KERN & Sohn GmbH
Ziegelei 1
E-Mail: info@kern-sohn.com
Phone: +49-[0]7433- 9933-0
Internet: www.kern-sohn.com
Operating manual
Compact balance
KERN FXN
Version 1.0
11/2014
GB
D-72336 Balingen
Fax: +49-[0]7433-9933-149
FXN-N-BA-e-1410
KERN FXN-N
Compact balance
GB
Version 1.0 11/2014
Operating manual
Contents
1 Technical data ............................................................................................ 3
1.1 Dimensions............................................................................................................................. 4
2 Appliance overview .................................................................................... 5
2.1 Overview of display ................................................................................................................ 5
2.1.1 Not verifiable models .............................................................................................................. 5
2.2 Keyboard overview ................................................................................................................. 6
3 Basic Information (Gen eral) ...................................................................... 7
3.1 Proper use .............................................................................................................................. 7
3.2 Improper Use ......................................................................................................................... 7
3.3 Warranty ................................................................................................................................. 7
3.4 Monitoring of Test Resources ................................................................................................ 7
4 Basic Safety Precauti o ns .......................................................................... 8
4.1 Pay attention to the instructions in the Operation Manual ..................................................... 8
4.2 Personnel training .................................................................................................................. 8
5 Transport and storage ............................................................................... 8
5.1 Testing upon acceptance ....................................................................................................... 8
5.2 Packaging / return transport ................................................................................................... 8
6 Unpacking, Setup and Commissioning .................................................... 9
6.1 Installation Site, Location of Use ............................................................................................ 9
6.2 Unpacking and placing ......................................................................................................... 10
6.2.1 Scope of delivery .................................................................................................................. 11
6.3 Battery operation .................................................................................................................. 11
6.4 Initial Commissioning ........................................................................................................... 13
7 Adjustment ............................................................................................... 13
7.1 Adjusting............................................................................................................................... 13
7.1.1 Adjustment ........................................................................................................................... 14
8 Operation .................................................................................................. 15
8.1 Weighing .............................................................................................................................. 15
8.2 Taring ................................................................................................................................... 15
8.3 Background illumination ....................................................................................................... 16
9 The menu .................................................................................................. 17
9.1 Navigation in the menu ........................................................................................................ 17
9.2 Menu overview ..................................................................................................................... 18
9.3 Set auto-OFF function .......................................................................................................... 19
10 Error messages ........................................................................................ 20
11 Instant help ............................................................................................... 21
12 Servicing, maintenance, disposal ........................................................... 22
12.1 Cleaning ............................................................................................................................... 22
12.2 Servicing, maintenance ........................................................................................................ 22
12.3 Disposal................................................................................................................................ 22
2 FXN-N-BA-e-1410
1 Tech nical data
KERN
Weighing range (max) 3 kg 6 kg 15 kg 30 kg
Readability (d) 1 g 2 g 5 g 10 g
Reproducibility 1 g 2 g 5 g 10 g
Linearity 2 g 4 g 10 g 20 g
Recommended adjustment
weight, not added (class)
Stabilization time (typical) 2 sec.
Units g, kg, lb, oz,
Warm-up time 10 min.
Electric Supply Battery operation: 6 x 1.5V Size D
Auto-Off (rechargeable
battery)
Display type LCD, digit height 25 mm
FXN
3K -3
3 kg
(M3)
FXN
6K -3
6 kg
(M3)
15 min., 5 min., 3 min., off
FXN
10K -3
15 kg
(M3)
FXN
30K -2
30 kg
(M3)
Operating temperature 0° C …. + 40° C
Humidity of air 25 % - 95 % (non-condensing)
Dimensions of weighing
plate
(Stainless steel) (mm)
Casing dimensions 240 x 280 x 120
Dimensions, completely
assembled (mm)
Weight kg (net) 4.0
IP protection IP68 to DIN 60529
236 x 195
240 x 280 x 120
FXN-N-BA-e-1410 3
1.1 Dimensions
4 FXN-N-BA-e-1410
2 Appliance overview
2.1 Overview of displa y
2.1.1 Not verifiable models
Display Designation Description
Zeroing display
Should the balance not display exactly zero
despite empty scale pan, press the
button. The balance will be set to zero after a
short standby time.
Stability display Scales are in a steady state
Net weight display Net weight will be displayed
Capacity display
Battery
Display Weighing unit kg Displayed weight in kg
Full battery capacity
FXN-N-BA-e-1410 5
Switch-over gross
2.2 Keyboard overview
Button Designation Function
ON-button, zero
button
Switch-on, set to zero
OFF-button Switching Off
TARE button Tare balance
Unit button Switch-over units
Switch-over button
weight / net weight
6 FXN-N-BA-e-1410
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
pan. 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“. (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,
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 faul ts and dest r ucti on o f 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
3.4 Monitoring of Test Resource s
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.
FXN-N-BA-e-1410 7
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