KERN HFB-BA-e-1212 Operating Instructions Manual

Operating instructions
Electronic Crane Scales

Logbook
Regular maintenance and care

KERN HFB

Version 1.2
10/2012
GB

HFB-BA-e-1212

PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
FL-33458
USA
From outside US: +1
Tel: [phone]
Fax: [phone]
[e-mail]

www.pce-instruments.com/english

www.pce-instruments.com

PCE Instruments UK Ltd.

Units 12/13

Southpoint Business Park

Ensign way

Hampshire / Southampton

United Kingdom, SO31 4RF

From outside UK: +44

Tel: [phone]

Fax: [phone]

[e-mail]

HFB-BA-e-1212

2

GB

KERN HFB

Version 1.2 10/2012

Operating instructions / l ogbook

Electronic Suspending Balance

Table of Contents

1. Technical Data ______________________________________________________________ 3

1.1 Dimensions _________________________________________________________________ 4

1.2 EC-Declaration of -Conformity ___________________________________________________ 5

2. General Safety Instructions ___________________________________________________ 6

3. The crane scales at a glance __________________________________________________ 9

3.1 Overview ___________________________________________________________________ 9

3.2 Display ____________________________________________________________________ 10

3.3 Keyboard __________________________________________________________________ 11

3.4 Numerical input via the navigation buttons ________________________________________ 11

3.5 Radio remote control _________________________________________________________ 12

3.6 Sticker ____________________________________________________________________ 12

4. Commissioning ____________________________________________________________ 13

4.1 Unpacking _________________________________________________________________ 13

4.2 Checking the original dimensions _______________________________________________ 14

4.3 Rechargeable battery operation _________________________________________________ 14

4.4 Suspending the balance_______________________________________________________ 15

5. Operation _________________________________________________________________ 16

5.1 Safety instructions ___________________________________________________________ 16

5.2 Loading the crane scales ______________________________________________________ 17

5.3 Turn on/off _________________________________________________________________ 20

5.4 Setting the balance to zero ____________________________________________________ 20

5.5 Taring _____________________________________________________________________ 21

5.6 Weighing __________________________________________________________________ 21

5.7 Record weight value (freeze) ___________________________________________________ 22

6. Menu _____________________________________________________________________ 23

7. Adjustment ________________________________________________________________ 25

8. Error messages ____________________________________________________________ 26

9. Cleaning, 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-1212 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-1212

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1.1 Dimensions

HFB-BA-e-1212 5

1.2 EC-Declaration of -Conformity

KERN & Sohn GmbH

EC-Declaration of -Conformity

EG-Konformitätserklärung EC-Declaration of -Conformity
EC-

Déclaration de conformité EC-Declaración de Conformidad

EC-Dichiarazione di conformità EC-Conformiteitverklaring
EC- Declaração de conformidade EC- Prohlášení o shode
EC-Deklaracja zgodności EC-Заявление о соответствии

D

Konformitäts­erklärung

Wir erklären hiermit, dass das Produkt, auf das sich diese Erklärung bezieht,
mit den nachstehenden Normen übereinstimmt.

GB

Declaration of
conformity

We hereby declare that the product to which this declaration refers conforms
with the following standards.

CZ

Prohlášení o
shode

Tímto prohlašujeme, že výrobek, kterého se toto prohlášení týká, je v souladu
s níže uvedenými normami.

E

Declaración de
conformidad

Manifestamos en la presente que el producto al que se refiere esta
declaración está de acuerdo con las normas siguientes

F

Déclaration de
conformité

Nous déclarons avec cela responsabilité que le produit, auquel se rapporte la
présente déclaration, est conforme aux normes citées ci-après.

I

Dichiarazione di
conformitá

Dichiariamo con ciò che il prodotto al quale la presente dichiarazione si
riferisce è conforme alle norme di seguito citate.

NL

Conformiteit­verklaring

Wij verklaren hiermede dat het product, waarop deze verklaring betrekking
heeft, met de hierna vermelde normen overeenstemt.

P

Declaração de
conformidade

Declaramos por meio da presente que o produto no qual se refere esta
declaração, corresponde às normas seguintes.

PL

Deklaracja
zgodności

Niniejszym oświadczamy, że produkt, którego niniejsze oświadczenie dotyczy,
jest zgodny z poniższymi normami.

RUS

Заявление о
соответствии

Мы заявляем, что продукт, к которому относится данная декларация,
соответствует перечисленным ниже нормам.

Electronic Balance: KERN HFB

EU Directive

Standards

2004/108/EC

EN55022: 2006 A1:2007

EN61000-3-3:1995+A1:2001+A2:2005

EN55024: 1998+A1:2001+A2:2003

2006/95/EC

EN 60950-1:2006
EN 60065:2002+A1:2006

2006/42/EC

EN13155:2003+A2:2009

2005 / 32 / EC

Date: 04.03.2011

Signature:

KERN & Sohn GmbH

Management

HFB-BA-e-1212

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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-1212 7

 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-1212

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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 (kern-sohn) 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-1212 9

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

HFB-BA-e-1212

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3.2 Display

[] over the symbol appears if

the capacity of the rechargeable battery will soon be
exhausted. The balance will be ready to operate for
about another 30 minutes, then it will switch off
automatically.

a the weight is in the area around the zero point

TARE the scales have been tared
HOLD the data-hold function is active

kg the current weighing unit is „kg“

lb the current weighing unit is „lb“

The LED display above is illuminated when the battery is being
recharged.

HFB-BA-e-1212 11

3.3 Keyboard

Button Designation Description of function

UNIT button

Switch-over weighing unit.

Exit menu, back to weighing mode.

HOLD button

The weight display is „frozen“ via the HOLD button
until the HOLD-button is pressed anew.

TARE button Taring

ZERO button

Corrects the zero point of the balance. The display is
set to zero.

ON/OFF key Turn on or off the balance

3.4 Numerical input via the navigation buttons

Button Navigation button Function

ESC Delete

 Digit selection

 Increase flashing digit

Terminate input

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3.5 Radio remote control

The balance can be operated by the radio remote control like by a keyboard. All

functions (excepted ON/OFF) can be selected.

The red LED must light up when any button is pressed. If it does not light up, the
batteries in the remote control must be exchanged.

Range on free surface (free of buildings) approx. 20 m.

1

Taring

2

Zeroing

3

Switch-over weighing unit

4

The weight display is „frozen“ via the

HOLD button until the HOLD-button is

pressed anew.

3.6 Sticker

 Do not stand or go under suspended loads.

 Do not use on building sites.

 Suspended loads have to be observed constantly.

(Example)

 Do not exceed the nominal load of crane scales.

 The product meets the requirements of the German

Equipment and Product Safety Act.