KERN FOB Series User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [e-mail]
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating manual
Stainless steel table scales
KERN FOB
Type FOB-S
Type FOB NS
Type TFOB-NL-A
Type TFOB-LM-A
Type TFOB-A
Version 2.1
2018-10
GB
FOB-BA-e-1821

2 FOB-BA-e-1821
GB
KERN FOB
Version 2.12018-10
Operating manual
Stainless steel table scales
Contents
1Technical data................................................................................................ 4
2Declaration of conformity ........................................................................... 10
3Appliance overview ..................................................................................... 11
3.1 Components ............................................................................................................................. 11
3.2 Keyboard overview................................................................................................................... 13
3.3 Overview of display .................................................................................................................. 15
4Basic Information (General)........................................................................ 18
4.1 Proper use................................................................................................................................ 18
4.2 Improper Use............................................................................................................................ 18
4.3 Warranty................................................................................................................................... 18
4.4 Monitoring of Test Resources................................................................................................... 19
5Basic Safety Precautions............................................................................ 19
5.1 Pay attention to the instructions in the Operation Manual........................................................ 19
5.2 Personnel training..................................................................................................................... 19
6Transport and storage................................................................................. 19
6.1 Testing upon acceptance ......................................................................................................... 19
6.2 Packaging / return transport..................................................................................................... 19
7Unpacking, 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
8Verification (FOB-LM models only)............................................................ 30
9Operation...................................................................................................... 31
9.1 Simple weighing ....................................................................................................................... 31
9.2 Taring........................................................................................................................................ 32
9.3 Switch-over weighing unit......................................................................................................... 32
9.4 Hold function (FOB, FOB-NL/-LM/ models only))..................................................................... 33
9.5 Display background illumination (FOB, FOB-NL/-LM/ models only)........................................ 33
9.6 Weighing with tolerance range (FOB, FOB-LM models only).................................................. 34
10 Menu ............................................................................................................. 37
10.1 Call up menu ............................................................................................................................ 37
10.2 Navigation in the menu............................................................................................................. 37
10.3 Exit menu / return to weighing mode........................................................................................ 37
10.4 Menu overview ......................................................................................................................... 38
10.4.1 Models FOB-S...................................................................................................................... 38
10.4.2 Models FOB-NS................................................................................................................... 38
10.4.3 Models FOB-NL.................................................................................................................... 39
10.4.4 Models FOB-LM................................................................................................................... 39
10.4.5 Models FOB ......................................................................................................................... 41
10.5 Menu settings ........................................................................................................................... 42

FOB-BA-e-1821 3
10.5.1 Setting weighing units .......................................................................................................... 42
10.5.2 Automatic switch-off function „AUTO OFF“ in stand-by mode............................................. 44
11 Error reports................................................................................................. 46
12 Servicing, maintenance, disposal .............................................................. 47
12.1 Cleaning.................................................................................................................................... 47
12.2 Servicing, maintenance............................................................................................................ 47
12.3 Disposal.................................................................................................................................... 47
13 Instant help................................................................................................... 48

4 FOB-BA-e-1821
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) 200 g / 500 g (M1) 2000 g / 5000 g (M1)
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 170 x 150 x 40
Weighing plate, stainless steel
(mm) 120 x 150
Weight kg (net) 650 g
Auto off 2 min
Battery 9 V block
Service life 20 h
Input voltage Appliance 9 V / 100 mA
Input voltage Mains adapter 230 V / 50 Hz

FOB-BA-e-1821 5
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) 500 g (M1) 5000 g (M1)
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 170 x 150 x 40
Weighing plate, stainless steel
(mm) 120 x 150 x 10
Weight kg (net) 650 g
Auto off Options: 2, 3, 4, 5, min; off
Battery 9 V block
Service life 24 h
Input voltage Appliance 9 V / 100 mA
Input voltage Mains adapter 230 V / 50 Hz
IP protection IP65

6 FOB-BA-e-1821
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) 3 kg (M1) 5 kg (M1)
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 285 x 255 x 90
Weighing plate, stainless steel
(mm) 252 x 200 x 14
Weight kg (net) 3.8 kg
Auto off 2 min
Battery 4 x 1.5 V AA
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-1821 7
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) 10 kg (M1) 30 kg (M1)
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 285 x 255 x 90
Weighing plate, stainless steel
(mm) 252 x 200 x 14
Weight kg (net) 3.8 kg
Auto off 2 min
Battery 4 x 1.5 V AA
Battery 4 x 1.5 V AA
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

8 FOB-BA-e-1821
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) 1.5 kg (M1) 2 kg (M1)
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) 252 x 200 x 14
Weight kg (net) 3.8 kg
Auto off 2 min
Battery 4 x 1.5 V AA
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-1821 9
KERN FOB 6K-3LM FOB 10K-3LM
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) 6 kg (M1) 15 kg (M1)
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) 252 x 200 x 14
Weight kg (net) 3.8 kg
Auto off 2 min
Battery 4 x 1.5 V AA
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

10 FOB-BA-e-1821
KERN FOB:
KERN FOB 1.5K0.5 FOB 3K1 FOB 6K2
Item no./ Type TFOB 1K-4-A TFOB 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) 1.5 kg (M1) 3 kg (M1) 6 kg (M1)
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) 175 x 165 x 7
Weight kg (net) 1.8 kg
Auto off 2 min
Rechargeable battery Standard
Input voltage Appliance 12 V / 500 mA
Input voltage Mains adapter 100V - 240 V, 50 Hz
2 Declaration of conformity
The current EC/EU Conformity declaration can be found online in:
www.kern-sohn.com/ce