324
2
GB
KERN SFB
Version 2.4 12/2013
Operating instructions stainless steel scale
Table of Contents
1 Technical Data ................................................................................................... 4
2 Appliance overview ......................................................................................... 10
2.1 Keyboard overview ...................................................................................................11
2.1.1 Numeric input via navigation keys ................................................................................... 12
2.2 Overview of displays .................................................................................................12
3 Basic Information (General) ........................................................................... 13
3.1 Proper use ................................................................................................................13
3.2 Improper Use ............................................................................................................13
3.3 Warranty ...................................................................................................................13
3.4 Monitoring of Test Resources ...................................................................................14
4 Basic Safety Precautions ................................................................................ 14
4.1 Pay attention to the instructions in the Operation Manual .........................................14
4.2 Personnel training ................................ ................................................................ .....14
5 Transportation & Storage ............................................................................... 14
5.1 Testing upon acceptance .......................................................................................... 14
5.2 Packaging / return transport .....................................................................................14
6 Unpacking and implantation .......................................................................... 15
6.1 Installation Site, Location of Use ...............................................................................15
6.2 Unpacking/implantation ............................................................................................15
6.2.1 Tripod ............................................................................................................................... 17
6.3 Mains connection ................................................................................................ ......20
6.4 Rechargeable battery operation ................................................................................20
6.5 Protection type IP65 .................................................................................................20
6.6 Adjustment................................................................................................................21
6.6.1 Verified models ................................................................................................................ 22
6.6.2 Non verifiable models ...................................................................................................... 24
6.7 Linearization .............................................................................................................25
6.7.1 Verified models ................................................................................................................ 25
6.7.2 Non-verified models ......................................................................................................... 26
6.8 Verification ................................................................................................................27
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7 Operation ......................................................................................................... 28
7.1 Start-up .....................................................................................................................28
7.2 Switching Off ............................................................................................................28
7.3 Zeroing .....................................................................................................................28
7.4 Simple weighing ........................................................................................................28
7.5 Switch-over weighing unit (only not verifiable models) ..............................................29
7.6 Weighing with tare ....................................................................................................30
7.7 Weighing with tolerance range .................................................................................30
7.7.1 Tolerance check for target weight .................................................................................... 31
7.7.2 Tolerance check for target quantity.................................................................................. 33
7.8 Manual totalizing .......................................................................................................35
7.9 Automatic adding-up .................................................................................................37
7.10 Parts counting ...........................................................................................................38
7.11 Animal weighing ........................................................................................................39
7.12 Lock keyboard ..........................................................................................................40
7.13 Display background illumination ................................................................................40
7.14 Automatic switch-off function “AUTO OFF“ ..................................................................41
8 Menu ................................................................................................................. 42
8.1 Overview non verifiable models ................................................................................43
8.2 Overview verified models ..........................................................................................45
9 Service, maintenance, disposal ..................................................................... 48
9.1 Cleaning ...................................................................................................................48
9.2 Service, maintenance ...............................................................................................48
9.3 Disposal ....................................................................................................................48
9.4 Error messages ........................................................................................................49
10 Data output RS 232C (optional) .................................................................. 50
10.1 Technical Data ..........................................................................................................50
10.2 Technical data ..........................................................................................................50
10.3 Printer mode .............................................................................................................50
10.4 Output log (continuous output) ..................................................................................51
10.5 Remote control instructions ......................................................................................51
11 Instant help ................................................................................................... 52
12 Declaration of Conformity ........................................................................... 53
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1 Technical Data
KERN
SFB 10K1HIP
SFB 15K5HIPM
SFB 20K2HIP
Readability (d)
1 g
5 g
2 g
Weighing range (max)
10 kg
15 kg
20 kg
Minimum load (Min)
-
100 g
-
Verification value (e)
-
5 g
-
Verification class
-
III
-
Reproducibility
1 g
5 g
2 g
Linearity
± 1 g
± 5 g
± 2 g
Recommended
adjustment weight, not
added (class)
10 kg
(M1)
15 kg
(M1)
20 kg
(M1)
Warm-up time
30 minutes
10 minutes
30 minutes
Stabilization time (typical)
2 sec.
Weighing unit
kg
Auto Off
Available options
Ambient temperature
-10°C – 40°C
Moist environment
0 % - 95 % (non-condensing)
Electric Supply
Input voltage 110 V – 230 V AC
Power pack secondary voltage 12 V, 500 mA
Rechargeable battery
(Standard)
Service life background light on for 40 h
Service life background light off 80 h
Charge time 12 h
Dimensions display unit
(B x D x H) mm
266 x 165 x 96
Weighing surface mm
300 x 240
IP protection
IP 65 (Only during operation on battery power)
Interface
RS 232 optional
Tripod
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KERN
SFB
30K10HIPM
SFB
50K5HIP
SFB
50K5LHIP
SFB
50K-3XL
Readability (d)
10 g
5 g
5 g
5 g
Weighing range (max)
30 kg
50 kg
50 kg
50 kg
Minimum load (Min)
200 g
- - -
Verification value (e)
10 g - -
-
Verification class
III - -
-
Reproducibility
10 g
5 g
5 g
5 g
Linearity
± 10 g
± 5 g
± 5 g
± 10 g
Recommended
adjustment weight, not
added (class)
30 kg
(M1)
50 kg
(M1)
50 kg
(M1)
50 kg
(M1)
Warm-up time
10 minutes
30 minutes
30 minutes
30 minutes
Stabilization time (typical)
2 sec.
Weighing unit
kg
Auto Off
Available options
Ambient temperature
-10°C – 40°C
Moist environment
0 % - 95 % (non-condensing)
Electric Supply
Input voltage 110 V – 230 V AC
Power pack secondary voltage 12 V, 500 mA
Rechargeable battery
(Standard)
Service life background light on for 40 h
Service life background light off 80 h
Charge time 12 h
Dimensions display unit
(B x D x H) mm
266 x 165 x 96
Weighing surface mm
300 x 240
300 x 240
400 x 300
500 x 400
IP protection
IP 65 (Only during operation on battery power)
Interface optional
RS232
Tripod
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KERN
SFB
60K20HIPM
SFB
60K20LHIPM
SFB
60K-2XLM
Readability (d)
20 g
20 g
20 g
Weighing range (max)
60 kg
60 kg
60 kg
Minimum load (Min)
400 g
400 g
400 g
Verification value (e)
20 g
20 g
20 g
Verification class
III
III
III
Reproducibility
20 g
20 g
20 g
Linearity
± 20 g
± 20 g
± 20 g
Recommended
adjustment weight, not
added (class)
60 kg
(M1)
60 kg
(M1)
60 kg
(M1)
Warm-up time
10 minutes
10 minutes
10 minutes
Stabilization time (typical)
2 sec.
Weighing unit
kg
Auto Off
Available options
Ambient temperature
-10°C – 40°C
Moist environment
0 % - 95 % (non-condensing)
Electric Supply
Input voltage 110 V – 230 V, AC
Power pack secondary voltage 12 V, 500 mA
Rechargeable battery
(Standard)
Service life background light on for 40 h
Service life background light off 80 h
Charge time 8 h
Dimensions display unit
(B x D x H) mm
266 x 165 x 96
Weighing surface mm
300 x 240
400 x 300
500 x 400
IP protection
IP 65 (Only during operation on battery power)
Interface optional
RS232
Tripod
optional
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KERN
SFB
100K10HIP
SFB
100K-2L
SFB
100K-2HM
SFB
100K-2LM
Readability (d)
10 g
10 g
50 g
50 g
Weighing range (max)
100 kg
100 kg
150 kg
150 kg
Minimum load (Min)
- - 1 kg
1 kg
Verification value (e)
- - 50 g
50 g
Verification class
- - III
III
Reproducibility
10 g
10 g
50 g
50 g
Linearity
± 10 g
± 20 g
± 50 g
± 50 g
Recommended
adjustment weight, not
added (class)
100 kg
(M1)
100 kg
(M1)
120 kg
(M1)
150 kg
(M1)
Warm-up time
30 minutes
30 minutes
10 minutes
10 minutes
Stabilization time (typical)
2 sec.
Weighing unit
kg
Auto Off
Available options
Ambient temperature
-10°C – 40°C
Moist environment
0 % - 95 % (non-condensing)
Electric Supply
Input voltage 110 V – 230 V, AC
Power pack secondary voltage 12 V, 500 mA
Rechargeable battery
(Standard)
Service life background light on for 40 h
Service life background light off 80 h
Charge time 12 h
Dimensions display unit
(B x D x H) mm
266 x 165 x 96
Weighing surface mm
400 x 300
500 x 400
400 x 300
500 x 400
IP protection
IP 65 (Only during operation on battery power)
Interface optional
RS232
Tripod optional
optional
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KERN
SFB
100K-2XL
SFB
100K-2XLM
SFB
120K50HIPM
Readability (d)
10 g
50 g
50 g
Weighing range (max)
100 kg
150 kg
120 kg
Minimum load (Min)
-
1 kg
1 kg
Verification value (e)
-
50 g
50 g
Verification class
-
III
III
Reproducibility
10 g
50 g
50 g
Linearity
± 20 g
± 50 g
± 50 g
Recommended
adjustment weight, not
added (class)
100 kg
(M1)
150 kg
(M1)
120 kg
(M1)
Warm-up time
30 minutes
10 minutes
10 minutes
Stabilization time (typical)
2 sec.
Weighing unit
kg
Auto Off
Available options
Ambient temperature
-10°C – 40°C
Moist environment
0 % - 95 % (non-condensing)
Electric Supply
Input voltage 110 V – 230 V, AC
Power pack secondary voltage 12 V, 500 mA
Rechargeable battery
(Standard)
Service life background light on for 40 h
Service life background light off 80 h
Charge time 12 h
Dimensions display unit
(B x D x H) mm
266 x 165 x 96
Weighing surface mm
650 x 500
400 x 300
IP protection
IP 65 (Only during operation on battery power)
Interface optional
RS232
Tripod
optional
optional
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KERN
SFB
200K-2XL
SFB
300K-1LM
Readability (d)
20 g
100 g
Weighing range (max)
200 kg
300 kg
Minimum load (Min)
-
2 kg
Verification value (e)
-
100 g
Verification class
-
III
Reproducibility
20 g
100 g
Linearity
± 40 g
± 100 g
Recommended
adjustment weight, not
added (class)
200 kg
(M1)
300 kg
(M1)
Warm-up time
30 minutes
10 minutes
Stabilization time (typical)
2 sec.
Weighing unit
kg
Auto Off
Available options
Ambient temperature
-10°C – 40°C
Moist environment
0 % - 95 % (non-condensing)
Electric Supply
Input voltage 110 V – 230 V, AC
Power pack secondary voltage 12 V, 500 mA
Rechargeable battery
(Standard)
Service life background light on for 40 h
Service life background light off 80 h
Charge time 12 h
Dimensions display unit
(B x D x H) mm
266 x 165 x 96
Weighing surface mm
650 x 500
IP protection
IP 65 (Only during operation on battery power)
Interface optional
RS232
Tripod
optional
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2 Appliance overview
1. Battery status display
2. Keyboard
3. Weight display
4. Tolerance tag, see chap. 7.7
5. Weighing unit
6. Levelling screw
7. Spirit level (underneath weighing platform)
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2.1 Keyboard overview
Button
Function
Turn on/off
Zeroing
Navigation key
Confirm entry
Taring
Navigation key
At numeric input increase flashing digit
Scroll forward in menu
Display sum total
Navigation key
Digit selection to the right
Add weighing value in summation memory
Navigation key
Digit selection to the left
Calculate weighing data via interface
C
Delete
Switch-over gross weight net weight
ESC
Back to menu/weighing mode
Activate animal weighing function
Activate weighing with tolerance limits
Delete total added memory
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2.1.1 Numeric input via navigation keys
Press current setting appears. The first digit is flashing and can be
changed.
If the first digit is not to be changed, press and the second digit will start
flashing. Each time you press , the display unit jumps to the subsequent
digit, returning to the first digit after the last digit has been pressed.
To change the selected (flashing) digit, press repeatedly until the desired
value appears. Then select by using additional digits and change these by using
Finish entry with .
Display
Significance
Rechargeable battery very low
STABLE
Stability display
ZERO
Zero display
GROSS
Gross weight
NET
Net weight
AUTO
Automatic add-up enabled
Kg
Weighing unit
M+
Adding
LED
+ / / -
Indicators for weighing with tolerance limits
2.2 Overview of displays
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3 Basic Information (General)
3.1 Proper use
The balance you purchased is intended to determine the weighing value of material
to be weighed. It is intended to be used as a “non-automatic balance”, i.e. the
material to be weighed is manually and carefully placed in the centre of the weighing
plate. As soon as a stable weighing value is reached the weighing value can be read.
3.2 Improper Use
Do not use balance 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“ in the balance. (Example: Slowly
draining fluids from a container on the balance.)
Do not leave permanent load on the weighing plate. This may damage the
measuring system.
Impacts and overloading exceeding the stated maximum load (max) of the weighing
plate, minus a possibly existing tare load, must be strictly avoided. Balance may be
damage by this.
Never operate balance in explosive environment. The serial version is not explosion
protected.
The structure of the balance may not be modified. This may lead to incorrect
weighing results, safety-related faults and destruction of the balance.
The balance may only be used according to the described conditions. Other areas of
use must be released by KERN in writing.
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
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3.4 Monitoring of Test Resources
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 glass wind screen, weighing
platform, power unit etc. against shifting and damage.
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.
4.2 Personnel training
The appliance may only be operated and maintained by trained personnel.
5 Transportation & Storage
5.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
5.2 Packaging / return transport
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6 Unpacking and implantation
Balance, see chap. 2
Transit Securing
Mains adapter
Rechargeable battery
Instruction Manual
6.1 Installation Site, Location of Use
The balances are designed in a way that reliable weighing results are achieved in
common conditions of use.
You will work accurately and fast, if you select the right location for your balance.
On the installation site observe the following:
Place the balance on a firm, level surface;
Avoid extreme heat as well as temperature fluctuation caused by installing
next to a radiator or in the direct sunlight;
Protect the balance against direct draughts due to open windows and doors;
Avoid jarring during weighing;
Protect the balance against high humidity, vapors and dust;
Do not expose the balance to strong humidity for extended periods. 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.
Being of protection type IP 67 as per DIN EN 60529, the weighing scale is
suitable for short-term use in wet conditions.
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/implantation
Scope of delivery / serial accessories:
Carefully remove the balance from the packaging, remove plastic cover, assemble
the tripod and the display unit (see chap. 6.2.1) and setup balance at the intended
workstation.
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Remove the transportation lock:
As the air bubble is located under
the weighing plate, remove it.
Level balance with foot screws until
the air bubble of the water balance
is in the prescribed circle.
1. Models platform size 300 x 240 mm
Remove the marked screws.
2. Models platform size 400 x 300 mm
Remove the screw marked by the label .
Attention: The sealed screws must not be unscrewed.
Accurate weighing results require a weighing bridge with perfect horizontal
alignment. During initial installation and after each change of work area it is
necessary to level the weighing bridge.
SFB-BA-e-1324
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