KERN HFB 300K100 User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
email: [e-mail]
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating instructions
Electronic Crane Scales
Logbook
Regular maintenance and care
KERN HFB
Version 1.4
2018-02
GB
HFB-BA-e-1814

HFB-BA-e-1814
2
GB
KERN HFB
Version 1.4 2018-02
Operating instructions / logbook
Electronic Suspending Balance
Table of Contents
1. Technical Data ______________________________________________________________ 3
1.1 Dimensions _________________________________________________________________ 4
1.2 Nameplate __________________________________________________________________ 5
1.3 EC-Declaration of -Conformity___________________________________________________ 6
2. General Safety Instructions ___________________________________________________ 7
3. The crane scales at a glance _________________________________________________ 10
3.1 Overview __________________________________________________________________ 10
3.2 Display ____________________________________________________________________ 11
3.3 Keyboard __________________________________________________________________ 12
3.4 Numerical input via the navigation buttons ________________________________________ 12
3.5 Radio remote control _________________________________________________________ 13
3.6 Sticker ____________________________________________________________________ 13
4. Commissioning ____________________________________________________________ 14
4.1 Unpacking _________________________________________________________________ 14
4.2 Checking the original dimensions _______________________________________________ 15
4.3 Rechargeable battery operation_________________________________________________ 15
4.4 Suspending the balance_______________________________________________________ 16
5. Operation _________________________________________________________________ 17
5.1 Safety instructions ___________________________________________________________ 17
5.2 Loading the crane scales______________________________________________________ 18
5.3 Turn on/off _________________________________________________________________ 21
5.4 Setting the balance to zero ____________________________________________________ 21
5.5 Taring_____________________________________________________________________ 22
5.6 Weighing __________________________________________________________________ 22
5.7 Record weight value (freeze)___________________________________________________ 23
6. Menu _____________________________________________________________________ 23
7. Adjustment ________________________________________________________________ 25
8. Error messages ____________________________________________________________ 26
9. Cleaning, Repair, Maintenance and Disposal ____________________________________ 27
9.1 Cleaning and Disposal________________________________________________________ 27
9.2 Regular maintenance and care _________________________________________________ 27
9.3 Checklist „regular maintenance“, (see chapter 9.2)__________________________________ 31
9.4 12-month maintenance (see chap. 9.2)___________________________________________ 35
10. Appendix__________________________________________________________________ 36
10.1 Checklist „Enhanced maintenance“ (General revision) _______________________________ 36
10.2 List „spare parts and repair of safety-relevant parts“_________________________________ 37

HFB-BA-e-1814 3
1. Technical Data
KERN HFB 150K50 HFB 300K100 HFB 600K200
Readability (d) 50 g 100 g 200 g
Weighing range (max) 150 kg 300 kg 600 kg
Taring range (subtractive) 150 kg 300 kg 600 kg
Reproducibility 50 g 100 g 200 g
Linearity ±100 g ±200 g ±400 g
Recommended adjustment
weight, not added (class) 150 kg (M1) 300 kg (M1) 500 kg (M1)
Stabilization time 2 s
Precision 0.2 % of max.
Warm-up time 10 min
Units kg, lb
Allowable ambient
temperature 0…+40 °C
Relative humidity 10 to 80 %, non-condensing
Supply voltage 220V -240V AC 50 Hz
Secondary voltage
powerpack 9V, 800 mA
Rechargeable battery
(standard equipment)
6 V 1.2 A
Service life – background illumination ON 30 h
Service life – background illumination OFF 40 h
Loading time 12 h
Display Digit height 25 mm
Housing size W x D x H 163 mm x 126 mm x 159 mm
Housing material Synthetic material
Material hook and shackle Nickel plated steel
Net weight 2 kg
Remote control (standard
equipment) Battery Size 23A (1 x 1.5V)
W x D x H 48 x 16 x 95 mm

HFB-BA-e-1814
4
1.1 Dimensions

HFB-BA-e-1814 5
1.2 Nameplate
1
KERN Logo
2
Model designation
3
Weighing range [Max]
4
Data for power supply
5
Company address
6
Readability [d]
7
Date of manufacture
8
CE mark
9
Disposal symbol
0 Serial number

HFB-BA-e-1814
6
1.3 EC-Declaration of -Conformity
KERN & Sohn GmbH
www.kern-sohn.com
Ziegelei 1
72336 Balingen-Frommern
Germany
+0049-[0]7433-9933-0
+0049-[0]7433-9933-149
[e-mail]
Déclaration de conformité UE | EU Declaration of Conformity | EU-Konformitätserklärung
FR Nous déclarons par la présente sous notre entière responsabilité que le produit concerné par cette
déclaration respecte les exigences des directives mentionnées ci-après.
EN We hereby declare and assume sole responsibility for the declaration that the product complies with the
directives hereinafter.
DE Wir erklären hiermit unter alleiniger Verantwortung, dass das Produkt, auf das sich diese Erklärung bezieht,
mit den nachstehenden Richtlinien übereinstimmt.
Type | Type | Typ
Nº de série | Serial no. | Seriennr.
HFB 150K50, HFB 300K100, HFB 600K200
xxxxxxxxxx
Marquage CE
Mark applied
CE Kennzeichnung
Directive UE
EU directive
EU-Richtlinie
Normes
Standards
Normen
2006/42/EC
(MD) EN 13155:2003/A2:2009
2011/65/EU
(RoHS) EN 50581:2012
2014/30/EU
(EMC)
EN 55022:2010
EN 55024:2010
EN 61000-3-3:2013
2014/35/EU
(LVD)
EN 60065:2014
EN 60950-1:2006/A2:2013
EN 61010-1:2010
Date | Date | Datum:
20.04.2016
Lieu de délivrance:
Place of issue:
Ort der Ausstellung:
72336 Balingen,
Germany
Albert Sauter
KERN & Sohn GmbH
Signature:
Signature:
Signatur:
Directeur Exécutif
Managing director
Geschäftsführer
Further language versions you will find online under:
www.kern-sohn.com/ce

HFB-BA-e-1814 7
2. General Safety Instructions
Duties of the owner-operator
Follow the national accident prevention regulations as well as the working, operating
and safety regulations of the owner-operator.
Observe all safety regulations of the crane manufacturer.
The balance may only be used for the proposed purpose. Any type of use which
is not specified in these operating instructions, will be considered as improper
use. The customer is solely responsible for material damage and injury of persons
resulting from an improper use, Messrs. KERN & Sohn will not be liable under
any circumstance.
Messrs. KERN & Sohn cannot be held liable, if the crane scales are modified or
used improperly and if damage is resulting from such use.
Carry out regular maintenance and care of the crane scales, the crane and the
load suspension devices (see chapter 9).
Log the test result and keep it in the logbook.
Organizational measures
Only trained and instructed staff may operate the balance.
Make sure that the operating instructions are kept nearby the operation site of the
crane scales.
Assembly, commissioning and maintenance should only be carried out by trained
specialists.
Repair of safety-relevant pieces may only be carried out by KERN or by service
partners authorized by Messrs. KERN. (competence certificate or training).
Use original spare parts only.
All repairs and spare parts must be documented by the service partner (see list,
chap. 10.3).
All maintenance must be documented (see checklist chap. 9.3).
Load suspending components may only be exchanged as a complete spare parts
set. The dimensions of the new components must be noted (see checklist chapter
9.3).
Ambient conditions
Never operate the crane scales in explosive environment. The serial version is
not explosion protected.
Operate the crane scales only under environmental conditions as specified in
these operating instructions (especially in chapter 1 „Technical data“).
Do not expose the crane scales to strong humidity. 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.
Do not operate the crane scales in corrosive environment.
Protect the crane scales against high humidity, vapours and dust.

HFB-BA-e-1814
8
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.
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 suspended on the crane hook only vertically, manually,
carefully and without jerks. As soon as a stable weighing value is reached the
weighing value can be read.
Use the crane scales only for lifting and weighing of freely movable loads.
Danger of injury due to improper use. Not allowed are e.g.:
- Exceeding the allowed nominal load of crane, crane scales or any type of
load attachment devices
- Conveying persons,
- Pulling loads over an inclined surface,
- Tearing-off, pulling or towing loads.
Modifications or reconstructions of the crane scales or of the crane are not
allowed.
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 suspended on the balance.) Do not leave permanent
load suspended on the balance. This may damage the measuring system as well as
safety-relevant parts.
The balance may only be used according to the described conditions. Other areas of
use must be released by KERN in writing.
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 and damage caused by media, liquids,
Natural wear and tear
The appliance is improperly set up or incorrectly electrically connected
The measuring system is overloaded
Safe working
Do not stand underneath suspended loads!
Position the crane in a way that the load is lifted vertically.
When working with the crane and crane scales wear personal safety equipment
(helmet, safety shoes etc.).

HFB-BA-e-1814 9
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.
Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
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.
Check the original dimensions, see chap. 4.2.
Shutdown and storage
Take off the crane scales from the crane and dismantle all load attachment
devices from the crane scales.
Do not store the crane scales at open air

HFB-BA-e-1814
10
3. The crane scales at a glance
The crane scales are a multi-purpose and cost-saving solution for overhead weighing
applications such as e.g. recycling, metal processing, machine engineering, transport
and logistics.
With the radio remote control operation will be more comfortable yet.
3.1 Overview
Fig. 1: Scales front and rear view Fig. 2: Radio remote control
1 Eyelet 7 Antenna
2
Display
8
Keyboard,
see chapter 3.5
3 Keyboard
4 Safety bracket
5 Hook, revolvable
6 Second display