Kern FOB 1.5K0.5 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
Stainless steel table scales
KERN FOB
Type FOB-S
Version 2.3
2020-07
Type FOB NS
Type TFOB-NL-A
Type TFOB-LM-A
Type TFOB-A
D-72336 Balingen
Fax: +49-[0]7433-9933-149
GB
FOB-BA-e-2023
KERN FOB
Stainless steel table scales
Contents
1 Technical data ................................................................................................ 4
2 Declaration of conformity ........................................................................... 10
3 Appliance overview ..................................................................................... 11
3.1 Components ............................................................................................................................. 11
3.2 Keyboard overview ................................................................................................................... 13
3.3 Overview of display .................................................................................................................. 15
4 Basic Information (Gen eral) ........................................................................ 18
4.1 Proper use ................................................................................................................................ 18
4.2 Improper Use ............................................................................................................................ 18
4.3 Warranty ................................................................................................................................... 18
4.4 Monitoring of Test Resources................................................................................................... 19
5 Basic Safety Precauti ons ............................................................................ 19
5.1 Pay attention to the instructions in the Operation Manual ........................................................ 19
5.2 Personnel training ..................................................................................................................... 19
6 Transport and storage ................................................................................. 19
6.1 Testing upon acceptance ......................................................................................................... 19
6.2 Packaging / return transport ..................................................................................................... 19
7 Unpacking, Setup and Commissioning ..................................................... 20
7.1 Installation Site, Location of Use .............................................................................................. 20
7.2 Unpacking ................................................................................................................................. 20
7.2.1 Placing ...................................................................................................................................... 21
7.2.2 Levelling (FOB and FOB-LM models only) ............................................................................... 21
7.2.3 Scope of delivery ...................................................................................................................... 21
7.3 Mains connection ...................................................................................................................... 21
7.3.1 Assembly or disassembly of the protection hood ..................................................................... 22
7.4 Battery operation ...................................................................................................................... 23
7.5 Initial Commissioning ................................................................................................................ 24
7.6 Adjustment ................................................................................................................................ 24
8 Verification (FOB-LM models only) ............................................................ 28
9 Operation ...................................................................................................... 29
9.1 Simple weighing ....................................................................................................................... 29
9.2 Taring ........................................................................................................................................ 30
9.3 Switch-over weighing unit ......................................................................................................... 30
9.4 Hold function (FOB, FOB-NL/-LM/ models only)) ..................................................................... 31
9.5 Display background illumination (FOB, FOB-NL/-LM/ models only) ........................................ 31
9.6 Weighing with tolerance range (FOB, FOB-LM models only) .................................................. 32
10 Menu ............................................................................................................. 35
10.1 Call up menu ............................................................................................................................ 35
10.2 Navigation in the menu ............................................................................................................. 35
10.3 Exit menu / return to weighing mode ........................................................................................ 35
10.4 Menu overview ......................................................................................................................... 36
10.4.1 Models FOB-S ...................................................................................................................... 36
10.4.2 Models FOB-NS ................................................................................................................... 36
10.4.3 Models FOB-NL.................................................................................................................... 37
10.4.4 Models FOB-LM ................................................................................................................... 37
10.4.5 Models FOB ......................................................................................................................... 39
10.5 Menu settings ........................................................................................................................... 40
2 FOB-BA-e-2023
GB
Version 2.3 2020-07
Operating manual
10.5.1 Setting weighing units .......................................................................................................... 40
10.5.2 Automatic switch-off function „AUTO OFF“ in stand-by mode ............................................. 42
11 Error reports ................................................................................................. 44
12 Servicing, maintenance, disposal .............................................................. 45
12.1 Cleaning.................................................................................................................................... 45
12.2 Servicing, maintenance ............................................................................................................ 45
12.3 Disposal .................................................................................................................................... 45
13 Instant help ................................................................................................... 46
FOB-BA-e-2023 3
1 Technical data
KERN FOB-S, FOB-NS:
KERN FOB 500-1S FOB 5K1S
Readability (d) 0.1 g 1 g
Weighing range (max) 500 g 5000 g
Reproducibility 0.1g 1 g
Linearity ± 0.2 g ± 2 g
Weighing Units g, lb, oz, dwt, ozt
Recommended adjustment
weight, not added (class)
Warm-up time 10 min
Stabilization time (typical) 2 sec.
Operating temperature + 10° C .... + 40° C
Humidity of air 25% - 95% (non-condensing)
Housing stainless steel
(B x D x H) mm
Weighing plate, stainless steel
(mm)
Weight kg (net) 650 g
Auto off 2 min
Battery 9 V block
Input voltage Appliance 9 V / 100 mA
500 g (M1) 5000 g (M1)
170 x 150 x 40
120 x 150
Service life 20 h
Input voltage Mains adapter 230 V / 50 Hz
4 FOB-BA-e-2023
KERN FOB 0.5K-4NS FOB 5K-3NS
Readability (d) 0.1 g 1 g
Weighing range (max) 500 g 5000 g
Reproducibility 0.1g 1 g
Linearity ± 0.2 g ± 2 g
Weighing Units g, lb, oz, ozt, dwt
Recommended adjustment
weight, not added (class)
Warm-up time 10 min
Stabilization time (typical) 2 sec.
Operating temperature + 10° C .... + 35° C
Humidity of air 25% - 95% (non-condensing)
Housing stainless steel
(B x D x H) mm
Weighing plate, stainless steel
(mm)
Weight kg (net) 650 g
Auto off Options: 2, 3, 4, 5, min; off
Battery 9 V block
Input voltage Appliance 9 V / 100 mA
500 g (M1) 5000 g (M1)
170 x 150 x 40
120 x 150 x 10
Service life 24 h
Input voltage Mains adapter 230 V / 50 Hz
IP protection IP65
FOB-BA-e-2023 5
FOB-NL:
KERN FOB 3K-4NL FOB 7K-4NL
Item no./ Type TFOB 3K-4NL-A
Readability (d) 0,2 g 0.5 g / 1 g
Weighing range (max) 3 kg 5 kg / 7.5 kg
Reproducibility 0.5 g / 1 g 0.5 g / 1 g
Linearity ± 0 .6 g ± 1.5 g / 3 g
Recommended adjustment
weight, not added (class)
Warm-up time 30 min 30 min
Weighing Units g, lb, oz g, lb, oz, ozt, dwt
Stabilization time (typical) 2 sec.
Operating temperature + 5° C …. + 35° C
Humidity of air 25% - 95% (non-condensing)
Housing stainless steel
(B x D x H) mm
Weighing plate, stainless steel
(mm)
Weight kg (net) 3.8 kg
Auto off 2 min
Battery 4 x 1.5 V AA
3 kg (M1) 5 kg (M1)
285 x 255 x 90
252 x 200 x 14
Service life background illumination ON: 48 h
Service life background illumination OFF: 66 h
Input voltage Appliance 12 V / 500 mA
Input voltage Mains adapter 230 V / 50 Hz
IP protection IP67
6 FOB-BA-e-2023
KERN FOB 10K-3NL FOB 30K-3NL
Readability (d) 1 g / 2 g 2 g / 5 g
Weighing range (max) 8 kg / 15 kg 16 kg / 30 kg
Reproducibility 1 g / 2 g 2 g / 5 g
Linearity ± 3 g / 6 g ± 6 g / 15 g
Recommended adjustment
weight, not added (class)
Warm-up time 30 min 30 min
Weighing Units g, lb, oz, ozt, dwt
Stabilization time (typical) 2 sec.
Operating temperature + 5° C …. + 35° C
Humidity of air 25% - 95% (non-condensing)
Housing stainless steel
(B x D x H) mm
Weighing plate, stainless steel
(mm)
Weight kg (net) 3.8 kg
Auto off 2 min
Battery 4 x 1.5 V AA
Battery 4 x 1.5 V AA
10 kg (M1) 30 kg (M1)
285 x 255 x 90
252 x 200 x 14
Service life background illumination ON: 48 h
Service life background illumination OFF: 66 h
Input voltage Appliance 12 V / 500 mA
Input voltage Mains adapter 230 V / 50 Hz
IP protection IP67
FOB-BA-e-2023 7
calibration weight (A/D converter
KERN FOB-LM:
KERN FOB 1K-4LM FOB 3K-3LM
Item no./ Type TFOB 1K-4LM-A TFOB 3K-3LM-A
Readability (d) 0.5 g 1 g
Weighing range (max) 1.5 kg 3 kg
Verification value (e) 0.5 g 1 g
Verification class III III
Minimum weight (min) 10 g 20 g
Reproducibility 0.5 g 1 g
Linearity ± 1 .5 g ± 2 g
Recommended adjustment
weight, not added (class)
Range for zero point adjustment
(A/D converter value)
Range for adjustment w i th
value)
Warm-up time 10 min 10 min
Weighing unit g
Stabilization time (typical) 2 sec.
Operating temperature + 5° C …. + 35° C
Humidity of air 25% - 95% (non-condensing)
Housing (B x D x H) mm 285 x 255 x 90
Weighing plate, stainless steel
(mm)
Weight kg (net) 3.8 kg
1 kg (M1) 2 kg (M1)
3000 - 120000 3000 - 120000
30000 – 50000 40000 – 65000
252 x 200 x 14
Auto off 2 min
Battery 4 x 1.5 V AA
Input voltage Appliance 12 V / 500 mA
Input voltage Mains adapter 230 V / 50 Hz
IP protection IP67
8 FOB-BA-e-2023
Service life background illumination ON: 48 h
Service life background illumination OFF: 66 h
KERN FOB 6K-3LM FOB 10K-3LM
calibration weight (A/D converter
Item no./ Type TFOB 6K-3LM -A TFOB 10K-3LM-A
Readability (d) 2 g 5 g
Weighing range (max) 6 kg 15 kg
Verification value (e) 2 g 5 g
Verification class III III
Minimum weight (min) 40 g 100 g
Reproducibility 2 g 5 g
Linearity ± 4 g ± 10 g
Recommended adjustment
weight, not added (class)
Range for zero point adjustment
(A/D converter value)
Range for adjustment w i th
value)
Warm-up time 10 min 10 min
Weighing unit g
Stabilization time (typical) 2 sec.
Operating temperature + 5° C …. + 35° C
Humidity of air 25% - 95% (non-condensing)
Housing (B x D x H) mm 285 x 255 x 90
Weighing plate, stainless steel
(mm)
Weight kg (net) 3.8 kg
5 kg (M1) 10 kg (M1)
3000 - 120000 3000 - 10000
55000 – 80000 55000 – 80000
252 x 200 x 14
Auto off 2 min
Battery 4 x 1.5 V AA
Input voltage Appliance 12 V / 500 mA
Input voltage Mains adapter 230 V / 50 Hz
IP protection IP67
FOB-BA-e-2023 9
Service life background illumination ON: 48 h
Service life background illumination OFF: 66 h
KERN FOB:
KERN FOB 1.5K0.5 FOB 3K1 FOB 6K2
Item no./ Type TFOB 1K-4-A TFO B 3K-3-A TFOB 6K-3-A
Readability (d) 0.5 g 1 g 2 g
Weighing range (max) 1.5 kg 3 kg 6 kg
Reproducibility 0.5 g 1 g 2 g
Linearity 1.5 g 3 g 6 g
Recommended adjustment
weight, not added (class)
Warm-up time 10 min
Weighing Units g, lb, oz
Stabilization time (typical) 2 sec.
Operating temperature + 5° C …. + 35° C
Humidity of air 25% - 95% (non-condensing)
Housing (B x D x H) mm 235 x 175 x 62
Weighing plate, stainless steel
(mm)
Weight kg (net) 1.8 kg
Auto off 2 min
Rechargeable battery Standard
1.5 kg (M1) 3 kg (M1) 6 kg (M1)
175 x 165 x 7
Input voltage Appliance 12 V / 500 mA
Input voltage Mains adapter 100V - 240 V, 50 Hz
2 Declaration of conform ity
The current EC/EU Conformity declaration can be found online in:
www.kern-sohn.com/ce
10 FOB-BA-e-2023
3 Appliance overview
KERN FOB-NS:
KERN FOB-NL:
3.1 Components
KERN FOB-S:
FOB-BA-e-2023 11
KERN FOB:
1
3
2
5
6
KERN FOB-LM:
Pos. Description
1 Weighing pan
2 Keyboard
3 Display
4 Rechargeable battery charge display
5 Levelling screw
6 Bubble level (below weighing pan)
12 FOB-BA-e-2023
3.2 Keyboard overview
Button Description Description
ON/OFF-button
TARE-key
UNIT-button
• Turn on/off
• Taring
• Zeroing
• Taring
• Zeroing
• Switching the display background illumination
on/off (long key press)
• Taring
• Zeroing
• Switching the display background illumination
on/off (long key press)
• Switch-over weighing unit
HOLD button
Models FOB-S:
• Call up hold function
• Calling up tolerance weighing (FOB models only)
FOB-BA-e-2023 13
Models FOB-NS:
Models FOB-NL:
Models FOB-LM:
14 FOB-BA-e-2023
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